Post on 11-Dec-2021
NOTICEWhen handling supplemental restraint system components (removal,installation or inspection, etc.), always follow the direction given in the repairmanuals listed above to prevent accidents and supplemental restraintsystem malfunction.
FOREWORD
This wiring diagram manual has been prepared to provide
information on the electrical system of the 1999 GS 400 / GS
300.
Applicable models: UZS160 Series
JZS160 Series
For service specifications and repair procedures of the above
models other than those listed in this manual, refer to the
following manuals;
Manual Name Pub. No. 1999 LEXUS GS 400 / GS 300
Repair Manual Volume 1Volume 2
1999 LEXUS GS 400 / GS 300New Car Features
RM665U1RM665U2
NCF161U
All information in this manual is based on the latest product
information at the time of publication. However, specifications
and procedures are subject to change without notice.
A INTRODUCTION
This manual consists of the following 12 sections:
No. Section Description
A
INDEX Index of the contents of this manual.
A
INTRODUCTION Brief explanation of each section.
B HOW TO USE THISMANUAL Instructions on how to use this manual.
C TROUBLE–SHOOTING Describes the basic inspection procedures for electrical circuits.
D ABBREVIATIONS Defines the abbreviations used in this manual.
EGLOSSARY OFTERMS ANDSYMBOLS
Defines the symbols and functions of major parts.
F RELAY LOCATIONS Shows position of the Electronic Control Unit, Relays, Relay Block, etc.This section is closely related to the system circuit.
G ELECTRICALWIRING ROUTING
Describes position of Parts Connectors, Splice points, Ground points, etc.This section is closely related to the system circuit.
INDEX Index of the system circuits.
H
SYSTEM CIRCUITS
Electrical circuits of each system are shown from the power supply through groundpoints. Wiring connections and their positions are shown and classified by codeaccording to the connection method. (Refer to the section, ”How to use this manual”).The ”System Outline” and ”Service Hints” useful for troubleshooting are also containedin this section.
I GROUND POINTS Shows ground positions of all parts described in this manual.
JOVERALLELECTRICALWIRING DIAGRAM
Provides circuit diagrams showing the circuit connections.
K POWER SOURCE(Current Flow Chart) Describes power distribution from the power supply to various electrical loads.
L PART NUMBER OFCONNECTORS Indicates the part number of the connectors used in this manual.
HOW TO USE THIS MANUAL B
This manual provides information on the electrical circuits installed on vehicles bydividing them into a circuit for each system.
The actual wiring of each system circuit is shown from the point where the powersource is received from the battery as far as each ground point. (All circuitdiagrams are shown with the switches in the OFF position.)
When troubleshooting any problem, first understand the operation of the circuitwhere the problem was detected (see System Circuit section), the power sourcesupplying power to that circuit (see Power Source section), and the ground points(see Ground Points section). See the System Outline to understand the circuitoperation.
When the circuit operation is understood, begin troubleshooting of the problemcircuit to isolate the cause. Use Relay Location and Electrical Wiring Routingsections to find each part, junction block and wiring harness connectors, wiringharness and wiring harness connectors, splice points, and ground points of eachsystem circuit. Internal wiring for each junction block is also provided for betterunderstanding of connection within a junction block.Wiring related to each system is indicated in each system circuit by arrows(from__, to__). When overall connections are required, see the Overall ElectricalWiring Diagram at the end of this manual.
@@@@@@@@@@@@@@@@@@@@@@@@@@@@
ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ
W–R
7. 5AGAUGE
1
2
3
4
487
2 1 11
13
4
1
2
3
4
1
2
B18
BL
FROM POWER SOURCE SYSTEM (SEE PAGE 66)
R–L
R–L
G
W–B
W–B
W–B
W–B
W–B
W–B
Y–G
R
L 4
H17
R 6
DELAYCIRCUIT
S 6
B18
3
4
R 7
BV11
G–W
G–R
G–R
G–R
G–R
G–W
G–W
(W/G
)
(S/D
)(S
/D)
C 7
(SHIELDED)
BV11
I 5
LL
STOP LIGHT
15
7
TO ABS ECU
BO
50
15ASTOP
IB
IB
REAR LIGHTSWARNING LIGHT[COMB. METER]
3C
3C
IE114
STOP LIGHT SW
ST
OP
LIG
HT
RH
[RE
AR
CO
MB
. LI
GH
T R
H]
ST
OP
LIG
HT
RH
[RE
AR
CO
MB
. LI
GH
T L
H]
HIGH MOUNTEDSTOP LIGHT
[A]
[B]
[I]
[D]
[F]
[H]
[E]
[J]
[M]
[N]
[K]
[L]
[G]
[C]
LIGHT FAILURE SENSOR
B HOW TO USE THIS MANUAL
∗ The system shown here is an EXAMPLE ONLY. It is different to the actualcircuit shown in the SYSTEM CIRCUITS SECTION.
B
[A] : System Title
[B] : Indicates a Relay Block. No shading is used andonly the Relay Block No. is shown to distinguish itfrom the J/BExample : Indicates Relay Block No.1
[C] : ( ) is used to indicate different wiring andconnector, etc. when the vehicle model, enginetype, or specification is different.
[D] : Indicates related system.
[E] : Indicates the wiring harness and wiring harnessconnector. The wiring harness with male terminal isshown with arrows ( ).Outside numerals are pin numbers.
Female Male ( )
The first letter of the code for each wiring harnessand wiring harness connector(s) indicates thecomponent’s location, e.g, ”E” for the EngineCompartment, ”I” for the Instrument Panel andSurrounding area, and ”B” for the Body andSurrounding area.
When more than one code has the first and secondletters in common, followed by numbers (e.g, IH1,IH2), this indicates the same type of wiring harnessand wiring harness connector.
[F] : Represents a part (all parts are shown in sky blue).The code is the same as the code used in partsposition.
[G] : Junction Block (The number in the circle is the J/BNo. and the connector code is shown beside it).Junction Blocks are shaded to clearly separatethem from other parts.
3C indicatesthat it is insideJunction BlockNo.3
Example:
[H] : When 2 parts both use one connector in common,the parts connector name used in the wire routingsection is shown in square brackets [ ].
[I] : Indicates the wiring color.
Wire colors are indicated by an alphabetical code.
B = Black W = White BR = Brown
L = Blue V = Violet SB = Sky Blue
R = Red O = Orange LG = Light Green
P = Pink Y = Yellow GR = Gray
G = Green
The first letter indicates the basic wire color and thesecond letter indicates the color of the stripe.
Example: L – Y
L(Blue)
Y(Yellow)
[J] : Indicates a wiring Splice Point (Codes are ”E” for theEngine Room, ”I” for the Instrument Panel, and ”B”for the Body).
The Location of splice Point I 5 is indicated by theshaded section.
[K] : Indicates a shielded cable.
[L] : Indicates the pin number of the connector.The numbering system is different for female andmale connectors.
Example : Numbered in orderfrom upper left tolower right
Numbered in orderfrom upper right tolower left
Female Male
[M] : Indicates a ground point.
The first letter of the code for each ground point(s)indicates the component’s location, e.g, ”E” for theEngine Compartment, ”I” for the Instrument Paneland Surrounding area, and ”B” for the Body andSurrounding area.
[N] : Page No.
[O]
[P]
[Q]
[R]
[S]
[T]
[U]
[V]
[W]
B HOW TO USE THIS MANUAL
Current is applied at all times through the STOP fuse to TERMINAL 2 of the stop light SW.When the ignition SW is turned on, current flows from the GAUGE fuse to TERMINAL 8 of the light failure sensor, and also flowsthrough the rear lights warning light to TERMINAL 4 of the light failure sensor.
STOP LIGHT DISCONNECTION WARNINGWhen the ignition SW is turned on and the brake pedal is pressed (Stop light SW on), if the stop light circuit is open, the currentflowing from TERMINAL 7 of the light failure sensor to TERMINALS 1, 2 changes, so the light failure sensor detects thedisconnection and the warning circuit of the light failure sensor is activated.As a result, the current flows from TERMINAL 4 of the light failure sensor to TERMINAL 11 to GROUND and turns the rear lightswarning light on. By pressing the brake pedal, the current flowing to TERMINAL 8 of the light failure sensor keeps the warningcircuit on and holds the warning light on until the ignition SW is turned off.
S6 STOP LIGHT SW2–1 : Closed with the brake pedal depressed
L4 LIGHT FAILURE SENSOR1, 2, 7–GROUND : Approx. 12 volts with the stop light SW on
4, 8–GROUND : Approx. 12 volts with the ignition SW at ON position11–GROUND : Always continuity
: PARTS LOCATION
Code See Page Code See Page Code See Page
C7 34 L4 36 R7 37
H17 36 R6 37 S6 35
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 18 R/B No.1 (Instrument Panel Left)
@@@@@@@@@
ÀÀÀÀÀÀÀÀÀ
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
IB 20 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
3C 22 Instrument Panel Wire and J/B No.3 (Instrument Panel Left Side)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IE1 42 Floor Wire and Instrument Panel Wire (Left Kick Panel)
BV1 50 Luggage Room Wire and Floor Wire (Luggage Compartment Left)
: GROUND POINTS
Code See Page Ground Points Location
BL 50 Under the Left Quarter Pillar
BO 50 Back Panel Center
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I5 44 Cowl Wire B18 50 Luggage Room Wire
H17GRAY
1 2X421
X 7 8 X 11 XX
3
6
1
2
13X4 X
3
6
C7 L4 R6 R7 S6
[X]
SYSTEM OUTLINE
SERVICE HINTS
Pins used in the system circuit.
Occupied positions, but notapplicable to the system circuit.Unoccupied positions.
The pins shown are only for the highest grade, or only include those in the specification.
Junction Connector
Short TerminalSame Color
Junction connector (code: J1 to J24) in this manual include a shortterminal which is connected to a number of wire harnesses. Alwaysperform inspection with the short terminal installed. (Wheninstalling the wire harnesses, the harnesses can be connected toany position within the short terminal grouping. Accordingly, inother vehicles, the same position in the short terminal may beconnected to a wire harness from a different part.)Wire harness sharing the same short terminal grouping have thesame color.
HINT :
B
[O] : Explains the system outline.
[P] : Indicates values or explains the function for reference during troubleshooting.
[Q] : Indicates the reference page showing the position on the vehicle of the parts in the system circuit.
Example : Part ”L4” (Light Failure Sensor) is on page 36 of the manual.∗ The letter in the code is from the first letter of the part, and the number indicates its order in parts
starting with that letter.Example : L 4
ÁÁ
Parts is 4th in orderLight Failure Sensor
[R] : Indicates the reference page showing the position on the vehicle of Relay Block Connectors in the system circuit.
Example : Connector ”1” is described on page 18 of this manual and is installed on the left side of the instrumentpanel.
[S] : Indicates the reference page showing the position on the vehicle of J/B and Wire Harness in the system circuit.
Example : Connector ”3C” connects the Instrument Panel Wire and J/B No.3. It is described on page 22 of thismanual, and is installed on the instrument panel left side.
[T] : Indicates the reference page describing the wiring harness and wiring harness connector (the female wiringharness is shown first, followed by the male wiring harness).
Example : Connector ”IE1” connects the floor wire (female) and Instrument panel wire (male). It is described onpage 42 of this manual, and is installed on the left side kick panel.
[U] : Indicates the reference page showing the position of the ground points on the vehicle.
Example : Ground point ”BO” is described on page 50 of this manual and is installed on the back panel center.
[V] : Indicates the reference page showing the position of the splice points on the vehicle.
Example : Splice point ”I5” is on the Cowl Wire Harness and is described on page 44 of this manual.
[W] : Indicates connector to be connected to a part (the numeral indicates the pin No.) Explanation of pin use.
[X] : Connector ColorConnectors not indicated are milky white in color.
B HOW TO USE THIS MANUAL
The ground points circuit diagram shows the connections from all major parts to the respective ground points. Whentroubleshooting a faulty ground point, checking the system circuits which use a common ground may help you identifythe problem ground quickly. The relationship between ground points ( EA , IB and IC shown below) can also bechecked this way.
I GROUND POINTFAN MAIN RELAY
FAN MAIN RELAY
A/C FAN RELAY NO.2
A/C FAN RELAY NO.3
RADIATOR FAN MOTOR
RETRACT CONTROLRELAY
RETRACT MOTOR RH
RETRACT MOTOR LH
FRONT TURN SIGNAL LIGHT RH
PARKING LIGHT RH
FRONT TURN SIGNALLIGHT LH
PARKING LIGHT LH
DOOR LOCK CONTROLSW RH
DOOR KEY LOCKSW RH
DOOR LOCK MOTORRH
BLOWER RESISTOR
A/C AMPLIFIER
RADIO AND PLAYER
HEATER RELAY
AUTO ANTENNAMOTOR
BLOWER SW
PARKING BRAKE SW
COMBINATION METER
HORN SW [COMB. SW]
TURN SIGNAL FLASHER
DOOR KEY LOCK SW LH
DOOR LOCK MOTOR LH
FUEL CONTROL SW
WOOFER AMPLIFIER
COMBINATION METER
COMBINATION METER
FUEL SENDER
CIGARETTE LIGHTER
O/D MAIN SW
CLOCK
5
5
5
5
4
4
4
4
4BA15
IB18
EA210
3E5
3E6
3G13
3F3
3D1
3B7
ID115
IC33
IA12
E 3
A
AA
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B W–B W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B W–B
W–B
BR
W–B
BR BR
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
BR
W–B
BRBR
BR
W–B
W–B
W–B
W–B
W–B
BR
W–B (4A–GZE)
W–B
A
A
A
I 6
I 6
I 2
I 2
I 2
B 5I 5
I 5
I 5
B 5
B 5
B 5
I 5
I 5
I 3I 3
E 3
E 3
E 3
E 2
E 4
E 5
E 4
E 5
E 6E 4
E 4
B 4
EA
I 4
B 4
B 4
I 4 I 8
IB IC
3C7
4
JUNCTIONCONNECTOR
J 1
4
DOOR LOCK CONTROLRELAY
ELECTRICAL IDLE−UPCUT RELAY (M/T)
FRONT SIDE MARKERLIGHT RH
FRONT SIDE MARKERLIGHT LH
BRAKE FLUID LEVELWARNING SW
UNLOCK WARNINGSW
WIPER AND WASHERSW [COMB. SW]
LIGHT CONTROL SW[COMB. SW]
HEATER CONTROLASSEMBLY
HEATER SERVOMOTOR AMPLIFIER
DIMMER SW[COMB. SW]
CRUISE CONTROLMIRROR SW
REAR WINDOWDEFOGGER SW
POWER WINDOWMASTER SW
POWER WINDOWCONTROL RELAY
DOOR LOCK CONTROL SW
REMOTE CONTROLMIRROR SW
∗ The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION.
B
The ”Current Flow Chart” section, describes which parts each power source (fuses, fusible links, and circuit breakers)transmits current to. In the Power Source circuit diagram, the conditions when battery power is supplied to each systemare explained. Since all System Circuit diagrams start from the power source, the power source system must be fullyunderstood.
Theft Deterrent and Door Lock Control
K POWER SOURCE (Current Flow Chart)
11
1
EA11EA23
7
EB16
E 6
E 7 I 2 I 2
I 2
E 7
E 7
E 7
2
1
1
2
2
2
2
2
B
B
WW
BB
BB
B
W–B
B
B
B
B–O
B–W
W–B
B–W
STARTER RELAY
INJECTION RELAY
15A HAZ–RADIO
7.5A AM2
50A MAIN
1.25B FL MAIN
BATTERY
W W W
W
W
W
R
W–L
WW
G–W
G
15A TAIL
20A DEFOG
15A RAD CIG
TAILRELAY
7.5A DOME
40A DOOR LOCK CB
21
12
48
23
34
G
W–R
P–L
B–Y
B–Y
W–R
AM
2IG
2
AC
C
IG1
AM
1W
W
W–R
W
W
W–B
2 1
1
1
1
1
2
2
2
2
3
4
3
4
1
2
1
2
2
1
11
1
IGNITION SWI 8
Battery 30A AM2 2
Starter S 220A RADIO NO.1
10A HORN
15A EFI
7.5A DOMEShort Pin
10A HAZARD
The chart below shows the route by which current flows from the battery to each electrical source(Fusible Link, Circuit Breaker, Fuse, etc.) and other parts.
Engine Room R/B (See Page 20)
ABSABS and Traction ControlCruise ControlElectronically Controlled Transmission and A/T IndicatorMultiplex Communication System
Cigarette Lighter and Clock
Key Reminder and Seat Belt Warning
STOP
Fuse Page194
214
112
System
DOME
20A
10A
Combination MeterHeadlightInterior Light
2
2
6100A ALT
EB1
POWER SOURCELight Auto Turn Off
187180166210
230
122
10A ECU–B
560A ABS
2
6Fusible Link Block
2
∗ The system shown here is an EXAMPLE ONLY. It is different to the actual circuit shown in the SYSTEM CIRCUITS SECTION.
To Ignition SWIG Terminal
Fuse
VoltmeterSW 1
Relay
SW 2 Solenoid
[A]
[B]
[C]
Ohmmeter
SW
Ohmmeter
Diode
Digital Type Analog Type
C TROUBLESHOOTING
VOLTAGE CHECK
(a) Establish conditions in which voltage is present at the checkpoint.Example:
[A] – Ignition SW on[B] – Ignition SW and SW 1 on[C] – Ignition SW, SW 1 and Relay on (SW 2 off)
(b) Using a voltmeter, connect the negative lead to a good groundpoint or negative battery terminal, and the positive lead to theconnector or component terminal.This check can be done with a test light instead of a voltmeter.
CONTINUITY AND RESISTANCE CHECK
(a) Disconnect the battery terminal or wire so there is no voltagebetween the check points.
(b) Contact the two leads of an ohmmeter to each of the checkpoints.
If the circuit has diodes, reverse the two leads and checkagain.When contacting the negative lead to the diode positive sideand the positive lead to the negative side, there should becontinuity.When contacting the two leads in reverse, there should be nocontinuity.
(c) Use a volt/ohmmeter with high impedance (10 kΩ/Vminimum) for troubleshooting of the electrical circuit.
To Ignition SWIG Terminal
Test Light
RelayLight
SW 2 Solenoid
Disconnect
Short [A]
DisconnectDisconnect
SW 1
Fuse Case
Short [B]
Short [C]
Pull Up
Press Down Press Down
Pull Up
C
FINDING A SHORT CIRCUIT
(a) Remove the blown fuse and disconnect all loads of the fuse.(b) Connect a test light in place of the fuse.(c) Establish conditions in which the test light comes on.
Example:[A] – Ignition SW on[B] – Ignition SW and SW 1 on[C] – Ignition SW, SW 1 and Relay on (Connect the
Relay) and SW 2 off (or Disconnect SW 2)
(d) Disconnect and reconnect the connectors while watching thetest light.The short lies between the connector where the test lightstays lit and the connector where the light goes out.
(e) Find the exact location of the short by lightly shaking theproblem wire along the body.
CAUTION:(a) Do not open the cover or the case of the ECU unless
absolutely necessary. (If the IC terminals are touched,the IC may be destroyed by static electricity.)
(b) When replacing the internal mechanism (ECU part) ofthe digital meter, be careful that no part of your body orclothing comes in contact with the terminals of leadsfrom the IC, etc. of the replacement part (spare part).
DISCONNECTION OF MALE AND FEMALECONNECTORS
To pull apart the connectors, pull on the connector itself, notthe wire harness.
HINT : Check to see what kind of connector you aredisconnecting before pulling apart.
10
3
0.21
1
(mm)
Reference:
ToolUpExample:(Case 1)
Terminal Retainer
Terminal Retainer
[Retainer at Full Lock Position]
[Retainer at Temporary Lock Position]
StopperTerminalRetainer
SecondaryLocking Device
Example:(Case 2)
C TROUBLESHOOTING
HOW TO REPLACE TERMINAL(with terminal retainer or secondary locking device)
1. PREPARE THE SPECIAL TOOL
HINT : To remove the terminal from the connector, pleaseconstruct and use the special tool or like object shown onthe left.
2. DISCONNECT CONNECTOR
3. DISENGAGE THE SECONDARY LOCKING DEVICE OR
TERMINAL RETAINER.
(a) Locking device must be disengaged before the terminallocking clip can be released and the terminal removed fromthe connector.
(b) Use a special tool or the terminal pick to unlock the secondarylocking device or terminal retainer.
NOTICE:Do not remove the terminal retainer from connector body.
[A] For Non–Waterproof Type Connector
HINT : The needle insertion position varies according to the
connector’s shape (number of terminals etc.), so
check the position before inserting it.
”Case 1”
Raise the terminal retainer up to the temporary lock
position.
”Case 2”
Open the secondary locking device.
ToolTab
Tab
TerminalRetainer
Access Hole( Mark)
Tool
Tool
Female
Example:
Male
[Male] [Female]
Retainerat Full Lock Position
Retainerat Temporary Lock Position
Terminal Retainer
[Male] Press Down [Female]Press Down
ToolTool
Example:(Case 2)
C
[B] For Waterproof Type Connector
HINT : Terminal retainer color is differentaccording to connector body.
Example:Terminal Retainer : Connector BodyBlack or White : GrayBlack or White : Dark GrayGray or White : Black
”Case 1”Type where terminal retainer is pulledup to the temporary lock position (PullType).
Insert the special tool into the terminalretainer access hole (Mark) and pullthe terminal retainer up to thetemporary lock position.
HINT : The needle insertion position variesaccording to the connector’s shape(Number of terminals etc.), so checkthe position before inserting it.
”Case 2”Type which cannot be pulled as far asPower Lock insert the tool straight intothe access hole of terminal retainer asshown.
Retainer atFull Lock Position
[Male] [Female]
Retainer atTemporary Lock Position
Locking Lug
Tool
C TROUBLESHOOTING
Push the terminal retainer down to the temporary lock position.
(c) Release the locking lug from terminal and pull the terminal outfrom rear.
4. INSTALL TERMINAL TO CONNECTOR
(a) Insert the terminal.HINT:1. Make sure the terminal is positioned correctly.2. Insert the terminal until the locking lug locks firmly.3. Insert the terminal with terminal retainer in the temporary lock
position.
(b) Push the secondary locking device or terminal retainer in tothe full lock position.
5. CONNECT CONNECTOR
∗ The titles given inside the components are the names of the terminals (terminal codes) and are not treated as beingabbreviations.
ABBREVIATIONS D
ABBREVIATIONS
The following abbreviations are used in this manual.
ABS = Anti–Lock Brake System
A/C = Air Conditioning
ACIS = Acoustic Control Induction System
A/T = Automatic Transmission
CD = Compact Disc
COMB. = Combination
D/A = Digital/Analog
ECU = Electronic Control Unit
ESA = Electronic Spark Advance
ETCS–i = Electronic Throttle Control System–intelligent
EVAP = Evaporative Emission
HID = High Intensity Discharge
IC = Integrated Circuit
J/B = Junction Block
LED = Light Emitting Diode
LH = Left–Hand
MPX = Multiplex
O/D = Overdrive
PPS = Progressive Power Steering
R/B = Relay Block
RH = Right–Hand
SFI = Sequential Multiport Fuel Injection
SRS = Supplemental Restraint System
SW = Switch
TEMP. = Temperature
TRAC = Traction Control
VSC = Vehicle Skid Control System
VSV = Vacuum Switching Valve
VVT = Variable Valve Timing
w/ = With
w/o = Without
E GLOSSARY OF TERMS AND SYMBOLS
BATTERYStores chemical energy andconverts it into electrical energy.Provides DC current for the auto’svarious electrical circuits.
GROUNDThe point at which wiring attaches tothe Body, thereby providing a returnpath for an electrical circuit; without aground, current cannot flow.
CAPACITOR (Condenser)A small holding unit for temporarystorage of electrical voltage.
HEADLIGHTSCurrent flow causes a headlightfilament to heat up and emit light. Aheadlight may have either a single(1) filament or a double (2) filament
1. SINGLE FILAMENT
CIGARETTE LIGHTERAn electric resistance heatingelement.
2. DOUBLE FILAMENT
CIRCUIT BREAKERBasically a reusable fuse, a circuitbreaker will heat and open if toomuch current flows through it.Some units automatically reset whencool, others must be manually reset.
HORNAn electric device which sounds aloud audible signal.
DIODEA semiconductor which allowscurrent flow in only one direction.
IGNITION COILConverts low–voltage DC currentinto high–voltage ignition current forfiring the spark plugs.
DIODE, ZENERA diode which allows current flow in onedirection but blocks reverse flow only upto a specific voltage. Above that potential,it passes the excess voltage. This acts asa simple voltage regulator.
LIGHTCurrent flow through a filamentcauses the filament to heat up andemit light.
PHOTODIODEThe photodiode is a semiconductorwhich controls the current flowaccording to the amount of light.
LED (LIGHT EMITTING DIODE)Upon current flow, these diodes emitlight without producing the heat of acomparable light.
DISTRIBUTOR, IIAChannels high–voltage current fromthe ignition coil to the individualspark plugs.
METER, ANALOGCurrent flow activates a magneticcoil which causes a needle to move,thereby providing a relative displayagainst a background calibration.
FUSEA thin metal strip which burns throughwhen too much current flows through it,thereby stopping current flow andprotecting a circuit from damage.
FUSIBLE LINK
METER, DIGITALCurrent flow activates one or manyLED’s, LCD’s, or fluorescentdisplays, which provide a relative ordigital display.
FUEL
FUSIBLE LINKA heavy–gauge wire placed in highamperage circuits which burns through onoverloads, thereby protecting the circuit.The numbers indicate the crosssectionsurface area of the wires.
(for Medium Current Fuse)
(for High Current Fuse or Fusible Link)
MOTORA power unit which convertselectrical energy into mechanicalenergy, especially rotary motion.
M
E
RELAYBasically, an electrically operatedswitch which may be normallyclosed (1) or open (2).Current flow through a small coilcreates a magnetic field which eitheropens or closes an attached switch.
1. NORMALLY CLOSED
2. NORMALLY OPEN
SWITCH, MANUALOpens and closesi it th b
SPEAKERAn electromechanical device whichcreates sound waves from currentflow.
RELAY, DOUBLE THROWA relay which passes currentthrough one set of contacts or theother.
circuits, therebystopping (1) orallowing (2) currentflow.
1. NORMALLY OPEN
2. NORMALLY CLOSED
RESISTORAn electrical component with a fixedresistance, placed in a circuit toreduce voltage to a specific value.
SWITCH, DOUBLE THROWA switch which continuously passescurrent through one set of contactsor the other.
RESISTOR, TAPPEDA resistor which supplies two ormore different non adjustableresistance values.
SWITCH, IGNITIONA key operated switch with severalpositions which allows variouscircuits, particularly the primaryignition circuit, to becomeoperational.
RESISTOR, VARIABLE or RHEOSTATA controllable resistor with a variablerate of resistance.Also called a potentiometer orrheostat.
SENSOR (Thermistor)A resistor which varies its resistancewith temperature.
SWITCH, WIPER PARKAutomatically returns wipers to thestop position when the wiper switchis turned off.
(Reed Switch Type)
SENSOR, SPEEDUses magnetic impulses to openand close a switch to create a signalfor activation of other components.
TRANSISTORA solidstate device typically used asan electronic relay; stops or passescurrent depending on the voltageapplied at ”base”.
SHORT PINUsed to provide an unbrokenconnection within a junction block.
WIRESWires are always drawn asstraight lines on wiringdiagrams.Crossed wires (1) without ablack dot at the junction are
t j i d
(1) NOT CONNECTED
SOLENOIDAn electromagnetic coil which formsa magnetic field when current flows,to move a plunger, etc.
jnot joined;crossed wires (2) with ablack dot or octagonal ( )mark at the junction arespliced (joined)connections.
(2) SPLICED
F RELAY LOCATIONS
[Engine Compartment]
F
[Instrument Panel]
F RELAY LOCATIONS
[Body]
F
[Seat]
F RELAY LOCATIONS
1 : Engine Room No.1 R/B Engine Compartment Right (See Page 18)
F
2 : Engine Room No.2 R/B Engine Compartment Left (See Page 18)
F RELAY LOCATIONS
3 : Engine Room No.3 R/B Engine Compartment Left (See Page 18)
F
4 : Passenger Side R/B Right Kick Panel (See Page 19)
F RELAY LOCATIONS
: Driver Side J/B Left Kick Panel (See Page 19)
F
(Inner Circuit : See Page 32)
F RELAY LOCATIONS
: Passenger Side J/B Right Kick Panel (See Page 19)
F
(Inner Circuit : See Page 33)
F RELAY LOCATIONS
: Instrument Panel J/B Instrument Panel Reinforcement Center (See Page 19)
F
(Inner Circuit : See Page 34)
F RELAY LOCATIONS
[Driver Side J/B Inner Circuit]
F
[Passenger Side J/B Inner Circuit]
F RELAY LOCATIONS
[Instrument Panel J/B Inner Circuit]
MEMO
G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment[1UZ–FE]
A 1 A/C Ambient Temp. SensorA 2 A/C Condenser Fan MotorA 3 A/C Magnetic Clutch and Lock SensorA 4 A/C Triple Pressure SW (A/C Dual and Single
Pressure SW)A 5 ABS & TRAC & VSC ActuatorA 6 ABS & TRAC & VSC ActuatorA 7 ABS & TRAC & VSC ActuatorA 8 ABS Speed Sensor Front LHA 9 ABS Speed Sensor Front RHA10 Accelerator Pedal Position SensorA 11 Airbag Sensor Front LHA12 Airbag Sensor Front RH
B 1 Brake Fluid Level Warning SW
C 1 Camshaft Position SensorC 3 Camshaft Timing Oil Control Valve LHC 4 Camshaft Timing Oil Control Valve RHC 5 Crankshaft Position Sensor
D 1 Data Link Connector 1D 2 Daytime Running Light Relay No.3D 3 Daytime Running Light Relay No.4D26 Daytime Running Light Resistor or Short Connector
E 1 Electronically Controlled Transmission SolenoidE 2 Engine Control ModuleE 3 Engine Control ModuleE 4 Engine Control ModuleE 5 Engine Control ModuleE 6 Engine Control ModuleE 7 Engine Control ModuleE 8 Engine Coolant Temp. Sensor
E 9 Engine Hood Courtesy SWE10 Engine Oil Level SensorE 11 Exhaust Gas Sensor
F 1 Front Fog Light LHF 2 Front Fog Light RHF 3 Front Side Marker Light LHF 4 Front Side Marker Light RHF 5 Front Turn Signal and Parking Light LH F 6 Front Turn Signal and Parking Light RHF 7 Front Wiper Motor
G 1 GeneratorG 2 Generator
H 1 Headlight Beam Level Control ECUH 2 Headlight Beam Level Control ECUH 3 Headlight Beam Level Control MotorH 4 Headlight Cleaner Control RelayH 5 Headlight Cleaner MotorH 6 Headlight Control ECU LHH 7 Headlight Control ECU RHH 8 Headlight LH (High)H 9 Headlight LH (Low)H10 Headlight RH (High)H11 Headlight RH (Low)H12 Heated Oxygen Sensor (Bank 1 Sensor 1)H14 Heated Oxygen Sensor (Bank 2 Sensor 1)H15 Height Control Sensor (Front)H16 Horn LHH17 Horn RH
G
Position of Parts in Engine Compartment
I 2 Ignition Coil and Igniter No.1I 3 Ignition Coil and Igniter No.2I 4 Ignition Coil and Igniter No.3I 5 Ignition Coil and Igniter No.4I 6 Ignition Coil and Igniter No.5I 7 Ignition Coil and Igniter No.6I 8 Ignition Coil and Igniter No.7I 9 Ignition Coil and Igniter No.8I 13 Injector No.1I 14 Injector No.2I 15 Injector No.3I 16 Injector No.4I 17 Injector No.5I 18 Injector No.6I 19 Injector No.7I 20 Injector No.8
J 1 Junction ConnectorJ 2 Junction ConnectorJ 3 Junction ConnectorJ 4 Junction ConnectorJ 5 Junction Connector
K 1 Knock Sensor 1K 2 Knock Sensor 2
M 1 Mass Air Flow MeterM 2 Master Cylinder Pressure Sensor
N 1 Noise Filter (Ignition)
O 1 O/D Direct Clutch Speed SensorO 2 Oil Pressure SW
P 1 Park/Neutral Position SWP 3 PPS Solenoid
R 1 Radiator Fan Motor
S 1 StarterS 2 Starter
T 1 Theft Deterrent HornT 2 Throttle Control MotorT 3 Throttle Position Sensor
V 1 Vehicle Speed Sensor (Electronically Controlled Transmission)
V 2 VSV (ACIS)V 3 VSV (EVAP)V 4 VVT Sensor LHV 5 VVT Sensor RH
W 1 Washer Level Warning SWW 2 Washer MotorW 3 Water Temp. SWW 4 Wireless Door Lock Buzzer
G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment[2JZ–GE]
A 1 A/C Ambient Temp. SensorA 2 A/C Condenser Fan MotorA 3 A/C Magnetic Clutch and Lock SensorA 4 A/C Triple Pressure SW (A/C Dual and Single
Pressure SW)A 5 ABS & TRAC & VSC ActuatorA 6 ABS & TRAC & VSC ActuatorA 7 ABS & TRAC & VSC ActuatorA 8 ABS Speed Sensor Front LHA 9 ABS Speed Sensor Front RHA10 Accelerator Pedal Position SensorA 11 Airbag Sensor Front LHA12 Airbag Sensor Front RH
B 1 Brake Fluid Level Warning SW
C 1 Camshaft Position SensorC 2 Camshaft Timing Oil Control ValveC 5 Crankshaft Position Sensor
D 1 Data Link Connector 1D 2 Daytime Running Light Relay No.3D 3 Daytime Running Light Relay No.4D26 Daytime Running Light Resistor or Short Connector
E 1 Electronically Controlled Transmission SolenoidE 2 Engine Control ModuleE 3 Engine Control ModuleE 4 Engine Control ModuleE 5 Engine Control ModuleE 6 Engine Control ModuleE 7 Engine Control ModuleE 8 Engine Coolant Temp. Sensor
E 9 Engine Hood Courtesy SWE10 Engine Oil Level SensorE 11 Exhaust Gas Sensor
F 1 Front Fog Light LHF 2 Front Fog Light RHF 3 Front Side Marker Light LHF 4 Front Side Marker Light RHF 5 Front Turn Signal and Parking Light LH F 6 Front Turn Signal and Parking Light RHF 7 Front Wiper Motor
G 1 GeneratorG 2 Generator
H 1 Headlight Beam Level Control ECUH 2 Headlight Beam Level Control ECUH 3 Headlight Beam Level Control MotorH 4 Headlight Cleaner Control RelayH 5 Headlight Cleaner MotorH 6 Headlight Control ECU LHH 7 Headlight Control ECU RHH 8 Headlight LH (High)H 9 Headlight LH (Low)H10 Headlight RH (High)H11 Headlight RH (Low)H12 Heated Oxygen Sensor (Bank 1 Sensor 1)H13 Heated Oxygen Sensor (Bank 1 Sensor 2)H14 Heated Oxygen Sensor (Bank 2 Sensor 1)H15 Height Control Sensor (Front)H16 Horn LHH17 Horn RH
G
Position of Parts in Engine Compartment
I 1 IgniterI 10 Ignition Coil No.1I 11 Ignition Coil No.2I 12 Ignition Coil No.3I 13 Injector No.1I 14 Injector No.2I 15 Injector No.3I 16 Injector No.4I 17 Injector No.5I 18 Injector No.6
J 1 Junction ConnectorJ 2 Junction ConnectorJ 3 Junction ConnectorJ 4 Junction ConnectorJ 5 Junction Connector
K 1 Knock Sensor 1K 2 Knock Sensor 2
M 1 Mass Air Flow MeterM 2 Master Cylinder Pressure Sensor
N 1 Noise Filter (Ignition)
O 1 O/D Direct Clutch Speed SensorO 2 Oil Pressure SW
P 1 Park/Neutral Position SWP 2 Power Steering Oil Pressure SWP 3 PPS Solenoid
R 1 Radiator Fan Motor
S 1 StarterS 2 Starter
T 1 Theft Deterrent HornT 2 Throttle Control MotorT 3 Throttle Position Sensor
V 1 Vehicle Speed Sensor (Electronically ControlledTransmission)
V 2 VSV (ACIS)V 3 VSV (EVAP)
W 1 Washer Level Warning SWW 2 Washer MotorW 3 Water Temp. SWW 4 Wireless Door Lock Buzzer
G ELECTRICAL WIRING ROUTING
Position of Parts in Instrument Panel
A13 A/C Control AssemblyA14 A/C Control AssemblyA15 A/C Room Temp. SensorA16 A/C Solar SensorA17 A/C ThermistorA18 A/T Shift Position Illumination A19 ABS & TRAC & VSC ECUA20 ABS & TRAC & VSC ECUA21 ABS & TRAC & VSC ECUA22 ABS & TRAC & VSC ECUA23 ABS Deceleration SensorA24 Air Inlet Control Servo MotorA25 Air Mix Control Servo Motor (Driver Side)A26 Air Mix Control Servo Motor (Front Passenger Side)A27 Air Vent Mode Control Servo MotorA28 Airbag Squib (Front Passenger Airbag Assembly)A29 Airbag Squib (Steering Wheel Pad)A30 Automatic Light Control Sensor
B 2 Blower MotorB 3 Blower Motor ControllerB 4 Blower Motor ControllerB 5 Body ECU No.1B 6 Body ECU No.2
C 6 CD Automatic ChangerC 7 Center Airbag Sensor AssemblyC 8 Center Airbag Sensor AssemblyC 9 Center Airbag Sensor AssemblyC10 Cigarette LighterC11 ClockC12 Combination MeterC13 Combination MeterC14 Combination SWC15 Combination SW
C16 Combination SWC17 Combination SW
D 4 Data Link Connector 3D 5 Daytime Running Light Relay (Main)D 6 D/A ConverterD 7 Diode (Daytime Running Light)
E12 Electronically Controlled Transmission Pattern SelectSW
F 8 Fuel Lid Opener SW
G 3 Glove Box LightG 4 Glove Box Light SW
H18 Hazard SWH19 Headlight Cleaner SWH20 Heated Oxygen Sensor (Bank 1 Sensor 2)
[1UZ–FE]H21 Heated Oxygen Sensor (Bank 2 Sensor 2)
G
Position of Parts in Instrument Panel
I 21 Ignition Key Cylinder LightI 22 Ignition SW
J 6 Junction ConnectorJ 7 Junction ConnectorJ 8 Junction ConnectorJ 9 Junction ConnectorJ 10 Junction ConnectorJ 11 Junction ConnectorJ 12 Junction ConnectorJ 13 Junction ConnectorJ 14 Junction ConnectorJ 15 Junction ConnectorJ 16 Junction ConnectorJ 17 Junction ConnectorJ 18 Junction Connector
L 1 Luggage Compartment Door Opener SW
M 3 Multi–DisplayM 4 Multi–DisplayM 7 Mirror Retraction SW
P 4 Parking Brake SWP 5 Power OutletP 6 PPS ECU
R 2 Radio and PlayerR 3 Radio and PlayerR 4 Radio and PlayerR 5 Radio and PlayerR 6 Remote Control Mirror SWR 7 Rheostat
S 3 Seat Heater SWS 4 Shift Lock Control ECUS 5 Step Light LHS 6 Step Light RHS 7 Stereo Component AmplifierS 8 Stereo Component AmplifierS 9 Stereo Component AmplifierS10 Stereo Component AmplifierS 11 Stop Light SW
T 4 Telephone MicrophoneT 5 Tilt and Telescopic ECUT 6 Transponder Key AmplifierT 7 Turn Signal Flasher
U 1 Unlock Warning SW and Key Interlock Solenoid
V 6 VSC Off SWV 7 VSC Warning Buzzer
Y 1 Yaw Rate Sensor
G ELECTRICAL WIRING ROUTING
Position of Parts in Body
A31 ABS Speed Sensor Rear LHA32 ABS Speed Sensor Rear RHA33 Ashtray Illumination Rear LHA34 Ashtray Illumination Rear RHA35 Auto Antenna Control Relay and Motor
C18 Cellular Phone (Hand Set)C19 Cellular Phone (Hand Set)
D 8 Diode (Luggage Compartment Door Open Detection)D 9 Door Courtesy Light Front LHD10 Door Courtesy Light Front RHD11 Door Courtesy Light Rear LHD12 Door Courtesy Light Rear RHD13 Door Courtesy SW Front LHD14 Door Courtesy SW Front RHD15 Door Courtesy SW Rear LHD16 Door Courtesy SW Rear RHD17 Door Lock Control SW RHD18 Door Lock Motor , Door Key Lock and Unlock SW and
Door Lock Detection SW Front LHD19 Door Lock Motor , Door Key Lock and Unlock SW and
Door Lock Detection SW Front RHD20 Door Lock Motor and Door Lock Detection SW Rear LHD21 Door Lock Motor and Door Lock Detection SW Rear RHD22 Driver Door ECUD23 Driver Door ECUD24 Driver Door ECUD25 Driving Position Memory SW
F 9 Front Door Speaker LHF 10 Front Door Speaker RHF 11 Front Passenger Door ECUF 12 Front Passenger Door ECUF 13 Front Passenger Door ECUF 14 Fuel Lid Opener MotorF 15 Fuel Pump and SenderF 16 Fuel Pump Control ECUF 17 Fuel Sender (Sub)
G 5 Garage Door Opener
H22 Height Control Sensor (Rear)H23 High Mounted Stop Light (Bulb)H24 High Mounted Stop Light (LED)
I 23 Inner MirrorI 24 Interior Light Rear LHI 25 Interior Light Rear RH
J 19 Junction ConnectorJ 20 Junction ConnectorJ 21 Junction ConnectorJ 22 Junction Connector
G
Position of Parts in Body
L 2 License Plate Light LHL 3 License Plate Light RHL 4 Light Failure SensorL 5 Luggage Compartment Door Courtesy SW and
Opener MotorL 6 Luggage Compartment Door Key Unlock SWL 7 Luggage Compartment Light
M 5 Moon Roof Control ECUM 6 Moon Roof Control SW
N 2 Navigation ECUN 3 Navigation ECUN 4 Noise Filter (High Mounted Stop Light)N 5 Noise Filter (Rear Window Defogger)N 6 Noise Filter (Stop Light)
P 7 Personal LightP 8 Power Window Control SW Front RHP 9 Power Window Control SW Rear LHP10 Power Window Control SW Rear RHP 11 Power Window Master SWP12 Power Window Motor Front LHP13 Power Window Motor Front RHP14 Pretensioner LHP15 Pretensioner RH
R 8 Rear Combination Light LHR 9 Rear Combination Light LHR10 Rear Combination Light RHR11 Rear Combination Light RHR12 Rear Door LH ECUR13 Rear Door RH ECUR14 Rear Door Speaker LHR15 Rear Door Speaker RH
R16 Remote Control Mirror LHR17 Remote Control Mirror RH
S12 Side Airbag Sensor LHS13 Side Airbag Sensor RHS14 Stereo Component AmplifierS15 Stereo Component AmplifierS16 Stereo Component AmplifierS17 Stereo Component Amplifier
T 8 Telephone Transceiver and Speaker RelayT 9 Telephone Transceiver and Speaker RelayT 10 Tension Reducer Solenoid LHT 11 Tension Reducer Solenoid RH
V 8 Vanity Light LHV 9 Vanity Light RHV10 Vapor Pressure SensorV 11 VSV (Vapor Pressure Sensor)
W 5 Wireless Door Lock Control ECUW 6 Woofer (Speaker)
G ELECTRICAL WIRING ROUTING
Position of Parts in Seat
B 7 Buckle SW LHB 8 Buckle SW RH
J 23 Junction ConnectorJ 24 Junction Connector
L 8 Lumbar Support Control SW (Driver’s Seat)L 9 Lumbar Support Control SW (Front Passenger’s Seat)
P16 Power Seat Control SW (Driver’s Seat)P17 Power Seat Control SW (Front Passenger’s Seat)P18 Power Seat ECUP19 Power Seat ECUP20 Power Seat Motor (Driver’s Seat Front Vertical Control)P21 Power Seat Motor (Driver’s Seat Lumbar Support
Control)P22 Power Seat Motor (Driver’s Seat Rear Vertical Control)P23 Power Seat Motor (Driver’s Seat Reclining Control)P24 Power Seat Motor (Driver’s Seat Slide Control)P25 Power Seat Motor (Front Passenger’s Seat Front
Vertical Control)P26 Power Seat Motor (Front Passenger’s Seat Lumbar
Support Control)P27 Power Seat Motor (Front Passenger’s Seat Rear Vertical
Control)P28 Power Seat Motor (Front Passenger’s Seat Reclining
Control)P29 Power Seat Motor (Front Passenger’s Seat Slide
Control)P30 Power Seat Position Sensor (Driver’s Seat Front Vertical
Control) P31 Power Seat Position Sensor (Driver’s Seat Rear Vertical
Control)
P32 Power Seat Position Sensor (Driver’s Seat RecliningControl)
P33 Power Seat Position Sensor (Driver’s Seat Slide Control)
S18 Seat Belt Warning Occupant Detection SensorS19 Seat Heater (Driver’s Seat Back)S20 Seat Heater (Driver’s Seat Cushion)S21 Seat Heater (Front Passenger’s Seat Back)S22 Seat Heater (Front Passenger’s Seat Cushion)S23 Side Airbag Squib LHS24 Side Airbag Squib RH
MEMO
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness: Location of Ground Points
[1UZ–FE]
: Location of Splice Points
G
Connector Joining Wire Harness and Wire Harness
X 23 X 5 6 78 9 10 11 12
X2
3X567
89101112
X X 3
4 5 6 7 X 9
3 X X
4567X9
1 2 3 X5 X 7 8 9 10 11 11
X 3 2 1
5X78910
1 23 4 5 X X8 9 10 11 12
12
345XX
89101112
1 2
3 4
12
3432
1
3 2
1
1 2 3 X
X 6 7 8 9 10 X 3 2 1
X678910
EC1 BLACK
EA1 EA2
EA3 EA4
EB1 EB2
Code Joining Wire Harness and Wire Harness (Connector Location)
EA1
EA2Engine Wire and Cowl Wire (Inside of the ECU Box)
EA3Engine Wire and Cowl Wire (Inside of the ECU Box)
EA4
EB1Cowl Wire and Relay Block Wire (Inside of the Engine Room No 3 R/B)
EB2Cowl Wire and Relay Block Wire (Inside of the Engine Room No.3 R/B)
EC1 Engine No.2 Wire and Engine Wire (Near the Starter)
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness: Location of Ground Points
[2JZ–GE]
: Location of Splice Points
G
Connector Joining Wire Harness and Wire Harness
X 23 4 5 6 78 9 10 11 12
X2
34567
89101112
1 2 3 X
X 6 7 8 9 10 X 3 2 1
X678910
X 2 3
4 5 6 7 X 9
3 2 X
4567X9
X X 3 XX X 7 X 9 10 11 11
X 3 X X
XX7X910
1 2
3 4
12
34
1 23 4 5 X X8 9 10 11 12
12
345XX
89101112
EA1 EA2
EA3 EA4
EB1 EB2
Code Joining Wire Harness and Wire Harness (Connector Location)
EA1
EA2Engine Wire and Cowl Wire (Inside of the ECU Box)
EA3Engine Wire and Cowl Wire (Inside of the ECU Box)
EA4
EB1Cowl Wire and Relay Block Wire (Inside of the Engine Room No 3 R/B)
EB2Cowl Wire and Relay Block Wire (Inside of the Engine Room No.3 R/B)
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
: Location of Ground Points
G
Connector Joining Wire Harness and Wire Harness
Code Joining Wire Harness and Wire Harness (Connector Location)
IA1Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
IA2Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
IB1 Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC1
IC2 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
IC3
( )
ID1 Cowl Wire and Cowl Wire (Left Side of the Instrument Panel Reinforcement)
IE1Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IE2Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IF1 Cowl Wire and Cowl Wire (Right Side of the Steering Column)
IG1 Cowl Wire and Blower Sub Wire (Left Side of the Blower Unit)
IH1 Instrument Panel Wire and A/C Sub Wire (Left Side of the Blower Unit)
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
: Location of Splice Points
G
Connector Joining Wire Harness and Wire Harness
Code Joining Wire Harness and Wire Harness (Connector Location)
II1
II2Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
II3Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
II4
IJ1
IJ2 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IJ3
( )
IK1 Front Door RH Wire and Cowl Wire (Right Kick Panel)
IL1
IL2 Floor No.1 Wire and Cowl Wire (Right Kick Panel)
IL3
( g )
IM1Instrument Panel Wire and Floor No 1 Wire (Front RH Side of the Shift Lever)
IM2Instrument Panel Wire and Floor No.1 Wire (Front RH Side of the Shift Lever)
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness: Location of Ground Points
: Location of Splice Points
G
Connector Joining Wire Harness and Wire Harness
1 23 4 5 6 78 9 X 11 12
12
34567
89X1112
1 23 4 5 6 78 9 10 11 12
12
34567
89101112
BA1 BB1
Code Joining Wire Harness and Wire Harness (Connector Location)
BA1 Rear Door LH Wire and Floor No.2 Wire (Under the Center Pillar LH)
BB1 Rear Door RH Wire and Floor No.1 Wire (Under the Center Pillar RH)
G ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
: Location of Splice Points
G
Connector Joining Wire Harness and Wire Harness
1 23 4 X X 78 9 10 11 12
12
34XX7
89101112
1 2X X X 6 XX 9 X X 12
12
XXX6X
X9XX12
BC1 BD1
Code Joining Wire Harness and Wire Harness (Connector Location)
BC1 Floor No.2 Wire and Front Seat LH Wire (Under the Driver’s Seat)
BD1 Floor No.1 Wire and Front Seat RH Wire (Under the Front Passenger’s Seat)
AUTO ANTENNA
15ARADIONO. 2
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1H10
AUTO ANTENNA CONTROL RELAY AND MOTORA35
BM
A
JUN
CTI
ON
CO
NN
EC
TOR
J22
7
W–B
W–B
15AECU–IG
1H5
10ADOME
2E5
3 4 5G
RG
R
L–Y
B–R
W–R
W–L
B–W
W–R
W–L
B–W
B–W
W–L
W–R
RADIO AND PLAYERR 4
JUN
CTI
ON
CO
NN
EC
TOR
863 1 2 5
AUTO ANTENNA MOTOR
MIC
AU
TO A
NTE
NN
A C
ON
TR
OL
RE
LAY
IJ24 IJ214 IJ213
IL112 IL113 IL14IL13
GR
D
DJ1
3
J 7
B
BJUN
CTI
ON
CO
NN
EC
TOR
B
J15
BJUN
CT
ION
CO
NN
EC
TOR
2F11
2E2
B–R
B–R
B–R
ANTB ANTA ANT
A35 AUTO ANTENNA CONTROL RELAY AND MOTOR3–GROUND : Always approx. 12 volts6–GROUND : Approx. 12 volts with ignition SW at ON position8–GROUND : Approx. 12 volts with ignition SW at ACC or ON position7–GROUND : Always continuity
: PARTS LOCATION
Code See Page Code See Page Code See Page
A35 42 J13 41 J22 42
J7 41 J15 41 R4 41
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1H 27 Cowl Wire and Driver Side J/B (Left Kick Panel)
2E 28 Floor No.1 Wire and Passenger Side J/B (Right Kick Panel)
2F 28 Cowl Wire and Passenger Side J/B (Right Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IJ2 52 Instrument Panel Wire and Cowl Wire Left Side of the Blower Unit
IL1 52 Floor No.1 Wire and Cowl Wire Right Kick Panel
: GROUND POINTS
Code See Page Ground Points Location
BM 54 Quarter Panel RH
1 2 3X 5 6 7 8
3 4 5 X X
A35 J7 J13 J15
J22 R4
GRAY
B B B B B B B
(Hint : See Page 7)
D
DD
D
B
B B B B
A A
A A A A
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
SERVICE HINTS
AUTOMATIC AIR CONDITIONING
50AHEATER
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
2
1
2 5
4
1 3
4 4
4 44
10AHEATER
1F8
EB19
2 3
1 5
3 3
3 3
15ARADIONO. 2
1C1
5AECU–B2
2F3
3G3
3E3
EB
EB111
II
2F12
D13 D27 A29
F23 F22 B18
1
4
E 4
2
1
EA12
EB1
10
4
1 3 2
GR
W–R
L–R
L–W
R–L
L
L–R
L–W
R–L
R–L
R–L
R–L R–L
R–L
LL
W–R GR
W–R
W–B
EXHAUST GAS SENSORE11
L–W L–WL–W
L–B V
W–B
V
W–B
W–B
W–B
L–O
L–B
LG–R
BR
L
L–O
GR(*1)
W–B BR
W–BW–B AA
3
JUNCTIONCONNECTOR
J17
A/C
DU
AL
PR
ES
SU
RE
SW
A 4
A/C
AM
BIE
NT
TEM
P.
SE
NS
OR
A 1
ENGINE CONTROL MODULE
FE 5 E 7D
BODY ECUNO. 1
HTRRELAY
A/C COMPRELAY
II12 C
CC
JUN
CTI
ON
CO
NN
EC
TOR
J13
IG
GND GAS S. G
C
C
JUNCTIONCONNECTOR
J18
D13 F24 F21
D21 D10 B18
(*1)(*2)
(*1)(*2)
ACMG MPX2 LCKI
E2TAMPRE
GR(*2)
,
M2 1
BLOWER MOTORB 2
A2A1
B3 B1B2
IG12 IG11 IG13
W–B
R–L
L–B
L–B
R–L W–B
R B
BE 2 E 3A , ,
B 3
BLO
WE
R M
OTO
R C
ON
TRO
LLE
R
BA
, B
4
M+ M–
+B SI GND
HR
A2 A1
IJ111 IJ112 IJ15 IJ14 IJ13
A15 A3 A4 A5 A18 10 A A21 6 A A7 A14
IJ113 IJ16
2
1
A19
3E5
3G5
1C6
1F13
IF II
EA21
A22
A
A
1 3
3 7 6 5 1
A
A
AIR INLET CONTROL SERVO MOTORA24
A/C MAGNETIC CLUTCHAND LOCK SENSOR
A 3
JUNCTIONCONNECTOR
J 2
JUNCTIONCONNECTOR
J 6
JUNCTIONCONNECTOR
J17
A
2
W–R
L–R
L–W
R–L
L
L–W
GR(*1)
B–Y
W–RGR
L–R
L–W
R–L L
B–O
W–L
R–B
R–W
B–W R B–Y
W–R
L–R
L–W
R–L L R
B–Y
W–B
W–B
W–B
W–B
W–B
BR
BR
L–W
GR
A/C CONTROL ASSEMBLY
A13 A BA14
A/C
RO
OM
TE
MP
. S
EN
SO
RA
15
W–B
* 1 : 1UZ–FE
EA411
( *1)
GR
(*2)
E 1
ECED
BR
BR
1G6
EB
AW–B
SG MFRS MREC TPI S5
ACC +B SG–1 DGS BLW MPX+ SG–4 AIF AIR TPI S5–4 TR SG–3 GND
* 2 : 2JZ–GE,
M
AUTOMATIC AIR CONDITIONING
B10 B15 7 B 13 B 5 B
5 7 6 1 3
AIR MIX CONTROL SERVO MOTOR(DRIVER SIDE)
A25
A/C CONTROL ASSEMBLY
BA13 A14A
W B–O
B–W B B–L
TPDr AMCDr AMHDr SG–5 S5–3
IH15IH14IH111IH110IH19
3 B 14 B 6 B
6 IH1
1 3 5 6 7
IH17
AIR VENT MODE CONTROL SERVO MOTORA27
G–O
G–Y G
8 IH1
TPO AOD AOF
G–O
G–Y G
,
B2
1 IH1
R–G
TE
2
1
R–G W B–O
B–W B–Y
B–R
W B–O
B–W B–Y
B–R
B–Y
B–R
G–O
G–Y G
I 2
I 2
I 2
I 2
B–Y
B–Y
A/CTHERMISTOR
A17
B–R
B–Y
B–R
B–Y
B–R
B–Y
B–R
B–R
M M
IJ110
A16
2
7
8
L–R
W
W
W
MU
LTI–
DIS
PLA
YM
3
( *3)
( *3)
( *4)
A/C CONTROL ASSEMBLY
BA13 A14A * 4 : W/O LEXUS NAVIGATION SYSTEM* 3 : W/ LEXUS NAVIGATION SYSTEM
MPX–
MPX1
TEL IN
A17
GR
–R
IJ12
IL115
GR
–R
G–W
G–B
B11 16 B 8 B
12 IH1
1 3 5 7 6
IH113
AIR MIX CONTROL SERVO MOTOR(FRONT PASSENGER SIDE)
A26
G–R
G–W
G–B
14 IH1
TPPa
G–R
AMCPa AMHPa
G–R
B–Y
B–R
G–W
G–B
B–R
,
B1 9 B 4 B
2 3 1
A/C SOLAR SENSORA16
W–R
W–G
B–R
TSPa TSDr S5–2
W–R
W–G
B–R
M
B–Y
3
GR
–R
TILT
AN
DTE
LES
CO
PIC
EC
U
T 5
TELE
PH
ON
E T
RA
NS
CE
IVE
RA
ND
SP
EA
KE
R R
ELA
Y
T 9
MPX1
MPX2
AUTOMATIC AIR CONDITIONING
1. HEATER BLOWER OPERATIONManual operationWhen the blower speed is set to a certain level using the blower control SW, the A/C control assembly sends the signals tothe blower control to control the blower motor speed.Auto operationWhen the auto SW is turned on, the A/C control assembly sends the signals from various sensors and temperature SW tothe blower control to automatically control the blower motor speed.
2. AIR INLET CONTROL SERVO MOTOR CONTROLWhen the FRESH/RECIRC select SW is set to RECIRC, the motor in the air inlet control servo motor starts rotating to movethe damper toward the RECIRC side. Since the damper position is detected by the TERMINAL TP1 of the A/C controlassembly, the motor is continuously rotated until the damper reaches its stop position.When the FRESH/RECIRC select SWis set to FRESH, the motor in the air inlet control servo motor starts rotating to move the damper toward the FRESH side.Since the damper position is detected by the TERMINAL TP1 of the A/C control assembly, the motor is continuously rotateduntil the damper reaches its stop position.When the FRESH/RECIRC select SW is set to AUTO, the exhaust gas sensorinstalled in the engine room monitors contents in the exhaust gas and FRESH or RECIRC is automatically switched.
3. AIR VENT MODE CONTROL SERVO MOTOR CONTROLWhen the mode select SW is pushed, the ECU in the A/C control assembly activates the air vent mode control servo motor.This causes the servo motor to rotate to the position (FACE, BI–LEVEL, FOOT, FOOT/DEF, DEF) selected using the modeselect SW, and moves the film damper.
4. AIR MIX CONTROL SERVO MOTOR CONTROLWhen the temperature control SW on the driver’s side is pressed, the ECU in the A/C control assembly sends a signal to theair mix control servo motor on the driver’s side. This signal drives the motor to reach the temperature set by the temperaturecontrol SW on the driver’s side, and moves the film damper. Passenger’s side is operated as same as the driver’s side.
5. AIR CONDITIONING OPERATIONThe A/C control assembly receives various signals, I.E., the engine RPM from the crankshaft position sensor, outlettemperature signal from the A/C ambient temp. sensor, coolant temperature from the engine coolant temp. sensor and thelock signal from the A/C compressor, etc. When the engine is started and the A/C SW is on, a signal is input to the ECU(Built into the A/C control assembly). As a result, the ground circuit in A/C control assembly is closed and current flows fromHEATER fuse to TERMINAL 1 of the A/C COMP relay to TERMINAL 2 to TERMINAL ACMG of the engine control module toTERMINAL MPX2 to TERMINAL MPX+ of the A/C control assembly to TERMINAL GND to GROUND, turning the relay onso that the A/C magnetic clutch is on and the A/C compressor operates. At the same time, the engine control module detectsthe magnetic clutch is on and the A/C compressor operates and rotates the motor to the open direction to avoid lowering theengine RPM during A/C operation. When any of the following signals are input to the A/C control assembly, the controlassembly operates to turn off the air conditioning.∗ Coolant temp. signal is high.∗ A signal that the temperature at the air outlet is low.∗ A signal that there is a large difference between engine speed and compressor speed.∗ A signal that the refrigerant pressure is abnormally high or low.
A4 A/C DUAL PRESSURE SW1–4 : Open with the refrigerant pressure at less than approx. 216 kpa (2.2 kgf/cm2, 31 psi) or more than
approx. 3138 kpa (32 kgf/cm2, 455 psi)
A13 (A) A/C CONTROL ASSEMBLY+B–GROUND : Always approx. 12 volts
ACC–GROUND : Approx. 12 volts with ignition SW at ACC or ON positionAIF–GROUND : Approx. 12 volts with FRESH SW onAIR–GROUND : Approx. 12 volts with RECIRC SW on
GND–GROUND : Always continuity
SYSTEM OUTLINE
SERVICE HINTS
: PARTS LOCATION
Code See Page Code See Page Code See Page
A136 (1UZ–FE) A25 40
E1136 (1UZ–FE)
A138 (2JZ–GE) A26 40
E1138 (2JZ–GE)
A336 (1UZ–FE) A27 40
J237 (1UZ–FE)
A338 (2JZ–GE) B2 40
J239 (2JZ–GE)
A436 (1UZ–FE) B3 A 40 J6 41
A438 (2JZ–GE) B4 B 40 J13 41
A13 A 40 E2 A 38 (2JZ–GE) J17 41
A14 B 40E3 B
36 (1UZ–FE) J18 41
A15 40E3 B
38 (2JZ–GE) M3 41
A16 40E5 D
36 (1UZ–FE) T5 41
A17 40E5 D
38 (2JZ–GE) T9 43
A24 40 E7 F 36 (1UZ–FE)
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
3 24 Engine Room No.3 R/B (Engine Compartment Left)
4 25 Passenger Side R/B (Right Kick Panel)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1C 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26Cowl Wire and Driver Side J/B (Left Kick Panel)
1G 27Cowl Wire and Driver Side J/B (Left Kick Panel)
2F 28 Cowl Wire and Passenger Side J/B (Right Kick Panel)
3E31 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Reinforcement Center)
3G31 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Reinforcement Center)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA146 (1UZ–FE)
EA148 (2JZ–GE)
EA246 (1UZ–FE)
Engine Wire and Cowl Wire (Inside of the ECU Box)EA248 (2JZ–GE)
Engine Wire and Cowl Wire (Inside of the ECU Box)
EA446 (1UZ–FE)
EA448 (2JZ–GE)
EB146 (1UZ–FE)
Cowl Wire and Relay Block Wire (Inside of the Engine Room No 3 R/B)EB148 (2JZ–GE)
Cowl Wire and Relay Block Wire (Inside of the Engine Room No.3 R/B)
IG1 50 Cowl Wire and Blower Sub Wire (Left Side of the Blower Unit)
IH1 50 Instrument Panel Wire and A/C Sub Wire (Left Side of the Blower Unit)
II1 52 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
IJ1 52 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IL1 52 Floor No.1 Wire and Cowl Wire (Right Kick Panel)
AUTOMATIC AIR CONDITIONING
: GROUND POINTS
Code See Page Ground Points Location
EB46 (1UZ–FE)
Left FenderEB48 (2JZ–GE)
Left Fender
EC46 (1UZ–FE) RH Bank of the Cylinder Head
EC48 (2JZ–GE) Front Side of the Intake Manifold
ED46 (1UZ–FE) LH Bank of the Cylinder Head
ED48 (2JZ–GE) Rear Side of the Intake Manifold
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E146 (1UZ–FE)
Engine WireE4 48 (2JZ–GE) Cowl Wire
E148 (2JZ–GE)
Engine WireI2 52 A/C Sub Wire
E4 46 (1UZ–FE) Cowl Wire
1 2 213
1
4
1 2 3 4 5 6 7 X X 10 X
X 14 1516171819 21 22
1 2 3 4 5 6 7 8
9 1011 X 13141516
1 21 2
1 2 3
1 X 3 X 5 6 7
1 X 3 X 5 6 7 1 X 3 X 5 6 71 2
1 2
1 2 3
X
29
X
8
1
X
8
1
BLACK GRAY BLACKA13 (A)
A14 (B) A17BLACK BLACK BLACK
BLACK BLACK BLACK BLACK
BLACK (2JZ–GE) (1UZ–FE) (2JZ–GE)
A1 A3 A4
A15 A16 A24
A25 A26 A27 B2 B3 (A)
B4 (B) E2 (A) E3 (B) E3 (B)
1 X 3 X 5 6 7
A A A A AA A A A A A A A
A A
A A A A C
CC
CC
AAAA A A C C
C C 2 X
X 8 X X X X X
1 2 3 4
7 X
3
X
ORANGEJ6 J13
J17BLUE BLUE
BLACK
GRAY
T9
(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
X X
X 13 X
X
X
X
X X X X
10 X 13 X X X
X X X
X
21
27
X X X X X X X X
212223 24
(1UZ–FE) (2JZ–GE) (1UZ–FE)E5 (D) E5 (D) E7 (F)
E11 J2
J18 M3 T5
AUTOMATIC GLARE–RESISTANT EC MIRROR
15AECU–IG
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1H5
B
B
B
B
2D1
2F11
2D3
2G5
2D10
2H7
2D5
2F13
IB115 IK114IK115IB114
2G6
IIIFEB
A
A
A
JUNCTIONCONNECTOR
J 6
JUNCTIONCONNECTOR
J10
JUNCTIONCONNECTOR
J 7
JUNCTIONCONNECTOR
J15
INNER MIRRORI23B
–RB
–R
B–R
G–R
G–O
W–B
G–R
G–O
G–R
G–R
G–O
W–B
W–B
W–B
G–R
G–O
G–R
G–O
B–R
G–R
G–O
W–B
1 2 3 4
A
W–B
* 1 : W/ DRIVING POSITION MEMORY* 2 : W/O DRIVING POSITION MEMORY
I 6
I 6
R16REMOTE CONTROLMIRROR LH
R17REMOTE CONTROLMIRROR RH
IG EC+ EC– GND
3434
I23 INNER MIRROR1–GROUND : Approx. 12 volts with ignition SW at ON or ST position4–GROUND : Always continuity
: PARTS LOCATION
Code See Page Code See Page Code See Page
I23 42 J10 41 R17 43
J6 41 J15 41
J7 41 R16 43
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1H 27 Cowl Wire and Driver Side J/B (Left Kick Panel)
2D 28 Roof Wire and Passenger Side J/B (Right Kick Panel)
2F 28
2G29
Cowl Wire and Passenger Side J/B (Right Kick Panel)
2H29
g ( g )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IB1 50 Front Door LH Wire and Cowl Wire (Left Kick Panel)
IK1 52 Front Door RH Wire and Cowl Wire (Right Kick Panel)
: GROUND POINTS
Code See Page Ground Points Location
EB46 (1UZ–FE)
Left FenderEB48 (2JZ–GE)
Left Fender
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I6 52 Cowl Wire
1234
B B B B B B B
A A
A A A AA A A A AA A A A A A A A
B
B B B B
34
X
ORANGE GRAYJ6
ORANGE
J15
(Hint : See Page 7)(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)
I23 J7 J10
R16
34
X
R17
SERVICE HINTS
AUTOMATIC LIGHT CONTROL
10AMPX–B
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
2
40AMAIN
15AECU–IG
120AALT
2 2
1 2B8 2G4
3 1
4 2
1 1
1K1
2 3
1 5
1H2
1H13 1H5 1H6 1H11
A19A9
II214
I 6
IE18
C
C
6 1 8 9
HE
AD
LP
RE
LAY
TAIL
RE
LAY
1 1 1
B–R
G–W
L–O
G–WG–W
G–W
WG
–R
R–B
R–G
R–G
R–G
B–R
G–W L–O
W
WW
HRLY TRLY MPX2G
–W
JUNCTIONCONNECTOR
J14
A2 A15 A3
OFF
TAIL
HEAD
AUTO
LIG
HT
CO
NTR
OL
SW
15 14 13
16
JUNCTIONCONNECTOR
J10
AUTOMATIC LIGHTCONTROL SENSOR
A30
1D61D1 1D7 1F13 1G6
IFII
JUNCTIONCONNECTOR
J17
JUNCTIONCONNECTOR
J 6
COMBINATION SWC14
41 3
A
A
A
A
A
32 12 11
TAIL HEAD AUTO CLTSCLTB GND
R–Y
R–B R
R–G
GR
–R
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
B 6
BODY ECU NO. 2
A
C13COMBINATIONMETER
11
IG
CLTE
MPX1
AW–B
BECU
A W–B W–B
CLTECLTSCLTB
B–R
G–W
L–O
IB16 IB11 IB113 IB15
C9 C3 C2 A1
20AD FR DOOR
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1F2
B15 B14 C12
IB1412
JUNCTIONCONNECTOR
J 7
D22
DRIVER DOOR ECU
BA , D23
DOOR COURTESY SWFRONT LH
D13
L–O
G–W B–R L–B
L–O
G–W B–R L–B
R–G
W–B
W–B
W–B
MPX1 CPUB SIG BDR
CTY CTYE GND
D24, C
B
B
W–B
AUTOMATIC LIGHT CONTROL
When the light control SW is set at AUTO, the automatic light control system automatically turns on or off the taillights andheadlights depending on the brightness around the vehicle.
AUTOMATIC LIGHT CONTROL OPERATIONThe automatic light control sensor converts the intensity of the illumination into frequency and inputs it to the body ECUNo.2. When the light control SW is set at AUTO, the signal is input to TERMINAL AUTO of the body ECU No.2. Throughcommunication control of the body ECU and door ECU etc. , the taillights and headlights are automatically turned on or off.Turn on operationWhen the body ECU No.2 receives the frequency signal from the automatic light control sensor and determines that thebrightness around the vehicle has decreased below a specified level, TERMINAL TRLY and HRLY of the body ECU No.2are controlled through communication control of the body ECU and door ECU etc. As a result, the taillights and headlightslight up as the TAIL relay and HEAD LP relay are turned on.Turn off operationWhen the body ECU No.2 receives the frequency signal from the automatic light control sensor and determines that thebrightness around the vehicle has exceeded a specified level, TERMINAL TRLY and HRLY of the body ECU No.2 arecontrolled through communication control of the body ECU and door ECU etc. As a result, the taillights and headlights go offas the TAIL relay and HEAD LP relay are turned off.Additionally, when the ignition SW is changed from ON to OFF and any door is opened, and then closed with the taillightsand headlights lit (The automatic light control is functioning), the taillights and headlights are turned off in the same manneras the light auto turn off operation.
C14 LIGHT CONTROL SW [COMB. SW]15–16 : Closed with light control SW at TAIL or HEAD position14–16 : Closed with light control SW at HEAD position13–16 : Closed with light control SW at AUTO position
D13 DOOR COURTESY SW FRONT LH1–2 : Closed with driver door open
: PARTS LOCATION
Code See Page Code See Page Code See Page
A30 40 D22 A 42 J10 41
B6 A 40 D23 B 42 J14 41
C13 40 D24 C 42 J17 41
C14 40 J6 41
D13 42 J7 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1D 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
1K 26 Engine Room Main Wire and Driver Side J/B (Left Kick Panel)
2B 28 Engine Room Main Wire and Passenger Side J/B (Right Kick Panel)
2G 29 Cowl Wire and Passenger Side J/B (Right Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IB1 50 Front Door LH Wire and Cowl Wire (Left Kick Panel)
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
II2 52 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
SYSTEM OUTLINE
SERVICE HINTS
: GROUND POINTS
Code See Page Ground Points Location
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I6 52 Cowl Wire
1 X 3 4 2 3 9 X
15 X 19 X X X X
X X
X 3 4
X
5
X
16
1
X
14 15
2 3 X X 9
X 12 X
B B B B B B B
A A
A A A AA A A A AA A A A A A A A C
CC
CC
111
AAAA A A
BLACKB6 (A) C13 C14
GRAY GRAY GRAY GRAY
GRAYJ6
ORANGEJ14
J17
(Hint : See Page 7)(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
A30
D13 D22 (A) D23 (B) D24 (C)
J7 J10
1 2
X
X1 1
BACK–UP LIGHT
10AGAUGE
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1H4
B
B
EA39
8
4
EA16 IC31
5
4
5
4
A A
A
BK
JUNCTIONCONNECTOR
BJ
AD
BF
JUNCTIONCONNECTOR
J17
JUNCTIONCONNECTOR
JUN
CT
ION
CO
NN
EC
TO
R
BACK–UP LIGHT SW[PARK/NEUTRALPOSITION SW]
P 1
JUNCTIONCONNECTOR
BA
BA
CK
–UP
LIG
HT
LH[R
EA
R C
OM
B.
LIG
HT
LH]
BA
CK
–UP
LIG
HT
RH
[RE
AR
CO
MB
. LI
GH
T R
H]
R10
R–L
R–L
R–L
R–L
RR
–B
R–B
R–B
W–B
W–B
W–B
W–B
R–B
R–B R–B
A
A
B 4
J 3 , J 4
J19
J20
J 1
R 8
CB
BC
(2JZ–GE)(1UZ–FE)
(1UZ–FE)(2JZ–GE)
P1 BACK–UP LIGHT SW [PARK/NEUTRAL POSITION SW]4–8 : Closed with shift lever in R position
: PARTS LOCATION
Code See Page Code See Page Code See Page
J137 (1UZ–FE) J4 B 39 (2JZ–GE) P1 39 (2JZ–GE)
J139 (2JZ–GE) J17 41 R8 42
J3 A37 (1UZ–FE) J19 42 R10 43
J3 A39 (2JZ–GE) J20 42
J4 B 37 (1UZ–FE) P1 37 (1UZ–FE)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1H 27 Cowl Wire and Driver Side J/B (Left Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA146 (1UZ–FE)
EA148 (2JZ–GE)
Engine Wire and Cowl Wire (Inside of the ECU Box)
EA346 (1UZ–FE)
Engine Wire and Cowl Wire (Inside of the ECU Box)
EA348 (2JZ–GE)
IC3 50 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
: GROUND POINTS
Code See Page Ground Points Location
BJ 54 Rear Floor Partition Panel LH
BK 54 Quarter Panel LH
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
B4 54 Floor No.2 Wire
CCXXXX X X X X C C
D D
X
48
A A
A A A A
BBXXX B
F F
BB
B B B B A
A A
(1UZ–FE) GRAY (2JZ–GE) BLACKJ3 (A) J4 (B)
J17BLUE
J20GRAY
(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7) (Hint : See Page 7)
J1 J1
J19 P1
SERVICE HINTS
BACK–UP LIGHT
4
5
4
5
R8 R10
MEMO
CELLULAR MOBILE TELEPHONE
15AECU–IG
1H5
15ATEL
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
2F
11B BB BB–R B–RB–R
2E2
I 8
II45
IL26
B–R
B–R
A10 A9
BM
A3B2B7A2A7B11A4A6A1A11
A2 B2 B7 B8 B3
IL114 IL15
A6
A3
G–R
G–R
G–R
B–R
JUNCTIONCONNECTOR
J 7JUNCTIONCONNECTOR
J15
TELEPHONE TRANSCEIVER AND SPEAKER RELAY
BT 8 T 9A
1 2
AA
1
2
B–R
W–B
P V
P V
W–L P
( SH
IELD
ED
)
B
( SH
IELD
ED
)
W
W–B
JUN
CTI
ON
CO
NN
EC
TO
R
J22
TELE
PH
ON
EM
ICR
OP
HO
NE
T 4
L–W
,
CELLULAR PHONE (HAND SET)
, BC18 A , C19
MIC+ MIC–
1645
2461821415173
RR
G–B
B B G W V
R–W G
GR
–W
BR
W W
TELEPHONE TRANSCEIVER
TELEPHONE TRANSCEIVER AND SPEAKER RELAY
BT 8 T 9A
B3 B5 B12
IL115 IL21 IL25
IJ12 IC21 IC25
BA17 BA112
1 2A/C CONTROLASSEMBLY
A13
REAR DOORSPEAKER LH
R14
17
GR
–RG
R–R
GR
–R B YYB
BB Y
Y
B4 B5 B6 B1
B6 B1 B8 A8 B4 A5 A12 B10
C8 D2 D6E5 E13
IL16 IL31 IL39 IL111
IJ31 IJ34 IJ39
L–Y
L–B
L–R L
L–O
L–O
L–O
L–O
BBB
B
Y YY
Y
B–O
B–O
5 3
RADIO ANDPLAYER
R 2TELEPHONE SW[COMB. SW]
C16
(*1)(*2)
( *1)
( *2)
( *2)
( *2)
( *2)
( *2)
( *2)
( *1)
( *2)
( *1)
* 1 : NAKAMICHI* 2 : EXCEPT NAKAMICHI
,
TEL IN
TLMTTLMT RL+ RL–
CELLULAR PHONE (HAND SET)
,
STEREO COMPONENT AMPLIFIER
, BC18 A , C19 DS 9 C , S10 E, S16
10412619252213
9351023181211
L–W
B–WGR
R–W
G–W
BYOR
Y–B B
R–W
R–W
BR
BRL
B Y–B
RL–SP(+) RL–SP(–)SP–CNTTEL(+)TEL(–)
GND AUDIO(+) AUDIO(–)
20
P
P
TELEPHONE TRANSCEIVER SPEAKER RELAY
CELLULAR MOBILE TELEPHONE
T8 (A) TELEPHONE TRANSCEIVER AND SPEAKER RELAY(A) 9–GROUND : Always approx. 12 volts(A)10–GROUND : Approx. 12 volts with ignition SW at ON or ST position(A)11–GROUND : Always continuity
: PARTS LOCATION
Code See Page Code See Page Code See Page
A13 40 J15 41 S10 D 41
C16 40 J22 42 S16 E 43
C18 A 42 R2 41 T4 41
C19 B 42 R14 43 T8 A 43
J7 41 S9 C 41 T9 B 43
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1H 27 Cowl Wire and Driver Side J/B (Left Kick Panel)
2E 28 Floor No.1 Wire and Passenger Side J/B (Right Kick Panel)
2F 28 Cowl Wire and Passenger Side J/B (Right Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IC2 50 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
II4 52 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
IJ152 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IJ352 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IL1
IL2 52 Floor No.1 Wire and Cowl Wire (Right Kick Panel)
IL3
( g )
BA1 54 Rear Door LH Wire and Floor No.2 Wire (Under the Center Pillar LH)
: GROUND POINTS
Code See Page Ground Points Location
BM 54 Quarter Panel RH
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I8 52 Floor No.1 Wire
SERVICE HINTS
3 X X 3 X23
XX6
1238 7 6 5 4
5 1
2
X
8 X X
2
6 X 5 X X X X 13
1 2 2357891012
411
16
543216 7 8 X 101112
X X
X
X 17
B B B B B B B
B
B B B B
A A
A A A A
A13(1UZ–FE) BLACK
C18 (A) C19 (B)
GRAYJ15 J22
(NAKAMICHI)R14
(Except NAKAMICHI) (Except NAKAMICHI) (NAKAMICHI) GREENT4 T8 (A)
T9 (B)
(2JZ–GE) BLACK
(Hint : See Page 7) (Hint : See Page 7)(Hint : See Page 7)
C16 C16
R2J7
S9 (C) S10 (D) S16 (E)
CHARGING
5A A
LT–S
11
1
IA216
EA17
10AGAUGE
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1H4
B
B
EA39
EA42
JUN
CTI
ON
CO
NN
EC
TO
R
J 1
JUNCTIONCONNECTOR
J17
W–L
W–L
B–L
B–L
R–L
R–L
W–L
B–L
R–L
R–L
W–L
B–L
P–L
( *1)
P–L
( *1)
P–L
( *2)
B (*2)C (*1)
B (*2)C (*1)
RL
BA
TTE
RY
120A
ALT
* 2 : 2JZ–GE* 1 : 1UZ–FE
L IG S B
IC REGULATOR
B1 B2 B3 A1
G 1
GENERATOR
BA , G 2
1D4
CHARGE
CPU
A1
A22 B2
F26A26
F24D27
IJ13
IJ110
IFII
1D5
1G61F137
16
A
6
5
A
A
W
W LL
L
W–B
W–B
W–B
W–B
W L–R
28
R–L
E 2
ENGINE CONTROL MODULE
DA , E 5
C12
CO
MB
INA
TIO
N M
ET
ER
BA
, C
13
MPX2
(*1)(*2)
W
MPX2
MPX1
MPX2 MPX1
MPX–
MPX+
( *3)
(* 4)
( *3)
JUNCTIONCONNECTOR
J17
JUNCTIONCONNECTOR
J 6
TILT
AN
DTE
LES
CO
PIC
EC
U
T 5
A/C
CO
NTR
OL
AS
SE
MB
LY
A13
MU
LTI–
DIS
PLA
YM
3
* 3 : W/ LEXUS NAVIGATION SYSTEM* 4 : W/O LEXUS NAVIGATION SYSTEM
1 1
2 2
F, E 7
IE117
G1 (A), G2 (B) GENERATOR(A) 1–GROUND : 13.9–15.1 volts with engine running at 2000 rpm and 25°C (77°F)
13.5–14.3 volts with engine running at 5000 rpm and 115°C (239°F)(B) 3–GROUND : 0–4 volts with ignition SW at ON position and engine not running
: PARTS LOCATION
Code See Page Code See Page Code See Page
A13 40G1 A
36 (1UZ–FE) J6 41
C12 A 40G1 A
38 (2JZ–GE) J17 41
C13 B 40G2 B
36 (1UZ–FE) M3 41
E2 A 38 (2JZ–GE)G2 B
38 (2JZ–GE) T5 41
E5 D 38 (2JZ–GE)J1
37 (1UZ–FE)
E7 F 36 (1UZ–FE)J1
39 (2JZ–GE)
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1D 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA146 (1UZ–FE)
EA148 (2JZ–GE)
EA346 (1UZ–FE) Engine Wire and Cowl Wire (Inside of the ECU Box)
EA348 (2JZ–GE)
g ( )
EA4 46 (1UZ–FE)
IA2 50 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IJ1 52 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
: GROUND POINTS
Code See Page Ground Points Location
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
5 X X
X
X 16
X
22X
X
XX
XX
X
1
A13 C12 (A) C13 (B)
2 X
X
SERVICE HINTS
CHARGING
1
1 2 3
2 X
X 8 X X X X X
6 7 X
X X X X X X X X
24 26X X X X
X X X X
X X X
X
27
X
26
X
CCXXXX X X X X C C A A
A A A A
BBXXX B
BBAAAA A A B B B B
(2JZ–GE) (2JZ–GE) (1UZ–FE)
G1 (A)BLACK (1UZ–FE) GRAY (2JZ–GE) BLACK
J6
J17BLUE GRAY
(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
E2 (A) E5 (D) E7 (F)
G2 (B) J1 J1
M3 T5
MEMO
CIGARETTE LIGHTER AND POWER OUTLET
15ACIG
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1F7
II
I 6
2
A
1
A
1
JUNCTIONCONNECTOR
J17
POWER OUTLETP 5
CIGARETTELIGHTER
C10
P PW
–BW
–BW
–B
W–B
P
B
BB
JUNCTIONCONNECTOR
J12
3
C10 CIGARETTE LIGHTER1–GROUND : Approx. 12 volts with ignition SW at ACC or ON position3–GROUND : Always continuity
P5 POWER OUTLET2–GROUND : Approx. 12 volts with ignition SW at ACC or ON position1–GROUND : Always continuity
: PARTS LOCATION
Code See Page Code See Page Code See Page
C10 40 J17 41
J12 41 P5 41
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1F 26 Cowl Wire and Driver Side J/B (Left Kick Panel)
: GROUND POINTS
Code See Page Ground Points Location
II 50 Right Side of the Cowl Panel
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I6 52 Cowl Wire
1
3
12
B
B B B
AAAA A A
BLACK GRAYJ17 P5
(Hint : See Page 7) (Hint : See Page 7)
C10 J12
SERVICE HINTS
CLOCK
10ADOME
2H12
15ARADIO NO. 2
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1C1
1F11
1C3
3G1
3B1
3B5
3G5
1C6
1F13
A
A
II
IJ218
L–Y
L–Y
LG–B
W–B
W–B
W–B
W–B
61
4 5
11
ACAN
BODY ECUNO. 2
B 6JUNCTIONCONNECTOR
J17
CLOCKC11
LG–B
L–Y
ACC+B+
3
PBEWILL+EARTH
PA
SS
EN
GE
RS
EA
T B
ELT
IJ26
L–R
YT
O C
OM
BIN
ATI
ON
ME
TE
R
3G3
3B3
GR
GR
C11 CLOCK4–GROUND : Always approx. 12 volts (Power for clock)5–GROUND : Approx. 12 volts with ignition SW at ACC or ON position (Power for indication)1–GROUND : Always continuity
: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 40 C11 40 J17 41
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1C 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26 Cowl Wire and Driver Side J/B (Left Kick Panel)
2H 29 Cowl Wire and Passenger Side J/B (Right Kick Panel)
3B 30Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Reinforcement Center)
3G 31Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Reinforcement Center)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IJ2 52 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
: GROUND POINTS
Code See Page Ground Points Location
II 50 Right Side of the Cowl Panel
11 X
X X X X X
1 X 34 5 6 X X
AAAA A A
B6 C11 J17
(Hint : See Page 7)
SERVICE HINTS
COMBINATION METER
10AGAUGE
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1D4
A1A15
B7 A18 B16 B13 B15 B14 B5 B17
IF
IE12IE114IE15IE14IE16IE13IE23IE112
C5 C4 C13 C6 C16 B5
R–L
RP B–L P R G L L O
W–B
W–B
LG–B
LG–B
L–O
LG–R
V–R V
R–G
A
A
A
A
A
JUNCTIONCONNECTOR
J 6
JUNCTIONCONNECTOR
J14
JUN
CTI
ON
CO
NN
EC
TO
R
J10
A20
ABS & TRAC & VSC ECU
CB , A21
C12
COMBINATION METER
BA , C13
HIG
H B
EA
M
RE
AR
LIG
HT
SE
AT
BE
LT
OIL
PR
ES
SU
RE
OIL
LE
VE
L
EC
T S
NO
W
EC
T P
WR
CR
UIS
E
FUE
L
CH
AR
GE
FRO
M H
–LP
RH
FU
SE
FUE
L
WA
TER
CPU
HE
AD
LIG
HT
LEV
ELI
NG
AB
S
VS
C
VS
C O
FF
SLI
P
BR
AK
E
W–R
(*2)
( *1)
B–L
( *1)
TO
HE
AD
LIG
HT
BE
AM
LE
VE
LC
ON
TR
OL
EC
U
TO C
OM
BIN
AT
ION
SW
W–B
( *1)
B
B
JUN
CT
ION
CO
NN
EC
TO
R
J11
WA VSCW WT IND SP1 BRL
* 1 : W/ DAYTIME RUNNING LIGHT* 2 : W/O DAYTIME RUNNING LIGHT
* 3 : 1UZ–FE* 4 : 2JZ–GE
BU
ZZE
R
SP
EE
DO
ME
TE
R
TAC
HO
ME
TER
A/T P R N D M(*3)4(*4)
3 2 L
ODOMETERTRIP METER
WA
SH
ER
B3 B6 B10
OD
O/T
RIP
RE
SE
T
IE116 IE113 IE19
IC112
3
2
IC13
IL37
2
1
IE115
IL319
B4
EB
2
1A
12 5
AA
GR
BR
–YB
R–Y
B–O
Y–R
V–W
GR YG
R–B
W–B
V–W
V–W
V–W
B–O
Y–R
B–O
Y–R
B–O
B–O
C12
COMBINATION METER
BA , C13
FUE
L S
EN
DE
RF1
5
FUE
L S
EN
DE
R( S
UB
)
F17
WA
SH
ER
LE
VE
LW
AR
NIN
G S
W
W 1
NAVIGATIONECU
N 2PPS ECUP 6
JUNCTION CONNECTORJ13
SPD SPD
IL310
CPU
COMBINATION METER
A14
5ASRS–B
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1D3
L–B
B1
IE118
YY
FROM PASSENGERSEAT BELT WARNINGLIGHT [CLOCK]
A2 A3 A22 B8
1D5
1F13
II IF
1G6
IE111 IE210IE17
A16 B12
E6E6D16
EA32
G–B
G–Y
W–B O B
–Y GR
B–Y
B–Y
G–B
GR
–R
W–B
W–B
W–B
W–B
C
A
A
A A
8
C
C12
COMBINATION METER
BA , C13
DO
OR
HE
AD
TAIL
CPU
TUR
N L
H
TUR
N R
H
MA
LFU
NC
TIO
NIN
DIC
ATO
R L
AM
P
FRO
M T
UR
N S
IGN
AL
FLA
SH
ER
( *4)
( *4)
( *4)
IGN
ITE
RI 1
JUN
CT
ION
CO
NN
EC
TO
R
J 1
JUN
CTI
ON
CO
NN
EC
TOR
J17
(* 3)(*4)
JUNCTIONCONNECTOR
J 6
TACH W
TAC
B–Y
(*3)
D25A6
EC ED
E 1
EA410EA49
E3B8
1
F24D27
1
D28F11
(*3)(*4)
E 2
BA
, E
3
E 6
EN
GIN
E C
ON
TRO
LM
OD
ULE
FE
, E
7
,
2
1
L–B
L–B
L–B
R–W
R–W
R–W
BR
BR
BR
L
Y–B
W
L
( *3)
( *3)
( *4)
( *3)
( *4)
( *3)
19
21
MPX1
PKB
MPX1
MPX2MOLMOPS
PA
RK
ING
BR
AK
E S
WP
4
EN
GIN
E O
ILLE
VE
L S
EN
SO
R
E10
OIL
PR
ES
SU
RE
SW
O 2
BO
DY
EC
U N
O. 1
B 5E 5
D,
W
OIL
TE
MP
.
OIL
LE
VE
L
( *7)
( *8)
( *7)
( *8)
* 3 : 1UZ–FE* 4 : 2JZ–GE
* 5 : W/ LEXUS NAVIGATION SYSTEM* 6 : W/O LEXUS NAVIGATION SYSTEM
A4A5A6
W–B W G
5 4 3
RHEOSTATR 7
A13
1H6
1D2
2G4
2B8
10AMPX–B
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
2
G–W
G–W
G–W
C12
COMBINATION METER
BA , C13
A12 B2 B11
LGTO
CE
NTE
R A
IRB
AG
SE
NS
OR
AS
SE
MB
LY
SR
S
CPU
IE117
IJ110
IE18
6
2
16
8
7
WL
W
L–R
W
WW
( *5)
(* 5)
TIL
T A
ND
TE
LES
CO
PIC
EC
U
T 5
MU
LTI–
DIS
PLA
YM
3
A19
B 6
BO
DY
EC
UN
O. 2
A
1B8
1
2
Y–B
W–B
4
BR
AK
E F
LUID
LE
VE
LW
AR
NIN
G S
W
B 1
EB : *9IG : *10
A9
IE213
W–G
W–G
FRO
M IL
LUM
INA
TIO
N
A/C CONTROL ASSEMBLYA13
IJ13
5
LL
L
MPX+ MPX–
MPX2
BLVL
MPX2
MPX1
MPX1
MPX2
W
W
(*6)
(*6)
W ( *5)
* 7 : USA* 8 : CANADA, TAIWAN
1
*10 : W/ DAYTIME RUNNING LIGHT* 9 : W/O DAYTIME RUNNING LIGHT
E RV T
COMBINATION METER
B1 BRAKE FLUID LEVEL WARNING SW1–2 : Closed with float down
P4 PARKING BRAKE SW1–GROUND : Closed with parking brake pedal depressed
O2 OIL PRESSURE SW1–GROUND : Closed with oil pressure below approx. 0.2 kgf/cm2 (2.8 psi, 20 kpa)
E10 ENGINE OIL LEVEL SENSOR1–2 : Closed with float up and engine oil temp. at below approx. 50°C (122°F)
Open with float down and engine oil temp. at above approx. 60°C (140°F)
F15 FUEL SENDER2–3 : Approx. 2.0 Ω at fuel full
Approx. 48.7 Ω at fuel empty
C12 (A), C13 (B) COMBINATION METER(A) 1–GROUND : Approx. 12 volts with ignition SW at ON or ST position(A)22–GROUND : Always continuity(B) 8–GROUND : Always continuity(A)13–GROUND : Always approx. 12 volts(A)14–GROUND : Always approx. 12 volts
: PARTS LOCATION
Code See Page Code See Page Code See Page
A13 40E6 E
36 (1UZ–FE) J14 41
A20 B 40E6 E
38 (2JZ–GE) J17 41
A21 C 40 E7 F 36 (1UZ–FE) M3 41
B136 (1UZ–FE)
E1036 (1UZ–FE) N2 43
B138 (2JZ–GE)
E1038 (2JZ–GE)
O237 (1UZ–FE)
B5 40 F15 42O2
39 (2JZ–GE)
B6 A 40 F17 42 P4 41
C12 A 40 I1 39 (2JZ–GE) P6 41
C13 B 40 J1 39 (2JZ–GE) R7 41
E2 A 38 (2JZ–GE) J6 41 T5 41
E3 B 38 (2JZ–GE) J10 41W1
37 (1UZ–FE)
E5 D36 (1UZ–FE) J11 41
W139 (2JZ–GE)
E5 D38 (2JZ–GE) J13 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1B 26 Cowl Wire and Driver Side J/B (Left Kick Panel)
1D 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
2B 28 Engine Room Main Wire and Passenger Side J/B (Right Kick Panel)
2G 29 Cowl Wire and Passenger Side J/B (Right Kick Panel)
SERVICE HINTS
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA3 48 (2JZ–GE)Engine Wire and Cowl Wire (Inside of the ECU Box)
EA4 46 (1UZ–FE)Engine Wire and Cowl Wire (Inside of the ECU Box)
IC1 50 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
IE150 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IE250 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IL3 52 Floor No.1 Wire and Cowl Wire (Right Kick Panel)
IJ1 52 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
: GROUND POINTS
Code See Page Ground Points Location
EB46 (1UZ–FE)
Left FenderEB48 (2JZ–GE)
Left Fender
EC46 (1UZ–FE) RH Bank of the Cylinder Head
EC48 (2JZ–GE) Front Side of the Intake Manifold
ED46 (1UZ–FE) LH Bank of the Cylinder Head
ED48 (2JZ–GE) Rear Side of the Intake Manifold
IF 50 Left Kick Panel
IG 50 Left Side of the Cowl Panel
II 50 Right Side of the Cowl Panel
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E1 46 (1UZ–FE) Engine Wire E1 48 (2JZ–GE) Engine Wire
COMBINATION METER
1 2
X X
X 19 21
X
22X
X9
XX
XX
18X
65
1615
43
1413
1 2
12
X 3
X X
X X
6
X
5 X X
X
X 16
X X
X
X X
6
X
8
X
X
X
X
X
5
X X X X
X X X X
X X X 28
X
27
4 5 6
X X 13 X
X
16
X
X
X
X
X X
X X
X
16
25
X
X
X
X 19 X X X X
X
X
6
1 2 X 2 3
1 2
X X X X X X 11 X X
24
A13 A20 (B) A21 (C)GRAY
B5 B6 (A) C12 (A)
C13 (B)(2JZ–GE) (2JZ–GE)
(1UZ–FE) (2JZ–GE) (1UZ–FE) (2JZ–GE)
(1UZ–FE) GRAYF15 F17
B1
E2 (A) E3 (B)
E5 (D) E5 (D) E6 (E) E6 (E)
E7 (F) E10
43 5 6 7
1615141213
21 8 X
17 X1110
8
X X
X X X 12 11
X 5 X 3 4 5 X X
XXXC C C
A A
A A A A
2 X
X 8 X X X X X
A A A A AA A A A A A A A
B B B B B B B
A
A A
A
A A
AAAA A A
6 7 X 1 2
BLACK BLACKJ6
ORANGE GRAYJ13
J14 J17BLUE
N2GRAY
P4BLUE
R7
GRAY BLACK
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
I1 J1
J10 J11
M3
O2 P6
T5 W1
CRUISE CONTROL (1UZ–FE)
25AEFI
1
5AIGN
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1G7
15ASTOP
1H8
2 3
1 5
1 1
1 1
IA215 II43
1
2
4
3
E 1
G–W
II11
AB AB
EA29 EA112
B–O W
B–Y
B–Y
B–Y
A
412
E
A
E
E
G–W
D6F14
E16 E8
B–R
B–R
B–R
BB BB
D5A9
EDEE
11 3
A
ED
A
12
A
ED
A
P–B
P–B
P BR
TC E1
+B
E 1 E 1
EA37
ID19 ID18
D23
B9B21B18E9E1E10
3
STOP LIGHTSW
S11
JUNCTIONCONNECTOR
J 7
JUNCTIONCONNECTOR
J 9JUNCTIONCONNECTOR
J 9
CRUISE CONTROL SW[COMB. SW]
C16JUNCTIONCONNECTOR
J11
JUNCTIONCONNECTOR
J 2
ACCELERATOR PEDALPOSITION SENSOR
A10
DATA LINKCONNECTOR 1
D 1
JUN
CTI
ON
CO
NN
EC
TOR
J14
B–R
W–B
B–R
B–R
W–B
BR
BR
BR
R–Y
R–Y
BR
BR
BR
BR
L–W
Y–B
B–L
B–O
B–Y
B–Y
1
2
B–O
BRBR
L–Y
BR
MREL BATT IGSW STI– STP E2 VPA VPA2
EFIRELAY
+B +B1 ME01 TC CCS
B–R
B–R
BR BR BR
4 5
B–R
ENGINE CONTROL MODULE
BA C D E F
BR
JUN
CT
ION
CO
NN
EC
TO
R
BA
E 2 , E 3 , E 4 , E 5 , E 6 , E 7
J 3
, J
4
15AETCS
1
E7
IA26L–
YV
–Y
2
1
+BM
CRUISE
RES/ACC
SET/COAST
CANCEL
BD
BD
J 4
JUNCTIONCONNECTOR
BA
AJUN
CT
ION
CO
NN
EC
TO
R
J 5
W–B
E2
VPA1 VPA2 VC
4
1 2 3 1 2 4 3
E 2
B2 B13 B20 A7 A8 B8 C12A30
10AGAUGE
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1H4 1D4
EA39
9
4
B
C
B
C
BR
L–Y
L–Y
L–Y
R–B
L–B
( SH
IELD
ED
)
R G Y–R
G–R
R–L
R–L
R–L
R–L
THR
OTT
LE P
OS
ITIO
N S
EN
SO
RT
3
THROTTLE CONTROL MOTORT 2
JUNCTIONCONNECTOR
J17
JUNCTIONCONNECTOR
J 1
A/T INDICATORLIGHT SW[PARK/NEUTRAL POSITION SW]
P 1
VC VTA VTA2 GE01 M– M+ CL– CL+
B17 A21 A31 B1 D26 F4 F1
E 1
E 4EA33
EBEC
EN
GIN
E C
ON
TRO
L M
OD
ULE
BA
Y–B
Y–B
W–B
W–B
W–B
W–B
W–BBR
W–B
W–B
W–B
W–BBR
BRBR
E1 E01 E02 E03 EC EOM
Y–B
C
ED
F
D E 5
, E
6
E 2
, E
3
, E
7
, E
4
* 2 : W/O LEXUS NAVIGATION SYSTEM* 1 : W/ LEXUS NAVIGATION SYSTEM
R–L
F24
MPX2
IJ13
5
16
A/C CONTROLASSEMBLY
A13
IJ1
10
M 3MULTI–DISPLAY
WW
L–R
W(*2)
LL
(* 1)
(*1)
2
8
MPX+
MPX–
MPX1
MPX2
J 3
JUNCTIONCONNECTOR
A
AE
AE
,
CRUISE CONTROL (1UZ–FE)
A1
B2 A22 B8
6
7
TIL
T A
ND
TE
LES
CO
PIC
EC
U
T 5
IE117 1D5
1F13 1G6
II
A
A
IF
IE111
A
JUN
CTI
ON
CO
NN
EC
TO
R
J17
A
W
W–B
W–B
W–B
W–B
LW W–B O
R–L
CRUISE
CPU
JUNCTIONCONNECTOR
J 6
C12
COMBINATION METER
BA , C13
MPX2
MPX1
The cruise control system is a constant vehicle speed controller in which control of the switch on the instrument panel makesit possible to automatically adjust the opening of the engine throttle valve without depressing of the accel. pedal.
1. SET OPERATIONWhen the cruise control main SW is turned on, the system starts preparations necessary for the cruise control and turns onthe indicator light in the combination meter.
2. SET SPEED CONTROLWhen the SET/COAST SW is operated with the cruise control main SW turned on during travelling, the constant vehiclespeed is controlled.
3. COAST CONTROLWhen the SET/COAST SW is kept turned on during cruise control travelling, the engine control module controls the throttlevalve to decelerate the vehicle. Every time the SET/COAST SW is turned on instantaneously, the vehicle speed isdecelerated approximately 1.5 km/h.
4. ACCEL CONTROLWhen the RES/ACC SW is kept turned on during cruise control travelling, the engine control module controls the throttlevalve to accelerate the vehicle. Every time the RES/ACC SW is turned on instantaneously, the vehicle speed is acceleratedapproximately 1.5 km/h.
5. RESUME CONTROLWhen the vehicle speed is within the low speed limit (Approximately 40 km/h, 25 mph) if the cruise control is cancelled, useof the RES/ACC SW accelerates the vehicle to the speed level used before canceling the cruise control.
6. MANUAL CANCEL MECHANISMIf any of the following signals is input during cruise control travelling, the cruise control is cancelled.∗ The stop light SW is turned on.∗ The CANCEL SW is turned on.∗ The cruise control main SW is turned off.∗ The VSC is activated.
7. AUTO CANCEL FUNCTIONIf any of the following conditions is encountered, the cruise control is automatically cancelled.∗ The stop light SW wiring is faulty or short–circuited.∗ The vehicle speed signal is faulty.∗ The electronically controlled throttle malfunctions.
8. OVERDRIVE CONTROL FUNCTIONThe overdrive control may be cancelled if the vehicle travels on the slope during cruise control travelling. After the overdrivecontrol has been cancelled, if the vehicle speed exceeds the overdrive return speed (The set speed is 2 km/h, 1.2 mph) andit is decided that the slope is finished, the vehicle returns to the overdrive control mode again.
E2 (A), E3 (B), E5 (D), E6 (E), E7 (F) ENGINE CONTROL MODULE(E) 9–GROUND : Approx. 12 volts with ignition SW at ON or ST position(E) 1–GROUND : Always approx. 12 volts(A) 9, (A) 21, (A) 31, (B) 1, (B) 17, (D) 26, (F) 4–GROUND : Always continuity(D) 6–GROUND : Approx. 12 volts with stop light SW at on(D)23–GROUND : Continuity with cruise control main SW at on
Approx. 1540 Ω with CANSEL SW on in cruise control SWApprox. 240 Ω with RES/ACC SW on in cruise control SWApprox. 630 Ω with SET/COAST SW on in cruise control SW
C16 CRUISE CONTROL SW [COMB. SW]5–4 : Approx. 1540 Ω with CANSEL SW on
Approx. 240 Ω with RES/ACC SW onApprox. 630 Ω with SET/COAST SW on
SYSTEM OUTLINE
SERVICE HINTS
CRUISE CONTROL (1UZ–FE)
: PARTS LOCATION
Code See Page Code See Page Code See Page
A10 36 (1UZ–FE) E6 E 36 (1UZ–FE) J11 41
A13 40 E7 F 36 (1UZ–FE) J14 41
C12 A 40 J1 37 (1UZ–FE) J17 41
C13 B 40 J2 37 (1UZ–FE) M3 41
C16 40 J3 A 37 (1UZ–FE) P1 37 (1UZ–FE)
D1 36 (1UZ–FE) J4 B 37 (1UZ–FE) S11 41
E2 A 36 (1UZ–FE) J5 37 (1UZ–FE) T2 37 (1UZ–FE)
E3 B 36 (1UZ–FE) J6 41 T3 37 (1UZ–FE)
E4 C 36 (1UZ–FE) J7 41 T5 41
E5 D 36 (1UZ–FE) J9 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1D 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA1
EA2 46 (1UZ–FE) Engine Wire and Cowl Wire (Inside of the ECU Box)
EA3
( ) g ( )
IA2 50 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
ID1 50 Cowl Wire and Cowl Wire (Left Side of the Instrument Panel Reinforcement)
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
II152 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
II452 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
IJ1 52 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
: GROUND POINTS
Code See Page Ground Points Location
EB 46 (1UZ–FE) Left Fender
EC 46 (1UZ–FE) RH Bank of the Cylinder Head
ED 46 (1UZ–FE) LH Bank of the Cylinder Head
EE 46 (1UZ–FE) Under the ABS & TRAC & VSC Actuator
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E146 (1UZ FE) Engine Wire
E4 46 (1UZ–FE) Cowl Wire
E246 (1UZ–FE) Engine Wire
1 2 3 4
4 5 X X 3 X X
X X X X 11
12 X X X X X
X
X
X
5 X X
X
X 16
X
22X
X
XX
XX
X
1
21
31
30
X
7 8 9 1
138
2017
2
9
18 21
12
X
X 5 6 X
X X
X
2623
X
X
1 X 7
8 9 10 X X
16 X X
X
1 4 X X X X X X X X
14
24
A13 C12 (A)
C13 (B)
E2 (A)
BLACK
BLACK BLACK
E3 (B) E4 (C)
E5 (D) E6 (E) E7 (F)
B B
D D
A A A A AA A A A A A A A
CCXXXX X X X X C C
B B
E E
GRAY ORANGEJ3 (A) J4 (B)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7) (Hint : See Page 7)
A10
C16 D1
J1 J2
2 8 X
X
CRUISE CONTROL (1UZ–FE)
A A A
A A A
EE
EE
EE
ED
DD
D
1
3
2
4
1 23 4
1 2
3 4
A A A
A A A
A A
A A A A
BBAAAA A A B B B B
2 X
X 8 X X X X X
6 7 X
EE
EE
EE
E
X
4 9
AAAAAA A A A A A A
J6GRAY
J9
GRAYJ14 J17
BLUE GRAY BLUE GRAY
GRAY GRAY
BLUE
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7) (Hint : See Page 7)(Hint : See Page 7)
J5 J7
J11
M3 P1 S11 T2
T3 T5
MEMO
CRUISE CONTROL (2JZ–GE)
25AEFI
1
5AIGN
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1G7
15ASTOP
1H8
2 3
1 5
1 1
1 1
IA215 II43
1
2
4
3
E 2
G–W
II11
AB AB
EA29 EA112
B–O W
B–Y
B–Y
B–Y
A
412
E
A
E
E
G–W
D6D11
E16 E8
B–R
B–R
B–R
BB BB
D5A9
EDEE
11 3
A
ED
A
12
A
ED
A
P–B
P–B
P BR
TC E1
+B
E 1 E 1
EA37
ID19 ID18
D23
B16B15B18E9E1E10
3
STOP LIGHTSW
S11
JUNCTIONCONNECTOR
J 7
JUNCTIONCONNECTOR
J 9JUNCTIONCONNECTOR
J 9
CRUISE CONTROL SW[COMB. SW]
C16JUNCTIONCONNECTOR
J11
JUNCTIONCONNECTOR
J 2
ACCELERATOR PEDALPOSITION SENSOR
A10
DATA LINKCONNECTOR 1
D 1
JUN
CTI
ON
CO
NN
EC
TOR
J14
B–R
W–B
B–R
B–R
W–B
BR
BR
BR
R–Y
R–Y
BR
BR
BR
BR L
L–R
B–L
B–O
B–Y
B–Y
1
2
B–O
BRBR
L–Y
BR
MREL BATT IGSW ST1– STP E2 VPA VPA2
EFI
RE
LAY
+B B2 ME01 TC CCS
B–R
B–R
BR BR BR
4 5
B–R
ENGINE CONTROL MODULE
JUN
CT
ION
CO
NN
EC
TO
R
BR
BE 2 A , E 3 D, E 5 E, E 6 F, E 7
BJ
3A
, J
4
15AETCS
1
IA26
E7
BM
L–Y
V–Y
1
2
CRUISE
RES/ACC
SET/COAST
CANCEL
BD
BD
J 4
JUNCTIONCONNECTOR
BA
AJUN
CT
ION
CO
NN
EC
TO
R
J 5
W–B
VPA1 VPA2 VC
E2
4
1 2 3 1 2 4 3
E 2
B2 B23 B24 A7 A8 A19 A20A30
10AGAUGE
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1H4 1D4
EA39
9
4
B
B
B
B
BR
L–Y
L–Y
L–Y
Y–G
Y–R
( SH
IELD
ED
)
B W Y–R
G–R
R–L
R–L
R–L
R–L
THR
OTT
LE P
OS
ITIO
N S
EN
SO
RT
3
THROTTLE CONTROL MOTORT 2
JUNCTIONCONNECTOR
J17
JUNCTIONCONNECTOR
J 1
A/T INDICATORLIGHT SW[PARK/NEUTRAL POSITION SW]
P 1
VC VTA VTA2 GE01 M– M+ CL– CL+
B17 A21 A31 B1 E22 F9 D17
E 1
E 4EA33
EBEC
EN
GIN
E C
ON
TR
OL
MO
DU
LE
Y–B
Y–B
W–B
W–B
W–B
W–B
W–BBR
W–B
W–B
W–B
W–BBR
BRBR
E1 E01 E02 E03 EC EOM
Y–B
D
D27
MPX2
IJ13
5
16
A/C CONTROLASSEMBLY
A13
IJ1
10
M 3MULTI–DISPLAY
WW
L–R
W(*2)
LL
(* 1)
(*1)
2
8
* 1 : W/ LEXUS NAVIGATION SYSTEM* 2 : W/O LEXUS NAVIGATION SYSTEM
R–L
BE
2A
, E
3
FE
6E
, E
7
E 5
, D
MPX+
MPX–
MPX1
MPX2
J 3
JUNCTIONCONNECTOR
A
AE
AE
,
CRUISE CONTROL (2JZ–GE)
A1
B2 A22 B8
6
7
TIL
T A
ND
TE
LES
CO
PIC
EC
U
T 5
IE117 1D5
1F13 1G6
II
A
A
IF
IE111
A
JUN
CTI
ON
CO
NN
EC
TO
R
J17
A
W
W–B
W–B
W–B
W–B
LW W–B O
R–L
CRUISE
CPU
JUNCTIONCONNECTOR
J 6
C12
COMBINATION METER
BA , C13
MPX2
MPX1
The cruise control system is a constant vehicle speed controller in which control of the switch on the instrument panel makesit possible to automatically adjust the opening of the engine throttle valve without depressing of the accel. pedal.
1. SET OPERATIONWhen the cruise control main SW is turned on, the system starts preparations necessary for the cruise control and turns onthe indicator light in the combination meter.
2. SET SPEED CONTROLWhen the SET/COAST SW is operated with the cruise control main SW turned on during travelling, the constant vehiclespeed is controlled.
3. COAST CONTROLWhen the SET/COAST SW is kept turned on during cruise control travelling, the engine control module controls the throttlevalve to decelerate the vehicle. Every time the SET/COAST SW is turned on instantaneously, the vehicle speed isdecelerated approximately 1.5 km/h.
4. ACCEL CONTROLWhen the RES/ACC SW is kept turned on during cruise control travelling, the engine control module controls the throttlevalve to accelerate the vehicle. Every time the RES/ACC SW is turned on instantaneously, the vehicle speed is acceleratedapproximately 1.5 km/h.
5. RESUME CONTROLWhen the vehicle speed is within the low speed limit (Approximately 40 km/h, 25 mph) if the cruise control is cancelled, useof the RES/ACC SW accelerates the vehicle to the speed level used before canceling the cruise control.
6. MANUAL CANCEL MECHANISMIf any of the following signals is input during cruise control travelling, the cruise control is cancelled.∗ The stop light SW is turned on.∗ The CANCEL SW is turned on.∗ The cruise control main SW is turned off.∗ The VSC is activated.
7. AUTO CANCEL FUNCTIONIf any of the following conditions is encountered, the cruise control is automatically cancelled.∗ The stop light SW wiring is faulty or short–circuited.∗ The vehicle speed signal is faulty.∗ The electronically controlled throttle malfunctions.
8. OVERDRIVE CONTROL FUNCTIONThe overdrive control may be cancelled if the vehicle travels on the slope during cruise control travelling. After the overdrivecontrol has been cancelled, if the vehicle speed exceeds the overdrive return speed (The set speed is 2 km/h, 1.2 mph) andit is decided that the slope is finished, the vehicle returns to the overdrive control mode again.
E2 (A), E3 (B), E5 (D), E6 (E), E7 (F) ENGINE CONTROL MODULE(E) 9–GROUND : Approx. 12 volts with ignition SW at ON or ST position(E) 1–GROUND : Always approx. 12 volts(A) 9, (A) 21, (A) 31, (B) 1, (B) 17, (E) 22, (F) 9–GROUND : Always continuity(D) 6–GROUND : Approx. 12 volts with stop light SW at on(D)23–GROUND : Continuity with cruise control main SW at on
Approx. 1540 Ω with CANSEL SW on in cruise control SWApprox. 240 Ω with RES/ACC SW on in cruise control SWApprox. 630 Ω with SET/COAST SW on in cruise control SW
C16 CRUISE CONTROL SW [COMB. SW]5–4 : Approx. 1540 Ω with CANSEL SW on
Approx. 240 Ω with RES/ACC SW onApprox. 630 Ω with SET/COAST SW on
SYSTEM OUTLINE
SERVICE HINTS
CRUISE CONTROL (2JZ–GE)
: PARTS LOCATION
Code See Page Code See Page Code See Page
A10 38 (2JZ–GE) E7 F 38 (2JZ–GE) J14 41
A13 40 J1 39 (2JZ–GE) J17 41
C12 A 40 J2 39 (2JZ–GE) M3 41
C13 B 40 J3 A 39 (2JZ–GE) P1 39 (2JZ–GE)
C16 40 J4 B 39 (2JZ–GE) S11 41
D1 38 (2JZ–GE) J5 39 (2JZ–GE) T2 39 (2JZ–GE)
E2 A 38 (2JZ–GE) J6 41 T3 39 (2JZ–GE)
E3 B 38 (2JZ–GE) J7 41 T5 41
E5 D 38 (2JZ–GE) J9 41
E6 E 38 (2JZ–GE) J11 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1D 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA1
EA2 48 (2JZ–GE) Engine Wire and Cowl Wire (Inside of the ECU Box)
EA3
( ) g ( )
IA2 50 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
ID1 50 Cowl Wire and Cowl Wire (Left Side of the Instrument Panel Reinforcement)
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
II152 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
II452 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
IJ1 52 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
: GROUND POINTS
Code See Page Ground Points Location
EB 48 (2JZ–GE) Left Fender
EC 48 (2JZ–GE) Front Side of the Intake Manifold
ED 48 (2JZ–GE) Rear Side of the Intake Manifold
EE 48 (2JZ–GE) Under the ABS & TRAC & VSC Actuator
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E148 (2JZ GE) Engine Wire
E4 48 (2JZ–GE) Cowl Wire
E248 (2JZ–GE) Engine Wire
1 2 3 4
X X 4 5
21X
31
19
20
30
X
7 8 9 1
16
2417
2
X
18
15
23
X X X 5 6 X
X X X X
X X X
17
X 23
11
27
1 X X 7
8 9 10 X
16 X X 22
X
5 X X
X
X 16
X
22X
X
XX
XX
X
1
X X 3 X
X X X X 11
12 X X X X X
X
X
A A A A AA A A A A A A A
BBXXX BX X X X X X X X 9
X X
X X X X X X
BLACKA13 C12 (A)
C13 (B)BLACK BLACK
E2 (A) E3 (B) E5 (D)
E6 (E) E7 (F)BLACK ORANGE
(Hint : See Page 7)
(Hint : See Page 7)
B B
E E
A A
A A A A B B
D D
AAAAAA A A A A A A
J3 (A) J4 (B) J6BLUE
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
A10
D1C16
J1 J2
J5
2 8 X
X
CRUISE CONTROL (2JZ–GE)
2 X
X 8 X X X X X
1
3
2
4
1 23 4
1 2 3 4
BBAAAA A A B B B B
A A A
A A A
EE
EE
EE
E
A A A
A A A
EE
EE
EE
XX
ED
X
DD
D
X
4 9
6 7 X
GRAY
J14 J17BLUE
BLUE GRAY BLACK
GRAYJ9
GRAY
GRAY
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
J7 J11
M3
P1 S11 T2 T3
T5
MEMO
ELECTRIC TENSION REDUCER
15AECU–IG
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1E2 1H5
B
B
B
B
A
A
2F11
2E2
2
1
2
1
BC19 BD19
4
2
4
2
B
B
A
A
BLBJ
BD112BC112
B–R
B–R
B–R
B–R
B–R
B–R
W–G
W–G
W–G
W–G
W–B
W–B
W–B
W–B
W–B
W–B
JUNCTIONCONNECTOR
J 7
JUNCTIONCONNECTOR
J15JUNCTIONCONNECTOR
J 8
TENSION REDUCERSOLENOID LH
T10TENSION REDUCERSOLENOID RH
T11
BUCKLE SW RHB 8
BUCKLE SW LHB 7
JUNCTIONCONNECTOR
J23JUNCTIONCONNECTOR
J24
B7 BUCKLE SW LH1–3 : Closed with driver seat belt in use
B8 BUCKLE SW RH1–3 : Closed with front passenger seat belt in use
T10, T11 TENSION REDUCER SOLENOID LH, RH1–GROUND : Approx. 12 volts with ignition SW at ON position
: PARTS LOCATION
Code See Page Code See Page Code See Page
B7 44 J8 41 J24 44
B8 44 J15 41 T10 43
J7 41 J23 44 T11 43
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1E 26 Floor No.2 Wire and Driver Side J/B (Left Kick Panel)
1H 27 Cowl Wire and Driver Side J/B (Left Kick Panel)
2E 28 Floor No.1 Wire and Passenger Side J/B (Right Kick Panel)
2F 28 Cowl Wire and Passenger Side J/B (Right Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
BC1 56 Floor No.2 Wire and Front Seat LH Wire (Under the Driver’s Seat)
BD1 56 Floor No.1 Wire and Front Seat RH Wire (Under the Front Passenger’s Seat)
: GROUND POINTS
Code See Page Ground Points Location
BJ 54 Rear Floor Partition Panel LH
BL 54 Rear Floor Partition Panel RH
B B B B B B B
A A A A B
B B B B
AAAA A A
BB
B B B B1 2 1 2
24 X
B8B7GRAY BLACK
J15
J23 J24 T10 T11
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7) (Hint : See Page 7)
J7 J8
24 X
SERVICE HINTS
ELECTRONICALLY CONTROLLED TRANSMISSION
5ASTARTER
1F1
25AEFI
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
EA35
P
N
6
5
EA34
2 3
1 5
1 1
1 1
EE
II11
E10
IA215 II43
E1 C4
2
1
C10
O/D
DIR
EC
T C
LUT
CH
SP
EE
D S
EN
SO
R
O 1
AC AC
BA
D17 E16 E8
BB BB
AB AB
EA29
PA
RK
/NE
UT
RA
LP
OS
ITIO
N S
W
P 1
JUN
CTI
ON
CO
NN
EC
TOR
J11
ENGINE CONTROL MODULE
JUN
CTI
ON
CO
NN
EC
TOR
JUN
CTI
ON
CO
NN
EC
TOR
A
A
STA +B +B1
BR
B–R
B–R
B–Y
MREL BATT NCO–NCO+
B–L
B–L
B–Y
B–Y
B–Y
B–R
W–B
BB
B
B–RB
B–R
B–R
B–R
B–R
B
B–Y
B–Y R G
B–Y
B–Y
BR
BR
B–R
W–B
EFIRELAY
TO S
TA
RTE
RR
ELA
Y
,
2
1
BE 2 A , E 3
EE 5 D , E 6
C, E 4
F, E 7
BJ
3A
, J
4
A
A
JUN
CTI
ON
CO
NN
EC
TOR
J 5
W–B
BJ
3A
, J
4
E9
IGSW
5AIGN
FROM POWER SOURCE SYSTEM(SEE PAGE 60)
1G7
E
E
B–O
B–O
JUN
CTI
ON
CO
NN
EC
TOR
J14
AND A/T INDICATOR (1UZ–FE)
C17 C9 C15 C8 C14 C7 C13 C1 C2 C3 C6
ENGINE CONTROL MODULE
B14
1
2
E 1 E 1
B18
E 1
B21 B9
4
3
E 2
B2 B13 B20 D5
EA112
D
1121412
7
312
1 2 8 3 49 10 6 12 5 11
D
DATA LINKCONNECTOR 1
D 1
JUNCTIONCONNECTOR
J 9
ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOIDE 1
EN
GIN
E C
OO
LAN
TT
EM
P.
SE
NS
OR
E 8
AC
CE
LER
ATO
R P
ED
AL
PO
SIT
ION
SE
NS
OR
A10
TH
RO
TTLE
PO
SIT
ION
SE
NS
OR
T 3
BR
BR
B–R
BR BR BR BR
L–Y
THW E2 VPA VPA2 VC VTA VTA2 TC
OIL SLT+ SLT– SLN+ SLN– SLU+ SLU– S1 S2 S3 S4
G–R
G–B
R–B P L–B
G–W L–R L
G–Y
Y–G Y
BR
L–Y
Y–B
L–W
L–W
Y–B
B–R
BR
BR
BR
BR
BR
B–R BR
PP
–BP
–B
L–Y
R–B
L–B
L–Y
R–B
L–B
TC
+B E1
, BE 2 A , E 3
EE 5 D , E 6
C, E 4
F, E 7
O G GR R L LG BR W B Y V
O
A A
JUNCTIONCONNECTOR
J 2
15ASTOP
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1H8
1
2
D6
A
A
WG
–WG
–W
STP
STO
P L
IGH
T S
WS
11JU
NC
TIO
NC
ON
NE
CTO
R
J 7
VPA1 VPA2 VC
E2 43
ELECTRONICALLY CONTROLLED TRANSMISSION
ED
E 1
B17
EC
A31A21 B1
EB
E 4
F4D26
BR
W–B
W–B
W–B
BR
W–B
W–B
W–B
BR BR
E1 E01 E02 E03 EC EOM
ENGINE CONTROL MODULE
PL RL NL DL 2L LL
7 8 10 9 2 3
4
EA22 EA16 EA47 EA33 EA43 EA48
D15 D2 D20 F1 D4 D3 F16 F25 F24
C5 C11 F2 F15
2
1 ID16 ID17
3 9 2
B
12
B
C C R–L
L
W
SFTDSFTUSP2–SP2+
R–L
L–Y
R–G
L–Y
R–G
R–L
L–Y
G–B
G–B
R–Y
Y–G
G–BGY–B
G–RR
R–W
R–W R–B
R–W R–B
G–R
Y–B
Y–B
G
G–B
MPX1
MPX24L23DNRP
L
B
A/T INDICATOR LIGHT SW[PARK/NEUTRAL POSITION SW]
SHIFT LOCK CONTROL ECU
JUNCTION CONNECTOR
JUN
CTI
ON
CO
NN
EC
TOR
J 1
S 4
P 1
J 9
A/T SHIFT MAIN SW[COMB. SW]
VE
HIC
LE S
PE
ED
SE
NS
OR
( ELE
CTR
ON
ICA
LLY
CO
NTR
OLL
ED
TR
AN
SM
ISS
ION
)
V 1
C16
EE 5 D , E 6
BE 2 A , E 3
F, E 7
C, E 4
SFTU SFTD
AA AD
ADAA
5
Y–B
AE
AE
BE
F11
Y–B
J 3
JUNCTIONCONNECTOR
BA , J 4
J 3
JUN
CT
ION
CO
NN
EC
TOR
A
,
NSSD NSSL ATL AT4
AND A/T INDICATOR (1UZ–FE)
EA39
IJ13
A23 A24
IJ110
16
8
6
7
2
5
7 1
B B
L
W–B
R–L
W
L
R–L
PWR SNOW
R–L R–L
L
L–R
W
W( *
2)
WL
W–B
G–W
G–R
L
3
( *1)
( *1)
PW
R
SN
OW
JUNCTIONCONNECTOR
B 5
BODY ECU NO. 1
A
ELE
CTR
ON
ICA
LLY
CO
NT
RO
LLE
DTR
AN
SM
ISS
ION
PA
TTE
RN
SE
LEC
T S
W
MULTI–DISPLAY
A/C CONTROLASSEMBLY
M 3
A13
J17
E12
TILT ANDTELESCOPIC ECU
T 5
* 1 : W/ LEXUS NAVIGATION SYSTEM* 2 : W/O LEXUS NAVIGATION SYSTEM
MPX+
MPX–
MPX1
MPX2
MPX1
MPX2
MPX1
A19
W
ELECTRONICALLY CONTROLLED TRANSMISSION
10AGAUGE
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1D41H4
A1
II IF
B8A22B2
IE111IE117
1D5
1F13 1G6
R–L
L
W–B
W–B
R–L
A
AA
AA
OW
–B
W–B
W
W–B
W–B
L
W–B
R–L
C12
COMBINATION METER
BA , C13
EC
T S
NO
W
EC
T P
WR
L 2 3 M D N R
A/T
P
JUNCTIONCONNECTOR
JUNCTIONCONNECTOR
J17
J 6
CPU
AND A/T INDICATOR (1UZ–FE)
Previous automatic transmissions have selected each gear shift using mechanically controlled throttle hydraulic pressure,governor hydraulic pressure and lock–up hydraulic pressure. The electronically controlled transmission, however, electricallycontrols the line pressure, throttle pressure, lock–up pressure and accumulator pressure etc. through the solenoid valve. Theelectronically controlled transmission is a system which precisely controls gear shift timing and lock–up timing in response tothe vehicle’s driving conditions and the engine condition detected by various sensors. It makes smooth driving possible byshift selection for each gear which is the most appropriate to the driving conditions at that time, and by preventing downing,squat and gear shift shock when starting off.
1. GEAR SHIFT OPERATIONWhen driving, the engine warm up condition is input as a signal to TERMINAL THW of the engine control module from theengine coolant temp. sensor and the vehicle speed signal from vehicle speed sensor is input to TERMINAL SP2+ of theengine control module. At the same time, the throttle valve opening signal from the throttle position sensor is input toTERMINALS VTA and VTA2 of the engine control module as throttle angle signal.Based on these signals, the engine control module selects the best shift position for the driving conditions and sends currentto the electronically controlled transmission solenoid.
2. LOCK–UP OPERATIONWhen the engine control module decides based on each signal that the lock–up condition has been met, the current flowsthrough TERMINAL SLU+ of the engine control module to TERMINAL 4 of the electronically controlled transmission solenoidto TERMINAL 10 to TERMINAL SLU– of the engine control module to GROUND.
3. STOP LIGHT SW CIRCUITIf the brake pedal is depressed (Stop light SW on) when driving in lock–up condition, a signal is input to TERMINAL STP ofthe engine control module. The engine control module operates and cuts the current to the solenoid to release lock–up.
4. ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SELECT SW CIRCUITWhen the electronically controlled transmission pattern select SW is switched to PWR, a signal is input to TERMINAL PWRof the body ECU No.1, and control signals are distributed to the engine control module through communication control of thebody ECU. This enables shift–up and shift–down at a higher speed range.
5. E–SHIFT SYSTEMWhen the shift lever is set to the M position, the shift range can be switched with the UP or DOWN switch on the steering.(This limits to the maximum gear step and enables automatic shift–up and shift–down within the allowable range.)
E1 ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOID2–8 : 5.1–5.5 Ω3–9 : 3.5–3.9 Ω
4–10 : 5.1–5.5 Ω5, 6, 11, 12–GROUND : 11–15 Ω
E12 ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SELECT SW7–3 : Closed with select SW at PWR position1–3 : Only closed with select SW at SNOW position
V1 VEHICLE SPEED SENSOR (ELECTRONICALLY CONTROLLED TRANSMISSION)1–2 : 560–680 Ω
O1 O/D DIRECT CLUTCH SPEED SENSOR1–2 : 560–680 Ω
E3 (B), E5 (D), E6 (E) ENGINE CONTROL MODULEBATT–E1 : Always approx. 12 volts
+B–E1 : Approx. 12 volts with ignition SW ON or ST position+B1–E1 : Approx. 12 volts with ignition SW ON or ST position
MREL–E1 : Approx. 12 volts with ignition SW ON or ST positionSTA–E1 : Approx. 12 volts with ignition SW ST position and shift lever other than P or N position
P1 A/T INDICATOR LIGHT SW [PARK / NEUTRAL POSITION SW]4–7 : Closed with shift lever in P position4–8 : Closed with shift lever in R position
4–10 : Closed with shift lever in N position4–9 : Closed with shift lever in D position or M position4–2 : Closed with shift lever in 3 position4–3 : Closed with shift lever in 2 position or L position
SYSTEM OUTLINE
SERVICE HINTS
ELECTRONICALLY CONTROLLED TRANSMISSION
: PARTS LOCATION
Code See Page Code See Page Code See Page
A10 36 (1UZ–FE) E6 E 36 (1UZ–FE) J11 41
A13 40 E7 F 36 (1UZ–FE) J14 41
B5 A 40 E8 36 (1UZ–FE) J17 41
C12 A 40 E12 40 M3 41
C13 B 40 J1 37 (1UZ–FE) O1 37 (1UZ–FE)
C16 40 J2 37 (1UZ–FE) P1 37 (1UZ–FE)
D1 36 (1UZ–FE) J3 A 37 (1UZ–FE) S4 41
E1 36 (1UZ–FE) J4 B 37 (1UZ–FE) S11 41
E2 A 36 (1UZ–FE) J5 37 (1UZ–FE) T3 37 (1UZ–FE)
E3 B 36 (1UZ–FE) J6 41 T5 41
E4 C 36 (1UZ–FE) J7 41 V1 37 (1UZ–FE)
E5 D 36 (1UZ–FE) J9 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1D 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA1
EA246 (1UZ FE) Engine Wire and Cowl Wire (Inside of the ECU Box)
EA346 (1UZ–FE) Engine Wire and Cowl Wire (Inside of the ECU Box)
EA4
IA2 50 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
ID1 50 Cowl Wire and Cowl Wire (Left Side of the Instrument Panel Reinforcement)
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
II152 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
II452 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
IJ1 52 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
: GROUND POINTS
Code See Page Ground Points Location
EB 46 (1UZ–FE) Left Fender
EC 46 (1UZ–FE) RH Bank of the Cylinder Head
ED 46 (1UZ–FE) LH Bank of the Cylinder Head
EE 46 (1UZ–FE) Under the ABS & TRAC & VSC Actuator
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E146 (1UZ FE) Engine Wire
E4 46 (1UZ–FE) Cowl Wire
E246 (1UZ–FE) Engine Wire
AND A/T INDICATOR (1UZ–FE)
1 2 3 4
1 2
1 2 3 4 5 67 8 9 11 1210
1
1413
2017
2
9
18 21
1 2 3 4 5 6
7 8 9 10 11
13 14 15 X 17
5 X X
X
X 16
X
22X
X
XX
XX
X
1
X X 3 X X
X X X X 11
12 X X X X X
X
X
X
21
31
X
X X
X 19 2324
1 X
8 9 10 X X
16 X X
X
X 3 4 5 6 X
X X 15
20 X
17
26
2
X
X
BLACKA13 B5 (A)
C12 (A) C13 (B)BLACK
BLACK GRAYE2 (A)
E3 (B) E4 (C) E5 (D) E6 (E)
1 2 4 X X X X X X 11 X X
15 16 24 25
CCXXXX X X X X C C
1 3 X X 7
21 21
E7 (F)GRAYBLACKBLACK
(Hint : See Page 7)
A10
C16
D1 E1
E8 E12 J1
2 8 X
X
ELECTRONICALLY CONTROLLED TRANSMISSIONAND A/T INDICATOR (1UZ–FE)
1 2
X7 5 6
2 3 48 9 10
9X532
1 2
3 4
6 7 X
A A B B
E E
A A A
A A A
A A B B C C
D D E E
BB
D
B
DD
D
A A
A A A A
BBAAAA A A B B B B
2 X
X 8 X X X X X
A A A A AA A A A A A A A
1 2
A A A
A A A
1
2
AAAAAA A A A A A A
EE
EE
EE
E
(Hint : See Page 7)
J4 (B)
J6 J9GRAY
J17BLUE BLACK
GRAYS4
GRAY
GRAY
ORANGE
BLACK
GRAY
BLUE
BLUE
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
J14
(Hint : See Page 7)
J2 J3 (A) J5
J7 J11
M3 O1
P1 S11 T3
T5 V1
MEMO
ELECTRONICALLY CONTROLLED TRANSMISSION
5ASTARTER
1F1
25AEFI
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
EA35
P
N
6
5
EA34
2 3
1 5
1 1
1 1
EE
II11
E10
IA215 II43
E1 C4
2
1
C10
O/D
DIR
EC
T C
LUT
CH
SP
EE
D S
EN
SO
R
O 1
AC AC
BA
D2 E16 E8
BB BB
AB AB
EA29
PA
RK
/NE
UT
RA
LP
OS
ITIO
N S
W
P 1
JUN
CTI
ON
CO
NN
EC
TOR
J11
ENGINE CONTROL MODULE
EE 5 E 6D
BE 2 E 3A
FE 7
CE 4
JUN
CTI
ON
CO
NN
EC
TOR
JUN
CTI
ON
CO
NN
EC
TOR
A
A
STA +B B2
BR
B–R
B–R
B–Y
MREL BATT NCO–NCO+
B–L
B–L
B–Y
B–Y
B–Y
B–R
W–B
BB
B
B–RB
B–R
B–R
B–R
B–R
B
B–Y
B–Y R G
B–Y
B–Y
BR
BR
B–R
W–B
EFIRELAY
TO S
TA
RTE
RR
ELA
Y
, , ,
, ,
2
1
BJ
3A
, J
4
BJ
3A
, J
4
A
A
JUN
CTI
ON
CO
NN
EC
TOR
J 5
W–B
E9
IGSW
E
J14
5AIGN
FROM POWER SOURCE SYSTEM(SEE PAGE 60)
1G7
E
B–O
B–O
JUN
CTI
ON
CO
NN
EC
TOR
AND A/T INDICATOR (2JZ–GE)
C17 C9 C15 C8 C14 C7 C13 C1 C2 C3 C6
B14
1
2
E 2 E 2
B18
E 2
B15 B16
4
3
E 2
B2 B23 B24 D5
EA112
D
1121412
7
312
1 2 8 3 49 10 6 12 5 11
D
DATA LINKCONNECTOR 1
D 1
JUNCTIONCONNECTOR
J 9
ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOIDE 1
EN
GIN
E C
OO
LAN
TT
EM
P.
SE
NS
OR
E 8
AC
CE
LER
ATO
R P
ED
AL
PO
SIT
ION
SE
NS
OR
A10
TH
RO
TTLE
PO
SIT
ION
SE
NS
OR
T 3
BR
BR
B–R
BR BR BR BR
L–Y
THW E2 VPA VPA2 VC VTA VTA2 TC
OIL SLT+ SLT– SLN+ SLN– SLU+ SLU– S1 S2 S3 S4
G–R
G–B
R–B P L–B
G–W L–
R L
G–Y
Y–G Y
BR
L–Y
L–RL
L
L–R
B–R
BR
BR
BR
BR
BR
B–R BR
PP
–BP
–B
L–Y
Y–G
Y–R
L–Y
Y–G
Y–R
TC
+B E1
A A
JUNCTIONCONNECTOR
J 2
ENGINE CONTROL MODULE
EE 5 E 6D
BE 2 E 3A
FE 7
CE 4 , , ,
, ,
OO
G GR R L LG BR W B Y V
15ASTOP
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1H8
1
2
D6
A
A
WG
–WG
–W
STP
STO
P L
IGH
T S
WS
11JU
NC
TIO
NC
ON
NE
CTO
R
J 7
VPA1 VPA2 VC
E2
3
ELECTRONICALLY CONTROLLED TRANSMISSION
ED
E 1
B17
EC
A31A21 B1
EB
E 4
F9E22
BR
W–B
W–B
W–B
BR
W–B
W–B
W–B
BR BR
E1 E01 E02 E03 EC EOM
ENGINE CONTROL MODULE
,
PL RL NL DL 2L LL
7 8 10 9 2 3
4
EA22 EA16 EA33
D26 D16 B13 D17 B20 B21 A14 D7 D27
C5 C11
2
1
3 9 2
D
D
B B R–L
L
W
SP2–SP2+
R–L
R–L
L–Y
G–B
G–B
R–Y
Y–G
Y–BR
R–W
R–W R–B
R–W R–B
G–R
Y–B
Y–B
G
G–B
MPX1
MPX24L23DNRP
LW
D
A/T INDICATOR LIGHT SW[PARK/NEUTRAL POSITION SW]
SHIFT LOCK CONTROL ECU
JUNCTION CONNECTOR
JUN
CT
ION
CO
NN
EC
TOR
JUN
CTI
ON
CO
NN
EC
TOR
J 1
S 4
P 1
J 1
VE
HIC
LE S
PE
ED
SE
NS
OR
( ELE
CTR
ON
ICA
LLY
CO
NTR
OLL
ED
TR
AN
SM
ISS
ION
)
V 1
BE 2 A , E 3
EE 5 D , E 6
C, E 4
F, E 7
EA47 EA49
G–B
R–Y
AA AD
AA AD
J 3
A
D28
5
Y–B
AE
AE
BE Y–B
J 3
JUNCTIONCONNECTOR
BA , J 4
NSSD NSSL ATL AT4
AND A/T INDICATOR (2JZ–GE)
EA39
IJ13
A23 A24
IJ110
16
8
6
7
2
5
7 1
B B
L
W–B
R–L
W
L
R–L
PWR SNOW
R–L R–L
L
L–R
W
W( *
2)
WL
W–B
G–W
G–R
L
3
( *1)
( *1)
PW
R
SN
OW
JUNCTIONCONNECTOR
B 5
BODY ECU NO. 1
A
ELE
CTR
ON
ICA
LLY
CO
NT
RO
LLE
DTR
AN
SM
ISS
ION
PA
TTE
RN
SE
LEC
T S
W
MULTI–DISPLAY
A/C CONTROLASSEMBLY
M 3
A13
J17
E12
TILT ANDTELESCOPIC ECU
T 5
* 1 : W/ LEXUS NAVIGATION SYSTEM* 2 : W/O LEXUS NAVIGATION SYSTEM
MPX+
MPX–
MPX1
MPX2
MPX1
MPX2
MPX1
A19
W
ELECTRONICALLY CONTROLLED TRANSMISSION
10AGAUGE
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1D41H4
A1
II IF
B8A22B2
IE111IE117
1D5
1F13 1G6
R–L
L
W–B
W–B
R–L
A
AAA
AA
OW
–B
W–B
W
W–B
W–B
L
W–B
R–L
C12
COMBINATION METER
BA , C13
EC
T S
NO
W
EC
T P
WR
L 2 3 4 D N R
A/T
P
JUNCTIONCONNECTOR
JUNCTIONCONNECTOR
J17
J 6
CPU
AND A/T INDICATOR (2JZ–GE)
Previous automatic transmissions have selected each gear shift using mechanically controlled throttle hydraulic pressure,governor hydraulic pressure and lock–up hydraulic pressure. The electronically controlled transmission, however, electricallycontrols the line pressure, throttle pressure, lock–up pressure and accumulator pressure etc. through the solenoid valve. Theelectronically controlled transmission is a system which precisely controls gear shift timing and lock–up timing in response tothe vehicle’s driving conditions and the engine condition detected by various sensors. It makes smooth driving possible byshift selection for each gear which is the most appropriate to the driving conditions at that time, and by preventing downing,squat and gear shift shock when starting off.
1. GEAR SHIFT OPERATIONWhen driving, the engine warm up condition is input as a signal to TERMINAL THW of the engine control module from theengine coolant temp. sensor and the vehicle speed signal from vehicle speed sensor is input to TERMINAL SP2+ of theengine control module. At the same time, the throttle valve opening signal from the throttle position sensor is input toTERMINALS VTA and VTA2 of the engine control module as throttle angle signal.Based on these signals, the engine control module selects the best shift position for the driving conditions and sends currentto the electronically controlled transmission solenoid.
2. LOCK–UP OPERATIONWhen the engine control module decides based on each signal that the lock–up condition has been met, the current flowsthrough TERMINAL SLU+ of the engine control module to TERMINAL 4 of the electronically controlled transmission solenoidto TERMINAL 10 to TERMINAL SLU– of the engine control module to GROUND.
3. STOP LIGHT SW CIRCUITIf the brake pedal is depressed (Stop light SW on) when driving in lock–up condition, a signal is input to TERMINAL STP ofthe engine control module. The engine control module operates and cuts the current to the solenoid to release lock–up.
4. ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SELECT SW CIRCUITWhen the electronically controlled transmission pattern select SW is switched to PWR, a signal is input to TERMINAL PWRof the body ECU No.1, and control signals are distributed to the engine control module through communication control of thebody ECU. This enables shift–up and shift–down at a higher speed range.
E1 ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOID2–8 : 5.1–5.5 Ω3–9 : 3.5–3.9 Ω
4–10 : 5.1–5.5 Ω5, 6, 11, 12–GROUND : 11–15 Ω
E12 ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SELECT SW7–3 : Closed with select SW at PWR position1–3 : Only closed with select SW at SNOW position
V1 VEHICLE SPEED SENSOR (ELECTRONICALLY CONTROLLED TRANSMISSION)1–2 : 560–680 Ω
O1 O/D DIRECT CLUTCH SPEED SENSOR1–2 : 560–680 Ω
E3 (B), E5 (D), E6 (E) ENGINE CONTROL MODULEBATT–E1 : Always approx. 12 volts
+B–E1 : Approx. 12 volts with ignition SW ON or ST positionB2–E1 : Approx. 12 volts with ignition SW ON or ST position
MREL–E1 : Approx. 12 volts with ignition SW ON or ST positionSTA–E1 : Approx. 12 volts with ignition SW ST position and shift lever other than P or N position
P1 A/T INDICATOR LIGHT SW [PARK / NEUTRAL POSITION SW]4–7 : Closed with shift lever in P position4–8 : Closed with shift lever in R position
4–10 : Closed with shift lever in N position4–9 : Closed with shift lever in D position or 4 position4–2 : Closed with shift lever in 3 position4–3 : Closed with shift lever in 2 position or L position
SYSTEM OUTLINE
SERVICE HINTS
ELECTRONICALLY CONTROLLED TRANSMISSION
: PARTS LOCATION
Code See Page Code See Page Code See Page
A10 38 (2JZ–GE) E7 F 38 (2JZ–GE) J14 41
A13 40 E8 38 (2JZ–GE) J17 41
B5 A 40 E12 40 M3 41
C12 A 40 J1 39 (2JZ–GE) O1 39 (2JZ–GE)
C13 B 40 J2 39 (2JZ–GE) P1 39 (2JZ–GE)
D1 38 (2JZ–GE) J3 A 39 (2JZ–GE) S4 41
E1 38 (2JZ–GE) J4 B 39 (2JZ–GE) S11 41
E2 A 38 (2JZ–GE) J5 39 (2JZ–GE) T3 39 (2JZ–GE)
E3 B 38 (2JZ–GE) J6 41 T5 41
E4 C 38 (2JZ–GE) J7 41 V1 39 (2JZ–GE)
E5 D 38 (2JZ–GE) J9 41
E6 E 38 (2JZ–GE) J11 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1D 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA1
EA248 (2JZ GE) Engine Wire and Cowl Wire (Inside of the ECU Box)
EA348 (2JZ–GE) Engine Wire and Cowl Wire (Inside of the ECU Box)
EA4
IA2 50 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
II152 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
II452 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
IJ1 52 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
: GROUND POINTS
Code See Page Ground Points Location
EB 48 (2JZ–GE) Left Fender
EC 48 (2JZ–GE) Front Side of the Intake Manifold
ED 48 (2JZ–GE) Rear Side of the Intake Manifold
EE 48 (2JZ–GE) Under the ABS & TRAC & VSC Actuator
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E148 (2JZ GE) Engine Wire
E4 48 (2JZ–GE) Cowl Wire
E248 (2JZ–GE) Engine Wire
AND A/T INDICATOR (2JZ–GE)
1 2 3 4 X X
X 19 2324
X
22X
X
XX
XX
X
1
1 2 3 4 5 67 8 9 11 1210
X X 3 X
X X X X 11
12 X X X X X
X
X
1
161413
242017
2
X
18 21
15
23
1 2 3 4 5 6
7 8 9 10 11 X
13 14 15 X 17
X X X 5 6 X
X X X X
X X X 28
7
16 17
X 26
2
27
1 X X
8 9 10 X
16 X X 22
X
X X X X X X X X 9 X X
X X X X X X
21 21
5 X X
X
X 16
21X14
31
X
BLACKA13 B5 (A)
C12 (A) C13 (B)BLACK
GRAYE2 (A) E3 (B) E4 (C)
E5 (D) E6 (E) E7 (F)BLACK
1 3 X X 7A A A A AA A A A A A A A A A B B C C
D D E E
BBXXX D D D B
BLACK BLACKJ3 (A)
ORANGE
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
A10
D1
E1
E8
E12 J1 J2
2 8 X
X
ELECTRONICALLY CONTROLLED TRANSMISSIONAND A/T INDICATOR (2JZ–GE)
A A B B
E E
A A
A A A A
XX
D
X
DD
D
A A A
A A A
BBAAAA A A B B B B
1 2 2 X
X 8 X X X X X
X7 5 6
2 3 48 9 10
9X532 1 2 3 4
1 2
6 7 X
A A A
A A A
1
2
AAAAAA A A A A A A
J4 (B) J6
J9GRAY
J17
BLUE BLACK GRAY
S4BLACK GRAY BLACK
GRAY
BLUE
BLUE
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
EE
EE
EE
E
J14
(Hint : See Page 7)
J5 J7
J11
M3 O1 P1
S11 T3 T5 V1
MEMO
ENGINE CONTROL (1UZ–FE)
1
15A
AM
2
120A
ALT
1 1
7 6
8
AM2 IG2
ST2
1K1
7. 5AOBD
1H12
IA19
1F10
5ASTARTER
1F1
EA35
P
N
6
5
EA34
AC
BA
AC
25AEFI
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
II4
3
IA2
15
2 3
1 5
11
1 1
II11
IC28
B 3
M
5
4
EE BKBJ
A
107
2 2
JUNCTIONCONNECTOR
J15
IGNITION SWI22
PARK/NEUTRALPOSITION SW
P 1
FUE
L P
UM
PF1
5
FUE
L P
UM
PC
ON
TRO
L E
CU
F16
JUN
CT
ION
CO
NN
EC
TOR1 1
6 5 9 8
AA A
AJUNCTIONCONNECTOR
J20
B–L
BATTERY
B–R
B–R
B–R
B–L
B–R
W–B
W–B
L–W
L–RB
BB
B
B–R
B–L
B–R
B
B–R
B
B–R
W–B
TO STARTER RELAY
FP+ +B
FP– E DI FPC
B–L
B–LB
W
W–R
W–R
W–R
B
B–W B–W
B–W
W–B
B–R
B–Y
B–Y
B–Y
B–W
B–W
B–Y
B–Y
EFIRELAY
BJ
3A
, J
42
1
A
A
JUNCTIONCONNECTOR
J 5
W–B
W–B
B–W
B–W
B–Y
B–Y
B–R
B–R
B–L
B–R
B
B
1J6
5AIGN
1G7
E9E1E10
E
E
E 1 E 1 E 1 E 1
2
1
IC36
D10 E5 E4
IC319 IC37
D17
BB BB
AB AB
E16 E8
E 1
EA29
D BD B
AF AF
EA37
E 1
JUN
CT
ION
CO
NN
EC
TOR
JUN
CT
ION
CO
NN
EC
TOR
A A
2 4
E E
EA
3 1
E EAJUNCTIONCONNECTOR
J11JUNCTIONCONNECTOR
J 9
HE
ATE
D O
XY
GE
N S
EN
SO
R( B
AN
K 1
SE
NS
OR
2)
H20
VS
V (
VA
PO
RP
RE
SS
UR
E S
EN
SO
R)
V11
D18 D8
BR
B–R
B–R
BR
B
(SHIELDED)
(SHIELDED)
(SHIELDED)
EC
BR
B–R
W GR
B–R
B–RB
B–RB–L
W–R
W–R
B–L
B–R
B–R
B–R
B–R
B–R
B–R
B–R
B–R BR
BR
BR
BR
( SH
IELD
ED
)
OX HT
E1+B
HTL2OXL2+B1+BSTADIFPCTPC
JUNCTIONCONNECTOR
J14 2
1
2
1
2
1
2
1
EA27
B5 B6 A1 A2
B–O
B–O
Y
B–R L R
B–W
B–W
B–W
B–W
B–W
B–W B–W B–W B–W
B–R
B–W
INJE
CTO
R N
O.
1I1
3
INJE
CTO
R N
O.
2I1
4
INJE
CTO
R N
O.
3I1
5
INJE
CTO
R N
O.
4I1
6
MREL BATT IGSW #10 #20 #30 #40
ENGINE CONTROL MODULE
EE 5 D , E 6
BE 2 A , E 3
F, E 7B
J 3
A,
J 4
AJ
4B
, J
3
, CE 4 ,
ENGINE CONTROL (1UZ–FE)
E 1 E 1 E 1
E 1 E 1
2
1
2
1
2
1
2
1
1
2
A3 A4 A5 A29 B7A6
2
1
B–W
INJE
CTO
R N
O.
5I1
7
INJE
CTO
R N
O.
6I1
8
INJE
CTO
R N
O.
7I1
9
INJE
CTO
R N
O.
8I2
0 VS
V (
AC
IS)
V 2
VS
V (
EV
AP
)V
3
B10 B19 B22
MASS AIR FLOWMETER
M 1
5 3 1
4 2
B–R
B–W B–W
B–R
BRB
–W
B–W
B–W
B–W B–R
B–R
B–R BR
W R–L G B B–L
B–Y
R–L GR
W–R
+B E2
VG E2G THA
#50 #60 #70 #80 ACIS PRG VG EVG THA
ENGINE CONTROLMODULE
D27 D7 B12 B4
4 2
3 1
BR
OX HT
E1 +B
2 4
3 1
OX HT
+B E1
E 1
E 1
B11 B3
2 4
3 1
OX HT
+B E1
E 1
E 1
HE
AT
ED
OX
YG
EN
SE
NS
OR
( BA
NK
2 S
EN
SO
R 2
)
H21
HE
AT
ED
OX
YG
EN
SE
NS
OR
( BA
NK
1 S
EN
SO
R 1
)
H12
HE
AT
ED
OX
YG
EN
SE
NS
OR
( BA
NK
2 S
EN
SO
R 1
)
H14
EA112
D5
DA
TA L
INK
CO
NN
EC
TOR
1
D 1
D
12
11
D
A
A
3
(SHIELDED)
(SHIELDED)
(SHIELDED)
(SHIELDED)
(SHIELDED)
(SHIELDED)
(SHIELDED)
(SHIELDED)
(SHIELDED)
( SH
IELD
ED
)
( SH
IELD
ED
)
B17
E 1 E 1
ED
A
A
A
A
A
A
A
A
TC E1
+B
JUNCTIONCONNECTOR
J 2
JUNCTIONCONNECTOR
J 9
B–R
B–R
BR
B B
(SHIELDED)
(SHIELDED)
R
GR
–B
W Y–G B
R–Y
P–B BR
BR
BR
BR
B–R BR
B–R BR
PP
–B
BR
BR BR
B–RB–R
BR
OXR2 HTR2 OXL1 HTL OXR1 HTR TC E1
EE 5 D , E 6
BE 2 A , E 3
F, E 7
, CE 4 ,
(SHIELDED)
(SHIELDED)
(SHIELDED)
(SHIELDED)
(SHIELDED)
(SHIELDED)
B B
(SHIELDED)
(SHIELDED)
(SHIELDED)
21 12
A23 A22 A10
E 3
(SHIELDED)
(SHIELDED) (SHIELDED)
W B L Y
L YW
1 1
EC12 EC13
1 2
A18 A17 B16 B24
(SH
IELD
ED
)
( SH
IELD
ED
)
( SH
IELD
ED
)
GR
B
R G
GR B
NE+ NE– G2 KNKL KNKR VVL+ VVL–
CRANKSHAFTPOSITION SENSOR
C 5CAMSHAFT POSITIONSENSOR
C 1VVT SENSOR LHV 4
KN
OC
K S
EN
SO
R 1
K 1
KN
OC
K S
EN
SO
R 2
K 2
E 1 E 1 E 1
IC317 IC318 EA210
EA23
IC35
2
1 3
D22B18B14
2
1
E 1
E 2 E 2
1 2 3
B20B13B2B9B21
BR
EN
GIN
E C
OO
LAN
TTE
MP
. S
EN
SO
R
E 8
BR BR BR BR
L–R
L–Y
BR
BR
BR
L–R
L–Y
L–Y
Y–B
L–W
L–Y
BR
BR
L–Y
B–R L–Y
L–Y
R–B
L–B
BR
BR
VAPORPRESSURESENSOR
V10
ENGINE CONTROLMODULE
THW E2 PTNK VPA VPA2 VC VTA VTA2
4
EE 5 D , E 6
BE 2 A , E 3
F, E 7
,
E2 VCC
PTNK
4 2 1
AC
CE
LER
AT
OR
PE
DA
LP
OS
ITIO
N S
EN
SO
R
A10
THR
OTT
LE P
OS
ITIO
NS
EN
SO
R
T 3
CE 4 ,
VC VPA1 VPA2
E2
3
ENGINE CONTROL (1UZ–FE)
A11
2 3
A14
2 3
E 2
A16
2 3
E 2
A25
2 3
E 2
A27 A12
2 3
A13
2 3
E 1
A15
2 3
E 1
A26
2 3
E 1
A28
IGNITION COILAND IGNITERNO. 1
I 2IGNITION COILAND IGNITERNO. 4
I 5IGNITION COILAND IGNITERNO. 6
I 7IGNITION COILAND IGNITERNO. 7
I 8IGNITION COILAND IGNITERNO. 2
I 3IGNITION COILAND IGNITERNO. 3
I 4IGNITION COILAND IGNITERNO. 5
I 6IGNITION COILAND IGNITERNO. 8
I 9
G–B G–B R R
G–B
G–B
G–B
G–B R R R R
B–R
Y–B
R–L
Y–R
G–B
Y–G
R–W L–
Y
L–W R
IGT1 IGT4 IGT6 IGT7 IGF1 IGT2 IGT3 IGT5 IGT8 IGF2
B15 B23
1 2
E11
EA36
ED
(SHIELDED)
(SHIELDED)
(SHIELDED)
B
( SH
IELD
ED
)
( SH
IELD
ED
)
( SH
IELD
ED
)
C
16 5 4
C
7
A
Y L WW
W–BBRB
BR
B1A31A21A9
EC
A2F13
2G6
II
W–B
BR
W–B
W–B
W–B
W–B
BR
DATA LINKCONNECTOR 3
D 4
JUNCTIONCONNECTOR
J 9
VVT SENSOR RHV 5
JUNCTIONCONNECTOR
J10
ENGINE CONTROL MODULE
BE 2 E 3A CE 4
EE 5 E 6D FE 7
VVR+ VVR– SIL ME01 E01 E02 E03
SIL
BAT SG CG
,
,
,
, ,
D13 F11 F17 F19 F18
EB110
4 3 2
L–O
L–O
W
L–R
B–W G–B
ACMG MPX1 TXCT RXCK CODE
TXCT RXCK CODEMPX1
FRO
M A
/C C
OM
P R
ELA
Y
TRANSPONDER KEYAMPLIFIER
T 6
A20 A19
1 2
D19 D28
1 2
C12 B8
3 4
A8 A7
2 1
A30D26 F4
E 4EA45EA41
EB
THROTTLE CONTROL MOTORT 2
CAMSHAFT TIMINGOIL CONTROL VALVERH
C 4CAMSHAFT TIMINGOIL CONTROL VALVELH
C 3
OCV+ OCV– OCR+ OCR– EC EOM CL+ CL– M+ M– GE01
W–G
L–B
W–R
Y–R
W–B
W–B
G–R
Y–R
( SH
IELD
ED
)
G R
Y–R
W–G
W–B
ENGINE CONTROL MODULE
BE 2 E 3A CE 4
EE 5 E 6D FE 7,
,
,
,
B 5BODY ECU NO. 1
19
,
ENGINE CONTROL (1UZ–FE)
15AETCS
1
15ASTOP
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1H8
E13 E20 E14 E21 E22 E7 D6
IA26 1
2
IJ13
F24
D16E6IJ110
6
8
16
A
722141624
7
2
5
A
L
B–Y
GR–R
L
TACHW
NEOENG–ENG+TRC–TRC+
LW
W
W
L–RL
G–W
G–W
V–Y
L–Y
W
G–RLLGVP
GR
–R
B–Y
TRC+ TRC– ENG+ ENG– NEO +BM STP MPX2
( *1)
( *1)
( *2)
A20
J 7
S11STOP LIGHTSW
JUNCTIONCONNECTOR
ABS & TRAC & VSC ECU
A/C CONTROLASSEMBLY
MULTI–DISPLAY
A13
M 3
E 2
ENGINE CONTROL MODULE
BA , E 3 C, E 4 E 5, D E, E 6 F, E 7
T 5
TIL
T A
ND
TE
LES
CO
PIC
EC
U
2
1
MPX+
MPX–
MPX1
MPX2
MPX1
MPX2
10AGAUGE
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1D4
A1
B8A22B12B2
IFII
1D5
1F13 1G6
IE117 IE17IE210
A16
A
AA
A
L
B–Y
GR–R
W B–Y GR
L
B–Y
GR
–R
W–B O
W–B
W–B
W–B
R–L
C12
COMBINATION METER
BA , C13
TACHOMETER
MALFUNCTIONINDICATOR LAMP
JUNCTIONCONNECTOR
J 6
J17JUNCTIONCONNECTOR
* 1 : W/ LEXUS NAVIGATION SYSTEM* 2 : W/O LEXUS NAVIGATION SYSTEM
CPU
IE111
W–B
ENGINE CONTROL (1UZ–FE)
This system utilizes an engine control module and maintains overall control of the engine, transmission and so on. An outlineof the engine control is explained here.
1. INPUT SIGNALS(1) Engine coolant temp. signal circuit
The engine coolant temp. sensor detects the engine coolant temp. and has a built–in thermistor with a resistance whichvaries according to the engine coolant temp. The engine coolant temp. is input into TERMINAL THW of the enginecontrol module as a control signal.
(2) Intake air temp. signal circuitThe intake air temp. sensor is installed in the mass air flow meter and detects the intake air temp., which is input as acontrol signal to TERMINAL THA of the engine control module.
(3) Oxygen sensor signal circuitThe oxygen density in the exhaust emission is detected and is input as a control signal from the heated oxygen sensors(Bank 1 sensor 1, bank 2 sensor 1, bank 1 sensor 2 and bank 2 sensor 2) to TERMINALS OXL1, OXR1, OXL2 andOXR2 of the engine control module.To stabilize detection performance by the heated oxygen sensors, the heated oxygen sensors are warmed. This heateris also controlled by the engine control module (HTL, HTR, HTL2 and HTR2).
(4) RPM signal circuitCamshaft position is detected by the camshaft position sensor and its signal is input to TERMINAL G2 of the enginecontrol module as a control signal. Also, the engine RPM is detected by the crankshaft position sensor installed in thecylinder block and the signal is input into TERMINAL NE+ of the engine control module as a control signal.
(5) Throttle signal circuitThe throttle position sensor detects the throttle valve opening angle as a control signal, which is input into TERMINALSVTA and VTA2 of the engine control module.
(6) Vehicle speed circuitSignals detected by ABS speed sensors are input into the combination meter through ABS & TRAC & VSC ECU. Then itis delivered to the engine ECU through MPX communication.
(7) A/C SW signal circuitThe operating voltage of the A/C magnetic clutch is detected and the signal is input into TERMINAL ACMG of the enginecontrol module as a control signal.
(8) Battery signal circuitVoltage is constantly applied to TERMINAL BATT of the engine control module. With the ignition SW turned on, Voltagefor engine control module start–up power supply is applied to TERMINALS +B and +B1 of the engine control module viathe EFI relay.The current flowing through the IGN fuse to TERMINAL IGSW of the engine control module.Voltage is constantly applied to TERMINAL +BM of the engine control module.
(9) Intake air volume signal circuitIntake air volume is detected by the mass air flow meter and the signal is input to TERMINAL VG of the engine controlmodule as a control signal.
(10)Stop light SW signal circuitThe stop light SW is used to detect whether or not the vehicle is braking and the signal is input into TERMINAL STP ofthe engine control module as a control signal.
(11) Starter signal circuitTo confirm whether the engine is cranking, the voltage applied to the starter motor during cranking is detected and thesignal is input into TERMINAL STA of the engine control module as a control signal.
(12)Engine knock signal circuitEngine knocking is detected by knock sensor 1 and 2 and the signal is input into TERMINALS KNKL and KNKR as acontrol signal.
SYSTEM OUTLINE
2. CONTROL SYSTEM∗ SFI system
The SFI system monitors the engine condition through the signals input from each sensor (Input signals from (1) to (12)etc.) to the engine control module. The best fuel injection timing is decided based on this data and the programmemorized by the engine control module, and the control signal is output to TERMINALS #10, #20, #30, #40, #50, #60,#70 and #80 of the engine control module to operate the injector (Inject the fuel). The sequential multiport fuel injection(Electronic fuel injection) system controls the fuel injection operation by the engine control module in response to thedriving conditions.
∗ ESA (Electronic Spark Advance) systemThe ESA system monitors the engine condition through the signals input to the engine control module from each sensor(Input signals from (1), (2), (4) to (12) etc.). The best ignition timing is decided according to this data and the memorizeddata in the engine control module, and the control signal is output to TERMINALS IGT1, IGT2, IGT3, IGT4, IGT5, IGT6,IGT7 and IGT8. This signal controls the igniter to provide the best ignition timing for the driving conditions.
∗ Heated oxygen sensor heater control systemThe heated oxygen sensor heater control system turns the heater on when the intake air volume is low (Temp. ofexhaust emissions is low), and warms up the heated oxygen sensors (Bank 1 sensor 1, bank 2 sensor 1, bank 1 sensor2 and bank 2 sensor 2) to improve detection performance of the sensors.The engine control module evaluates the signals from each sensor (Input signals from (1), (2), (4), (8) to (10) etc.), andoutputs current to TERMINALS HTL, HTR, HTL2 and HTR2 to control the heater.
∗ ACISACIS includes a valve in the bulkhead separating the surge tank into two parts. This valve is opened and closed inaccordance with the driving conditions to control the intake manifold length in two stages for increased engine output inall ranges from low to high speeds.The engine control module judges the engine speed by the signals ( (4), (5) ) from each sensor and outputs signals tothe TERMINAL ACIS to control the VSV (ACIS).
∗ Fuel pump controlThe engine control module outputs current to TERMINAL FPC and controls the fuel pump control ECU and fuel pumpdrive speed in response to driving conditions.
∗ ETCS–iThe ETCS–i controls the engine output at its optimal level corresponding to the opening of the accel. pedal under alldriving conditions.
∗ MPXThe MPX communicates with the combination meter, A/C control assembly, as well as body ECU of the multiplexcommunication system
3. DIAGNOSIS SYSTEMWith the diagnosis system, when there is a malfunction in the engine control module signal system, the malfunctioningsystem is recorded in the memory. The malfunctioning system can be found by reading the code displayed by themalfunction indicator lamp.
4. FAIL–SAFE SYSTEMWhen a malfunction has occurred in any system, if there is a possibility of engine trouble being caused by continued controlbased on the signals from that system, the fail–safe system either controls the system by using data (Standard values)recorded in the engine control module memory or else stops the engine.
ENGINE CONTROL (1UZ–FE)
EFI RELAY5–3 : Closed with ignition SW at ON or ST position
E8 ENGINE COOLANT TEMP. SENSOR1–2 : Approx. 15.0 kΩ (–20°C, –4°F)
Approx. 2.45 kΩ (20°C, 68°F)Approx. 0.32 kΩ (80°C, 176°F)Approx. 0.14 kΩ (110°C, 230°F)
E2 (A), E3 (B), E5 (D), E6 (E) ENGINE CONTROL MODULEBATT–GROUND : Always approx. 12 volts+BM–GROUND : Always approx. 12 volts
IGSW–GROUND : Approx. 12 volts with ignition SW at ON or ST position+B, +B1–GROUND : Approx. 12 volts with ignition SW at ON or ST position
VC–GROUND : 4.5–5.5 volts with ignition SW onVTA2–GROUND : 2.0–2.9 volts with ignition SW on and throttle valve fully closed
4.6–5.0 volts with ignition SW on and throttle valve fully openedVTA–GROUND : 0.4–1.0 volts with ignition SW on and throttle valve fully closed
3.2–4.8 volts with ignition SW on and throttle valve fully openedVPA–GROUND : 0.25–0.9 volts with ignition SW at on and accelerator fully closed
3.2–4.8 volts with ignition SW at on and accelerator fully openedVPA2–GROUND : 1.8–2.7 volts with ignition SW at on and accelerator fully closed
4.7–5.0 volts with ignition SW at on and accelerator fully openedTHA–GROUND : 0.5–3.4 volts with idling, intake air temp. 20°C (68°F)THW–GROUND : 0.2–1.0 volts with idling, coolant temp. 80°C (176°F)STA–GROUND : 6.0 volts or more with crankingTC–GROUND : 9.0–14.0 volts with ignition SW onW–GROUND : 9.0–14.0 volts with idling
0–3.0 volts with ignition SW onACMG–GROUND : 0–1.5 volts with A/C SW on (at idling)
7.5–14.0 volts with A/C SW off and throttle valve fully open#10, #20, #30, #40, #50, #60, #70, #80–GROUND : 9.0–14.0 volts with ignition SW on pulse generation with idling
I13, I14, I15, I16, I17, I18, I19, I20 INJECTOR NO.1, NO.2, NO.3, NO.4, NO.5, NO.6, NO.7, NO.81–2 : 13.4–14.2 Ω
SERVICE HINTS
: PARTS LOCATION
Code See Page Code See Page Code See Page
A10 36 (1UZ–FE) H21 40 J9 41
A13 40 I2 37 (1UZ–FE) J10 41
A20 40 I3 37 (1UZ–FE) J11 41
B5 40 I4 37 (1UZ–FE) J14 41
C1 36 (1UZ–FE) I5 37 (1UZ–FE) J15 41
C3 36 (1UZ–FE) I6 37 (1UZ–FE) J17 41
C4 36 (1UZ–FE) I7 37 (1UZ–FE) J20 42
C5 36 (1UZ–FE) I8 37 (1UZ–FE) K1 37 (1UZ–FE)
C12 A 40 I9 37 (1UZ–FE) K2 37 (1UZ–FE)
C13 B 40 I13 37 (1UZ–FE) M1 37 (1UZ–FE)
D1 36 (1UZ–FE) I14 37 (1UZ–FE) M3 41
D4 40 I15 37 (1UZ–FE) P1 37 (1UZ–FE)
E2 A 36 (1UZ–FE) I16 37 (1UZ–FE) S11 41
E3 B 36 (1UZ–FE) I17 37 (1UZ–FE) T2 37 (1UZ–FE)
E4 C 36 (1UZ–FE) I18 37 (1UZ–FE) T3 37 (1UZ–FE)
E5 D 36 (1UZ–FE) I19 37 (1UZ–FE) T5 41
E6 E 36 (1UZ–FE) I20 37 (1UZ–FE) T6 41
E7 F 36 (1UZ–FE) I22 41 V2 37 (1UZ–FE)
E8 36 (1UZ–FE) J2 37 (1UZ–FE) V3 37 (1UZ–FE)
F15 42 J3 A 37 (1UZ–FE) V4 37 (1UZ–FE)
F16 42 J4 B 37 (1UZ–FE) V5 37 (1UZ–FE)
H12 36 (1UZ–FE) J5 37 (1UZ–FE) V10 43
H14 36 (1UZ–FE) J6 41 V11 43
H20 40 J7 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1D 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26
1GCowl Wire and Driver Side J/B (Left Kick Panel)
1H 27Cowl Wire and Driver Side J/B (Left Kick Panel)
1J
1K 26 Engine Room Main Wire and Driver Side J/B (Left Kick Panel)
2F 28Cowl Wire and Passenger Side J/B (Right Kick Panel)
2G 29Cowl Wire and Passenger Side J/B (Right Kick Panel)
ENGINE CONTROL (1UZ–FE)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA1
EA246 (1UZ FE) Engine Wire and Cowl Wire (Inside of the ECU Box)
EA346 (1UZ–FE) Engine Wire and Cowl Wire (Inside of the ECU Box)
EA4
EB1 46 (1UZ–FE) Cowl Wire and Relay Block Wire (Inside of the Engine Room No.3 R/B)
EC1 46 (1UZ–FE) Engine No.2 Wire and Engine Wire (Near the Starter)
IA150 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
IA250 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
IC250 Floor No 2 Wire and Cowl Wire (Left Kick Panel)
IC350 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
IE150 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IE250 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
II152 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
II452 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
IJ1 52 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
: GROUND POINTS
Code See Page Ground Points Location
EB 46 (1UZ–FE) Left Fender
EC 46 (1UZ–FE) RH Bank of the Cylinder Head
ED 46 (1UZ–FE) LH Bank of the Cylinder Head
EE 46 (1UZ–FE) Under the ABS & TRAC & VSC Actuator
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
BJ 54 Rear Floor Partition Panel LH
BK 54 Quarter Panel LH
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E1 E4 46 (1UZ–FE) Cowl Wire
E2 46 (1UZ–FE) Engine Wire B3 54 Floor No.2 Wire
E3
( ) g
1 2 3 4
1614X
2422
X
X
X
7
5 X X
X
X 16
X X
X 19
1 2 1 2 1 2 1 2
BLACKA13 A20
B5BLACK BLACK DARK GRAY
A10
C1 C3 C4 C5DARK GRAY
X
22X
X
XX
XX
X
16
1
X X 3 X X
X X X X 11
12 X X X X X
X
X
X
16 X X X X X X X
X 7 X 5 4 X X X
211716151410
31272622
1311
2523
18
28
19
29
20
30
12
X
1 2 3 4 5 6 7 8 9 1
16141312118
24222017
2
109
1918 21
15
23
3 4 5 6 7
C12 (A)BLACK
D4 E2 (A) E3 (B)
D1C13 (B)
21 21 X
4 5
X X X X
5 6 7 8 9 10
21
3 4
21
3 4 2 3 2 3 2 3
12
X
X 5 6 X
10 X 13 X 19
22 X 28
7
16 17
26
X
X
8
18
27
1 X 4 5 7
8 9 10 11 X X
16 X X 22
6
13 14
20 21X
4 X X X X X X 11 X X
171819
24
BLACKF15
BLACK DARK GRAY DARK GRAY
DARK GRAY DARK GRAY BLACK BLACK BLACK
E4 (C) E5 (D) E6 (E) E7 (F)
E8 F16 H12 H14
H20 H21 I2 I3 I4
1 23 4
21
3 4
2
2 8 X
X 1
ENGINE CONTROL (1UZ–FE)
2 3 2 3 2 3 2 3 2 3
1 2 1 2 1 2 1 2 1 2 1 2 1 2
1 2
X
X 6 7 8
B B C C
F F
A A A A AA A A A A A A A
BLACK BLACK BLACK BLACK BLACK
BLUE BLUE BLUE BLUE BLUE BLUE BLUE
BLUEI22
ORANGEJ3 (A)
(Hint : See Page 7)
(Hint : See Page 7)
I5 I6 I7 I8 I9
I13 I14 I15 I16 I17 I18 I19
I20 J2
A A B B
D D
A A A
A A A
A A
A A A A
A A A
A A A C
EE
CC
EE
CC
EE
ED
DD
D
A A A A AA A A A A A A A
EE
EE
EE
E
A A
A A
AAAA A A
1 1
A A
A A A A
54321 2 X
X 8 X X X X X
AAAAAA A A A A A A
J4 (B) J6GRAY
J9ORANGE GRAY
J14 J15 J17 J20
DARK GRAY DARK GRAY BLACK BLUE
BLUE
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
J5 J7
J10 J11
K1 K2 M1 M3
X
5 6
1
2
1 23 4
1 2
3 4
6 7 X
2 3 4 X1 2 1 2
1 2 1 2
GRAY BLUE GRAY GRAY GRAY
BLACK BLACK BLACK DARK GRAY DARK GRAY
P1 S11 T2 T3 T5
T6 V2 V3 V4 V5
1 2
BLACK BLUEV10 V11
1 2 3
ENGINE CONTROL (2JZ–GE)
1
15A
AM
2
120A
ALT
1 1
7 6
8
AM2 IG2
ST2
1K1
7. 5AOBD
1H12
IA19
1F10
5ASTARTER
1F1
EA35
P
N
6
5
EA34
AC
BA
AC
25AEFI
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
II4
3
IA2
15
2 3
1 5
11
1 1
II11
IC28
B 3
M
5
4
EE BKBJ
A
107
2 2
JUNCTIONCONNECTOR
J15
IGNITION SWI22
PARK/NEUTRALPOSITION SW
P 1
FUE
L P
UM
PF1
5
FUE
L P
UM
PC
ON
TRO
L E
CU
F16
JUN
CT
ION
CO
NN
EC
TOR1 1
6 5 9 8
AA A
AJUNCTIONCONNECTOR
J20
B–L
BATTERY
B–R
B–R
B–R
B–L
B–R
W–B
W–B
L–W
L–RB
BB
B
B–R
B–L
B–R
B
B–R
B
B–R
W–B
TO STARTER RELAY
FP+ +B
FP– E DI FPC
B–L
B–LB
W
W–R
W–R
W–R
B
B–W B–W
B–W
W–B
B–R
B–Y
B–Y
B–Y
B–W
B–W
B–Y
B–Y
EFIRELAY
BJ
3A
, J
42
1
A
A
JUNCTIONCONNECTOR
J 5
W–B
W–B
B–W
B–W
B–Y
B–Y
B–R
B–R
B–L
B–R
B
B
1J6
5AIGN
1G7
E9E1E10
E
E
E 2 E 2 E 2 E 2
2
1
IC36
F13 E5 E4
IC319 IC37
D2
BB BB
AB AB
E16 E8
E 2
EA29
D BD B
AF AF
EA37
E 1
JUN
CT
ION
CO
NN
EC
TOR
JUN
CT
ION
CO
NN
EC
TOR
A
2 4
E E
A
3 1
E EAJUNCTIONCONNECTOR
J11JUNCTIONCONNECTOR
J 9
HE
ATE
D O
XY
GE
N S
EN
SO
R( B
AN
K 2
SE
NS
OR
2)
H21
VS
V (
VA
PO
RP
RE
SS
UR
E S
EN
SO
R)
V11
F24 F25
B–R
BR
B
(SHIELDED)
(SHIELDED)
(SHIELDED)
EC
BR
B–R
R
GR
–BB–R
B–RB
B–RB–L
W–R
W–R
B–L
B–R
B–R
B–R
B–R
B–R
B–R
B–R BR
BR
BR
BR
( SH
IELD
ED
)
OX HT
E1+B
HT2BOX2BB2+BSTADIFPCTPC
JUNCTIONCONNECTOR
J14 1
2
1
2
1
2
1
2
EA27
B5 B6 A1 A2
B–O
B–O
Y
B–W L R
B–W
B–W
B–W
B–W
B–W
B–W B–W B–W B–W
B–R
B–W
INJE
CTO
R N
O.
1I1
3
INJE
CTO
R N
O.
2I1
4
INJE
CTO
R N
O.
3I1
5
INJE
CTO
R N
O.
4I1
6
MREL BATT IGSW #10 #20 #30 #40
ENGINE CONTROL MODULE
BJ
3A
, J
4
J 4
AB
, J
3
BE 2 A , E 3
FE 6 E , E 7
C, E 4 ,
E 5 D ,
ENGINE CONTROL (2JZ–GE)
E 2
E 2 E 2
1
2
1
2
1
2
2
1
A3 A4 A5 B7
B–W
INJE
CTO
R N
O.
5I1
7
INJE
CTO
R N
O.
6I1
8 VS
V (
AC
IS)
V 2
VS
V (
EV
AP
)V
3
B10 B19 B22
MASS AIR FLOWMETER
M 1
5 3 1
4 2
B–R B–R
BRB
–W
B–W B–R
B–R
B–R BR
W R–L
B–L
B–Y
R–L GR
W–R
+B E2
VG E2G THA
#50 #60 ACIS PRG VG EVG THA
ENGINE CONTROLMODULE
D8 F26 B11 B3
2 4
3 1
OX HT
+B E1
2 4
3 1
OX HT
+B E1
E 2
E 1
B12 B4
2 4
3 1
OX HT
+B E1
E 2
E 1
HE
AT
ED
OX
YG
EN
SE
NS
OR
( BA
NK
1 S
EN
SO
R 2
)
H13
HE
AT
ED
OX
YG
EN
SE
NS
OR
( BA
NK
2 S
EN
SO
R 1
)
H14
HE
AT
ED
OX
YG
EN
SE
NS
OR
( BA
NK
1 S
EN
SO
R 1
)
H12
EA112
D5
DATA LINKCONNECTOR 1
D 1
D
12
11
D
3
(SHIELDED)
(SHIELDED)
(SHIELDED)
(SHIELDED)
(SHIELDED)
(SHIELDED)
(SHIELDED)
( SH
IELD
ED
)
B17
E 1
TC E1
+B
JUNCTIONCONNECTOR
J 9
B–R
BR
B B
BR
W GR W Y
R
P–B BR
BRB
–R BR
B–R BR
PP
–B
BR
B–RB–R
BR
OX1B HT1B OX2A HT2A OX1A HT1A TC E1
E 2
B18
BR
E2
BR
E 2
E 1
B–R BR
BR
EA43EA410EA411
W GR
( SH
IELD
ED
)
B–R
BR
BE 2 A , E 3
FE 6 E , E 7
C , E 4
E 5 D ,
E 3
B
( SH
IELD
ED
)
4
OX1
(SHIELDED)
B
B
A
A
E 1
ED
A
A
A
A
A
JUNCTIONCONNECTOR
J 2
BR
BR
(SHIELDED)
(SHIELDED)
(SHIELDED)
(SHIELDED)
B B
(SHIELDED)
(SHIELDED)
21 12
A23 A22 A10
E 3
(SHIELDED) (SHIELDED)
W B L Y
L YW
1 1
A28 A27
(SH
IELD
ED
)
( SH
IELD
ED
)
B GR
NE+ NE– G2 KNK1 KNK2
CRANKSHAFTPOSITION SENSOR
C 5CAMSHAFT POSITIONSENSOR
C 1
KN
OC
K S
EN
SO
R 1
K 1
KN
OC
K S
EN
SO
R 2
K 2
E 2 E 2
IC317 IC318 EA210
EA23
IC35
2
1 3
D18B14
2
1
E 2
E 2 E 2
1 2 3
B24B23B2B16B15
BR
EN
GIN
E C
OO
LAN
TTE
MP
. S
EN
SO
R
E 8
THROTTLEPOSITION SENSOR
T 3
BR BR BR
L–R
L–Y
BR
BR
BR
L–R
L–Y
L–Y
L–RLL–Y
BR
L–Y
B–R L–Y
L–Y
Y–G
Y–R
BR
BR
VAPORPRESSURESENSOR
V10
ACCELERATOR PEDALPOSITION SENSOR
A10
ENGINE CONTROLMODULE
ABR
BR
THW PTNK VPA VPA2 VC VTA VTA2
4
BE 2 A , E 3
FE 5 D , E 7
C, E 4
PTNK
E2 VCC
4 2 1
3
,
E, E 6
VC VPA1 VPA2
(SHIELDED) A
E2
ENGINE CONTROL (2JZ–GE)
A11
7
IGNITERI 1
B–Y
IGT
A18 A17
1 2
E11
EA36
ED
(SHIELDED)
(SHIELDED)
B
( SH
IELD
ED
)
( SH
IELD
ED
)
( SH
IELD
ED
)
C
16 5 4
C
7
A
W–R
R–W W
W
W–BBRB
BR
B1A31A21A9
EC
A2F13
2G6
II
W–B
BR
W–B
W–B
W–B
W–B
BR
DATA LINKCONNECTOR 3
D 4
JUNCTIONCONNECTOR
J 9
CAMSHAFT TIMINGOIL CONTROL VALVE
C 2
JUNCTIONCONNECTOR
J10
ENGINE CONTROL MODULE
D13 D28 F21 F22 F23
EB110
4 3 2L–
OL–
O
W L–R
B–W G–B
ACMG MPX1 TXCT RXCK CODE
TXCT RXCK CODEMPX1
FR
OM
A/C
CO
MP
RE
LAY
BODY ECU NO. 1TRANSPONDER KEYAMPLIFIER
T 6
A12
6
B–L
IGT2
A13
5
B–R
IGT3
A25
4
B
IGF
OCV+ OCV– SIL ME01 E01 E02 E03
SIL
BAT SG CG
IN1 IN2 IN3 IGF
BE 2 A , E 3
EE 5 D , E 6
C, E 4
B 5
19
,
2
1
C11C5
VE
HIC
LE S
PE
ED
SE
NS
OR
( ELE
CT
RO
NIC
ALL
Y C
ON
TRO
LLE
D T
RA
NS
MIS
SIO
N)
V 1
R–L
L–Y
SP2+ SP2–
F, E 7
D27
IJ13
L
MPX2
ENGINE CONTROL MODULE
A20 A19
3 4
A8 A7
2 1
A30E22 F9
E 4
EB
THROTTLE CONTROL MOTORT 2
EC EOM CL+ CL– M+ M– GE01
W–B
W–B
G–R
Y–R
( SH
IELD
ED
)
W B
W–B
E6
W
GR
–R
E13 E20 E14
24 16 14
P V LG
TRC+ TRC– ENG+
TRC+ TRC– ENG+
ABS & TRAC & VSC ECUA20
ENG–
ENG–
L
22
21 E
NEO
NEO
G–R
7
15 E
15ASTOP
1H8
15AETCS
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
1
2
IA26
D6 E7
A
A
WG
–WG
–W
L–Y
V–Y
STOP LIGHTSW
S11
JUNCTIONCONNECTOR
J 7
2
1
STP BM
BE 2 A , E 3
EE 5 D , E 6
C, E 4
A16
1
2
EA14
IG
E 4
PS
LW
–BW
–B
W–B
W–B
(*2)
( *1)
PO
WE
R S
TE
ER
ING
OIL
PR
ES
SU
RE
SW
P 2
L
GR–R
,
F, E 7
* 2 : W/O DAYTIME RUNNING LIGHT* 1 : W/ DAYTIME RUNNING LIGHT
ENGINE CONTROL (2JZ–GE)
R–L
W–B
W–B
W–B
O
W–B
GR
–R
GR–RA
AA
10AGAUGE
J 6
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1D4
A1
A
B8A22
W
B12B2
IFII
1D5
GR
1F13 1G6
L
IE117 IE17
C12
COMBINATION METER
C13, A
JUNCTIONCONNECTOR
B
MALFUNCTIONINDICATOR LAMP
J17JUNCTIONCONNECTOR
CPU
IE111
W–B
( *4)
W
( *3)
L–R
W
WL
( *3)
M 3
A13
5
2
7
IJ110
MULTI–DISPLAY
A/C CONTROLASSEMBLY
16
8
6T 5
TILT
AN
DTE
LES
CO
PIC
EC
U
MPX+
MPX–
MPX1
MPX2
MPX1
MPX2
L
* 4 : W/O LEXUS NAVIGATION SYSTEM* 3 : W/ LEXUS NAVIGATION SYSTEM
TACHOMETER
The engine control system utilizes a microcomputer and maintains overall control of the engine, transmission etc. An outlineof the engine control is given here.
1. INPUT SIGNALS(1) Engine coolant temp. signal circuit
The engine coolant temp. sensor detects the engine coolant temp. and has a built–in thermister with a resistance, whichvaries according to the engine coolant temp. The engine coolant temp. is input into TERMINAL THW of the enginecontrol module as a control signal.
(2) Intake air temp. signal circuitThe intake air temp. sensor is installed in the mass air flow meter and detects the intake air temp. which is input as acontrol signal to TERMINAL THA of the engine control module.
(3) Oxygen density signal circuitThe oxygen density in the exhaust emission is detected by the heated oxygen sensors and input as a control signal toTERMINALS OX1A, OX2A, OX1B and OX2B of the engine control module.
(4) RPM signal circuitCamshaft position is detected by the camshaft position sensor and its signal is input to TERMINAL G2 of the enginecontrol module as a control signal.Also,engine RPM is detected by the crankshaft position sensor and is input as a control signal to TERMINAL NE+.
(5) Throttle position signal circuitThe throttle position sensor detects the throttle valve opening angle as a control signal, which is input into TERMINALVTA of the engine control module.
(6) Vehicle speed circuitThe vehicle speed sensor (Electronically controlled transmission) detects the vehicle speed and inputs a control signalto TERMINAL SP2+ of the engine control module.
(7) Battery signal circuitVoltage is constantly applied to TERMINAL BATT of the engine control module. With the ignition SW turned on, thevoltage for engine control module start–up power supply is applied to TERMINALS +B, B2 of the engine control modulevia the EFI relay.The current flowing through the IGN fuse flows to TERMINAL IGSW of the engine control module.Voltage is constantly applied to TERMINAL BM of the engine control module.
(8) Intake air volume signal circuitIntake air volume is detected by the mass air flow meter and the signal is input to TERMINAL VG of the engine controlmodule as a control signal.
(9) Stop light SW signal circuitThe stop light SW is used to detect whether the vehicle is braking or not and the signal is input into TERMINAL STP ofthe engine control module as a control signal.
(10)Starter signal circuitTo confirm whether the engine is cranking, the voltage is applied to the starter motor during cranking is detected and thesignal is input into TERMINAL STA of the engine control module as a control signal.
(11) Engine knock signal circuitEngine knocking is detected by knock sensors and the signal is input into TERMINALS KNK1 and KNK2 as a controlsignal.
SYSTEM OUTLINE
ENGINE CONTROL (2JZ–GE)
2. CONTROL SYSTEM∗ SFI system
The SFI system monitors the engine condition through the signals input from each sensor (Input signals from (1) to (11)etc.) to the engine control module. And the control signal is output to TERMINALS #10, #20, #30, #40, #50 and #60 ofthe engine control module to operate the injector (Inject the fuel). The SFI system controls the fuel injection operation bythe engine control module in response to the driving conditions.
∗ ESA systemThe ESA system monitors the engine condition through the signals input to the engine control module from each sensor(Input signals from (1), (2), (4), to (11) etc.). The best ignition timing is decided according to this data and the memorizeddata in the engine control module and the control signal is output to TERMINALS IGT, IGT2, IGT3. This signal controlsthe igniter to provide the best ignition timing for the driving conditions.
∗ Heated oxygen sensor heater control systemThe heated oxygen sensor heater control system turns the heater on when the intake air volume is low (Temp. ofexhaust emissions is low), and warms up the oxygen sensors to improve detection performance of the sensors. Theengine control module evaluates the signals from each sensor (Input signals from (1), (2), (4), (7), to (9) etc.), andoutputs current to TERMINALS HT1A, HT2A, HT1B and HT2B to control the heater.
∗ Fuel pump control systemThe engine control module outputs current to TERMINAL FPC and controls the fuel pump control ECU and fuel pumpdrive speed in response to the driving conditions.
∗ ACISACIS includes a valve in the bulkhead separating the surge tank into two parts. This valve is opened and closed inaccordance with the driving conditions to control the intake manifold length in two stages for increased engine output inall ranges from low to high speeds.
∗ ETCS–iThe ETCS–i controls the engine output at its optimal level corresponding to the opening of the accel. pedal under alldriving conditions.
∗ MPXThe MPX communicates with the combination meter, A/C control assembly, as well as body ECU of the multiplexcommunication system
3. DIAGNOSIS SYSTEMWith the diagnosis system, when there is a malfunction in the engine control module signal system, the malfunctioningsystem is recorded in the memory. The malfunctioning system can be found by reading the code displayed by themalfunction indicator lamp.
4. FAIL–SAFE SYSTEMWhen a malfunction has occurred in any system, if there is a possibility of engine trouble being caused by continued controlbased on the signals from that system, the fail–safe system either controls the system by using data (Standard values)recorded in the engine control module memory or else stops the engine.
EFI RELAY5–3 : Closed with ignition SW at ON or ST position
E8 ENGINE COOLANT TEMP. SENSOR1–2 : Approx. 15.0 kΩ (–20°C, –4°F)
Approx. 2.45 kΩ (20°C, 68°F)Approx. 0.32 kΩ (80°C, 176°F)Approx. 0.14 kΩ (110°C, 230°F)
E2 (A), E3 (B), E5 (D), E6 (E) ENGINE CONTROL MODULEBATT–GROUND : Always approx. 12 volts
BM–GROUND : Always approx. 12 voltsIGSW–GROUND : Approx. 12 volts with ignition SW at ON or ST position+B, B2–GROUND: Approx. 12 volts with ignition SW at ON or ST position
VC–GROUND : 4.5–5.5 volts with ignition SW onVTA2–GROUND : 2.0–2.9 volts with ignition SW on and throttle valve fully closed
4.6–5.0 volts with ignition SW on and throttle valve fully openedVTA–GROUND : 0.4–1.0 volts with ignition SW on and throttle valve fully closed
3.2–4.8 volts with ignition SW on and throttle valve fully openedVPA–GROUND : 0.25–0.9 volts with ignition SW at on and accelerator fully closed
3.2–4.8 volts with ignition SW at on and accelerator fully openedVPA2–GROUND : 1.8–2.7 volts with ignition SW at on and accelerator fully closed
4.7–5.0 volts with ignition SW at on and accelerator fully openedTHA–GROUND : 0.5–3.4 volts with idling, intake air temp. 20°C (68°F)THW–GROUND : 0.2–1.0 volts with idling, coolant temp. 80°C (176°F)STA–GROUND : 6.0 volts or more with crankingTC–GROUND : 9.0–14.0 volts with ignition SW onW–GROUND : 9.0–14.0 volts with idling
0–3.0 volts with ignition SW onACMG–GROUND: 0–1.5 volts with A/C SW on (at idling)
7.5–14.0 volts with A/C SW off and throttle valve fully open#10, #20, #30, #40, #50, #60–GROUND : 9.0–14.0 volts with ignition SW on pulse generation with idling
I13, I14, I15, I16, I17, I18 INJECTOR NO.1, NO.2, NO.3, NO.4, NO.5, NO.61–2 : 13.4–14.2 Ω
SERVICE HINTS
ENGINE CONTROL (2JZ–GE)
: PARTS LOCATION
Code See Page Code See Page Code See Page
A10 38 (2JZ–GE) H13 38 (2JZ–GE) J15 41
A13 40 H14 38 (2JZ–GE) J17 41
A20 40 H21 40 J20 42
B5 40 I1 39 (2JZ–GE) K1 39 (2JZ–GE)
C1 38 (2JZ–GE) I13 39 (2JZ–GE) K2 39 (2JZ–GE)
C2 38 (2JZ–GE) I14 39 (2JZ–GE) M1 39 (2JZ–GE)
C5 38 (2JZ–GE) I15 39 (2JZ–GE) M3 41
C12 A 40 I16 39 (2JZ–GE) P1 39 (2JZ–GE)
C13 B 40 I17 39 (2JZ–GE) P2 39 (2JZ–GE)
D1 38 (2JZ–GE) I18 39 (2JZ–GE) S11 41
D4 40 I22 41 T2 39 (2JZ–GE)
E2 A 38 (2JZ–GE) J2 39 (2JZ–GE) T3 39 (2JZ–GE)
E3 B 38 (2JZ–GE) J3 A 39 (2JZ–GE) T5 41
E4 C 38 (2JZ–GE) J4 B 39 (2JZ–GE) T6 41
E5 D 38 (2JZ–GE) J5 39 (2JZ–GE) V1 39 (2JZ–GE)
E6 E 38 (2JZ–GE) J6 41 V2 39 (2JZ–GE)
E7 F 38 (2JZ–GE) J7 41 V3 39 (2JZ–GE)
E8 38 (2JZ–GE) J9 41 V10 43
F15 42 J10 41 V11 43
F16 42 J11 41
H12 38 (2JZ–GE) J14 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1D 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26 Cowl Wire and Driver Side J/B (Left Kick Panel)
1G
1H 27 Cowl Wire and Driver Side J/B (Left Kick Panel)
1J
( )
1K 26 Engine Room Main Wire and Driver Side J/B (Left Kick Panel)
2F 28Cowl Wire and Passenger Side J/B (Right Kick Panel)
2G 29Cowl Wire and Passenger Side J/B (Right Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA1
EA248 (2JZ GE) Engine Wire and Cowl Wire (Inside of the ECU Box)
EA348 (2JZ–GE) Engine Wire and Cowl Wire (Inside of the ECU Box)
EA4
EB1 48 (2JZ–GE) Cowl Wire and Relay Block Wire (Inside of the Engine Room No.3 R/B)
IA150 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
IA250 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
IC250 Floor No 2 Wire and Cowl Wire (Left Kick Panel)
IC350 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
II152 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
II452 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
IJ1 52 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
: GROUND POINTS
Code See Page Ground Points Location
EB 48 (2JZ–GE) Left Fender
EC 48 (2JZ–GE) Front Side of the Intake Manifold
ED 48 (2JZ–GE) Rear Side of the Intake Manifold
EE 48 (2JZ–GE) Under the ABS & TRAC & VSC Actuator
IF 50 Left Kick Panel
IG 50 Left Side of the Cowl Panel
II 50 Right Side of the Cowl Panel
BJ 54 Rear Floor Partition Panel LH
BK 54 Quarter Panel LH
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E1 E4 48 (2JZ–GE) Cowl Wire
E2 48 (2JZ–GE) Engine Wire B3 54 Floor No.2 Wire
E3
( ) g
1 2 3 4
1614X
2422
X
X
X
7
X X
X 19
1 2 1 2 1 2
X
2X
X
XX
XX
X
1
X X 3 4 X
X X X X 11
12 X X X X X
X
X
2
5 X X
X
X 16
BLACKA13 A20
BLACK BLACK DARK GARY
C12 (A) C13 (B)BLACK
B5
A10
C1 C2 C5
D1
2
2 8 X
X 1
ENGINE CONTROL (2JZ–GE)
X X X 5 6 X
X 13 X X X
X X X 28
X
2
8
18
27
X X X X X X X X 9 X X 13
X X X X X X 212223 24 25 261 X X 4 5 7
8 9 10 11 X 15
16 X X 22
6
13 14
20 21X
21 21 X
4 5
X X X X
5 6 7 8 9 1021
3 4
21
3 4
1 2
3 4
21
3 4 4 5 76
1 2
1 2 1 2 1 2 1 2
X
X 6 7 8
5
11 X
X
1 2
E5 (D) E6 (E) E7 (F)
F15BLACK DARK GRAY DARK GRAY
DARK GRAY DARK GRAY BLACK DARK GRAY
DARK GRAY BROWN DARK GRAY BROWNI22
BLACK
E4 (C)
BROWN
16 X X X X X X X
X 7 X 5 4 X X X
1
16141211
242217
2
10X
1918
15
23
3 4 5 6 7
211716X10
312722
1311
2523
18
28
19
20
30
12
X
1 2 3 4 5 7 8 9
D4 E2 (A) E3 (B)
E8 F16 H12 H13
H14 H21 I1 I13
I14 I15 I16 I17 I18
A A A A AA A A A A A A A
A A
A A
A A A
A A A
EE
EE
EE
E
A A
A A A A1 1
54321
X
5 6
1 2
1 23 4
1 2 3 4
1
2
1 2
2 3 4 X
1 21 2
C
EE
CC
EE
CC
EE
XX
ED
X
DD
D
AAAA A A
6 7 X
2 X
X 8 X X X X X
1 2
A A A
A A A
A A
A A A A
ORANGE
GRAYJ14 J15
J20DARK GRAY DARK GRAY BLACK
GRAY DARK GRAY BLUE
GRAY BLACK BLACK
BROWN BLUE BLACK BLUE
J9
J17
BLUE
GRAY BLACK
GRAYJ6
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
A A A A AA A A A A A A A B B C C
F F
A A B B
D D
AAAAAA A A A A A A
ORANGEJ3 (A) J4 (B)
BLUE
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
J2 J5
J7 J10
J11
K1 K2 M1
M3 P1 P2 S11
T2 T3 T5 T6 V1
V2 V3 V10 V11
1 2 3
ENGINE IMMOBILISER SYSTEM (1UZ–FE)
25AEFI
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
2 3
1 5
11
11
II11
IA215 II43
E10
MREL
E1
BATT
F17
TXCT
F19
RXCK
F18
CODE
F20
KSW
EE IFEB II
A
A
A A
1
2
2G6
2F13
A
2
1 5
A A
1
4 3 2
A A
A
+B GND
B–Y
B–Y
B–R
W–B
TXCT RXCK CODE
B–Y
B–Y
B–Y
B–Y
B–Y
W–B
B–R
B–R
W–B
W–B
L–R
B–W G–B
YY
W–B
W–B
W–B
W–B
ENGINE CONTROL MODULE
JUNCTIONCONNECTOR
J11
JUNCTIONCONNECTOR
J 9
JUNCTIONCONNECTOR
J 6
UNLOCKWARNINGSW
U 1
JUNCTIONCONNECTOR
J10
EFIRELAY
2
1
TRA
NS
PO
ND
ER
KE
Y C
OIL
ANT1
ANT2
F3
IE25
TO C
OM
BIN
ATI
ON
ME
TER
VV
V
W–B
5
B
B
2
SE
CU
RIT
Y IN
DIC
AT
OR
[RH
EO
STA
T]
R 7
JUNCTIONCONNECTOR
J14
IMLD
FE 6 E , E 7
TRANSPONDERKEY AMPLIFIER
T 6
A
A
JUNCTIONCONNECTOR
J 5
EFI RELAY5–3 : Closed with the ignition SW at ON position
U1 UNLOCK WARNING SW1–2 : Closed with the ignition key in cylinder
: PARTS LOCATION
Code See Page Code See Page Code See Page
E6 E 36 (1UZ–FE) J9 41 R7 41
E7 F 36 (1UZ–FE) J10 41 T6 41
J5 37 (1UZ–FE) J11 41 U1 41
J6 41 J14 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
2F 28Cowl Wire and Passenger Side J/B (Right Kick Panel)
2G 29Cowl Wire and Passenger Side J/B (Right Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IA2 50 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
IE2 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
II152 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
II452 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
: GROUND POINTS
Code See Page Ground Points Location
EB 46 (1UZ–FE) Left Fender
EE 46 (1UZ–FE) Under the ABS & TRAC & VSC Actuator
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
3 X X X X X X X X
171819 20
1 X
10 X X
X X
X
A A
A A A A
A
A A
A A A A AA A A A A A A A
A A A
A A A
AAAAAA A A A A A A
E6 (E) E7 (F) J6
J9ORANGE GRAY
BLUE
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7) (Hint : See Page 7)
J5
J10 J11
SERVICE HINTS
ENGINE IMMOBILISER SYSTEM (1UZ–FE)
X 2 5 X X 1 2 3 4 5 X 2
1
BB
B
J14 R7BLACK
U1
(Hint : See Page 7)
T6
MEMO
ENGINE IMMOBILISER SYSTEM (2JZ–GE)
25AEFI
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
2 3
1 5
11
11
II11
IA215 II43
E10
MREL
E1
BATT
F21
TXCT
F22
RXCK
F23
CODE
F10
KSW
EE IFEB II
A
A
A A 1
2
2G6
2F13
A
2
1 5
A A
1
4 3 2
A A
A
+B GND
B–Y
B–Y
B–R
W–B
TXCT RXCK CODE
B–Y
B–Y
B–Y
B–Y
B–Y
W–B
B–R
B–R
W–B
W–B
L–R
B–W G–B
YY
W–B
W–B
W–B
W–B
ENGINE CONTROL MODULE
FE
JUNCTIONCONNECTOR
J11
JUNCTIONCONNECTOR
J 9
JUNCTIONCONNECTOR
J 6
UNLOCKWARNINGSW
U 1
TRANSPONDERKEY AMPLIFIER
T 6
JUNCTIONCONNECTOR
J10
EFIRELAY
2
1
TRA
NS
PO
ND
ER
KE
Y C
OIL
ANT1
ANT2
F20
B
B
VV
JUNCTIONCONNECTOR
J14
IE25
5
2
VW
–BT
O C
OM
BIN
ATI
ON
ME
TER
IMLD
SE
CU
RIT
Y IN
DIC
ATO
R[R
HE
OS
TAT]
R 7
E 6 , E 7
A
A
JUNCTIONCONNECTOR
J 5
EFI RELAY5–3 : Closed with the ignition SW at ON position
U1 UNLOCK WARNING SW1–2 : Closed with the ignition key in cylinder
: PARTS LOCATION
Code See Page Code See Page Code See Page
E6 E 38 (2JZ–GE) J9 41 R7 41
E7 F 38 (2JZ–GE) J10 41 T6 41
J5 39 (2JZ–GE) J11 41 U1 41
J6 41 J14 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
2F 28Cowl Wire and Passenger Side J/B (Right Kick Panel)
2G 29Cowl Wire and Passenger Side J/B (Right Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IA2 50 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
IE2 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
II152 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
II452 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
: GROUND POINTS
Code See Page Ground Points Location
EB 48 (2JZ–GE) Left Fender
EE 48 (2JZ–GE) Under the ABS & TRAC & VSC Actuator
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
1 X X
10 X
X X
X
A A
A A A A
XX
XA
A A
A A A A AA A A A A A A A
A A A
A A A
X X X X X X X X 10 X X
X X X X X X 20212223
AAAAAA A A A A A A
E6 (E) E7 (F) J6
J9ORANGE GRAY
BLUE
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7) (Hint : See Page 7)
J5
J10 J11
SERVICE HINTS
ENGINE IMMOBILISER SYSTEM (2JZ–GE)
X 2 5 X X 1 2 3 4 5 X 2
1
BB
B
J14 R7BLACK
U1
(Hint : See Page 7)
T6
MEMO
FOG LIGHT
15AH–LPR LWR
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
15AFR FOG
II27
1H3
2 5
1 3
A17
FOG
LOW
OFF
A
A
II IF EB EA
A
2F13
2G6
1H9 1B10
II42
1
2
1
2
5
12 11 18
17
A
A
G–B
W–B
R–L
R–L
G–W
W–B
W–B
W–B
W–B
W–B
W–B
R–B
R–B
R–B
JUN
CT
ION
CO
NN
EC
TO
R
J10
FOG LIGHT SW[COMB. SW]
C14
2
1
FRO
NT
FO
GLI
GH
T R
H
F 2
FRO
NT
FO
GLI
GH
T LH
F 1
B 6
BODY ECUNO. 2
AFFGO
FFOG
FOGRELAY
1G61F13
A
11
GND
W–B
W–B
A
A
W–B
W–B
JUN
CTI
ON
CO
NN
EC
TO
R
J17
JUN
CTI
ON
CO
NN
EC
TOR
J 6
FOG RELAY3–5 : Closed with dimmer SW at LOW position and fog light SW on
: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 A 40 F1 38 (2JZ–GE) J6 41
C14 40F2
36 (1UZ–FE) J10 41
F1 36 (1UZ–FE)F2
38 (2JZ–GE) J17 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1B26
1F26
Cowl Wire and Driver Side J/B (Left Kick Panel)1G
27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
2F 28Cowl Wire and Passenger Side J/B (Right Kick Panel)
2G 29Cowl Wire and Passenger Side J/B (Right Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
II252 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
II452 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
: GROUND POINTS
Code See Page Ground Points Location
EA46 (1UZ–FE)
Right FenderEA48 (2JZ–GE)
Right Fender
EB46 (1UZ–FE)
Left FenderEB48 (2JZ–GE)
Left Fender
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
X
X 17 X X X X
1 2 1 2
A A
A A A AA A A A AA A A A A A A A
X X
X 11
12
X
1817
X
AAAA A A
B6 (A) C14BROWN BROWN
J6ORANGE
J17
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
F1 F2
J10
SERVICE HINTS
FUEL LID OPENER
10AFUEL OPN
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1F6
1
2
IC316
M
3
2
BKBJ
AA
FUEL LIDOPENER SW
F 8
FUEL LIDOPENER MOTOR
F14
JUNCTIONCONNECTOR
J20W–B
W–B
L–W
L–W
L–O
F8 FUEL LID OPENER SW2–1 : Closed with fuel lid opener SW on
: PARTS LOCATION
Code See Page Code See Page Code See Page
F8 40 F14 42 J20 42
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1F 26 Cowl Wire and Driver Side J/B (Left Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IC3 50 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
: GROUND POINTS
Code See Page Ground Points Location
BJ 54 Rear Floor Partition Panel LH
BK 54 Quarter Panel LH
1 2 X 2 3 XA A
A A A A
GREEN BLACKJ20
(Hint : See Page 7)
F8 F14
SERVICE HINTS
GARAGE DOOR OPENER
10ADOME
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
2D7
1
2
II
2D5
2G6 2F13
IF
GARAGE DOOROPENER
G 5
JUNCTIONCONNECTOR
J10
JUNCTIONCONNECTOR
J 6
A
A
A
L–Y
W–B
W–B
W–B
W–B
G5 GARAGE DOOR OPENER2–GROUND : Always approx. 12 volts1–GROUND : Always continuity
: PARTS LOCATION
Code See Page Code See Page Code See Page
G5 42 J6 41 J10 41
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
2D 28 Roof Wire and Passenger Side J/B (Right Kick Panel)
2F 28Cowl Wire and Passenger Side J/B (Right Kick Panel)
2G 29Cowl Wire and Passenger Side J/B (Right Kick Panel)
: GROUND POINTS
Code See Page Ground Points Location
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
1 2 A A
A A A AA A A A AA A A A A A A A
G5 J6ORANGE
(Hint : See Page 7)(Hint : See Page 7)
J10
SERVICE HINTS
HEADLIGHT (w/ DAYTIME RUNNING LIGHT)
BATTERY
40AMAIN
1
2
1
1 1
30A
DR
L N
O. 2
1
2
1
II214 II47
EB11
OFF
TAIL
HEAD
LOW
HIGH
FLASH
LIG
HT
CO
NT
RO
L S
WD
IMM
ER
SW
I 1
C
5 2
14 9
C C
16 17
8
C
DA
YTI
ME
RU
NN
ING
LIG
HT
RE
LAY
(M
AIN
)D
5
COMBINATION SWC14
JUNCTIONCONNECTOR
R–B
R–W
W–B
Y–R
R–GR–G
B–L
W–B
W–B
R–G
R–B
Y–R
R–B
R–G
R–G
R–G
R–W
R–G
R–B
R–W
R–G
R–W
W–B W–B
HE
AD
LP
RE
LAY
HRLY
ALTLHEAD
HI
H
CH
G–
8
W–L
A9
A15 A10
B 6
BODY ECU NO. 2
A
1G6 1F13
11
GND
IF
W–B
W–B
A
JUNCTIONCONNECTOR
J 6
2 4
1 3
A19
1D5
IE18
MPX2
W
W–B
WW
W–B
II
W–B
W–B
A
A
JUN
CT
ION
CO
NN
EC
TO
RJ1
7
J14
5AECU–B2
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
2F7
10AGAUGE
1H4
C
C
7
W–R
W–R
B
B
1
R–L
R–L
4 2
3 1
3 3
3 3
EB18
9
R–Y
R–Y
15AH–LPR UPR
15AH–LPL UPR
3
2
1
3 3
EB112
1
4 6
2
1
R–B
R
R
W–R
W–B
R–W
R–WR–W
R–B
R–G
W–R
W–B
Y–B
PARKINGBRAKE SW
P 4
JUNCTIONCONNECTOR
J17JUNCTIONCONNECTOR
J18
DAYTIME RUNNINGLIGHT RELAY (MAIN)
D 5
DIM
ME
R D
RL
NO
. 2 R
ELA
Y
II49
1
2
1
2
II410
C
CC
R
R–G
W–R
W–R
W–R
HE
AD
LIG
HT
RH
(H
IGH
)H
10
HE
AD
LIG
HT
LH (
HIG
H)
H 8
W–R
RK
B
+B IG
DR
L
E
JUNCTIONCONNECTOR
J15
II
2F13
2G6
IE112
IE211
B
B
A
A15
B7
IF
B
A
B
A
B
A
A
B
RR
PW
–BW
–B
W–B
W–B
W–B
JUNCTIONCONNECTOR
J18
AJUNCTIONCONNECTOR
J10
W–B
W–B
W–R
R
W–B
JUNCTIONCONNECTOR
J 6
JUNCTIONCONNECTOR
J11
W
W–B
5ASRS–B
1D3
C12
CO
MB
INA
TIO
N M
ET
ER
BA
, C
13
A14
B11 A22
CPU
FROM POWER SOURCESYSTEM (SEE PAGE 60)
L–B
( US
A)
W
HIG
H B
EA
M
HE
AD
W–B
HEADLIGHT (w/ DAYTIME RUNNING LIGHT)
II44
30ADRLNO. 1
1
2
1
1
15AH–LPL LWR
1
2
1
15AH–LPR LWR
1
2
1
IA11
2
1
2
1
EEEB
E 4
R–B
R
R
W–R
W–B
R–G Y
R–Y
R–L
W–B
W–B
W–B
HE
AD
LIG
HT
LH (
LOW
)H
9 HE
AD
LIG
HT
RH
(LO
W)
H11
R–B
B1B3A2
B2B4A1A5
E 4
EB13
A3
R–B
( *2)
R–G
( *1)
R–G
W–B
W–B
W–B
W–B
R–L
W–R
R
D 2
DA
YTI
ME
RU
NN
ING
LIG
HT
RE
LAY
NO
. 3
A
D 3
DA
YTI
ME
RU
NN
ING
LIG
HT
RE
LAY
NO
. 4
B
R
* 1 : 1UZ–FE* 2 : 2JZ–GE
* 4 : EXCEPT HID TYPE* 3 : HID TYPE
2
1
W–B
(*4)
( *4)
( *4)
( *4)
1
2
1
2
( *3)
( *3)
( *3)
( *3)
W–B
W–B
R–L
R–Y
HE
AD
LIG
HT
CO
NTR
OL
EC
U L
HH
6
HE
AD
LIG
HT
CO
NTR
OL
EC
U R
HH
7
DA
YTI
ME
RU
NN
ING
LIG
HT
RE
SIS
TO
R
D26
W–B
W–B
2
1
SH
OR
T C
ON
NE
CTO
RD
26
R–L
(CANADA)
W–B
(CANADA)
( CA
NA
DA
)
( US
A)
1. DAYTIME RUNNING LIGHT OPERATIONWhen the engine is started, the generator signal is input from the body ECU No.2 to TERMINAL 5 of the daytime runninglight relay (Main). At this time, when the parking brake pedal is depressed (The parking brake SW is on), the relay is notactivated and the daytime running light system does not function. When the parking brake pedal is released (The parkingbrake SW is off), the signal is input to TERMINAL 4 of the daytime running light relay (Main). This activates the relay to turnon the DIMMER DRL NO.2 relay. The current flows from the battery into the MAIN fuse to DRL NO.2 fuse to DIMMER DRLNO.2 relay (Point side) to H–LP L UPR fuse to TERMINAL 2 of the headlight LH (High) to TERMINAL 1 to TERMINAL 1 ofthe headlight RH (High) to TERMINAL 2 to TERMINAL (A) 5 of the daytime running light relay No.3 to TERMINAL (A) 3 toTERMINAL 1 of the daytime running light resistor (USA) or short connector (Canada) to TERMINAL 2 to GROUND. Theheadlights light up more dimly than usual as the engine is started.Once the daytime running light system has been activated, the headlights are remained lit even though the parking brakepedal is depressed (The parking brake SW is on). Even if the engine is stopped and the generator signal is cut off with theignition SW set at ON, the headlights are remained lit. When the ignition SW is turned from ON to OFF, the daytime runninglight system is stopped and the headlights go off. If the engine is started with the parking brake pedal released, the daytimerunning light system starts functioning and the headlights light up as the engine is started.
2. HEADLIGHT OPERATION∗ Light control SW is set at HEAD.
When the light control SW is set to HEAD position, the signal is input to TERMINAL 15 of the body ECU No.2. Thisactivates the body ECU No.2 and turns on the HEAD LP relay. When the signal is input to TERMINAL 2 of the daytimerunning light relay (Main), the daytime running light system is deactivated and headlights LH and RH (High) go off. Atthis time, the current flows from the battery into the MAIN fuse to HEAD LP relay (Point side) to H–LP L LWR and H–LPR LWR fuse to TERMINAL 1 of the headlights LH and RH (Low) (except HID type) or TERMINAL 2 of the HEADLIGHTCONTROL ECU LH and RH (HID type) to TERMINAL 2 (except HID type) or TERMINAL 1 (HID type) to GROUND, toturn on the headlights (Low beam).
∗ Dimmer SW is set at HIGH.When the light control SW is set to HEAD position, the current flows into the daytime running light relay No.3 and No.4(Coil side) to turn on the relay as the headlights (Low beam) light up. At this time, when the dimmer SW is set to HIGHposition, the signal is input to TERMINAL 8 of the daytime running light relay (Main). This activates the DIMMER DRLNO.2 relay to flow the current from the battery into the MAIN fuse to DRL NO.2 fuse to DIMMER DRL NO.2 relay (Pointside) to headlights LH and RH (High) to daytime running light relay No.4 (Point side) to GROUND, to turn on theheadlights (High and low) and high beam indicator light at the same time.
∗ Dimmer SW is set at FLASH.When the dimmer SW is set to FLASH position, the current flows from the battery into the MAIN fuse, HEAD LP relay(Coil side) to TERMINAL 9 of the combination SW to TERMINAL 17 to GROUND in that order to turn on the HEAD LPrelay.Additionally, the signal is input to TERMINAL 8 of the daytime running light relay (Main) to activate the relay and turn onthe DIMMER DRL NO.2 relay. In the same manner as the dimmer SW set at HIGH position, the headlights (High andlow) and high beam indicator light are turned on at the same time.
HEAD LP RELAY1–2 : Closed with light control SW at HEAD position or dimmer SW at FLASH position
DIMMER DRL NO.2 RELAY1–2 : Closed with daytime running light operation
Closed with light control SW at HEAD position and dimmer SW at HIGH positionClosed with dimmer SW at FLASH position
D2 (A), D3 (B) DAYTIME RUNNING LIGHT RELAY NO.3, NO.4(A) 2–(A) 5, (B) 1–(B) 2 : Closed with light control SW at HEAD position and dimmer SW at HIGH position or
dimmer SW at FLASH position
C14 COMBINATION SW14–16 : Closed with light control SW at HEAD position
9–17 : Closed with dimmer SW at FLASH position8–17 : Closed with dimmer SW at HIGH or FLASH position
B6 (A) BODY ECU NO.29–GROUND : Approx. 12 volts
15–GROUND : Continuity with light control SW at HEAD position
SYSTEM OUTLINE
SERVICE HINTS
HEADLIGHT (w/ DAYTIME RUNNING LIGHT)
: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 A 40H6
36 (1UZ–FE) H11 38 (2JZ–GE)
C12 A 40H6
38 (2JZ–GE) J6 41
C13 B 40H7
36 (1UZ–FE) J10 41
C14 40H7
38 (2JZ–GE) J11 41
D2 A36 (1UZ–FE)
H836 (1UZ–FE) J14 41
D2 A38 (2JZ–GE)
H838 (2JZ–GE) J15 41
D3 B36 (1UZ–FE)
H936 (1UZ–FE) J17 41
D3 B38 (2JZ–GE)
H938 (2JZ–GE) J18 41
D5 40H10
36 (1UZ–FE) P4 41
D2636 (1UZ–FE)
H1038 (2JZ–GE)
D2638 (2JZ–GE) H11 36 (1UZ–FE)
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
3 24 Engine Room No.3 R/B (Engine Compartment Left)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1D 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
2F 28Cowl Wire and Passenger Side J/B (Right Kick Panel)
2G 29Cowl Wire and Passenger Side J/B (Right Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EB146 (1UZ–FE)
Cowl Wire and Relay Block Wire (Inside of the Engine Room No 3 R/B)EB148 (2JZ–GE)
Cowl Wire and Relay Block Wire (Inside of the Engine Room No.3 R/B)
IA1 50 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
IE150 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IE250 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
II252 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
II452 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
: GROUND POINTS
Code See Page Ground Points Location
EB46 (1UZ–FE)
Left FenderEB48 (2JZ–GE)
Left Fender
EE46 (1UZ–FE)
Under the ABS & TRAC & VSC ActuatorEE48 (2JZ–GE)
Under the ABS & TRAC & VSC Actuator
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E446 (1UZ–FE)
Cowl WireI1 52 Cowl Wire
E448 (2JZ–GE)
Cowl Wire
X X
X 14
98X
17
X
16
1
X 5
2 3
X
1 2
3 4X987654X21
1 2 1 2 1 2
1 2
BBAAAA A A B B B B
1
A A
A A A AA A A A AA A A A A A A A
B B B B B B B
C
CC
CC
B B C C B C C
C C C C
C12 (A) C13 (B)
C14GRAY GRAY GRAY
BLACK BROWN BLACK
BROWNJ6
ORANGE GRAY
J14 J15 J17BLUE
P4
B6 (A)
(Hint : See Page 7)(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
D2 (A) D3 (B) D5
H8 H9 H10
H11 J10 J11
J18
211 2 1 2
D26 H6 H7GRAY
9 0 X
15 X 19 X X X X
X
22X
X
XX
XX
X
15
14
1 7
X
X1 1
HEADLIGHT (w/o DAYTIME RUNNING LIGHT)
2 4
1 3
40A
MA
IN
1
2
1
1 1
II214
OFF
TAIL
HEAD
LOW
HIGH
FLASH
LIG
HT
CO
NTR
OL
SW
DIM
ME
R S
W
C C
A
A
A
IFII
2F13
2G6
10A
H–L
P L
UP
R
1
2
1
1
IA15
IE112
C
C
R–G
W–R
W–B
W–B
R–B
R–G
R–B
R–G
R–G
B–L
W–B
W–B
W–B
W–B
W–R
R–G
WP
1
2
A
C
A
JUNCTIONCONNECTOR
J14
JUNCTIONCONNECTOR
J15
COMBINATIONSW
C14
HE
AD
LP
RE
LAY
14 9 8
16 17
C C
W–B
BA
TTE
RY
W–R
HE
AD
LIG
HT
LH (
HIG
H)
H 8
I 1
W
W–B
A
JUN
CT
ION
CO
NN
EC
TO
R
J 6
R–B
A15
A9 A19
1F13 1G6 1D5
JUN
CTI
ON
CO
NN
EC
TOR
J17
11
A
A
W–B
W–B
W–B
W–B
GNDHEAD
JUN
CTI
ON
CO
NN
EC
TOR
J10
W–B
HRLY MPX2
W–B
W–B
R–G
P
R–B
W–R
B 6
BODY ECU NO. 2
A
10A
H–L
P R
UP
R
1
2
1
15A
H–L
P R
LW
R
1
2
1
15A
H–L
P L
LW
R
1
2
1
1
IA11
II410
EB EE
W–R
YR
–Y
R
R–L
1
2
* 1 : HID TYPE* 2 : EXCEPT HID TYPE
W–R
HE
AD
LIG
HT
RH
(H
IGH
)
H10
W–B
W–B
HE
AD
LIG
HT
LH (
LOW
)
HE
AD
LIG
HT
RH
(LO
W)
R
II44
IE211
A15
5ASRS–B
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1D3
A14
HIGHBEAM HEAD
CPU
B7 A22 B11
W–BP
W–B
IE18
C12
CO
MB
INA
TIO
N M
ET
ER
BA
, C
13
RR L–
BL–
B
WW
W
W
R–B
W–R
W–B
2
1
2
1
H11
H 9
1
2
1
2
P
R–B
HE
AD
LIG
HT
CO
NTR
OL
EC
U L
HH
6
H 7
HE
AD
LIG
HT
CO
NTR
OL
EC
U R
H
W–B
W–B
R–L
R–Y
( *2)
( *1)
( *1)
( *2)
( *1)
( *2)
( *1)
( *2)
( US
A)
( US
A)
HEADLIGHT (w/o DAYTIME RUNNING LIGHT)
HEAD LP RELAY1–2 : Closed with light control SW at HEAD position or dimmer SW at FLASH position
C14 COMBINATION SW14–16 : Closed with light control SW at HEAD position
8–17 : Closed with dimmer SW at HIGH or FLASH position9–17 : Closed with dimmer SW at FLASH position
: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 A 40 H7 38 (2JZ–GE)H11
36 (1UZ–FE)
C12 A 40H8
36 (1UZ–FE)H11
38 (2JZ–GE)
C13 B 40H8
38 (2JZ–GE) J6 41
C14 40H9
36 (1UZ–FE) J10 41
H636 (1UZ–FE)
H938 (2JZ–GE) J14 41
H638 (2JZ–GE)
H1036 (1UZ–FE) J15 41
H7 36 (1UZ–FE)H10
38 (2JZ–GE) J17 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1D 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26Cowl Wire and Driver Side J/B (Left Kick Panel)
1G 27Cowl Wire and Driver Side J/B (Left Kick Panel)
2F 28Cowl Wire and Passenger Side J/B (Right Kick Panel)
2G 29Cowl Wire and Passenger Side J/B (Right Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IA1 50 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
IE150 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IE250 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
II252 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
II452 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
: GROUND POINTS
Code See Page Ground Points Location
EB46 (1UZ–FE)
Left FenderEB48 (2JZ–GE)
Left Fender
EE46 (1UZ–FE)
Under the ABS & TRAC & VSC ActuatorEE48 (2JZ–GE)
Under the ABS & TRAC & VSC Actuator
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I1 52 Cowl Wire
SERVICE HINTS
X X
X 14
98X
17
X
16
1 2 1 21 2 1 2
1 2 1 2 A A
A A A AA A A A AA A A A A A A A
C C C CC
CC
CC
AAAA A A
9 X
15 X 19 X X X X
X
22X
X
XX
XX
X
15
14
B6 (A) C12 (A) C13 (B)
C14 H6 H7BLACK BROWN
BLACK BROWNJ6
ORANGE
J15J14 J17
(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
H8 H9
H10 H11 J10
7
X
X1 1
HEADLIGHT BEAM LEVEL CONTROL
15AECU–IG
1H5
10AGAUGE
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1D4
B
B
A1 A3 A2B8 B4
A8 A7 A6 A5 B1 B2 B3 A4
IE23
II22 II211 II21 II210II23
EB
B–R
R–L
B–R
B–R
B–R
B–R B–L
L–Y
B–L
R–W
P–G
G–O
R–B
G–Y
L–Y
L–W
W–B
B–R
R–W
P–G
G–O
R–B
B–R
JUN
CTI
ON
CO
NN
EC
TOR
J 7
HEADLIGHT BEAM LEVELCONTROL MOTOR
H 3HEIGHT CONTROLSENSOR (FRONT)
H15
ABS & TRAC& VSC ECU
A21
RH1 RH2 RH3 RH4 SBF SHF SGF
IG LHB1
SHGSHFLSHB
FLO
3
5 4 1 6 3 1 2 4
HE
AD
LIG
HT
BE
AM
LE
VE
LC
ON
TRO
L W
AR
NIN
G L
IGH
T[C
OM
B.
ME
TE
R]
I 1 I 1
C12
H 1
HE
AD
LIG
HT
BE
AM
LE
VE
LC
ON
TRO
L E
CU
BA
, H
2
18
1
B5 B6 B7
L–B
G–B
L–O
HEIGHT CONTROLSENSOR (REAR)
H22
SBR SHR SGR
SHGSHRLSHB
3 2 1
IC32 IC310 IC311
L–B
G–B
L–O
4
LH1 LH2
1 6
LH3 LH4
3 2
LHB1
HEADLIGHT BEAM LEVELCONTROL MOTOR
HDLP
E1
SPDLWNG
R–G
40AMAIN
3 1
4 2
1 1
II214
C
C
OFF
TAIL
HEAD
A
A
A
IF
R–G
R–B
R–G
R–G
R–B
W–B
W–B
R–G
JUN
CTI
ON
CO
NN
EC
TOR
J10
JUN
CT
ION
CO
NN
EC
TO
R
J 6
2
16
C
1
14
JUN
CT
ION
CO
NN
EC
TOR
J14
HEAD LPRELAY
HRLY
HEAD
LIGHT CONTROLSW [COMB. SW]
C14
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
A9
A15
II
1G6 1F13
B 6
BODY ECU NO. 2
A
11
A
A
A
GND
W–B
W–B
W–B
W–B
JUNCTIONCONNECTOR
J17
HEADLIGHT BEAM LEVEL CONTROL
This system calculates changes in the illuminating angle from changes in the vehicle height and axle distance based on theinformation on the vehicle height detected by the height sensors installed at the front and rear of the vehicle and informationon the vehicle speed and acceleration output from the VSC system to reversely operate the reflector by the obtainedilluminating angle through actuators in order to always keep the beam axis constant.If an error occurs in this system, the headlight beam level control warning light in the combination meter lights up to warn thedriver.
H1 (A), H2 (B) HEADLIGHT BEAM LEVEL CONTROL ECU(A) 1, (B) 8–GROUND : Approx. 12 volts with ignition SW at ON or ST position(A) 4–GROUND : Always continuity(B) 4–GROUND : Approx. 12 volts with light control SW at HEAD position
C14 LIGHT CONTROL SW [COMB. SW]14–16 : Closed with light control SW at HEAD position
: PARTS LOCATION
Code See Page Code See Page Code See Page
A21 40H2 B
36 (1UZ–FE) H22 42
B6 A 40H2 B
38 (2JZ–GE) J6 41
C12 40H3
36 (1UZ–FE) J7 41
C14 40H3
38 (2JZ–GE) J10 41
H1 A36 (1UZ–FE)
H1536 (1UZ–FE) J14 41
H1 A38 (2JZ–GE)
H1538 (2JZ–GE) J17 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1D 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IC3 50 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
IE2 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
II2 52 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
: GROUND POINTS
Code See Page Ground Points Location
EB46 (1UZ–FE)
Left FenderEB48 (2JZ–GE)
Left Fender
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I1 52 Cowl Wire
SYSTEM OUTLINE
SERVICE HINTS
3
X X X
X
X
X
X
X
X X
X 14
X
X
16
1 2 3 4
5 6 7 8
1 2 3 4
5 6 7 8
1 X 34 5 6
2 14 X
3 2 1 B B B B B B B
A A
A A A A
A A A A AA A A A A A A A C
CC
CC
X
X
X
XX
XX
18X
1
9 X
15 X X X X X
AAAA A A
A21 B6 (A)
C14
C12
GRAY BLACK BLACK
DARK GRAYH22
GRAYJ6
ORANGEJ14 J17
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
H1 (A) H2 (B) H3
H15 J7
J10
HEADLIGHT CLEANER
20AWASHER
1F3
30AH–LPCLN
1
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
A
A
IA16
EB
JUNCTIONCONNECTOR
J12
L–OL
L–OL
2
1
M
2
1
E 4
1
5
2
3
4
HEADLIGHT CLEANER CONTROL RELAYH 4
HEADLIGHTCLEANERMOTOR
H 5
24
HEADLIGHTCLEANER SW
H19
L–O
L
B
W–B
W–B
W–B
L–B
R–B
W–BW–B
R–BL–B
B
IG
PB
MTR
E
H
40AMAIN
3 1
4 2
1
II214
C
C
OFF
TAIL
HEAD
A
A
IIIF
A
2F13
2G6
JUNCTIONCONNECTOR
J 6
JUNCTIONCONNECTOR
J14
LIGHT CONTROLSW [COMB. SW]
C14
R–G
R–G
R–G
R–G
R–B
W–B
W–B
W–B
W–B
2
1
C
A
A
HEAD LPRELAY
14
16
I 6R–G
R–G
R–G
9
1
2
3
2
DAYTIME RUNNINGLIGHT RELAY(MAIN)
D 5
DIODE (DAYTIMERUNNING LIGHT)
D 7R–B
W–B W–B
R–Y
R–Y
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
HRLY
HEAD
H
DRL
JUN
CT
ION
CO
NN
EC
TOR
J10
JUN
CT
ION
CO
NN
EC
TOR
J17
A9
A15
1G6 1F13
B 6
BODY ECU NO. 2
A
A
GND
W–B
W–B
W–B
W–B
A
A
11
HEADLIGHT CLEANER
H4 HEADLIGHT CLEANER CONTROL RELAY5–2 : Closed with ignition SW at ON position, light control SW at HEAD position and headlight cleaner SW on
: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 A 40 H4 38 (2JZ–GE) J10 41
C14 40H5
36 (1UZ–FE) J12 41
D5 40H5
38 (2JZ–GE) J14 41
D7 40 H19 40 J17 41
H4 36 (1UZ–FE) J6 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1F 26Cowl Wire and Driver Side J/B (Left Kick Panel)
1G 27Cowl Wire and Driver Side J/B (Left Kick Panel)
2F 28Cowl Wire and Passenger Side J/B (Right Kick Panel)
2G 29Cowl Wire and Passenger Side J/B (Right Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IA1 50 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
II2 52 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
: GROUND POINTS
Code See Page Ground Points Location
EB46 (1UZ–FE)
Left FenderEB48 (2JZ–GE)
Left Fender
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E446 (1UZ–FE)
Cowl WireI 6 52 Cowl Wire
E448 (2JZ–GE)
Cowl Wire
SERVICE HINTS
X X
X 14
X
X
16
X9
X21 2 3
1
4 5
2 3
X
1 2 X 2
X 4
9 X
15 X X X X X
A A
A A A AA A A A AA A A A A A A A
C
CC
CC
AAA A
AAAA A A
B6 (A) C14GRAY
D7
BLACK BLACKH19 J6
ORANGE
GRAYJ14 J17
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
D5
H4 H5 J10
J12
HORN
10AHORN
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
2
1
2 3
1 5
2 2
2 2
6
1 1
A
AA
B 5BODY ECUNO. 1
H17HORN RH HORN LH
H16
G–B
B
G–B
B
G–B
B
G
G
HORNRELAY
II216
JUN
CTI
ON
CO
NN
EC
TOR
J18
G–B
1
HORN SW[COMB. SW]
C16
HORN
HORN RELAY5–3 : Closed horn SW on
: PARTS LOCATION
Code See Page Code See Page Code See Page
B5 40 H16 38 (2JZ–GE) J18 41
C16 40H17
36 (1UZ–FE)
H16 36 (1UZ–FE)H17
38 (2JZ–GE)
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
2 23 Engine Room No.2 R/B (Engine Compartment Left)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
II2 52 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
6 X X 6
1 1
1 X X
X
A
A A
B5(1UZ–FE) BLACK (2JZ–GE) BLACK BLACK BLACK
BLUE
(Hint : See Page 7)
C16 C16 H16 H17
J18
SERVICE HINTS
ILLUMINATION
120A
ALT
1
2
1
1
2 3
1 5
1K1
1H2
7. 5APANEL
1E8
OFF
TAIL
HEAD
A2
1H13
6
IF
JUN
CT
ION
CO
NN
EC
TO
R
J 6
A
1
2
AS
HTR
AY
ILLU
MIN
ATI
ON
RE
AR
LH
A33
BJ
A
15
AJUN
CTI
ON
CO
NN
EC
TOR
J10
LIGHT CONTROLSW [COMB. SW]
C14 16
BODY ECUNO. 2
B 6 A
G–R
LG
R–Y
W–B
W–B
W–B
B–L
WW
TAIL
TRLY
BA
TTE
RY
W–B
TAILRELAY
BA19
BA11
LGW
–B
16
25
RE
AR
DO
OR
LH
EC
UR
12
BB1
9
1
1
2
AS
HTR
AY
ILLU
MIN
ATI
ON
RE
AR
RH
A34
BL
W–B
BB1
W–B
LGW
–B
16
25
RE
AR
DO
OR
RH
EC
UR
13
IL17
I 1
1
2
I 1
4
2
1H7
1C2
LG
LG
LG
LGLGLG
LG LG LG
W–G
W–G
A/T
SH
IFT
PO
SIT
ION
ILLU
MIN
ATI
ON
A18
ELE
CTR
ON
ICA
LLY
CO
NT
RO
LLE
DT
RA
NS
MIS
SIO
N P
ATT
ER
N S
ELE
CT
SW
E12
JUNCTION CONNECTORJ16
A AWHE1 WHE1
GND GND
1G6 1F13 1C6 1D5
II
JUN
CTI
ON
CO
NN
EC
TOR
J17
A
A
A
11
GND
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
I 1
4
3
4
2
I 1LGLG
LG LG
W–G
W–G
VS
C O
FF S
WV
6
CIG
AR
ETT
E L
IGH
TER
C10
A A
I 1
6
5
LGW
–G
R 6
RE
MO
TE C
ON
TRO
L M
IRR
OR
SW
A
SE
AT
HE
ATE
R S
W
A
S 3
W–G
LG
5
1 6
5
LGW
–G
H19
A
HE
AD
LIG
HT
CLE
AN
ER
SW
IE213
1F9
5 4 6
A A
E E E 4 3
9
5
EJUNCTION CONNECTORJ13
RHEOSTATR 7
CO
MB
INA
TIO
N M
ETE
RC
12
JUNCTION CONNECTORJ16
W G
W–B
W–G
W–G
W–G
W–G
W–B W–B
LG
LG
LG
LG
LG
RV T E
(CA
NA
DA
)( C
AN
AD
A)
1C
5
CPU
22
W–B
W–B
W–B
W–B
2
1
I 1LG
LGW
–G
M 7
MIR
RO
R R
ETR
AC
TIO
N S
W
A
ILLUMINATION
3G4
3H4
5
15
3C4
3
2
3E4
13
20
3D4 3F4
1
2
3H2
3G2
3C2 3E2 3D2 3F5
3G5
A5 (*2)D5 (*1)
D6 (*1)
A6 (*2)
2
1
GLOVE BOXLIGHT SW
G 4
MU
LTI–
DIS
PLA
YM
3
HA
ZAR
D S
WH
18
A/C
CO
NT
RO
L A
SS
EM
BLY
A13
GLO
VE
BO
X L
IGH
TG
3
W–B W
–BW
–BR
–WLGLGLGLGLG
W–B
W–B
W–B
W–B
W–B
LG
RA
DIO
AN
D P
LAY
ER
* 1 : NAKAMICHI* 2 : EXCEPT NAKAMICHI
DR
2A
, R
5
W–B
TAIL RELAY5–3 : Closed with light control SW at TAIL or HEAD position
C14 LIGHT CONTROL SW [COMB. SW]15–16 : Closed with light control SW at TAIL or HEAD position
: PARTS LOCATION
Code See Page Code See Page Code See Page
A13 40 G4 40 R2 A 41
A18 40 H18 40 R5 D 41
A33 42 H19 40 R6 41
A34 42 J6 41 R7 41
B6 A 40 J10 41 R12 43
C10 40 J13 41 R13 43
C12 40 J16 41 S3 41
C14 40 J17 41 V6 41
E12 40 M3 41
G3 40 M7 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1C26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1D26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1E 26 Floor No.2 Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
1K 26 Engine Room Main Wire and Driver Side J/B (Left Kick Panel)
3C30
3D30
3EInstrument Panel Wire and Instrument Panel J/B (Instrument Panel Reinforcement Center)
3F31
Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Reinforcement Center)
3G31
3H
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IE2 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IL1 52 Floor No.1 Wire and Cowl Wire (Right Kick Panel)
BA1 54 Rear Door LH Wire and Floor No.2 Wire (Under the Center Pillar LH)
BB1 54 Rear Door RH Wire and Floor No.1 Wire (Under the Center Pillar RH)
: GROUND POINTS
Code See Page Ground Points Location
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
BJ 54 Rear Floor Partition Panel LH
BL 54 Rear Floor Partition Panel RH
SERVICE HINTS
ILLUMINATION
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I1 52 Cowl Wire
X 5 6
X X
X
X 13 20
1 21 2 1 2
2
4
X
22X
X9
XX
XX
X
65
4
X X
X
X
15
X
16
2 4 X X
1 21 2 X 2
X
3 X
X X
X
X 5 6
X 5
X X X X X X 15
X
5 6 X X
2 X
X X X X X
A A
A A A A
A A A A AA A A A A A A A
A A A AA A A A A A A
AAAA A A
EE
EE
EE
E
A13 A18BLACK BLACK
B6 (A)
BLACKC12 C14
BLACK
G3BLACK BLACK
H19 J6
ORANGEJ13 J16 J17
BLUE (NAKAMICHI) ORANGE(Except NAKAMICHI)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
A33 A34
C10 E12
G4 H18
J10
M3 R2 (A) R5 (D)
X X
16 X 25X X X X 5 6 X
X 3 4 5 X X
R12BLACK
R7R6
1 2
M7BLUE
1
5 3 4 X X
16 25
R13 S3 V6
INTERIOR LIGHT
15AECU–IG
1E2 1H5 1H6 1E1
A19A1
1H11
II
1F13 1G6
IF
A
A
JUN
CT
ION
CO
NN
EC
TOR
J17
JUN
CT
ION
CO
NN
EC
TO
R
J 6
W–B
W–B
W–B
A
1 8 9
11
GND
IG BECU MPX2GSWOMPX1
A13
ILE
I 1 I 1 I 1
IJ217
2
1
1
2
2
1
IJ216 IC18
1
2
I 1 I 1 I 1
2D9
2F4
GG
G G G
GG
GG
L–Y
L–Y
L–Y
L–Y
L–Y
L–Y
L–Y L–Y L–Y
G
ST
EP
LIG
HT
RH
S 6
ST
EP
LIG
HT
LHS
5
IGN
ITIO
N K
EY
CY
LIN
DE
R L
IGH
TI2
1 LUG
GA
GE
CO
MP
AR
TME
NT
LIG
HT
L 7
R
BODY ECU NO. 2
10ADOME
2H12 2D7
B 2
G
1
3 2
PE
RS
ON
AL
LIG
HT
P 7
2
1N
OIS
E F
ILT
ER
( STO
P L
IGH
T)
N 6
2
BK
JUNCTIONCONNECTOR
J20
W–B
W–B
R
W–B
R
B–R
B–R
G–W
G–W
L–O
O
W
L–Y
L–Y
L–Y
L–Y
WOL–O
G–W
G–WB–R
B–R
L–Y
L–Y
A
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
B 6 A
DO
OR
ON
OFF
2
1
GR
LUG
GA
GE
CO
MP
AR
TM
EN
TD
OO
R C
OU
RTE
SY
SW
L 5
DIO
DE
(LU
GG
AG
E C
OM
PA
RTM
EN
TD
OO
R O
PE
N D
ET
EC
TIO
N)
D 8
2E5
L–Y
1
3 2
INTE
RIO
R L
IGH
T R
EA
R R
HI2
5
1
3 2
INTE
RIO
R L
IGH
T R
EA
R L
HI2
4
B 2 B 2
2
1
2
1
B 2
B 2 B 2 B 2 B 2
2D22D4
2H6 2H4L–Y
R–B
R–G
W–B
IJ1
3
R–G
W–B
R–B
W–B
W–B
W–B
W–B W–B W–B W–B
R–B
R–G
VA
NIT
Y L
IGH
T LH
V 8
VA
NIT
Y L
IGH
T R
HV
9
IE18 IE117
B–R
B–R
G–W
G–W
L–O
O
W
L–Y
IJ110
6 2
5
7 8
16
W WLW
L–Y
L–Y
L–Y
L–Y
L–YL–Y
LL–
R
W( *1)
( *2)
TILT
AN
DTE
LES
CO
PIC
EC
U
T 5
MU
LTI–
DIS
PLA
YM
3
WW
W
( *1)
(* 2)
B–R
B–R
G–W
G–W
L–O
O
COMBINATIONMETER
C13
* 2 : W/O LEXUS NAVIGATION SYSTEM* 1 : W/ LEXUS NAVIGATION SYSTEM
L–Y
MPX1 MPX2
MPX1MPX2
MPX–
MPX+
A/C
CO
NTR
OL
AS
SE
MB
LY
A13
L
211
INTERIOR LIGHT
10AMPX–B
1
2B8 2E12G4
A3
GSW
8
I 6
A15
15ARADIONO. 2
1H10
ACC
2D5 2G6 2F13
11
D28 (*4)F11 (*3)
F24 (*3)
D27 (*4)
4
BECU
MPX1 GND BSUB
II IF
A
A
A
JUN
CT
ION
CO
NN
EC
TOR
J10
A5 A6 A4
IL36 IL318 IL317
RCO RDA RSSI MPX2
LG–R P LG
L–O
LG–R P LG
3 4 5
17
BM
W–B
W–B
W–B
W
A
W–B
W–B
W–B
L–Y
R–B
R–G
W–B
EN
GIN
E C
ON
TRO
LM
OD
ULE
E 5
D
20A
P F
R D
OO
R
2F2
L–B
L–O
R–B
R–G
B–R
G–W
L–O
G–W
G–W
D
D
JUNCTIONCONNECTOR
J13
GR
FROM POWER SOURCESYSTEM (SEE PAGE 60)
2E22F11
BB B
B
B
BJUNCTIONCONNECTOR
J 7
JUNCTIONCONNECTOR
J15
B–R
B–R
G–W
G–W
L–O
O
G–W
G–W
G–W
IG
1
B–R
B–R
B–R
B–R
B–R
GR
G–W
B–R B–R
B–R
B–R
L–B
BODY ECU NO. 1
B 5 A
L–Y
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
2
F,
E 7
L
WIR
ELE
SS
DO
OR
LOC
K E
CU
W 5
A19
2H11
9
1
MPX1
MPX2
JUNCTIONCONNECTOR
J 6JUNCTIONCONNECTOR
J22
B–R
G–W
L–O
G–W
G–W
B–R
B–R
B–R
C9 C2 C3 A1 C18
IB16 IB113 IB11 IB15 IB17
20AD FR DOOR
1F2
I 6
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
A2 A3
C1 A18 B15 B14 A12C12B15 B14
IK15 IK17 IK14IB14
IK113 IK11 IK16
A9
1
2
1
2
DO
OR
CO
UR
TES
Y S
WFR
ON
T LH
D13
DO
OR
CO
UR
TES
Y S
WFR
ON
T R
H
D14
CTY CTYE GND
MPX1 SIG CPUB BDR MPX2 SIG CPUB MPX1
BDR MPX2 CTY CTYE GND
L–O
B–R
G–W L–
B O B–R
G–W O
B–R
G–W L–
B
B–R
B–R
O
G–W
O
G–W
B–R
IIIF
A A
A A
A
JUNCTIONCONNECTOR
J10
JUN
CT
ION
CO
NN
EC
TOR
J17
JUNCTIONCONNECTOR
J 6
L–B
L–O
L–B
L–O
R–B
R–G
R–B
R–G
DRIVER DOOR ECU
BD22 D23A
FRONT PASSENGER DOOR ECU
BF11 F12ACD24 CF13
IC3
15O
* 4 : 2JZ–GE* 3 : 1UZ–FE
G–W
, , , ,
R–G
W–B
W–B
L–B
L–O
R–G
W–B
W–B
W–B
W–B
W–B
W–B
W–B
2
1
A10 A12
R–Y
R–W
W–B
R–W
DO
OR
CO
UR
TE
SY
LIG
HT
FRO
NT
LH
D 9
CTYB CYL
2
1
C10 C12
R–Y
W–B
R–W
R–W
DO
OR
CO
UR
TE
SY
LIG
HT
FRO
NT
RH
D10
CTYB CYL
INTERIOR LIGHT
B–R
O
G–W
O
G–W
B–R
R–B
R–G
BA18 BA16 BA111 BA12
20AD RR DOOR
1E6
A
A
5 15 9 14 4
JUNCTIONCONNECTOR
J 8
BB111 BB16 BB13 BB12 BB18
9 15 4 14 5
12 8 18 25 12 8 18 2520
BA19 BB19BB110BB14BA14
IC113 IL35
1
2
1
2
BJ BLBM
A
JUNCTIONCONNECTOR
J22
DO
OR
CO
UR
TES
Y S
WR
EA
R L
H
D15
DO
OR
CO
UR
TES
Y S
WR
EA
R R
H
D16
IL116 IL315
20AP RR DOOR
2E6
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
MPX1 CPUB SIG BDR MPX2 SIG CPUB MPX2 BDR MPX1
RRLP CTY CTYE GND RRLP CTY CTYE GNDSEL1
R–B
R–W
W–B
W–B
R–G
R–Y
W–B
W–B
W–B
R–B
R–G
W–B
W–B
W–B
O
G–W B–R
L–R
L–O
B–R
G–W O L–
R
L–O
R–G
W–B
O L–R
L–O
B–R L–R
L–O
L–O
B–R
G–W
O
L–O
REAR DOOR RH ECUR13
REAR DOOR LH ECUR12
2
1
2 7
L–W R
R
W–B
DO
OR
CO
UR
TES
Y L
IGH
TR
EA
R L
H
D11
CTYB CYL
2
1
2 7
L–W
W–B
R–W
R–W
DO
OR
CO
UR
TES
Y L
IGH
TR
EA
R R
H
D12
CTYB CYL
L–O
L–O
IC22
BC110 BC13
BA13
11 10
MPX2 MPX1
POWER SEAT ECUP19
O L–O
L–Y
L–O
( *5)
( *5)
( *5)
( *5)
L–O
(*6)
* 6 : W/O DRIVING POSITION MEMORY* 5 : W/ DRIVING POSITION MEMORY
INTERIOR LIGHT
ILLUMINATED ENTRY SYSTEMThis system provides various functions listed below through communication control of the body ECU and door ECU etc.∗ Each relevant light lights up if any door is opened.∗ If all the doors are closed with the ignition SW set at OFF after any door is opened, each light lights up for 15 sec., and
then fades out when the time set on the timer has elapsed.∗ If any door is unlocked from the driver or passenger side or if any door is unlocked with the unlock SW on the transmitter
after all the doors are closed and locked, each light lights up for 15 sec., and then fades out when the time set on the timerhas elapsed.
∗ If the ignition SW is turned to the ACC or ON position while each light is being lit by the timer, the timer lighting is cancelledand the light fades out.
∗ If all the doors are closed and locked from the driver or passenger side or with the lock SW on the transmitter while eachlight is being lit, the timer lighting is cancelled and the light fades out.
∗ If all the doors are closed with the ignition SW set at ACC or ON after any door is opened, the timer lighting is cancelledand the light fades out.
∗ Each light above is the interior light, ignition key cylinder light, and step lights LH and RH.
D13, D14, D15, D16 DOOR COURTESY SW FRONT LH, RH, REAR LH, RH1–2 : Closed with door open
L5 LUGGAGE COMPARTMENT DOOR COURTESY SW2–GROUND : Luggage compartment door open
W5 WIRELESS DOOR LOCK ECU7–GROUND : Always approx. 12 volts1–GROUND : Always continuity
D23 (B) DRIVER DOOR ECU15–14 : Continuity with driver door open
F12 (B) FRONT PASSENGER DOOR ECU15–14 : Continuity with front passenger door open
R12 REAR DOOR LH ECU8–18 : Continuity with rear LH door open
R13 REAR DOOR RH ECU8–18 : Continuity with rear RH door open
: PARTS LOCATION
Code See Page Code See Page Code See Page
A13 40 E5 D 38 (2JZ–GE) J22 42
B5 A 40 E7 F 36 (1UZ–FE) L5 43
B6 A 40 F11 A 42 L7 43
C13 40 F12 B 42 M3 41
D8 42 F13 C 42 N6 43
D9 42 I21 41 P7 43
D10 42 I24 42 P19 44
D11 42 I25 42 R12 43
D12 42 J6 41 R13 43
D13 42 J7 41 S5 41
D14 42 J8 41 S6 41
D15 42 J10 41 T5 41
D16 42 J13 41 V8 43
D22 A 42 J15 41 V9 43
D23 B 42 J17 41 W5 43
D24 C 42 J20 42
SYSTEM OUTLINE
SERVICE HINTS
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1E 26 Floor No.2 Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
2B 28 Engine Room Main Wire and Passenger Side J/B (Right Kick Panel)
2D 28 Roof Wire and Passenger Side J/B (Right Kick Panel)
2E 28 Floor No.1 Wire and Passenger Side J/B (Right Kick Panel)
2F 28
2G29
Cowl Wire and Passenger Side J/B (Right Kick Panel)
2H29
g ( g )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IB1 50 Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC1
IC2 50 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
IC3
( )
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IJ152 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IJ252 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IK1 52 Front Door RH Wire and Cowl Wire (Right Kick Panel)
IL152 Floor No 1 Wire and Cowl Wire (Right Kick Panel)
IL352 Floor No.1 Wire and Cowl Wire (Right Kick Panel)
BA1 54 Rear Door LH Wire and Floor No.2 Wire (Under the Center Pillar LH)
BB1 54 Rear Door RH Wire and Floor No.1 Wire (Under the Center Pillar RH)
BC1 56 Floor No.2 Wire and Front Seat LH Wire (Under the Driver’s Seat)
: GROUND POINTS
Code See Page Ground Points Location
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
BJ 54 Rear Floor Partition Panel LH
BK 54 Quarter Panel LH
BL 54 Rear Floor Partition Panel RH
BM 54 Quarter Panel RH
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I152 Cowl Wire
B2 54 Roof Wire
I652 Cowl Wire
INTERIOR LIGHT
1 X 13
X 19 X X X X
3 4 5 6 X X
X 15 19
1 2 1 2 1 2 1 2 1 2
1
10 X
12
14 15
2 3 X X 9
X 12 X 18
X X X X
X X X X
X X X 28
X
27
5 X X
X
X 16
X X X X X X 11 X X
24 2 3 X X X 9
X 12 X X X 18
1 2 1 2 1 2 1 2
A13 B5 (A) B6 (A)
C13
GRAY GRAY
GRAY GRAY GRAY
(2JZ–GE)
GRAYD9 D10 D11 D12
GRAY GRAY
(1UZ–FE) GRAY
D8
D13 D14 D15 D16
D22 (A) D23 (B) D24 (C)
E5 (D) E7 (F) F11 (A)
2 X
X1 1
1
10 X
12
1 2123X
123X
A A
A A A A
A A A A B B B B B B B
A A A A AA A A A A A A A
D
DD
D
B
B B B B
AAAA A A
1 2 2
A A
A A A A
A A
A A A A 2 X
X 8 X X X X X
1 2
123X
2 X 4 5 X 7 8 9 12
14 15 18 20 25
6 7 X
X X
1011 X X 2 X 4 5 X 7 8 9 12
14 15 18 X 25
1 2 1 2
X X X X
X X X 14 15
GRAYI21 I24 I25
J6BLACKGRAY ORANGE
J13 J15 J17 J20
J22GRAYBLACK BLUE BLUE
P7 R12
R13GRAY
P19
BLACK BLACK
(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
F13 (C)
J7 J8 J10
L5 L7 M3 N6
S5 S6 T5
GRAYF12 (B)
INTERIOR LIGHT
1 2 1 2 1 X 3 4 5 X 7
V8 V9 W5
MEMO
KEY REMINDER AND SEAT BELT WARNING
15AECU–IG
15ARADIONO. 2
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1C1
10AGAUGE
1D4
3
5
IJ26
IE118
1H5 1H6 1D2
A19
MPX2
A1
GSWO
1H11
A5
KSW
1E3
1F13 1G6
II IF BJ
BC18
4
1
1
2
A
A
A
A
A
A
A
A
A BC112A
JUN
CTI
ON
CO
NN
EC
TOR
J17
JUN
CTI
ON
CO
NN
EC
TOR
J10
UN
LOC
K W
AR
NIN
GS
W
U 1
JUN
CTI
ON
CO
NN
EC
TO
R
J 9
JUN
CT
ION
CO
NN
EC
TO
R
J 6
981
11 7 SE
AT
BE
LT
IE18 IE117
B11 B2 A13 A1
B1 A22 B8
IE111
PA
SS
EN
GE
R S
EA
T B
ELT
WA
RN
ING
LIG
HT
[CLO
CK
]
C11
JUNCTIONCONNECTOR
J23
BUCKLESW LH
B 7
B–R
G–W
L–O
O
L
B–R
G–W
G–W L–O O W
GR
W W
G–W R–L
GR
W–B
W–B
W–B
W–B
W–B
Y B–L
W–B
W–B
W–B
L–R
YY
Y
W–B O
W–B
IG
B 6
BODY ECU NO. 2
A
C12
COMBINATIONMETER
BA , C13
Y
B–L
3G3
3B3
GR
MPX1BECU
GND DBKL
CPUA
YF
RO
M E
NG
INE
CO
NTR
OL
MO
DU
LE
1D5
W–B
A
W–B
W–B
1H10
GRGR
10AMPX–B
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
D
D
B
B
2F112B82G4
A15
ACC
A3
GSW
20A
P F
R D
OO
R
FROM POWERSOURCE SYSTEM(SEE PAGE 60)
D28 (*4)F11 (*3)
D27 (*4)F24 (*3)
IJ110
IJ13
MU
LTI–
DIS
PLA
YM
3
B B
IL12
BD16
A18
PBKL
2G6 2F13
II IF BL
4
1
A
A
A
B
B
BD112
I 6
2
1
TILT
AN
DTE
LES
CO
PIC
EC
U
T 5
SE
AT
BE
LT W
AR
NIN
GO
CC
UP
AN
T D
ETE
CTI
ON
SE
NS
OR
S18
1
18
6
8
16 5
2
11 4
2
7
B
JUNCTIONCONNECTOR
J 7
JUNCTIONCONNECTOR
J13JUNCTIONCONNECTOR
J15
BUCKLE SW RHB 8
JUNCTIONCONNECTOR
J24
JUNCTIONCONNECTOR
J10
JUNCTIONCONNECTOR
J 6
A/C CONTROL ASSEMBLYA13
B–R
G–W
L–O
O
L
B–R
G–W
L–O
B–O
B–O
W
W
LL
W–B
W–B
B–L
W–B
W–B
W–B
W–B
GR B–R
G–W
G–W
B–RGR
W ( *1)
L–R
( *1)
W ( *2)
O
B–L
B–L
A
BODY ECU NO. 1
B 5
* 1 : W/ LEXUS NAVIGATION SYSTEM* 2 : W/O LEXUS NAVIGATION SYSTEM* 3 : 1UZ–FE* 4 : 2JZ–GE
E 5
EN
GIN
E C
ON
TRO
LM
OD
ULE
FD
, E
7
MPX1 BECU IG
BSUBGND
A19
MPX2
MPX1
MPX2
MPX1
MPX1
MPX2
MPX– MPX+
GR
G–W
B–R
G–W
KEY REMINDER AND SEAT BELT WARNING
20AD FRDOOR
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1F2
IB15IB113IB11IB16
A1
BDR
C2
SIG
C3
CPUB
C9
MPX1
C12
GND
B15
CTY
12
IF
A
A
A
IB14
B14
CTYE
B–R
G–W
L–O
L–O
G–W B–R L–B
L–B
R–G
W–B
W–B
W–B
W–B
JUNCTIONCONNECTOR
J 6
JUNCTIONCONNECTOR
J10
DOOR COURTESY SWFRONT LH
D13
D22
DRIVER DOOR ECU
BA , D23 C, D24
1. SEAT BELT WARNING SYSTEMWhen the ignition SW is turned to the ON position, the signal is input to the body ECU and door ECU. At this time, todetermine whether or not the driver fastens the seat belt, the signal from the buckle SW LH is input to TERMINAL DBKL ofthe body ECU No.2. If the driver does not fasten the seat belt, the seat belt warning light in the combination meter flashesand the alarm buzzer goes on, in response to the communication control of the body ECU and door ECU etc.Additionally, the sensor (Seat belt warning occupant detection sensor) installed on the front passenger seat detects thepassenger and determines whether or not the passenger fastens the seat belt.If the passenger does not fasten the seat belt, the signals from the seat sensor and buckle SW RH are input to TERMINALPBKL of the body ECU No.1 and through communication control of the body ECU and door ECU etc. the passenger seatbelt warning light in the clock is flashed.
2. KEY REMINDER SYSTEMIf the driver door is opened with the ignition SW set at the ACC or OFF position and the ignition key remained inserted intothe key cylinder (The unlock warning SW is on), the signal from the unlock warning SW is input to TERMINAL KSW of thebody ECU No.2 and the signal from the door courtesy SW front LH is input to TERMINAL CTY of driver door ECU. As aresult, through communication control of the body ECU and door ECU etc. the buzzer in the combination meter goes on towarn the driver that the ignition key is still inserted.
S18 SEAT BELT WARNING OCCUPANT DETECTION SENSOR1–2 : Closed with passenger sit on the front passenger seat.
: PARTS LOCATION
Code See Page Code See Page Code See Page
A13 40 D22 A 42 J13 41
B5 A 40 D23 B 42 J15 41
B6 A 40 D24 C 42 J17 41
B7 44 E5 D 38 (2JZ–GE) J23 44
B8 44 E7 F 36 (1UZ–FE) J24 44
C11 40 J6 41 M3 41
C12 A 40 J7 41 S18 44
C13 B 40 J9 41 T5 41
D13 42 J10 41 U1 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1C26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1D26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1E 26 Floor No.2 Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
2B 28 Engine Room Main Wire and Passenger Side J/B (Right Kick Panel)
2F 28Cowl Wire and Passenger Side J/B (Right Kick Panel)
2G 29Cowl Wire and Passenger Side J/B (Right Kick Panel)
3B 30Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Reinforcement Center)
3G 31Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Reinforcement Center)
SYSTEM OUTLINE
SERVICE HINTS
KEY REMINDER AND SEAT BELT WARNING
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IB1 50 Front Door LH Wire and Cowl Wire (Left Kick Panel)
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IJ152 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IJ252 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IL1 52 Floor No.1 Wire and Cowl Wire (Right Kick Panel)
BC1 56 Floor No.2 Wire and Front Seat LH Wire (Under the Driver’s Seat)
BD1 56 Floor No.1 Wire and Front Seat RH Wire (Under the Front Passenger’s Seat)
: GROUND POINTS
Code See Page Ground Points Location
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
BJ 54 Rear Floor Partition Panel LH
BL 54 Rear Floor Partition Panel RH
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I6 52 Cowl Wire
1
4 X1
4 X
X 3 5 X X
1
X
X
22X
X
XX
XX
X
13
1
5 X X
X
X 16
1 5 X
X 19 X X X X
14 15
3 X X
X 15 1819
A13 B5 (A) B6 (A)
B7 B8 C11 C12 (A)
C13 (B)GRAY GRAYGRAY
D13 D22 (A) D23 (B)
1 2
21 8 X
X11
1 2 2
1
A A A A AA A A A A A A A
D
DD
D
B
B B B B
AAAA A A
BB
B B B B
2 X
X 8 X X X X X
6 7 X
XX
XA
A A
(2JZ–GE) ORANGEJ13
J15 J17 J23
BLUE GREEN GRAYU1
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7) (Hint : See Page 7)
2 3 X X 9
X 12 X
X X X X
X X X X
X X X 28
X
27
X X X X X X 11 X X
24
GRAY (2JZ–GE) (1UZ–FE)
A
A A
B B B B B B B
A A
A A A A
GRAY (1UZ–FE)J6
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
AAAA A A
(Hint : See Page 7)
J24
D24 (C) E5 (D) E7 (F)
J7 J9
J9 J10
M3 S18 T5
LEXUS NAVIGATION SYSTEM
15ATV
2H8
A
IF
IJ212
3G3
3H3
15ARADIONO. 2
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1C1
I 3
I 4
IM24IM213IM18IM19
A2 A7 A13 A5
IJ311IJ36
IB116IB117
AUO+ AUO– ACC +B
GR
GR–R
GR
GR
GR
–R
GR G
R–R
GR
GR
–RVPP V
GR
GR
–R
VPP V
IM16IM17
A6
AUI–
A1
AUI+
10AGAUGE
1D4
A
BM
J22JUNCTIONCONNECTOR
IL310
A8
GND1
A12
SPD
A A
IE113
SP
EE
DO
ME
TER
CPU
B6A22B8
A1
IE111 1D5
1G6 1F13
A
A
II
JUN
CT
ION
CO
NN
EC
TO
R
J 6
JUN
CTI
ON
CO
NN
EC
TOR
J17
JUNCTIONCONNECTOR
J13A
R–L
G
W–BO
W–B
W–B
W–B
V–W
V–W
W–B
W–B
V–W
L–B
L–R
L–B
L–R
STEREO COMPONENTAMPLIFIER
S 9
2 6
C12
COMBINATION METER
BA , C13
N 2
NAVIGATION ECU
BA , N 3
FRONT DOORSPEAKER LH
F 9
TWEETER
1 2
FL+ FL–
IM25 IM214 IM216 IM217 IM215 IM28 IM27 IM26
B3 B8 B7 B6 B2 B5 B4 B1
A6 A16 A8 A2
A3 A9 B5 B1 B2 B6 B7 B8 B4 B12 A1
IH
2 1
RADIO AND PLAYERR 4
MULTI–DISPLAY
L–W O Y W B G R
L–W O Y W B G R
( SH
IELD
ED
)( S
HIE
LDE
D)
IJ110
167
GR
–R
GR
W
L–R
WMPX1 MPX–
GR–R
GR
+B1 ACC MPX2 MPX1
TILT ANDTELESCOPIC ECU
T 5
A/C CONTROL ASSEMBLYA13
TX+ TX– VG VR SYNC B G R
TX+ TX– VG VR SYVC B G R TX1+ TX1– GND1
BR Y
W–B
W–B
NAVIGATION ECU
BM 3 A , M 4
BN 2 A , N 3
TX+ TX–
LEXUS NAVIGATION SYSTEM
The LEXUS navigation system displays the operating status and instructions for the automatic air conditioning or radio andplayer, as well as trip information. Additionally, the navigation system precisely measures the current vehicle position,displays the map obtained from the map database on the screen, and informs the route to the destination shown on the mapusing voice guidance.
N2 (A) NAVIGATION ECU5–GROUND : Always approx. 12 volts
13–GROUND : Approx. 12 volts with ignition SW at ACC or ON position8–GROUND : Always continuity
M3 (A) MULTI–DISPLAY6–GROUND : Always approx. 12 volts
16–GROUND : Approx. 12 volts with ignition SW at ACC or ON position1–GROUND : Always continuity
: PARTS LOCATION
Code See Page Code See Page Code See Page
A13 40 J13 41 N2 A 43
C12 A 40 J17 41 N3 B 43
C13 B 40 J22 42 R4 41
F9 42 M3 A 41 S9 41
J6 41 M4 B 41 T5 41
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1C26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1D26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26Cowl Wire and Driver Side J/B (Left Kick Panel)
1G 27Cowl Wire and Driver Side J/B (Left Kick Panel)
2H 29 Cowl Wire and Passenger Side J/B (Right Kick Panel)
3G31 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Reinforcement Center)
3H31 Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Reinforcement Center)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IB1 50 Front Door LH Wire and Cowl Wire (Left Kick Panel)
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IJ1
IJ2 52 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IJ3
( )
IL3 52 Floor No.1 Wire and Cowl Wire (Right Kick Panel)
IM152 Instrument Panel Wire and Floor No 1 Wire (Front RH Side of the Shift Lever)
IM252 Instrument Panel Wire and Floor No.1 Wire (Front RH Side of the Shift Lever)
: GROUND POINTS
Code See Page Ground Points Location
IF 50 Left Kick Panel
IH 50 Instrument Panel Brace RH
II 50 Right Side of the Cowl Panel
BM 54 Quarter Panel RH
SYSTEM OUTLINE
SERVICE HINTS
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I3 52 Instrument Panel Wire I4 52 Instrument Panel Wire
X X
X
X 16
1
2
A
A A
A A
A A A A
1 2 3 X 6
X 8 9 X X X X X 16
1 2 X 4
5 6 7 8 X X X 12
1 2 34 5 6 7 81 2 X X 5
6 7 8 X X X1213
1 2 X X
2 X
6 X X
7 X
X
2X
X
XX
XX
X
1
AAAA A A
A A
A A A A
2
A13 C12 (A) C13 (B) F9
J13 J22
BLUEM4 (B) N2 (A) N3 (B)
R4 S9GRAY
J6 J17
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
M3 (A)
T5
6
8 X
X
LIGHT AUTO TURN OFF
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
2
40AMAIN
15AECU–IG
120AALT
2
1
3 1
4 2
1 1
1K1
2 3
1 5
1H2
1H13 1E2 1H6 1H11
A19A9
II214
C
C
6 1 8 9
HE
AD
LP
RE
LAY
TAIL
RE
LAY
1 1
B 6
BODYECU NO. 2
A
WG
–R
R–B
R–G
R–G
R–G
B–R
G–W L–O
W
HRLY TRLY MPX2
JUNCTIONCONNECTOR
J14
A2 A15 A3
OFF
TAIL
HEAD
AUTO
LIG
HT
CO
NTR
OL
SW
15 14 13
16
IF
JUNCTIONCONNECTOR
J10
JUNCTIONCONNECTOR
J 6
1F13 1G6
IFII
JUNCTIONCONNECTOR
J17
JUNCTIONCONNECTOR
J 6
COMBINATION SWC14
A
A
A
A
A A
11
TAIL HEAD AUTO GND
R–Y
R–B R
W–B
W–B
W–B
W–B
W–B
W–B
W–B
1H5
B–R
1E1
G–W
A1
O
GSWO
B–R
B–R
G–W
G–W
L–O
O
W
MPX1BECUIG
B–R
B–R
G–W
G–W
L–O
O
W
B–R
B–R
G–W
G–W
L–O
O
W
IE18 IE117
C13COMBINATIONMETER
IJ110
6 7
WW W W ( *1)
WL
16
8 2
( *1)
L–R
W ( *2)
IJ13
D27F24
(*4)28 DF11 (*3)
ENGINE CONTROLMODULE
LL W
5
TILT ANDTELESCOPIC ECU
T 5
A/C CONTROL ASSEMBLYA13
MULTI–DISPLAYM 3
* 1 : W/ LEXUS NAVIGATION SYSTEM* 2 : W/O LEXUS NAVIGATION SYSTEM
* 3 : 1UZ–FE* 4 : 2JZ–GE
E 5 FD , E 7
MPX2 MPX1 MPX– MPX+
MPX1MPX2MPX1MPX2
211
LIGHT AUTO TURN OFF
W
L–O
G–W
G–W
B–R
B–R
O
GR
G–W
18
1
10 1H
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
15ARADIONO. 2
B–R
15 A
2 2E11 2F
2
10AMPX–B
1
I 6
1 2E8 2B4 2G
3 A
W–B
L–Y
W–B
W–B
W–B
LGP
LG–R
LGP
LG–R
W–B
7
B–R
G–W
G–W
B–R
G–W
L–O
G–W
G–W
G–W
B–R
GR
B–R
A
G–W
BODY ECU NO. 1
B 5
2G6 2F13
IFII
JUNCTIONCONNECTOR
J 6
JUNCTIONCONNECTOR
J10
11
A
A
A
IL36 IL318 IL317
A
A5 A6 A4
BM
J22JUNCTIONCONNECTOR
543
1WIRELESS DOORLOCK ECU
W 5
B–R
J13JUNCTIONCONNECTOR
J15JUNCTIONCONNECTOR
J 7
B
JUNCTIONCONNECTOR
B
B
B
D
DB
B–R
B–RB
GSW
10ADOME
2E5
L–Y
20AP FRDOOR
FROM POWER SOURCE SYSTEM(SEE PAGE 60)
2F2
4
L–O
L–B
L–B
L–O
MPX2
B–R
MPX1
19 A
2H11
9
BECU IG ACC
BSUBGNDRSSIRDARCO
J10JUNCTIONCONNECTOR
JUNCTIONCONNECTOR
W–B
A
A
A
W–B
R–G
W–B
D13
GND
DOORCOURTESY SWFRONT LH
I 6
L–O
C3
G–W
C9
B–R
C2
IB1
6
IB1
1
IB1
13
G–W
G–W
L–O
G–W
B–R
IB1
7
IB15
20AD FRDOOR
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1F2
L–B
1 A C18
D22
DRIVER DOOR ECU
BA , D23 C, D24
O
MPX1 CPUB SIG BDR
L–B
IF
J 6
1
2
B15
CTYE
C12
W–B
B14
CTY
B–R
B–R
B–R
G–W
G–W
L–O
G–W
B–R B–R
G–W
G–W
B–R
MPX2
J17JUNCTIONCONNECTOR
W–B
A
A
W–B
R–G
W–B
D14
GND
DOORCOURTESY SWFRONT RH
II
1
2
B15
CTYE
A12
W–B
B14
CTY
IC3
15
IK113
IK11
A9A2A3
O
G–W
G–W
B–R
G–W
B–R
O
O
G–W B–R O
IK1
6
O
A18C1
IK15 IK17
L–B
L–O
L–B
L–O
L–O
L–B
MPX2BDR
F11
FRONT PASSENGERDOOR ECU
BA , F12 C, F13
IK14IB14
W–B
W–B
MPX1SIGCPUB
LIGHT AUTO TURN OFF
B–R
G–W
G–W
B–R
O
O
GNDCTYE
9 BA1
W–B
W–B
CTY
W–B
R–W
W–B
REAR DOORLH ECU
25188 R12
DOORCOURTESY SWREAR LH
P19POWER SEAT ECU
1
2
BC13BC110
BA13IC22
1011
OL–
Y
L–O
L–O
L–O
L–O
L–O
(*6)
( *5)
( *5)
( *5)
( *5)
BJ
D15
5
O
BA18 BA16 BA111 BA12
15 9 14
A
20AD RRDOOR
1E6
A
JUNCTIONCONNECTOR
J 8
G–W
B–R
L–R
L–R
B–R
4
MPX1 CPUB SIG BDR MPX2
GNDCTYE
9 BB1
W–B
W–B
CTY
W–B
R–Y
W–B
REAR DOORRH ECU
25188 R13
DOORCOURTESY SWREAR RH
1
2
BL
D16
9
B–R
BB111 BB16 BB13 BB12
15 4 14
20AP RRDOOR
G–W
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
2E6
O L–R
L–R
5
SIG CPUB MPX2 BDR MPX1
SEL1
10 BB1
W–B
W–B
20
BM
A
JUNCTIONCONNECTOR
J22
BB18
IL315IL116
O L–O
L–O
G–W L–
RB–R
L–RB–R
L–O
O
* 5 : W/ DRIVING POSITION MEMORY* 6 : W/O DRIVING POSITION MEMORY
MPX2 MPX1
This system automatically turns off the taillights and/or headlights when the driver door is opened and closed to prevent thelights from remaining lit.
LIGHT AUTO TURN OFF OPERATION∗ Taillights ONIf the ignition SW is turned from ON to OFF with the taillights turned on (The light control SW is set at TAIL), the signal isinput to TERMINAL IG of the body ECU No.2. At this time, if the driver door is opened, the signal is input from the doorcourtesy SW front LH to TERMINAL CTY of the driver door ECU. After that, TERMINAL TRLY of the body ECU No.2 iscontrolled through communication control of the body ECU and door ECU etc. to turn off the TAIL relay. As a result, thecurrent flowing into the taillights is cut off to turn off the taillights.∗ Taillights and headlights ONIf the ignition SW is turned from ON to OFF with the taillights and headlights turned on (The light control SW is set at HEAD),the signal is input to TERMINAL IG of the body ECU No.2. At this time, if any door is opened, the signal is input from thedoor courtesy SW to TERMINAL CTY of the driver door ECU. During this operation, the taillights and headlights areremained lit. When all doors and the luggage door are closed, the taillights and headlights are turned on for 30 sec. ,throughcommunication control of the body ECU and door ECU. After the set time has elapsed, a signal is input to TERMINAL TRLYand HRLY of the body ECU No.2, to turn off the TAIL relay and HEAD LP relay. As a result, the current flowing into thetaillights and headlights is cut off to turn off the taillights and headlights.
If any door is opened during above operation, the taillights and headlights light up for 30 sec. again, and then go off after allthe doors have been closed.Additionally, if the vehicle is locked using the wireless door lock operation while the taillights and headlights are being turnedon for 30 sec., the taillights and headlights go off immediately.
C14 COMBINATION SW15–16 : Closed with light control SW at TAIL or HEAD position14–16 : Closed with light control SW at HEAD position13–16 : Closed with light control SW at AUTO position
W5 WIRELESS DOOR LOCK ECU7–GROUND : Always approx. 12 volts1–GROUND : Always continuity
D13, D14, D15, D16 DOOR COURTESY SW FRONT LH, RH, REAR LH, RH1–2 : Closed with door open
D23 (B) DRIVER DOOR ECU15–14 : Continuity with driver door open
F12 (B) FRONT PASSENGER DOOR ECU15–14 : Continuity with front passenger door open
R12 REAR DOOR LH ECU8–18 : Continuity with rear LH door open
R13 REAR DOOR RH ECU8–18 : Continuity with rear RH door open
SYSTEM OUTLINE
SERVICE HINTS
LIGHT AUTO TURN OFF
: PARTS LOCATION
Code See Page Code See Page Code See Page
A13 40 D24 C 42 J14 41
B5 A 40 E5 D 38 (2JZ–GE) J15 41
B6 A 40 E7 F 36 (1UZ–FE) J17 42
C13 40 F11 A 42 J22 42
C14 40 F12 B 42 M3 41
D13 42 F13 C 42 P19 44
D14 42 J6 41 R12 43
D15 42 J7 41 R13 43
D16 42 J8 41 T5 41
D22 A 42 J10 41 W5 43
D23 B 42 J13 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1E 26 Floor No.2 Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
1K 26 Engine Room Main Wire and Driver Side J/B (Left Kick Panel)
2B 28 Engine Room Main Wire and Passenger Side J/B (Right Kick Panel)
2E 28 Floor No.1 Wire and Passenger Side J/B (Right Kick Panel)
2F 28
2G29
Cowl Wire and Passenger Side J/B (Right Kick Panel)
2H29
g ( g )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IB1 50 Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC250 Floor No 2 Wire and Cowl Wire (Left Kick Panel)
IC350 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
II2 52 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
IJ1 52 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IK1 52 Front Door RH Wire and Cowl Wire (Right Kick Panel)
IL152 Floor No 1 Wire and Cowl Wire (Right Kick Panel)
IL352 Floor No.1 Wire and Cowl Wire (Right Kick Panel)
BA1 54 Rear Door LH Wire and Floor No.2 Wire (Under the Center Pillar LH)
BB1 54 Rear Door RH Wire and Floor No.1 Wire (Under the Center Pillar RH)
BC1 56 Floor No.2 Wire and Front Seat LH Wire (Under the Driver’s Seat)
: GROUND POINTS
Code See Page Ground Points Location
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
BJ 54 Rear Floor Partition Panel LH
BL 54 Rear Floor Partition Panel RH
BM 54 Quarter Panel RH
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I6 52 Cowl Wire
5 X X
X
X 16
21 3 9 X
5 X 19 X X X X1
X X
X 1314
X
15
X
16
1
X
14 15
2 3 X X 9
X 12 X 18X X X X
X X X X
X X X 28
X
27
X X X X X X 11 X X
24
3 4 5 6 X X
X 15 19
A13 B5 (A) B6 (A)
C13 C14GRAY GRAY
GRAY GRAY GRAY GRAY
GRAY (2JZ–GE) (1UZ–FE)
D13 D14
D15 D16 D22 (A) D23 (B)
D24 (C) E5 (D) E7 (F)
1 2 1 2
1 2 1 2
2 X
X1 1
LIGHT AUTO TURN OFF
B B B B B B B
A A A AA A A A AA A A A A A A A
D
DD
D
C
CC
CC
B
B B B B
AAAA A A
A A
A A A A
X X
1011 X X 2 X
X 8 X X X X X
X 4 5 X 8 9
14 15 18 X 25
X 4 5 X 8 9
14 15 18 20 25
1 X 3 4 5 X 7
6 7 X
GRAY ORANGEJ13
J14 J15 J17 J22
BLUEP19 R12
R13
BLACK
GRAYW5
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
2 3 X X X 9
X 12 X X X 18X X X X
X X X 14 15
1
X
A A
A A A A
GRAY GRAY GRAYJ6
(Hint : See Page 7)
F11 (A) F12 (B) F13 (C)
J7 J8 J10
M3
T5
MEMO
LUGGAGE COMPARTMENT DOOR OPENER
15AECU–IG
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1H5
10AMPX–B
1
20AP FRDOOR
15ARADIONO. 2
1H10
2F11 2B8
A15
DB
B
B
B D
481
B–R
B–R
B–R GR
GR
G–WJUNCTION
CONNECTOR
J 7
JUNCTIONCONNECTOR
J15JUNCTIONCONNECTOR
J13
A2
IC116
L
M
1
L
2G6 2F13
11
II
A17
2
1
IF
LUGGAGECOMPARTMENTDOOR OPENERMOTOR
L 5
LUGGAGECOMPARTMENTDOOR OPENERSW
L 1
JUNCTIONCONNECTOR
J10
JUNCTIONCONNECTOR
J 6
V–Y
W–B
W–B
W–B
W–B
W–B
W–BA
A
A
A
B 5
BODY ECU NO. 1
A
2
1
TSW TR+
IG BECU BSUB ACC
GND
L1 LUGGAGE COMPARTMENT DOOR OPENER SW1–2 : Closed with the luggage compartment door open
B5 (A) BODY ECU NO.11–GROUND : Approx. 12 volts with ignition SW at ON or ST position
4, 8–GROUND : Always approx. 12 volts(A)15–GROUND : Approx. 12 volts with ignition SW at ACC or ON position(A)17–GROUND : Continuity with luggage compartment door open
: PARTS LOCATION
Code See Page Code See Page Code See Page
B5 A 40 J10 41 L1 41
J6 41 J13 41 L5 43
J7 41 J15 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1H 27 Cowl Wire and Driver Side J/B (Left Kick Panel)
2B 28 Engine Room Main Wire and Passenger Side J/B (Right Kick Panel)
2F 28Cowl Wire and Passenger Side J/B (Right Kick Panel)
2G 29Cowl Wire and Passenger Side J/B (Right Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IC1 50 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
: GROUND POINTS
Code See Page Ground Points Location
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
2 X X
X 15 17
1 2 1
A A
A A A A B B B B B B B
A A A A AA A A A A A A A
D
DD
D
B
B B B B
B5 (A) J6GRAY ORANGE
J13 J15 L1BLACK
(Hint : See Page 7) (Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
J10
L5
J7
SERVICE HINTS
MOON ROOF
15AECU–IG
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1H5
25AS/ROOF
2D8
2F11
2D1B
B
B
B
8
+B
MPXDRIVER/RECEIVER
IM PUT
RELAYCIRCUIT
IM PUT+B
IM PUT
HALL IC
M
MOON ROOFMOTOR
LIM
IT S
WN
O. 2
LIM
IT S
WN
O. 1
VC
C
RS
T
SO
UT
SIN
EX
WU
P
GN
D
MOON ROOF CONTROL ECUM 5
5 7 9 10 3 4
R–Y
R–W
G–Y
P
W–B
B–R
B–R
L–O
R–Y
R–WG–YP
W–B
JUN
CTI
ON
CO
NN
EC
TOR
J 7
JUN
CT
ION
CO
NN
EC
TO
R
J15
2D6
9
BODY ECUNO. 1
2
O
B–R
B–R
B–R
MPX2
B MPX1 IG E OPN CLS DWN UP
3 2 4 1
5
UP
DO
WN
CLO
SE
OP
EN
B 2
IF
AA
2D5
2F13
1F13
1G6
II
2G6
II
A
A
W–B
W–B
W–B
W–B
A
A
W–B
W–B
W–B
W–B
JUNCTIONCONNECTOR
J10
JUNCTIONCONNECTOR
J17
JUNCTIONCONNECTOR
J 6
MOON ROOF CONTROL SWM 6
R–Y
R–W
G–Y
P
W–B
R–Y
R–W G–Y P
W–B
MOON ROOF
In this system, the HALL IC in the moon roof control ECU detects changes in the motor rotation to allow opening/closing andtilting up/down of the moon roof using one touch operation. Additionally, catching prevention mechanism during moon roofoperation is also provided.
Voltage is always applied from the S/ROOF fuse to TERMINAL 5 of the moon roof control ECU. When the ignition SW isturned to ON, the voltage is applied from the EUG–IG fuse to TERMINAL 8 of the moon roof control ECU.
1. SLIDE OPEN OPERATIONWhen the moon roof control SW is kept pressed to OPEN position for approximately 0.3 sec. or longer (The limit SW No.1 isoff and limit SW No.2 is on), the signal is input from TERMINAL 1 of the moon roof control SW to TERMINAL 9 of the moonroof control ECU. This activates the ECU and rotates the motor to open the moon roof. After that, when the limit SW No.1 isturned on, and then turned off again, the pulse signal sent from the HALL IC activates the ECU, and it determines that themoon roof is fully opened, and stops the motor rotation. If other operation SW or open SW is operated while the moon roof isbeing opened, the ECU is activated to stop the moon roof operation. Additionally, when the moon roof is tilted up, the slideopen operation does not function.
2. SLIDE CLOSE OPERATIONWhen the moon roof control SW is kept pressed to CLOSE position for approximately 0.3 sec. or longer (The limit SW No.1is off and limit SW No.2 is off), the signal is input from TERMINAL 4 of the moon roof control SW to TERMINAL 10 of themoon roof control ECU. This activates the ECU and rotates the motor to automatically close the moon roof. After that, whenthe limit SW No.2 is turned on, the pulse signal sent from the HALL IC activates the ECU, and it determines that the moonroof is fully closed, and stops the motor rotation. If other operation SW or close SW is operated while the moon roof is beingclosed, the ECU is activated to stop the moon roof operation.
3. TILT UP OPERATIONWhen the moon roof control SW is kept pressed to TILT UP position for approximately 0.3 sec. or longer (The limit SW No.1is off and limit SW No.2 is on), the signal is input from TERMINAL 3 of the moon roof control SW to TERMINAL 4 of themoon roof control ECU. This activates the ECU and rotates the motor to automatically tilt up the moon roof. If the pulsesignal sent from the HALL IC is not input for 0.5 sec. or longer when the moon roof is fully tilted up, the ECU determines thatthe motor has stopped, and stops the current flowing into the motor.If other operation SW or tilt up SW is operated while the moon roof is being tilted up, the ECU is activated to stop the moonroof operation. Additionally, when the moon roof is open, the tilt up operation does not function.
4. TILT DOWN OPERATIONWhen the moon roof control SW is kept pressed to TILT DOWN position for approximately 0.3 sec. or longer (The limit SWNo.1 is on and limit SW No.2 is on), the signal is input from TERMINAL 2 of the moon roof control SW to TERMINAL 3 of themoon roof control ECU. This activates the ECU and rotates the motor to automatically tilt down the moon roof. When thelimit SW No.1 is turned off, the pulse signal sent from the HALL IC activates the ECU, and it determines that the moon roof isfully closed, and stops the motor rotation.If other operation SW or tilt down SW is operated while the moon roof is being tilted down, the ECU is activated to stop themoon roof operation.
5. CATCHING PREVENTION FUNCTIONIf the moon roof control ECU detects a catching load from changes in the motor rotation during slide close or tilt downoperation, the operation is stopped, and then the motor is rotated in the reverse direction.Slide close operationThe moon roof is moved approximately 200 mm in the reverse direction (Slide open) after a catching load has beendetected. However, if the full open position is detected before moving approximately 200 mm completely, the reversemovement is stopped.Tilt down operationIf a catching load is detected during tilt down operation, the moon roof is fully tilted up.
SYSTEM OUTLINE
6. KEY OFF MOON ROOF OPERATIONAfter the ignition SW is turned from ON to OFF, communication control of the body ECU and door ECU etc. allows the moonroof operation for 45 sec. However, when the driver or front passenger door is opened during above moon roof operation,the moon roof operation is stopped even though 45 sec. have not elapsed.
7. MOON ROOF OPERATION LINKED WITH TRANSMITTERWhen the unlock SW on the transmitter of the ignition key is kept pressed for 1.5 sec. or longer, the slide open operation ofthe moon roof functions through communication control of the body ECU and door ECU etc.
8. MOON ROOF OPERATION LINKED WITH DOOR KEY LOCK AND UNLOCK SWWhen the ignition key is inserted into the driver door key cylinder and kept turned to the lock or unlock position forapproximately 1.5 sec. or longer, the slide open or close operation of the moon roof functions through communication controlof the body ECU and door ECU etc.
9. FAIL SAFE FUNCTIONIf the moon roof is operated continuously in the same operating direction, the current flowing into the motor is cut off whenthe time shown below has elapsed after the motor operation has been started.Slide open/close operation with the moon roof control SW Approximately 20 sec.Tilt up/down operation with the moon roof control SW Approximately 2 sec.Slide open operation for reverse movement in case of activation of the catching prevention function Approximately 20 sec.Tilt open operation for reverse movement in case of activation of the catching prevention function Approximately 2 sec.
M5 MOON ROOF CONTROL ECU5–GROUND : Always approx. 12 volts8–GROUND : Approx. 12 volts with ignition SW at ON or ST position7–GROUND : Always continuity
M6 MOON ROOF CONTROL SW3–5 : Closed with moon roof control SW at TILT UP position2–5 : Closed with moon roof control SW at TILT DOWN position1–5 : Closed with moon roof control SW at OPEN position4–5 : Closed with moon roof control SW at CLOSE position
5–GROUND : Always continuity
: PARTS LOCATION
Code See Page Code See Page Code See Page
J6 41 J15 41 M6 43
J7 41 J17 41
J10 41 M5 43
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
2D 28 Roof Wire and Passenger Side J/B (Right Kick Panel)
2F 28Cowl Wire and Passenger Side J/B (Right Kick Panel)
2G 29Cowl Wire and Passenger Side J/B (Right Kick Panel)
: GROUND POINTS
Code See Page Ground Points Location
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
B2 54 Roof Wire
SERVICE HINTS
MOON ROOF
B B B B B B B
A A
A A A AA A A A AA A A A A A A A
B
B B B B
AAAA A A
X 2 3 4
5 X 7 8 9 101 2 34 5 X
J6ORANGE
J15
J17 M5 M6
(Hint : See Page 7) (Hint : See Page 7) (Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)
J7 J10GRAY
MEMO
MULTIPLEX COMMUNICATION SYSTEM (COMMUNICATION BUS)
FR
ON
T P
AS
SE
NG
ER
DO
OR
EC
U
F11
MO
ON
RO
OF
CO
NTR
OL
EC
U
M 5
A/C
CO
NTR
OL
AS
SE
MB
LY
A13
CO
MB
INA
TIO
NM
ETE
R
C13
DR
IVE
R D
OO
RE
CU
D24
RE
AR
DO
OR
LH E
CU
R12
RE
AR
DO
OR
RH
EC
U
R13
IK16 IE117 IB17
IL116
BB13 IJ110
IC315
BA18
IK17
2H11 2D6
A19 F11
D28
D27F24
IJ13 IE18 IB16
1H11
A19
BB18
IL315
IC22
BC110
BA13
BC13
2 6 4 5
9115218
10
4578
9 16 2 18
1199
OO
OO
L–R
W
WL
W
W
OO
O
O OL–
OL–
OL–
O
L–O
L–Y
O
L–O
WLOL–O
L–O
W WL W L–O
W L–O
MPX1 MPX2 MPX2 MPX1
MPX1MPX+MPX2
MPX1 MPX1 MPX2 MPX1
L–O
B 5
BODY ECUNO. 1
A B 6
BODY ECUNO. 2
A
E 5
EN
GIN
E C
ON
TRO
L M
OD
ULE
FD
, E
7M
ULT
I–D
ISP
LAY
M 3
TILT
AN
DTE
LES
CO
PIC
EC
U
T 5
PO
WE
R S
EA
TE
CU
P19
MPX1 MPX– MPX2
MPX2 MPX1 MPX1 MPX2
( *1)
( *2)
( *1)
L–O
MPX2 MPX2 MPX1
(2JZ–GE)(1UZ–FE)
(1UZ–FE)(2JZ–GE)
( *3) (* 4)
( *3)
( *3)
( *3)
L–O
( *3)
MPX2
* 1 : W/ LEXUS NAVIGATION SYSTEM* 2 : W/O LEXUS NAVIGATION SYSTEM
* 3 : W/ DRIVING POSITION MEMORY* 4 : W/O DRIVING POSITION MEMORY
MPX1
MULTIPLEX COMMUNICATION SYSTEM INCLUDES FOLLOWING SYSTEMS
∗ AUTOMATIC AIR CONDITIONING
∗ AUTOMATIC LIGHT CONTROL
∗ CHARGING
∗ COMBINATION METER
∗ CRUISE CONTROL (1UZ–FE)
∗ CRUISE CONTROL (2JZ–GE)
∗ ELECTRONICALLY CONTROLLED TRANSMISSION (1UZ–FE)
∗ ELECTRONICALLY CONTROLLED TRANSMISSION (2JZ–GE)
∗ ENGINE CONTROL (1UZ–FE)
∗ ENGINE CONTROL (2JZ–GE)
∗ HEADLIGHT
∗ INTERIOR LIGHT
∗ KEY REMINDER AND SEAT BELT WARNING
∗ LEXUS NAVIGATION SYSTEM
∗ LIGHT AUTO TURN OFF
∗ MOON ROOF
∗ POWER SEAT (DRIVER’S SEAT w/ DRIVING POSITION MEMORY)
∗ POWER TILT AND POWER TELESCOPIC
∗ POWER WINDOW
∗ REAR WINDOW DEFOGGER AND MIRROR HEATER
∗ REMOTE CONTROL MIRROR
∗ STOP LIGHT
∗ TAILLIGHT
∗ THEFT DETERRENT AND DOOR LOCK CONTROL
∗ VSC
∗ WIRELESS DOOR LOCK CONTROL
MULTIPLEX COMMUNICATION SYSTEM
40AMAIN
2
1
3 1
4 2
11
II214
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
HEAD LPRELAY
120AALT
2
1
1
1K1
2 3
1 5
1H2
A9
1H13
TAIL
RE
LAY
A17A3A15A2
OFF
TAIL
HEAD
AUTO
FOG
LIG
HT
CO
NTR
OL
SW
A18 A10
1D6 1D1 1D7 1B8 1E3
BC18
BJ
BC112
COMBINATION SWC14C
EN
TE
R A
IRB
AG
SE
NS
OR
AS
SE
MB
LY
C 8
DA
YTI
ME
RU
NN
ING
LIG
HT
RE
LAY
(M
AIN
)
D 5
BR
AK
E F
LUID
LE
VE
LW
AR
NIN
G S
W
B 1
BU
CK
LE S
W L
HB
7JU
NC
TIO
NC
ON
NE
CTO
R
J23
AUTOMATIC LIGHTCONTROL SENSOR
A30
R–G
R–B
R–G
R–G
G–R
W
JUNCTIONCONNECTOR
J14
A6 A8 A7
15ASTOP
1H8
1
2
A14
STO
P L
IGH
T S
WS
11JU
NC
TIO
NC
ON
NE
CTO
R
J 7
REMOTE CONTROLMIRROR SW
R 6
9 7 8
AC
AC
WG
–WG
–W
TAIL HEAD AUTO FFOGGSW ALTL CLTS CLTB BLVL
HRLY TRLY FFGO STPI MIRE MIRB MIRS
56
741223
15AH–LPR LWR
1
1H3
2 5
1 3
15AFR FOG
A20 A21
IC14
A4
18 IJ2
11 A
LIG
HT
FAIL
UR
E S
EN
SO
RL
4
CLO
CK
C11
LF ACAN
SLCKP1
G–O
G–Y W
BR
–B V
7 8
SHIFT LOCKCONTROL ECU
S 4
R–L
R–L
FOGRELAY
15 14 13 12
4
5
4
6
4 1 32
A
16
1
A
L
Y–R
V–R
LG–B
V–R
LG–B
R–G
GR
–R
W–B
Y–B
B–L
B–L
W–B
W–B
W–B
R–Y
R–B
R
G–W
W–B
( W/ D
AY
TIM
E R
UN
NIN
G L
IGH
T)
B 6
BODY ECU NO. 2
A
2
1
II27
E M+ MSW
CLTE DBKL
GS
W
CH
G–
WR
N
ILL+
CLTS CLTB CLTE
(*1)
IGEB
W–B
( W/O
DA
YTI
ME
RU
NN
ING
LIG
HT)
( W/ D
AY
TIM
E R
UN
NIN
G L
IGH
T)
4
1
W–B
1F
IIIF
15AECU–IG
1E2 1H5 1D2 1H6 1E1 1H11
A19
1G6
A5
1
2
JUN
CTI
ON
CO
NN
EC
TOR
J 9
UN
LOC
K W
AR
NIN
G S
WU
1JU
NC
TIO
NC
ON
NE
CTO
R
J10
JUN
CTI
ON
CO
NN
EC
TOR
J17
A13
I 1
2F4
2D9
I 1 I 1
IJ217
2
1
IJ216
1
2
2
1
1
2
I 1 I 1 I 1
IC18
STE
P L
IGH
T R
HS
6
STE
P L
IGH
T L
HS
5
IGN
ITIO
N K
EY
CY
LIN
DE
R L
IGH
TI2
1
LUG
GA
GE
CO
MP
AR
TME
NT
LIG
HT
L 7
10ADOME
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
2H12 2D7 2E5
2
1
BK
PE
RS
ON
AL
LIG
HT
P 7
NO
ISE
FIL
TER
( STO
P L
IGH
T)
N 6
JUNCTIONCONNECTOR
J20
KSW ILEGND
1 8 9
11
IG MPX2
L–O
G–W
G–W
G–W
B–R
B–R
W
L–Y
L–Y
L–Y
L–O
G–W
G–W
G–W
W
B–R
B–R
L–Y
W–B
W–B
W–B
Y G
YW
–BW
–B
W–B
GG
GG
L–Y
L–Y
L–Y
L–Y
G G RL–
YL–
Y
L–Y
L–Y
R R
W–B
W–B
G G
L–Y L–Y
A1
GSWO
O
O
B 2
GR
L–Y
L–Y
A
A
A
3 2
A
A
A
A A
1
B 6
BODY ECU NO. 2
A
G
* 1 : FOG LIGHT SW
BECU MPX1
DO
OR
OF
FO
N
L–Y W
–B
1 3
2
GR
R–W
R–W
DIO
DE
(LU
GG
AG
EC
OM
PA
RTM
EN
T D
OO
RO
PE
N D
ETE
CT
ION
)
D 8
I 1
13
JUN
CT
ION
CO
NN
EC
TOR
J 6
A
W–B
W–B
MULTIPLEX COMMUNICATION SYSTEM
L–Y
B–R
B–R
W
G–W
G–W
G–W
L–O
O
GR
L–Y
W–B
1
23
1
232
1
2
1
B 2 B 2 B 2 B 2
1
2
B 2 B 2 B 2 B 2 B 2
INT
ER
IOR
LIG
HT
RE
AR
RH
I25
INT
ER
IOR
LIG
HT
RE
AR
LH
I24 V
AN
ITY
LIG
HT
LHV
8
VA
NIT
Y L
IGH
T R
HV
9
GA
RA
GE
DO
OR
OP
EN
ER
G 5
B2
A13
B11
IE1
8
IE1
17
IJ110
IJ13
D28F11
F24D27
L–Y
B–R
B–R
G–W
G–W
L–O
O
GR
WL–Y L–Y L–Y
W
G–W
W
W
L
W
L–Y
L–Y
L–Y
L–Y
L–Y
W
7
6
C12
COMBINATION METER
BA , C13
TILT ANDTELESCOPIC ECU
T 5
W–B
R–B
R–G
W–B W–B W–B W–B W–B
R–B
R–G
LL
L–R
W
W
W–B
W–B
W–B
W–B
R–B
W–B
R–G
2
8
516
( *2)
( *3)
( *2)
MU
LTI–
DIS
PLA
YM
3
A/C CONTROL ASSEMBLYA13
(*4)(*5)
(*4)(*5)E
NG
INE
CO
NTR
OL
MO
DU
LE
2D2
2H4
2D4
2H6
FE
5D
, E
7
MPX2
MPX1
MPX1
MPX2
MPX2
MPX1
MPX– MPX+
R–W R–W
10AMPX–B
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
15ARADIONO. 2
1H10
I 6
2G4 2B8 2E1
A3 A15
2F11 2E2
2D5 2G6 2F13
II BM
2
1
A17 A5 A6 A4
IL36 IL318 IL317
IF
M
A10A2
IC33
IC116
L–Y
B–R
B–R
G–W
G–W
L–O
O
W
GR
R–B
R–G
W–B
B–R
B–R
G–W
B–R
G–W
G–W
L–O
B–R
R–B
R–G
JUNCTION CONNECTORJ 7
JUNCTION CONNECTORJ15
JUNCTIONCONNECTOR
J13
G–W
GR
GR
B–R
B–R
G–W
G–W
G–W
L–Y
O
G–W G–W
B
D
D
BB
B B B
GSW ACC
2
1
18
B–R B–RB–R
B–R
TSW RCO RDA RSSILGCYTR+
7 1A
A
A
3 4 5
2 1
A
A
B 5
BODY ECU NO. 1
A
JUN
CTI
ON
CO
NN
EC
TOR
J10
JUNCTIONCONNECTOR
J 6JUNCTIONCONNECTOR
J22
WIR
ELE
SS
DO
OR
LOC
K E
CU
W 5
LUG
GA
GE
CO
MP
AR
TME
NT
DO
OR
CO
UR
TES
Y S
WA
ND
OP
EN
ER
MO
TOR
L 5
11
W–B
W–B
W–B
V–Y
LG–R P LG
R–W
LL
R–W
GR
LGP
LG–R
W–B
W–B
W–B
W–B
L–Y
LUG
GA
GE
CO
MP
AR
TME
NT
DO
OR
OP
EN
ER
SW
L 1
* 2 : W/ LEXUS NAVIGATION SYSTEM* 3 : W/O LEXUS NAVIGATION SYSTEM
* 4 : 1UZ–FE* 5 : 2JZ–GE
A19
W
R–W
MPX1 BECU IG
GND
3
4
A7
RET
P–G
W–BMIR
RO
R R
ETR
AC
TIO
N S
WM
7
W–B
A
A
J17
JUN
CTI
ON
CO
NN
EC
TOR
W–B
MULTIPLEX COMMUNICATION SYSTEM
1
2B9
2
1
A9
EB
1
2
IC17
A16
BK
A12 A13
BU
ZZE
R
WIR
ELE
SS
DO
OR
LO
CK
BU
ZZE
RW
4
P–B
P–L
2
1
BZRBZR2
THE
FT D
ET
ER
RE
NT
HO
RN
T 1
EN
GIN
E H
OO
D C
OU
RTE
SY
SW
E 9
LUG
GA
GE
CO
MP
AR
TME
NT
DO
OR
KE
Y U
NLO
CK
SW
L 6
IE25
A22
SE
CU
RIT
Y IN
DIC
AT
OR
[RH
EO
ST
AT]
R 7
JUN
CT
ION
CO
NN
EC
TOR
J14
JUNCTIONCONNECTOR
J20
2
1
A18
4
BD112
BL
BU
CK
LE S
W R
HB
8
1
A21 A23 A24
II
ELE
CTR
ON
ICA
LLY
CO
NTR
OLL
ED
TRA
NS
MIS
SIO
N P
ATT
ER
NS
ELE
CT
SW
E12
A20
PA
RK
ING
BR
AK
E S
WP
4
SE
AT
BE
LT W
AR
NIN
GO
CC
UP
AN
T D
ETE
CTI
ON
SE
NS
OR
S18
JUN
CTI
ON
CO
NN
EC
TOR
J24
JUN
CT
ION
CO
NN
EC
TO
RJ1
7 DA
TA L
INK
CO
NN
EC
TOR
3
D 4
HAZARDSW
H18
JUN
CTI
ON
CO
NN
EC
TOR
J 9
HCTY TKUL IND PBKL PKB PWR SNOW OBD2
R–B
R–G
R–B
R–G
P–B
V–G
LG–B
V B–L
B–L
VV
LG–B
W–B
W–B
B–L B
–O
W–B
W–B
W–B
W–B
W–B
Y–B
G–W
G–R
W–G
W
A
B
B
C
3
7
C17
A
B
2
B
A
B 5
BODY ECU NO. 1
A
2
IL12
BD16
10AHORN
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
2
25
1
3
2
2
2
A1
II216
HORN
JUNCTIONCONNECTOR
J18
A
1
2
AG–B G–B
B
G
G
G–B
G–B
HORN RELAY
B–R
B–R
G–W
B–R
G–W
G–W
L–O
B–R
B–R
B–R
G–W
B–R
G–W
G–W
L–O
B–R
42
5
1
3
4
4
L4
4
4W–B
L–B
HTR RELAY
2F12
3
V
V
LP SIL
R–L
SH
HR
A25
IJ27
HAZ
B1
10
W–G
W–G
W–G
PW
R
SN
OW
2
1
1
A6 B5 B6 B2 B10 B11 B1 A13 A7 B4B9
20AP FRDOOR
FROM POWER SOURCE SYSTEM(SEE PAGE 60)
2F22G72H13
IB19IK110
B3B7
B 5
BODY ECU NO. 1
A
C9 C2 C3 A1
IB16 IB113 IB11 IB15
B–R
L–O
G–W
G–W
B–R
G–W
B–R
B–R
I 6
20AD FRDOOR
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1F2
B–R
G–W
B–R
G–W
G–W
B–RL–
O
B–R
G–W L–
B
B–R
G–W L–
BL–
B
G–WG–W
MPX1 SIG CPUB BDR
Y
L–B
R–Y
L–O
R–B
R–G
R–B
R–G
5 4
Y–G
GR
–G
V–R
LG–B
L–W
L–R
GR
–R
V–W V GR
W–B
LG–R
L–B
10
2 3 4 5 6 7 11 12 13 14 16 17 18
15
R–Y
R–Y
L–O
L–B
R–Y
R–Y
POWER WINDOW MASTER SWP11
WLSW DT1 SC1 ML MUP AUTO DT2 SC2 SC3 DT3 PWE MUL MDNMPX2
D22
DRIVER DOOR ECU
BA , D23 C, D24
DOULEDT3SC3SC2DT2DADULSC1DT1W/L
PWS W/L2
2H112D6
9
2
OM
PX
1
MO
ON
RO
OF
CO
NTR
OL
EC
UM
5
PWS BSUB
C1F
R–L
10AHEATER
8C
3 2
5 1
2H3
MIRRELAY
R–L
R–L
6
J13JUNCTIONCONNECTOR
DFG
C
MULTIPLEX COMMUNICATION SYSTEM
IF
C12
IB14
A11 B12A2 B13 B16 A17 A8 A15 A3 A4 A5
A16 C15 C14 C4
21 1 2
B14 B15 A10 A12
D22
DRIVER DOOR ECU
BA , D23 C, D24
MSWE M1 M2 MM CTYE CTY CTYB CYL
B–R
G–W
B–R
G–W
G–W
B–R
B–R
G–W
B–R
G–W
G–W
B–R
7531
BR
–W P P–B GR W
–B
R–G
R–Y
R–W
DOOR COURTESY SWFRONT LH
D13DOOR COURTESYLIGHT FRONT LH
D 9
DR
IVIN
G P
OS
ITIO
NM
EM
OR
Y S
W
D25
( *6)
( *6)
( *6)
( *6)
2 41 3 5
1 2 3 4 5 6
A
A
A
Y
L–B
R–Y
L–O
R–B
R–G
Y
L–B
R–Y
L–O
R–B
R–G
G
W–GR W
BR
–B
G–B
G–R
BR
–B
GR
P–B
P–G
W–B
W–B
W–B
DN LMTUP PLS SGND A– A+ LSWE LSW KL KUL GND
JUNCTIONCONNECTOR
J10
JUNCTIONCONNECTOR
J 6
DO
OR
LO
CK
MO
TOR
, D
OO
R K
EY
LOC
K A
ND
UN
LOC
K S
W A
ND
DO
OR
LO
CK
DE
TEC
TIO
N S
WFR
ON
T L
H
D18
IB12Y
E M1 M2 MRY
M
UN
LOC
K
LOC
K
LOC
KD
ETE
CT
ION
M
PO
WE
R W
IND
OW
MO
TOR
FR
ON
T LH
P12
C16 C7 C8 B8 C1 C10 C13
A1B4
A2B5
A8 A9 A10 A11A6B6 (*7)
B–R
G–W
B–R
G–W
G–W
B–R
C18 A2 A3
IK113 IK11IB17
C6 C7 C16
IK15 IK17
C1 A18
DO
OR
LO
CK
CO
NTR
OL
SW
RH
D17
Y
L–B
R–Y
L–O
R–B
R–G
R–B
R–G
R
Y–R
B–O BR
LG
LG–R
LG–B
LG–B
LG–R
W–B
L–B
L–O
L–O
L–B
MPX2BDRDLEMULMLDMVRDM+RDMHR DE2HSSRVSSRDVC
MPX2 SIG CPUB
213
F11
FRONT PASSENGER DOOR ECU
BA , F12
B–R
G–W
G–W
B–R
O
O B–R
G–W
G–W
B–R
O
F13, C
* 6 : W/ DRIVING POSITION MEMORY* 7 : W/O DRIVING POSITION MEMORY
IC315
O
MH COM MV VC VSR HSR E1
* 8 : W/ RETRACTION
A9 A18
A14A5
MR+ MR–
(*6)
MR MF
DRIVER DOOR ECU
BD22 , D23A C, D24
G–B
( *8)
( *8)
B
LOC
K
UN
LOC
K
4Y
BR
16A
, R
17R
EM
OT
E C
ON
TRO
LM
IRR
OR
LH
L–R
L UL E
MULTIPLEX COMMUNICATION SYSTEM
B–R
G–W
G–W
B–R
O
B–R
G–W
G–W
B–R
O
B14
21
B15 C10
1 2
C12
CTYE CTY CTYB CYL
F11
FRONT PASSENGER DOOR ECU
BA , F12 C, F13
DOOR COURTESY SWFRONT RH
D14DOOR COURTESYLIGHT FRONT RH
D10
R–WR–Y
R–G
W–B
C13 B4 B6 B5
2 4 5 6
IK1
9
C11 C2 B12 B13 B16
1 2 4 3 5
3
W–B
L–B
L–R
L–W G R
W–G W
BR
–WPWE MDN AUTO MUP DN UP LMT PLS SGND
Y
R–B
R–G
Y
Y
Y
R–B
R–G
POWER WINDOW CONTROLSW FRONT RH
P 8
A12
IK14
II
A
A
W–B
W–B
W–B
W–B
GND
E D A U
PCT
M
POWER WINDOW MOTOR FRONT RHP13
JUN
CT
ION
CO
NN
EC
TO
RJ1
7
2F8
2E10 2H9
JUNCTION CONNECTORJ13
YYY
BBB
Y
Y
Y
C5 4 C C3 C15 C17
1 2 3 4 5
P–G P–B G
BR
–B
G–B
C8
6
G–R
KUL KL LSW LSWE A– A+
DOOR LOCK MOTOR, DOOR KEY LOCK AND UNLOCK SWAND DOOR LOCK DETECTION SW FRONT RH
D19
A16 7 A A8 B8 A1
LG
LG–R
LG–B O
B–O
A10
Y–R
PMHR PM+R PMVR PVC VSSR HSSR PE2B
R
13 A
A1B4
A2B5
A6B6
A8 A9 A10 A11
(*7)
R17
REMOTE CONTROL MIRROR RH
BA ,
Y
Y
R–B
R–G
Y
Y
R–B
R–G
B–R
G–W
G–W
B–R
O
B–R
G–W
G–W
B–R
O
A9
IK16
O
O
MPX1
F11
FRONT PASSENGER DOOR ECU
BA , F12 C, F13
* 6 : W/ DRIVING POSITION MEMORY* 7 : W/O DRIVING POSITION MEMORY* 8 : W/ RETRACTION
M
UN
LOC
K
LOC
K
LOC
KD
ETE
CTI
ON
MH COM MV VC VSR HSR E1
(*6)14 A5 A
MR+
R–G
C9 C
L
18
MR–
(*8)
( *8)
MR MF
MULTIPLEX COMMUNICATION SYSTEM
BA18 BA16 BA111
BA15 BA14
IC113IC314
11 12
Y
R–B
Y–G
R–B
Y
R–B
Y
Y
R–B
R–G
Y
R–G
PCT1 RRLP
5 15 9
A A
A
O
B–R
G–W
G–W
O
B–R B–R
O
G–W
B–R
B–R
B–R
B–R
G–WO
O
G–W B–R
MPX1 CPUB SIG
JUNCTIONCONNECTOR
J 8
20AD RRDOOR
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1E6
BA12
14
L–R
L–R
L–R
BDR
12 1 2
8 18 2 7
R–W
W–B
L–W R
CTY CTYE CTYB CYL
DOOR COURTESYSW REAR LH
D15DOOR COURTESYLIGHT REAR LH
D11
BJ
BA19
25
W–B
W–B
W–B
21 10 23 22 24 1 13 17 19
432165432
BR
–BG
G–R
G–B
L–W
L–R
L–B
Y–R
W–B
PWE PCTO MDN AUTO MUP A– A+ LSW LSWE
POWER WINDOW CONTROL SW REAR LHP 9
DOOR LOCK MOTOR AND DOOR LOCKDETECTION SW REAR LH
D20
REAR DOOR LH ECUR12
L–O
4
L–O
MPX2
GND
16W
–B
WHE1
FRO
M A
SH
TRA
YIL
LUM
INA
TIO
NR
EA
R L
H
3 1 2 7 6
POWER WINDOW MOTOR REAR LH
E PCT D A U
M
LOC
KD
ETE
CTI
ON
M
UP DN LMT PLS SGND
B–R
L–O
O
G–W
B–R
BB111 BB16 BB13 BB18
IL31512 1 2
8 18 2 7
R–Y
W–B
L–W
R–W
CTY CTYE CTYB CYL
D16DOOR COURTESYSW REAR RH
DOOR COURTESYLIGHT REAR RH
D12
REAR DOOR RH ECUR13
20AP RRDOOR
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
2E6
BB12
14
L–R
BDRSIG CPUB MPX2
4159
B–R
G–W O L–R
L–R
L–O
L–O
B–R
5
L–O
L–O
O
G–W
B–R
BB15 BB14
IL35
21 10 23 22 24 19 17 1 13
432165432
G–R
G–BG
BR
–B
L–W
L–R
L–B
Y–R
W–B
PWE PCTO MDN AUTO MUP LSWE LSW A– A+
POWER WINDOW CONTROL SW REAR RHP10
DOOR LOCK MOTOR AND DOOR LOCKDETECTION SW REAR RH
D21
BMBL
BB19 BB110
25 20
GND SEL1W
–B
W–B
W–B
W–B
A
JUN
CTI
ON
CO
NN
EC
TO
R
J22
Y
R–G
1211
R–GY
R–GY
PCT1 RRLP
MPX1
IL116
O
16
W–B
WHE1
FRO
M A
SH
TRA
YIL
LUM
INA
TIO
NR
EA
R R
H
1 3 2 7 6
POWER WINDOW MOTOR REAR RH
E PCT D A U
M
LOC
KD
ETE
CTI
ON
M
DN UP LMT PLS SGND
MULTIPLEX COMMUNICATION SYSTEM
BC110 BC13 BC17 BC14
BA13IC22
L–Y
L–O
B–R
W–R
O L–O
B–R
L–O
L–O
B–R
L–O
(*7)
( *6)
( *6)
( *6)
( *6)
B11 B10 B8 B9
IC117
5AECU–B2
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
2F7
C
C
W–R
W–R
W–R
SYSBIGMPX1MPX2
JUNCTIONCONNECTOR
J18
A1
M
1
2
A2
PO
WE
R S
EA
T M
OT
OR
( DR
IVE
R’
S S
EA
T R
EC
LIN
ING
CO
NTR
OL)
P23
A5
M
1
2
A6
PO
WE
R S
EA
T M
OT
OR
( DR
IVE
R’
S S
EA
T R
EA
R V
ER
TIC
AL
CO
NTR
OL)
P22
A9
M
2
1
A10
PO
WE
R S
EA
T M
OTO
R( D
RIV
ER
’S
SE
AT
FR
ON
T V
ER
TIC
AL
CO
NTR
OL)
P20
B22
2
RCLR
Y–B
B21
3
RCLF
Y–R
B19
10
FUP
L–Y
B16
6
SLDR
L–B
B18
8
LDWN
Y
B17
7
LUP
Y–G
B15
9
SLDF
L
B7
5
FDWN
L–R
B5 B6
B 6
B4
B 6
B 6 B 6
BK
BC111
A
1 3 1 3
22
1
V
BRBRBR
BR BR
V
V–W
V
Y–G
VVB
R
BR
SSRLPVCCSSRR
POWER SEAT CONTROL SW(DRIVER’ S SEAT)
P16
PO
WE
R S
EA
T P
OS
ITIO
N S
EN
SO
R( D
RIV
ER
’S
SE
AT
RE
CLI
NIN
G C
ON
TR
OL)
P32
PO
WE
R S
EA
T P
OS
ITIO
N S
EN
SO
R( D
RIV
ER
’S
SE
AT
RE
AR
VE
RTI
CA
L C
ON
TR
OL)
P31
JUNCTIONCONNECTOR
J20
RCL– RCL+ LFT– LFT+ FRV– FRV+
L
L–R
Y–R
Y–G
W–G
W–R
W–R
Y–GL–R
P18
POWER SEAT ECU
BA , P19
RCLR RCLF FUP SLDR LDWN LUP SLDF FDWN
E
A3
M
2
1
A4
PO
WE
R S
EA
T M
OT
OR
( DR
IVE
R’
S S
EA
T S
LID
E C
ON
TRO
L)
P24
SLD– SLD+
B–R B
B
30AD P/SEAT
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1E9
BC11
A8
M
2
1
B
B
2
3
1
4B
L–W
L–W
L–W
W–B
L–O
L–B
POWER SEAT MOTOR(DRIVER’ S SEAT LUMBAR SUPPORT CONTROL)
P21
LUMBAR SUPPORT CONTROL SW(DRIVER’ S SEAT)
L 8
L–W
+B
P18
POWER SEAT ECU
BA , P19
B3
B 6
B 6
1 3
2
LG–R
VB
R
SSFV
PO
WE
R S
EA
T P
OS
ITIO
N S
EN
SO
R( D
RIV
ER
’S
SE
AT
FR
ON
T V
ER
TIC
AL
CO
NTR
OL)
P30
B14
B 6
1 3
2
BR
LG
VB
R
SSRS
PO
WE
R S
EA
T P
OS
ITIO
N S
EN
SO
R( D
RIV
ER
’S
SE
AT
SLI
DE
CO
NTR
OL)
P33
B13 A7
BJ
BC112
A
AA
W–B
W–BBR
W–B
W–B
BR
SGND GND
V
BR
V
JUNCTIONCONNECTOR
J23
* 6 : W/ DRIVING POSITION MEMORY* 7 : W/O DRIVING POSITION MEMORY
JUNCTIONCONNECTOR
J23
REAR
FRONT
MULTIPLEX COMMUNICATION SYSTEM
MULTIPLEX COMMUNICATION SYSTEMThe system is comprised of the communication modes of the body ECU No.1, body ECU No.2, driver door ECU, frontpassenger door ECU, rear door LH ECU, rear door RH ECU, engine control module, combination meter, A/C controlassembly, navigation ECU, tilt and telescopic ECU, power seat ECU and moon roof control ECU. The body electricalsystems are controlled by a serial communication in which each ECU is linked to another via a single communication line.This system is also equipped with a self–diagnosis function.The table below shows the systems under the control of the MPX communication system and related ECUs (Communicationnodes).
Bod
y E
CU
No.
1B
ody
EC
U N
o.2
Driv
er D
oor
EC
UF
ront
Pas
seng
er D
oor
EC
UPower Window
Theft Deterrent and Door Lock ControlWireless Door Lock Control
12
Light Auto Turn OffAutomatic Light Control
Illuminated Entry
Remote Control MirrorShift LockFog Light
Seat Belt Warning
Key ReminderLuggage Compartment Door Opener
1
––
–
–12–––2
222111
1–211–2
122222
2–1
1
1––2–
2222–2–
–
––2–
2222–2
–2
2222
––
––
––
––
––– –
––
2
–––
––
––
–––
––
2–
––
1–
–
–––
2–1
––
–––
–
–
–––
–––
––
–––
–
–
–
––
–––
––
–––
–
–
–––
–
–
––
–––
–
–
–––
–
–
––
––
–
––
–––
–2
2
2
1 : Master control 2 : Sub control
Rea
r D
oor
LH E
CU
Rea
r D
oor
RH
EC
UE
ngin
e C
ontr
ol M
odul
eC
ombi
natio
n M
eter
A/C
Con
trol
Ass
embl
yN
avig
atio
n E
CU
Tilt
and
Tel
esco
pic
EC
UP
ower
Sea
t EC
UM
oon
Roo
f Con
trol
EC
UECU
SYSTEM
Memory System
SYSTEM OUTLINE
1. COMMUNICATION OUTLINECommunication is implemented among the body No.1, No.2, driver door, front passenger door, tilt and telescopic, navigation,A/C control assembly, moon roof, power seat, engine control ECUs.Upon receiving signals from applicable switches such as the door lock control switch or door courtesy light switch, each ECUdetermines the conditions of the switches as well as of the doors, and after converting this information into digital signals,outputs them to other ECUs via serial data communication. The ECU that receives these digital signals determines theconditions of the switches and doors so that it can implement various controls such as to activate a door lock motor.However, if there are no changes in the input signals because no doors were opened and no switches were used within 30seconds, the body ECU interrupts the communication to save electricity. Following this interruption, any changes in the inputsignals will cause the communication to resume.For details please refer to the new car features and repair manuals.
BODY ECU NO.21–GROUND : Approx. 12 volts with ignition SW at ON or ST position8–GROUND : Always approx. 12 volts
11–GROUND : Always continuity
B5 (A) BODY ECU NO.11–GROUND : Approx. 12 volts with ignition SW at ON or ST position4–GROUND : Always approx. 12 volts8–GROUND : Always approx. 12 volts
11–GROUND : Always continuity(A)15–GROUND : Approx. 12 volts with ignition SW at ACC or ON position
D22 (A), D24 (C) DRIVER DOOR ECU(C) 2–GROUND : Approx. 12 volts with ignition SW at ON or ST position(C) 3–GROUND : Always approx. 12 volts(A) 1–GROUND : Always approx. 12 volts(C)12–GROUND : Always continuity
F11 (A), F13 (C) FRONT PASSENGER DOOR ECU(A) 2–GROUND : Approx. 12 volts with ignition SW at ON or ST position(A) 3–GROUND : Always approx. 12 volts(C) 1–GROUND : Always approx. 12 volts(A)12–GROUND : Always continuity
R12 REAR DOOR LH ECU9–GROUND : Approx. 12 volts with ignition SW at ON or ST position
15–GROUND : Always approx. 12 volts14–GROUND : Always approx. 12 volts25–GROUND : Always continuity
R13 REAR DOOR RH ECU9–GROUND : Approx. 12 volts with ignition SW at ON or ST position
15–GROUND : Always approx. 12 volts14–GROUND : Always approx. 12 volts20–GROUND : Always continuity25–GROUND : Always continuity
SERVICE HINTS
MULTIPLEX COMMUNICATION SYSTEM
: PARTS LOCATION
Code See Page Code See Page Code See Page
A13 40 F11 A 42 P12 43
A30 40 F12 B 42 P13 43
B136 (1UZ–FE) F13 C 42 P16 44
B138 (2JZ–GE) G5 42 P18 A 44
B5 A 40 H18 40 P19 B 44
B6 A 40 I21 41 P20 44
B7 44 I24 42 P21 44
B8 44 I25 42 P22 44
C8 40 J6 41 P23 44
C11 40 J7 41 P24 44
C12 A 40 J8 41 P30 44
C13 B 40 J9 41 P31 44
C14 40 J10 41 P32 44
D4 40 J13 41 P33 44
D5 40 J14 41 R6 41
D8 42 J15 41 R7 41
D9 42 J17 41 R12 43
D10 42 J18 41 R13 43
D11 42 J20 42R16
A 43
D12 42 J22 42R16
B 43
D13 42 J23 44R17
A 43
D14 42 J24 44R17
B 43
D15 42 L1 41 S4 41
D16 42 L4 43 S5 41
D17 42 L5 43 S6 41
D18 42 L6 43 S11 41
D19 42 L7 43 S18 44
D20 42 L8 44T1
37 (1UZ–FE)
D21 42 M3 41T1
39 (2JZ–GE)
D22 A 42 M5 43 T5 41
D23 B 42 M7 41 U1 41
D24 C 42 N6 43 V8 43
D25 42 P4 41 V9 43
E5 D 38 (2JZ–GE) P7 43W4
37 (1UZ–FE)
E7 F 36 (1UZ–FE) P8 43W4
39 (2JZ–GE)
E936 (1UZ–FE) P9 43 W5 43
E938 (2JZ–GE) P10 43
E12 40 P11 43
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
2 23 Engine Room No.2 R/B (Engine Compartment Left)
4 25 Passenger Side R/B (Right Kick Panel)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1B 26 Cowl Wire and Driver Side J/B (Left Kick Panel)
1D 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1E 26 Floor No.2 Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
1K 26 Engine Room Main Wire and Driver Side J/B (Left Kick Panel)
2B 28 Engine Room Main Wire and Passenger Side J/B (Right Kick Panel)
2D 28 Roof Wire and Passenger Side J/B (Right Kick Panel)
2E 28 Floor No.1 Wire and Passenger Side J/B (Right Kick Panel)
2F 28
2G29
Cowl Wire and Passenger Side J/B (Right Kick Panel)
2H29
g ( g )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IB1 50 Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC1
IC2 50 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
IC3
( )
IE150 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IE250 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
II2 52 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
IJ152 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IJ252 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IK1 52 Front Door RH Wire and Cowl Wire (Right Kick Panel)
IL152 Floor No 1 Wire and Cowl Wire (Right Kick Panel)
IL352 Floor No.1 Wire and Cowl Wire (Right Kick Panel)
BA1 54 Rear Door LH Wire and Floor No.2 Wire (Under the Center Pillar LH)
BB1 54 Rear Door RH Wire and Floor No.1 Wire (Under the Center Pillar RH)
BC1 56 Floor No.2 Wire and Front Seat LH Wire (Under the Driver’s Seat)
BD1 56 Floor No.1 Wire and Front Seat RH Wire (Under the Front Passenger’s Seat)
: GROUND POINTS
Code See Page Ground Points Location
EB46 (1UZ–FE)
Left FenderEB48 (2JZ–GE)
Left Fender
IF 50 Left Kick Panel
IG 50 Left Side of the Cowl Panel
II 50 Right Side of the Cowl Panel
BJ 54 Rear Floor Partition Panel LH
BK 54 Quarter Panel LH
BL 54 Rear Floor Partition Panel RH
BM 54 Quarter Panel RH
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I152 Cowl Wire
B2 54 Roof Wire
I652 Cowl Wire
B6 56 Front Seat LH Wire
MULTIPLEX COMMUNICATION SYSTEM
5 X X
X
X 16
1 X 3 4
1 2
21 3 4 5 6 7 8 9 1011 X 13
14 15 X171819 2021 X X X X
1
4 X
X XX X X
X X 4
X X X X
X
A B
X
6 X XX
X
X
XX
XX
X
13
X X
X 1314
12
X
15
X
16
X X X X X X X
X 7 X X X X
X5X 1 2
21 3 4 5 6 7 X 9 10 X12 13
X 15 16171819 2021222324 25
1 2 3
1 2 1 21 2
A13BLACK GRAY
B5 (A)
B6 (A) B7 B8YELLOW
C11 C12 (A) C13 (B) C14
D4GRAY
D9GRAY
GRAY GRAY GRAYD10 D11 D12
A30 B1
C8
D5 D8
D13 D14 D15
1
4 X
1 2 1 2 1 2
2 X
X1 1
1 2 3 4 1 2 3 4 5 6 1 2 3 4 5 6
1 2 3 4 1 2 3 41 2 4 5
10 11 13 X
3
12
986
81715
7
161 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16
1 2 3 4 X X 7 8 9
10 X 12 131415 16 X 18
1 2 1 3 X X 7
X X X X
X X X X
X X X 28
X
27
X X X X X X 11 X X
24 1 2 3 X X X 7 8 9
10 X 12 13 X X 16 X 18
1 X 3 X 5 X 7
X
X
X
X X 10X X X 4 5 6 X 8
X X X 12 13 14 15 16
1 2
1 2
1
1 2 4 5
10 11 13 X
3
12
986
81715
7
16 1
GRAYD17
BLACK BLACK
BLACK BLACK GRAY GRAY
GRAY
BLACK BLACK
(2JZ–GE)
(1UZ–FE)
BLUE
GRAY
BLACKGRAY GRAYG5
D16 D18 D19
D20 D21 D22 (A) D23 (B)
D24 (C) D25 E5 (D)
E7 (F) E9 E12 F11 (A)
F12 (B) F13 (C) H18
MULTIPLEX COMMUNICATION SYSTEM
1 2
A A A AA A A B BA A A B B B B B
A A
A A A A
C
CC
CC
A
A A
AAAA A A A C C
A A C C
C
CC
CC
XX
XA
A A
A A A A AA A A A A A A A
C
CC
CC
BB
D
B
DD
D
C
CC
CC
BB
B
B
B B B B
A A
A A A A
A A
A A A A
123X
123X
1 2
4X
1 2
BBAAAA A A B B B B
BB
B B B B
1 2 1 2 X 2
X 2 X
X 8 X X X X X
I21BLACKGRAY
J6
(1UZ–FE) (2JZ–GE) ORANGE
J13 J14 J15
J17 J20 J22
I24 I25
BLUE
J23 L1 L4BLACK
J24
L6GRAY
L8 M5BLUE
(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7) (Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7) (Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7) (Hint : See Page 7)
J7 J8
J9 J9 J10
J18
L5
L7 M3
1 2 3 4
3 4
M7DARK GRAY
1 21 1
23X
X 2
3 4 5 6
X 2
3 4 5 6
BLUEP4 P7 P8 P9N6
X 2
3 4 5 6X 2 3 4 5 6 7 X
X 10 11 12 13 14 15 16 17 18 X X
1 2
3 4
5 X
1 2 3 X
5 6 7 8 9 10X X 3 4 5 6 7 8 91011 X13141516171819 X2122
1 2 3 4
5 6 7 8 9 101 2
1 2 1 2 1 2 1 2 1 32 1 32
1 32
1 2
3 4
5 X
1 32
21 X 4 5 X 7 8 9 101112 13
14 15 16171819 X 21222324 25
X X X X 7 8 9 XX 2 X X
21 X 4 5 X 7 8 9 101112 13
14 15 16171819 2021222324 25125
6X8910114
XXX 6 5 4
P10 P11 P12 P13
BLACKP18 (A) P19 (B)
ORANGE
P21 P22 P23 P24ORANGE
P31
P32 P33
R12
BLACKR7
R13(w/ Driving Position Memory)
(w/o Driving Position Memory)
P16 P20
P30
R6
R16 (A)
R16 (B)
1
87X
S4(w/ Driving Position Memory) (w/o Driving Position Memory)
R17 (A) R17 (B)
XXX 6 5 4
125
6X89101141
MULTIPLEX COMMUNICATION SYSTEM
1 2 1 2
1
2
1 2
1
6 7 X
2
1 1 2 1 21 2 1 X 3 4 5 X 7
BLACK BLUE GREEN BLACK GRAY
V8 V9BLACK
W5
S6 S11 S18 T1 T5
W4
BLACKS5
U1
MEMO
POWER SEAT (DRIVER’S SEAT w/ DRIVING POSITION MEMORY)
15AECU–IG
1E2 1H5 1H6 1H11
A19
IE18 IE117 IJ110
II IF
1F13 1G6
A111
A
6 7
2
8
16 5
A
A
1 98
A
A
B–R
B–R
G–W
L–O
GND GSWO
L
O
W–B
W–B
W–B
W–B
W
MPX2MPX1BECUIG
B–R
B–R
G–W L–O
W WL W
W
W
L–R
W–B
W–B
W–B
W–B
O
( *2)
( *1)
TILT ANDTELESCOPIC ECU
T 5
C13COMBINATIONMETER
B 6
BODY ECU NO. 2
A(*
1)
JUNCTIONCONNECTOR
JUNCTIONCONNECTOR
A/C CONTROL ASSEMBLY
MU
LTI–
DIS
PLA
Y
J17
J 6
A13
M 3
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
MPX2 MPX1
MPX2
MPX1
MPX– MPX+
211
15ARADIONO. 2
1H10
10AMPX–B
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
2B82G4
I 6
I 6
D28F11
F24D27
(*3)(*4)
(*3)(*4)
2F11
A15
IJ13
A3
2G6 2F13
II
2F2
20AP FR DOOR
FROM POWER SOURCESYSTEM (SEE PAGE 60)
11
A
2
4
D
B
D
BB
8 1
AA
BBB
B–R
B–R
G–W
L–O
GSW GND BSUB
L
O
W–B
W–B
B–R
B–R
B–R
G–W
L–O
G–W
L–O
B–R B–R
L–B
W–B
W–B
MPX1 BECU IG MPX2 ACC
LW
G–W
G–W
G–W
G–W
B–R
GR
GR
B–R
L–B
W–B
W–B
W–B
W–B
O
B 5
BODY ECU NO. 1
A
JUNCTIONCONNECTOR
JUNCTIONCONNECTOR
JUNCTIONCONNECTOR
J 7 J15J13
JUNCTIONCONNECTOR
J10
* 1 : W/ LEXUS NAVIGATION SYSTEM* 2 : W/O LEXUS NAVIGATION SYSTEM
* 3 : 1UZ–FE* 4 : 2JZ–GE 1
G–W
E 5
EN
GIN
E C
ON
TRO
L M
OD
ULE
FD
, E
7
2H11
9A19
W
MPX1
MPX2
POWER SEAT (DRIVER’S SEAT w/ DRIVING POSITION MEMORY)
20AD FRDOOR
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1F2
IB113 IB11 IB16 IB15 IB17
C2 C3 C9 A1 C18
C12 A16 C15 C14 C4
IB14
1 3 5 7
B–R
B–R
B–R
G–W
L–O
G–W
L–O
L–B
W–B
W–B W–B
L–B
L–O
G–W
B–R
O
B–R
L–B OL–O
G–WB–R
GR
P–BP
BR
–W
W–B
W–B
L–O
B–R
L–B O
L–B
GND MSWE M1 M2 MM
SIG CPUB MPX1 BDR MPX2
D22
DRIVER DOOR ECU
CA , D24
DRIVING POSITION MEMORY SWD25
ME
MO
RY
1
ME
MO
RY
2
SE
T
E M1 M2 MRY
IK15 IK17 IK11 IK113 IK16 BA18
IC315
BB13
IL116
BB18
IL315
C1 A18 A3 A2 A9
A12
IK14
5445
A A
L–B
L–O
G–W
B–R
O
B–R
L–O
L–O
B–R
L–B
L–O
G–W B–R O
W–B
W–B
L–OOL–OO
OO
O L–O
O
L–B
L–O
G–W
B–R O
GND
BDR MPX2 CPUB SIG MPX1 MPX1 MPX2 MPX2 MPX1
F11
FRONT PASSENGERDOOR ECU
CA , F13 R12REAR DOOR LH ECU
JUNCTION CONNECTORJ 8
W–B
REAR DOOR RH ECUR13
POWER SEAT (DRIVER’S SEAT w/ DRIVING POSITION MEMORY)
5AECU–B2
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
2F7
30AD P/SEAT
1E9
BC14BC17BC13BC110
B11 B10 B8 B9
BA13IC22 IC117
A8
BC11
M
2
1
B5 B6 B4 B3
B 6 B 6 B 6
B 6 B 6
BK
BC111
B 6
B14 B13
22 2 2
B
C
31313131
4B
C
2
3
1
A
B
L–O
L–O
B–R
L–W
L–O
L–B
W–B
BRBRBR
BR BR
VV V
BR
O L–O
B–R
W–R
L–W
W–R
B–R
W–R
W–R
L–W
L–W
V–W
V
Y–G V
LG–R V
VB
R
BR
BR
LG VB
R
BR
L–Y
POWER SEAT MOTOR(DRIVER’ S SEAT LUMBAR SUPPORT CONTROL)
LUMBAR SUPPORTCONTROL SW(DRIVER’ S SEAT)
JUNCTIONCONNECTOR
JUN
CTI
ON
CO
NN
EC
TOR
J18
J23
L 8
P21
P18
POWER SEAT ECU
BA , P19
J20
P32
P31
P30
JUNCTIONCONNECTOR
PO
WE
R S
EA
T P
OS
ITIO
N S
EN
SO
R( D
RIV
ER
’S
SE
AT
RE
CLI
NIN
G C
ON
TR
OL)
PO
WE
R S
EA
T P
OS
ITIO
N S
EN
SO
R( D
RIV
ER
’S
SE
AT
RE
AR
VE
RTI
CA
L C
ON
TRO
L)
PO
WE
R S
EA
T P
OS
ITIO
N S
EN
SO
R( D
RIV
ER
’S
SE
AT
FR
ON
T V
ER
TIC
AL
CO
NT
RO
L)
PO
WE
R S
EA
T P
OS
ITIO
N S
EN
SO
R( D
RIV
ER
’S
SE
AT
SLI
DE
CO
NTR
OL)
P33
REAR
FRONT
MPX2 MPX1 IG SYSB +B
SSRR PVCC SSRL SSFV
B 6
SSRS SGND
W–B
BR
L–O
B22B21B19B16 B18B17B15 B7
A1 A2 A5 A6 A9 A10 A3 A4
A7
M
1
2
M
1
2
M
2
1
M
2
1
BJ
BC112
A
A
W–B
Y–B
Y–RL–Y
L–B Y
Y–GL
L–R
L
L–R
Y–R
Y–G
W–G
W–R
B–R B
W–B
W–B
W–B
W–B
A
PO
WE
R S
EA
T M
OTO
R( D
RIV
ER
’S
SE
AT
RE
CLI
NIN
G C
ON
TRO
L)
PO
WE
R S
EA
T M
OTO
R( D
RIV
ER
’S
SE
AT
RE
AR
VE
RTI
CA
L C
ON
TRO
L)
PO
WE
R S
EA
T M
OTO
R( D
RIV
ER
’S
SE
AT
FRO
NT
VE
RTI
CA
L C
ON
TR
OL)
PO
WE
R S
EA
T M
OT
OR
( DR
IVE
R’
S S
EA
T S
LID
E C
ON
TRO
L)
JUN
CT
ION
CO
NN
EC
TOR
P22
P20
P24
J23
P18
POWER SEAT ECU
BA , P19
SLDF SLDR FUP FDWN LUP LDWN RCLF RCLR
P23
238751069
FRO
NT
RE
AR
UP
DO
WN
UP
DO
WN
FRO
NT
RE
AR
1BR
SLIDE FRONT VERTICAL REAR VERTICAL RECLINING
POWER SEAT CONTROL SW(DRIVER’ S SEAT)
P16
RCL– RCL+ LFT– LFT+ FRV– FRV+ SLD– SLD+
GND
E
SLDF SLDR FUP FDWN LUP LDWN RCLF RCLR
POWER SEAT (DRIVER’S SEAT w/ DRIVING POSITION MEMORY)
1. MANUAL SLIDE OPERATIONWhen the slide SW of the power seat control SW is pressed to FRONT position, the signal is input to TERMINAL (B) 15 ofthe power seat ECU. This activates the power seat ECU to flow the current into TERMINAL (A) 3 of the power seat ECU toTERMINAL 2 of the power seat motor (Slide control) to TERMINAL 1 to TERMINAL (A) 4 of the ECU to GROUND, to movethe seat forward while the power seat control SW is kept pressed.When the slide SW of the power seat control SW is pressed to the REAR position, the signal is input to TERMINAL (B) 16 ofthe power seat ECU. This activates the ECU to flow the current into TERMINAL (A) 4 of the power seat ECU, TERMINAL 1of the power seat motor (Slide control) to TERMINAL 2 to TERMINAL (A) 3 of the ECU to GROUND, to move the seat backbackward.At this time, the power seat position sensor (Slide control) detects the seat position and always inputs it to TERMINAL (B) 14of the power seat ECU.
2. MANUAL RECLINING CONTROLWhen the reclining SW of the power seat control SW is pressed forward, the signal is input to TERMINAL (B) 21 of the powerseat ECU. This activates the power seat ECU to flow the current into TERMINAL (A) 1 of the power seat ECU to TERMINAL1 of the power seat motor (Reclining control) to TERMINAL 2 to TERMINAL (A) 2 of the ECU to GROUND, to tilt the seatback forward while the power seat control SW is kept pressed.When the reclining SW of the power seat control SW is pressed backward, the signal is input to TERMINAL (B) 22 of thepower seat ECU. This activates the ECU to flow the current into TERMINAL (A) 2 of the power seat ECU, TERMINAL 2 ofthe power seat motor (Reclining control) to TERMINAL 1 to TERMINAL (A) 1 of the ECU to GROUND, to tilt the seatbackward.At this time, the power seat position sensor (Reclining control) detects the seat back position and always inputs it toTERMINAL (B) 5 of the power seat ECU.
3. MANUAL FRONT VERTICAL CONTROLWhen the front part of the slide SW of the power seat control SW is pushed up, the signal is input to TERMINAL (B) 19 of thepower seat ECU. This activates the power seat ECU to flow the current into TERMINAL (A) 10 of the power seat ECU toTERMINAL 1 of the power seat motor (Front vertical control) to TERMINAL 2 to TERMINAL (A) 9 of the ECU to GROUND, toraise the front part of the seat cushion while the power seat control SW is kept pressed.When the front part of the slide SW of the power seat control SW is pushed down, the signal is input to TERMINAL (B) 7 ofthe power seat ECU. This activates the power seat ECU to flow the current into TERMINAL (A) 9 of the power seat ECU,TERMINAL 2 of the power seat motor (Front vertical control) to TERMINAL 1 to TERMINAL (A) 10 of the ECU to GROUND,to lower the front part of the seat cushion while the power seat control SW is kept pressed.At this time, the power seat position sensor (Front vertical control) detects the seat cushion position (Front) and alwaysinputs the signal to TERMINAL (B) 3 of the power seat ECU.
4. MANUAL REAR VERTICAL OPERATIONWhen the rear part of the slide SW of the power seat control SW is pushed up, the signal is input to TERMINAL (B) 17 of thepower seat ECU. This activates the power seat ECU to flow the current into TERMINAL (A) 6 of the power seat ECU toTERMINAL 2 of the power seat motor (Rear vertical control) to TERMINAL 1 to TERMINAL (A) 5 of the ECU to GROUND, toraise the seat while the power seat control SW is kept pressed.When the rear part of the slide SW of the power seat control SW is pushed down, the signal is input to TERMINAL (B) 18 ofthe power seat ECU. This activates the ECU to flow the current into TERMINAL (A) 5 of the power seat ECU to TERMINAL 1of the power seat motor (Rear vertical control) to TERMINAL 2 to TERMINAL (A) 6 of the ECU to GROUND, to lower theseat while the power seat control SW is kept pressed.At this time, the power seat position sensor (Rear vertical control) detects the seat cushion position (Rear) and always inputsthe signal to TERMINAL (B) 4 of the power seat ECU.
5. MANUAL LUMBAR SUPPORT OPERATIONWhen the lumbar support control SW is pressed forward, the current flows from the D P/SEAT fuse into TERMINAL 4 toTERMINAL 1 of the lumbar support control SW to TERMINAL 2 of the power seat motor (Lumbar support control) toTERMINAL 1 to TERMINAL 2 of the SW to TERMINAL 3 to GROUND, to move the lumbar support forward.When the SW is pressed backward, the current from the D P/SEAT fuse flows into TERMINAL 4 to TERMINAL 2 of thelumbar support control SW to TERMINAL 1 of the power seat motor (Lumbar support control) to TERMINAL 2 to TERMINAL1 of the SW to TERMINAL 3 to GROUND, to move the lumbar support backward.
6. DRIVING POSITION MEMORY FUNCTIONEach position sensor in the seat detects the number of rotations of the relevant motor (Seat movement amount) and inputs itto the ECU. This makes it possible to store and recall the seat position by operating the position memory SW. The drivingseat position is stored and recalled through communication control of the body ECU and door ECU etc.
SYSTEM OUTLINE
P18 (A), P19 (B) POWER SEAT ECU(B) 9–GROUND : Always approx. 12 volts(A) 8–GROUND : Always approx. 12 volts(A) 7–GROUND : Always continuity(B)13–GROUND : Always continuity(B) 8–GROUND : Approx. 12 volts with ignition SW at ON or ST position(A) 1–GROUND : Approx. 12 volts with driver’s seat at front reclining operation(A) 2–GROUND : Approx. 12 volts with driver’s seat at rear reclining operation(A)10–GROUND : Approx. 12 volts with driver’s seat at front vertical up operation(A) 9–GROUND : Approx. 12 volts with driver’s seat at front vertical down operation(A) 6–GROUND : Approx. 12 volts with driver’s seat at rear vertical up operation(A) 5–GROUND : Approx. 12 volts with driver’s seat at rear vertical down operation(A) 3–GROUND : Approx. 12 volts with driver’s seat at front slide operation(A) 4–GROUND : Approx. 12 volts with driver’s seat at rear slide operation
P16 POWER SEAT CONTROL SW (DRIVER’S SEAT)3–1 : Closed with Driver’s seat at front reclining operation2–1 : Closed with Driver’s seat at rear reclining operation
10–1 : Closed with Driver’s seat at front vertical up operation5–1 : Closed with Driver’s seat at front vertical down operation7–1 : Closed with Driver’s seat at rear vertical up operation8–1 : Closed with Driver’s seat at rear vertical down operation9–1 : Closed with Driver’s seat at front slide operation6–1 : Closed with Driver’s seat at rear slide operation
L8 LUMBAR SUPPORT CONTROL SW (DRIVER’S SEAT)4–GROUND : Always approx. 12 volts3–GROUND : Always continuity
: PARTS LOCATION
Code See Page Code See Page Code See Page
A13 40 J8 41 P20 44
B5 A 40 J10 41 P21 44
B6 A 40 J13 41 P22 44
C13 40 J15 41 P23 44
D22 A 42 J17 41 P24 44
D24 C 42 J18 41 P30 44
D25 42 J20 42 P31 44
E5 D 38 (2JZ–GE) J23 44 P32 44
E7 F 36 (1UZ–FE) L8 44 P33 44
F11 A 42 M3 41 R12 43
F13 C 42 P16 44 R13 43
J6 41 P18 A 44 T5 41
J7 41 P19 B 44
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
SERVICE HINTS
POWER SEAT (DRIVER’S SEAT w/ DRIVING POSITION MEMORY)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1E 26 Floor No.2 Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
2B 28 Engine Room Main Wire and Passenger Side J/B (Right Kick Panel)
2F 28
2G29
Cowl Wire and Passenger Side J/B (Right Kick Panel)
2H29
g ( g )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IB1 50 Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC1
IC2 50 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
IC3
( )
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IJ1 52 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IK1 52 Front Door RH Wire and Cowl Wire (Right Kick Panel)
IL152 Floor No 1 Wire and Cowl Wire (Right Kick Panel)
IL352 Floor No.1 Wire and Cowl Wire (Right Kick Panel)
BA1 54 Rear Door LH Wire and Floor No.2 Wire (Under the Center Pillar LH)
BB1 54 Rear Door RH Wire and Floor No.1 Wire (Under the Center Pillar RH)
BC1 56 Floor No.2 Wire and Front Seat LH Wire (Under the Driver’s Seat)
: GROUND POINTS
Code See Page Ground Points Location
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
BJ 54 Rear Floor Partition Panel LH
BK 54 Quarter Panel LH
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I6 52 Cowl Wire B6 56 Front Seat LH Wire
3 X X
X 15 19
1 X
X 19 X X X X
5 X X
X
X 16
1
X
1
X X X X
X X X X
X X X 28
X
27
X X X X X X 11 X X
24 2 3 X X X 9
X 12 X X X 18
1
X
A A A A B B B B B B B
A A
A A A A
6
2 3 4 X X 9
X 12 1415 X 18
1 X 3 X 5 X 7
A13 B5 (A) B6 (A)
C13GRAY GRAY BLUE
(2JZ–GE) (1UZ–FE) GRAY
GRAYJ6
GRAY BLACK
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
A A A A AA A A A A A A A
D
DD
D
AAAA A A B
B B B B
ORANGEJ13 J15 J17
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
BBAAAA A A B B B B C C
C C
A A
A A A A
BLUEJ20 J23 L8
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
D22 (A) D24 (C) D25
E5 (D) E7 (F) F11 (A)
F13 (C) J7 J8
J10
J18
1 2 3 4
2 X
X1 1
POWER SEAT (DRIVER’S SEAT w/ DRIVING POSITION MEMORY)
1 2 3 X
5 6 7 8 9 10
X X 3 4 5 6 7 8 91011 X13141516171819 X2122
1 2 3 4
5 6 7 8 9 10
1 2 1 2 1 2 1 2
1 2 1 32 1 32 1 32
2 X
X 8 X X X X X
BLUE
P19 (B)
P18 (A)BLACK
ORANGEP21 P22 P23
P24ORANGE
P31 P32 P33
X 4 5 X
6 7 X
X 4 5 X
X
R12 R13GRAY
1 32
M3 P16
P20
P30
T5
MEMO
POWER SEAT (DRIVER’S SEAT w/o DRIVING POSITION MEMORY)
M
2
1
M
2
1
M
1
2
M
1
2
BJ
BC112
30AD P/SEAT
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1E9
1 2
2 1
L–B
L–O
P21POWER SEAT MOTOR(DRIVER’ S SEAT LUMBAR SUPPORT CONTROL)
B
9 6 10 5 7 8 3 2 4
A
B4
AA
B3
LUMBAR SUPPORT CONTROL SW(DRIVER’ S SEAT)
L 8
POWER SEAT CONTROL SW(DRIVER’ S SEAT)
P16
JUNCTIONCONNECTOR
J23
JUNCTIONCONNECTOR
J23
PO
WE
R S
EA
T M
OTO
R( D
RIV
ER
’S
SE
AT
SLI
DE
CO
NTR
OL)
P24
PO
WE
R S
EA
T M
OTO
R( D
RIV
ER
’S
SE
AT
FR
ON
T V
ER
TIC
AL
CO
NTR
OL)
P20
PO
WE
R S
EA
T M
OTO
R( D
RIV
ER
’S
SE
AT
RE
AR
VE
RTI
CA
L C
ON
TRO
L)
P22
PO
WE
R S
EA
T M
OTO
R( D
RIV
ER
’S
SE
AT
RE
CLI
NIN
G C
ON
TR
OL)
P23
1
L–WW–B
W–B
L–W
L–W
L–W
B
B–R
W–R
W–G
Y–G
Y–R L–R L
W–B
W–B
W–B
BC11
FR
ON
T
RE
AR
SLIDE FRONT VERTICAL REAR VERTICAL RECLINING
FR
ON
T
RE
AR
UP
DO
WN
UP
DO
WN
FR
ON
T
RE
AR
M
P16 POWER SEAT CONTROL SW (DRIVER’S SEAT)1–GROUND : Always approx. 12 volts4–GROUND : Always continuity
L8 LUMBAR SUPPORT CONTROL SW (DRIVER’S SEAT)4–GROUND : Always approx. 12 volts3–GROUND : Always continuity
: PARTS LOCATION
Code See Page Code See Page Code See Page
J23 44 P20 44 P23 44
L8 44 P21 44 P24 44
P16 44 P22 44
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1E 26 Floor No.2 Wire and Driver Side J/B (Left Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
BC1 56 Floor No.2 Wire and Front Seat LH Wire (Under the Driver’s Seat)
: GROUND POINTS
Code See Page Ground Points Location
BJ 54 Rear Floor Partition Panel LH
1 2 3 4
5 6 7 8 9 10 1 2 1 2 1 2
1 2 1 2
BBAAAA A A B B B B
J23 L8BLACK ORANGE
P21BLUE
P23 P24
(Hint : See Page 7)
P16 P20 P22
1 2 3 4
SERVICE HINTS
POWER SEAT (FRONT PASSENGER’S SEAT)
M
1
2
M
1
2
M
2
1
M
1
2
BL
12 BD1
30AP P/SEAT
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
2E9
4 3
1 2
L–B
L–O
P26POWER SEAT MOTOR(FRONT PASSENGER’ S SEAT LUMBAR SUPPORT CONTROL)
A
9 6 5 10 8 7 3 2 4
B
A1
BB
A2
LUMBAR SUPPORT CONTROL SW(FRONT PASSENGER’ S SEAT)
L 9
POWER SEAT CONTROL SW(FRONT PASSENGER’ S SEAT)
P17
J24JUNCTIONCONNECTOR
JUNCTIONCONNECTOR
J24
PO
WE
R S
EA
T M
OTO
R( F
RO
NT
PA
SS
EN
GE
R’
S S
EA
T S
LID
E C
ON
TRO
L)
P29
PO
WE
R S
EA
T M
OTO
R( F
RO
NT
PA
SS
EN
GE
R’
S S
EA
T F
RO
NT
VE
RT
ICA
L C
ON
TRO
L)
P25
PO
WE
R S
EA
T M
OTO
R( F
RO
NT
PA
SS
EN
GE
R’
S S
EA
T R
EA
R V
ER
TIC
AL
CO
NT
RO
L)
P27
PO
WE
R S
EA
T M
OTO
R( F
RO
NT
PA
SS
EN
GE
R’
S S
EA
T R
EC
LIN
ING
CO
NTR
OL)
P28
1
LW–B
W–B
LL
LB
B–R
W–R
W–G
Y–G
Y–R L–R L
W–B
W–B
W–B
BD11
FR
ON
T
RE
AR
SLIDE FRONT VERTICAL REAR VERTICAL RECLINING
FR
ON
T
RE
AR
UP
DO
WN
UP
DO
WN
FR
ON
T
RE
AR
M
P17 POWER SEAT CONTROL SW (FRONT PASSENGER’S SEAT)1–GROUND : Always approx. 12 volts4–GROUND : Always continuity
L9 LUMBAR SUPPORT CONTROL SW (FRONT PASSENGER’S SEAT)1–GROUND : Always approx. 12 volts2–GROUND : Always continuity
: PARTS LOCATION
Code See Page Code See Page Code See Page
J24 44 P25 44 P28 44
L9 44 P26 44 P29 44
P17 44 P27 44
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
2E 28 Floor No.1 Wire and Passenger Side J/B (Right Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
BD1 56 Floor No.1 Wire and Front Seat RH Wire (Under the Front Passenger’s Seat)
: GROUND POINTS
Code See Page Ground Points Location
BL 54 Rear Floor Partition Panel RH
1 2 3 4
5 6 7 8 9 10 1 2 1 2 1 2
1 2 1 2
BBAAAA A A B B B B
J24 L9BLACK BLUE
P26 P27
P28 P29
(Hint : See Page 7)
P17 P25
1 2 3 4
SERVICE HINTS
POWER SOURCE
1 2
1
120A ALT
1 2
40A ABS NO. 2
1 2
30A H–LP CLN
1 2
20A RADIO NO. 1
1 2
5A ALT–S
1 2
25A EFI
1 2
10A TURN–HAZ
1 2
15A AM2
1 2
40A MAIN
1 2
15A TEL
1 2
15A ETCS
1 2
10A HORN
1
1
1
1
1
1
1
1
1
1
1 2
20A ECU–B1
1
4
2
3
1
1
1
1 2
30A DRL NO. 2 (*2)
1 II4
7
EB1
1
IA1
9
2B
2 10A DOME
5A ECU–B2
1 2
50A HEATER
1
1 2
50A FAN MAIN
1
1 2
60A ABS NO. 1
1
1
1
2A
1 15A TV
25A S/ROOF
30A P P/SEAT
20A P RR DOOR
20A P FR DOOR
1 2
30A DEFOG
1
3
2
5
IG RELAY
1
5
2
3
3
1
5
2
4
1 2
30A CDS FAN
1
1 2
30A RDI FAN
1
1
MIR RELAY
10A MIR HTR
20A SEAT HTR
HEAD LP RELAY
ENG MAIN RELAY
G
L–Y
G–R
W–R
W
B–Y
W–L
L–Y
L
B–R
B
W W
L
B
R
W–L
W–R
W–R
R–W
R–B
R–L
R–L
R–G
R–B
R–W R–W
W–R W–R
R–L
B–L
BA
TTE
RY
(* 2) (*2) (*2)
1
1 1
1
1
W–B B–O
R
W–B
11 2
1
11 2
1
15A H–LP L LWR
10A MPX–B
1 21
10A H–LP R UPR (*1)30A DRL NO. 1 (*2)
1 21
15A H–LP R LWR
11 2
1
10A H–LP L UPR (*1)
31 2
3
15A H–LP L UPR (*2)
1 23
15A H–LP R UPR (*2)
1
3
2
4
33
3
1K
1 7. 5A OBD
5
1
3
2
TAIL RELAY10A TAIL
7. 5A PANEL
5A SRS–B
15A FR FOG
10A FUEL OPN
15A STOP
30A D P/SEAT
20A D RR DOOR
20A D FR DOOR
1 21J
3 2
7
3
4
6
8
AM2
AM1
ACC
IG1
IG2
ST2
1J
1 10A HEATER
25A WIPER
10A GAUGE
20A WASHER
15A ECU–IG
15A RADIO NO. 2
15A SRS–ACC
15A CIG
1J4
5A STARTER
5A IGN
1F10
1J
6
A
AIGNITION SWI22
JUNCTIONCONNECTOR
J15
R–L
R–B
R–W
R–B
W
R
R–G
Y
R–L
R–G
R
L–Y
B–Y
L–Y
B–Y
B–W
B–W
B
W–L
W–R
W
R–W
B
B–W
W–R
W–R
W–R
(*2)
( *2)
(*2)
(*2)
G–W
R–B
( *1) (* 1)
(*2)
(*2)
(*2)
DIMMER DRLNO. 2 RELAY (*2)
40A AM1
* 2 : W/ DAYTIME RUNNING LIGHT* 1 : W/O DAYTIME RUNNING LIGHT
POWER SOURCE
HEAD LP RELAY (w/o DAYTIME RUNNING LIGHT)2–1 : Closed with light control SW at HEAD position or dimmer SW at FLASH position
HEAD LP RELAY (w/ DAYTIME RUNNING LIGHT)2–1 : Closed with light control SW at HEAD position or dimmer SW at FLASH position
Closed with engine running and parking brake released (Parking brake SW off)
TAIL RELAY5–3 : Closed with light control SW at TAIL or HEAD position
ENG MAIN RELAY1–2 : Closed with ignition SW at ON or ST position
I22 IGNITION SW2–3 : Closed with ignition key at ACC or ON position2–4 : Closed with ignition key at ON or ST position7–6 : Closed with ignition key at ON or ST position7–8 : Closed with ignition key at ST position
: PARTS LOCATION
Code See Page Code See Page Code See Page
I22 41 J15 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
3 24 Engine Room No.3 R/B (Engine Compartment Left)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1F 26Cowl Wire and Driver Side J/B (Left Kick Panel)
1J 27Cowl Wire and Driver Side J/B (Left Kick Panel)
1K 26 Engine Room Main Wire and Driver Side J/B (Left Kick Panel)
2A28 Engine Room Main Wire and Passenger Side J/B (Right Kick Panel)
2B28 Engine Room Main Wire and Passenger Side J/B (Right Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EB146 (1UZ–FE)
Cowl Wire and Relay Block Wire (Inside of the Engine Room No 3 R/B)EB148 (2JZ–GE)
Cowl Wire and Relay Block Wire (Inside of the Engine Room No.3 R/B)
IA1 50 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
II4 52 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
X 2 3 4
X 6 7 8
A A
A A
I22 J15
(Hint : See Page 7)
SERVICE HINTS
MEMO
POWER TILT AND POWER TELESCOPIC
ECUE VC MPX2
A
A
LW
Y–RY
94
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
673841
30AP P/SEAT
2F1
MSWGND MPX1
TILT AND TELESCOPICSW [COMB. SW]
C15
JUN
CTI
ON
CO
NN
EC
TO
R
10
J 6
L
II
A
IF
A
TILT DOWN
TELESCOSHORT
TILT UP
TELESCOLONG
+B
A
1G6
1F13
2F13
2G6
A
AA
W–BW–B
W–B
W–B
W–B
W–B
W–B
W–B
JUN
CTI
ON
CO
NN
EC
TOR
J10
W–B
M M
PO
WE
R T
ELE
SC
OP
ICM
OT
OR
PO
WE
R T
ILT
MO
TOR
W–B
6 5 4 3
TEM+ TEM– TIM+ TIM–
( *2)
MPX2
MPX1
2
IJ110
8
WW
W
L–R
( *1)
MU
LTI–
DIS
PLA
Y
( *1)
M 3
IE117
IE18
JUN
CT
ION
CO
NN
EC
TO
R
J17
5
25
11
2
16 B–R
G–W
W
L
MPX+
ECU–B IG
G–W B–R
WW
W
L
MPX–
CO
MB
INA
TIO
NM
ETE
R
C13
A/C CONTROLASSEMBLY
A13
T 5TILT AND TELESCOPIC ECU
15ARADIONO. 2
1H10
10AMPX–B
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
2B82G4
I 6
D28F11
F24D27
(*3)(*4)
(*3)(*4)
A15
IJ13
A3
2G6 2F13
II
11
A
2
D
D
8
AA
B
GSW GND
B–R
G–W
L–O
W–B
MPX1
BECU ACC
LW
G–W
G–W
G–W
GR
GR
W–B
W–B
W–B
W–B
O
B 5
BODY ECU NO. 1
A
JUNCTIONCONNECTOR
JUNCTIONCONNECTOR
J 7
J13
JUNCTIONCONNECTOR
J10
* 1 : W/ LEXUS NAVIGATION SYSTEM* 2 : W/O LEXUS NAVIGATION SYSTEM
* 3 : 1UZ–FE* 4 : 2JZ–GE
EN
GIN
E C
ON
TRO
L M
OD
ULE
BSUB
4
20AP FRDOOR
FROM POWER SOURCESYSTEM (SEE PAGE 60)
FE
5D
, E
7
1
A19
L
MPX1
MPX2
15AECU–IG
A
1H5 1H6
11
II IF
1F13 1G6
W–B
A1
GSWOGND
A
A
1 8
A W–B
MPX1BECUIG
B–R
G–W L–O
W–B
W–B
O
B 6
BODY ECU NO. 2
A
J17
JUN
CTI
ON
CO
NN
EC
TO
R
1H11
9
JUN
CTI
ON
CO
NN
EC
TOR
J 6
A19
MPX2
W
2F11
B
B
1
IG
B–R
JUNCTION CONNECTORJ15
BB
B
G–W
G–W
B–R
G–W
W
L
B–R
B–R
B–R
G–WB–R
POWER TILT AND POWER TELESCOPIC
20AD FRDOOR
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1F2
IB113IB11IB16 IB15
C2C3C9 A1
C12 A16 C15 C14 C4
IB14
1 3 5 7
B–R
G–W
L–O
W–B
L–B
L–O
G–W B–R
GR
P–BP
BR
–W
W–B
W–B
L–O
L–B
L–B
GND MSWE M1 M2 MM
SIGCPUBMPX1 BDR
D22
DRIVER DOOR ECU
A
DRIVING POSITION MEMORY SWD25
G–W B–R
D24, C
( *5)
( *5)
( *5)
( *5)
E M1 M2 MRY
ME
MO
RY
1
ME
MO
RY
2
SE
T
* 5 : W/ DRIVING POSITION MEMORY
This system provides the automatic tilt and telescopic mechanisms using the motor drive and ECU control, allowing variablesteering movement in the back and forth, and vertical directions. This makes it possible to set the steering to the desiredsteering position and move the steering to a position where the driver can easily get off the vehicle, allowing easier seating.Additionally, by linking the power seat and remote control mirror, an optimal driving position corresponding to the driver’sneeds can be stored into the memory.
1. AUTO RETURN OPERATIONWhen the ignition key is inserted into the key cylinder (The unlock warning SW is on), the signal is input to the tilt andtelescopic ECU through communication control of the body ECU and door ECU etc. This activates the ECU to automaticallyreturn the steering to the position set before the ignition key has been removed.
2. AUTO AWAY OPERATIONWhen the ignition key is turned from ON to OFF and removed from the key cylinder (The unlock warning SW is off), thesignal is input to the tilt and telescopic ECU through communication control of the body ECU and door ECU etc. Thisactivates the ECU to automatically move the steering to the top tilt step position and maximum telescopic retract position.
3. MANUAL TILT OPERATIONWhen the ignition key is inserted into the key cylinder, the tilt and telescopic can be adjusted.Tilt operationWhen the tilt and telescopic SW is pressed to TILT DOWN position, the current flows from TERMINAL 3 of the tilt andtelescopic ECU into TERMINAL 9 of the tilt and telescopic SW to TERMINAL 4 to TERMINAL 8 of the ECU, and the signal isinput to the ECU. This activates the ECU and starts the tilt control motor to lower the steering while the SW is kept pressed toTILT DOWN position.When the tilt and telescopic SW is pressed to TILT UP position, the current flows from TERMINAL 3 of the tilt and telescopicECU into TERMINAL 9 of the tilt and telescopic SW to TERMINAL 4 to TERMINAL 8 of the ECU, and the signal is input tothe ECU. This activates the ECU and starts the tilt control motor to raise the steering while the SW is kept pressed to TILTUP position.Telescopic operationWhen the tilt and telescopic SW is pressed to TELESCO LONG position, the current flows from TERMINAL 3 of the tilt andtelescopic ECU into TERMINAL 9 of the tilt and telescopic SW to TERMINAL 4 to TERMINAL 8 of the ECU, and the signal isinput to the ECU. This activates the ECU and starts the telescopic control motor to extend the telescopic while the SW iskept pressed to TELESCO LONG position.When the tilt and telescopic SW is pressed to TELESCO SHORT side, the current flows from TERMINAL 3 of the tilt andtelescopic ECU into TERMINAL 9 of the tilt and telescopic SW to TERMINAL 4 to TERMINAL 8 of the ECU, and the signal isinput to the ECU. This activates the ECU and starts the telescopic control motor to retract the telescopic while the SW is keptpressed to TELESCO SHORT position.
4. DRIVING POSITION MEMORY FUNCTIONThe pulse signals detected by the tilt and telescopic sensors are input to the ECU. This makes it possible to store and recallthe desired driving position through communication control of the body ECU and door ECU etc.
T5 TILT AND TELESCOPIC ECU5–GROUND : Always approx. 12 volts
10–GROUND : Always approx. 12 volts2–GROUND : Approx. 12 volts with ignition SW at ON or ST position1–GROUND : Always continuity4–GROUND : Always continuity
C15 TILT AND TELESCOPIC SW [COMB. SW]4–9 : Approx. 160 Ω with TELESCO LONG operation
Approx. 360 Ω with TILT UP operationApprox. 790 Ω with TELESCO SHORT operationApprox. 1.99 kΩ with TILT DOWN operation
SYSTEM OUTLINE
SERVICE HINTS
POWER TILT AND POWER TELESCOPIC
: PARTS LOCATION
Code See Page Code See Page Code See Page
A13 40 D24 C 42 J13 41
B5 A 40 E5 D 38 (2JZ–GE) J15 41
B6 A 40 E7 F 36 (1UZ–FE) J17 41
C13 40 J6 41 M3 41
C15 40 J7 41 T5 41
D22 A 42 J10 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
2B 28 Engine Room Main Wire and Passenger Side J/B (Right Kick Panel)
2F 28Cowl Wire and Passenger Side J/B (Right Kick Panel)
2G 29Cowl Wire and Passenger Side J/B (Right Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IB1 50 Front Door LH Wire and Cowl Wire (Left Kick Panel)
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IJ1 52 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
: GROUND POINTS
Code See Page Ground Points Location
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I6 52 Cowl Wire
5 X X
X
X 16
3 X X
X 15 19
1 X
X 19 X X X X
A13 B5 (A) B6 (A)
4 X
X X 9 X
B B B B B B B
A A
A A A A
A A A A AA A A A A A A A
B
B B B B
AAAA A A
2 X
X 8 X X X X X
1 2
5
3 4
6 7 8 X 10
X X X X
X X X X
X X X 28
X
27
X X X X X X 11 X X
24
1
X
6
2 4 X
X 14
3
12
9X
X15
1
D
DD
D
C13 C15
GRAY
J6
ORANGEJ15
J17BLUE GRAY
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)(Hint : See Page 7)
J7 J10
M3 T5
D22 (A)GRAY
D24 (C)GRAY
E5 (D) E7 (F)(2JZ–GE) (1UZ–FE)
J13
(Hint : See Page 7)
2 X
X1 1
POWER WINDOW
A1
1F13 1G6
II IF
IE18 IE117 IJ110
D27 (*4)F24 (*3)
F11 (*3)
D28 (*4)
IJ13
15AECU–IG
1E2 1H5 1H6 1E1
10ADOME
2E5
MULTI–DISPLAYM 3
JUN
CTI
ON
CO
NN
EC
TOR
J17
JUN
CT
ION
CO
NN
EC
TO
R
J 6
TILT
AN
DTE
LES
CO
PIC
EC
U
T 5
A/C
CO
NTR
OL
AS
SE
MB
LYA
13
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
O
L–O
G–W
G–W
B–R
B–R
W
L–Y
W
L
L–Y
LL
W
WWW
O
L–O
G–W
G–W
B–R
W–B
W–B
W–B
L–R
W
6 5
8 2
81
B–R
A
AA
7 16
W
(*2)
( *1)
( *1)
GSWO
MPX2GND
IG
COMBINATION METERC13
B 6 A
BODY ECU NO. 2E
5
EN
GIN
E C
ON
TRO
L M
OD
ULE
D
11
F,
E 7
1H11
9
MPX1BECU
A19
MPX2
MPX1
MPX+
MPX–
MPX2 MPX1
211
MPX2
MPX1
2G6 2F13
II IF BM
IL36 IL318 IL317
A5 A6 A4
A3
2G4 2B8 2E1
I 6
10AMPX–B
1
2F11 2E2
A15
15ARADIONO. 2
1H10
20AP FR DOOR
2F22G7
IB19
17
D
11 45
A A
3 4 5
8 1
D
BB
B
B
B
JUNCTIONCONNECTOR
J 7
JUNCTION CONNECTORJ15
JUNCTIONCONNECTOR
J13
JUNCTIONCONNECTOR
J22JUNCTIONCONNECTOR
J 6
A
A
JUN
CTI
ON
CO
NN
EC
TOR
J10
WIR
ELE
SS
DO
OR
LOC
K E
CU
W 5
B
2
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
FROM POWER SOURCE SYSTEM(SEE PAGE 60)
B–R
B–R
G–W
G–W
L–O
O
W
L–Y L–O
L–B
R–Y
G–W
L–O
G–W
G–W
B–R
B–R
B–R
G–W
B–R B–R B–R
B–R
LG–R P LG
LGP
LG–R
W–B
W–B
W–B
W–B
W–B
L–O
R–Y
R–Y
L–B
G–W
G–W
GR
B–R
B–RB–R
O
GR
L–Y
W1
* 1 : W/ LEXUS NAVIGATION SYSTEM* 2 : W/O LEXUS NAVIGATION SYSTEM
* 3 : 1UZ–FE* 4 : 2JZ–GE
BODY ECU NO. 1
B 5 A
ACC
RCO RDA RSSI MPX2
G–W
GSW
MPX1
A19
2H11
9
IGBECU
GND PWS BSUB
POWER WINDOW
POWER WINDOW MASTER SWP11
2 10 15 18 6 7 3 1116 14
AU
TO
DR
IVE
R’
SD
OW
N
UP
WIN
DO
WLO
CK
SW
4 12 13
V
V–W
V–R
GR
GR–R
GR–G
L–R
L–B
L–O
L–W
L–B
Y
Y–G
W–B
B–R
G–W
L–O
G–W
G–W
B–R
B–R
B–R
L–O
L–B
R–Y
B–R
G–W
L–O
G–W
G–W
B–R
B–R
B–R
W–B
Y–G Y L–B
R–Y
L–W
L–R
GR
–G
GR
–R
GR
V–R
V–W
E W/L W/L2 DU DA DT1 DT2 DT3 SC1 SC2 SC3PWS DO
L–O
L–B
L–W
G–W
L–O
G–W
G–W
B–R
B–R
B–R
B–R
C9 C3 C2
IB16 IB11 IB113
I 6
A1
IB15
20AD FRDOOR
1F2
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
B73 BB9 B5B6B210 BB11 B1 A13B4
Y–G
GR
–G
V–R
L–W
L–R
GR
–R
V–WV GR
W–B
L–B
L–B
B–R
G–WL–O
L–B
B–R
G–W
G–W
G–W
B–R
B–R
Y
L–B
L–O
D22
DRIVER DOOR ECU
BA , D23
G–W
G–W
WLSWDT1SC1 MUPAUTODT2SC2SC3 DT3 PWEMDN
BDRSIGCPUBMPX1
V
V–W
V–R
GR
GR–R
GR–G
L–R
L–B
Y
Y–G
W–B
A4 A5 A15
P–B
P–G
BR
–B
5 6 3
DOOR KEY LOCK ANDUNLOCK SW FRONT LH
D18
KL KUL LSWE
UN
LOC
K
LOC
K
C, D24
12
B15 B14
CTY CTYE
R–G
W–B
DOOR COURTESYSW FRONT LH
D13
POWER WINDOW
A11 B12A2 B13 B16 C12
IB14
IF
C1 A18
IK15 IK17
C18 A3 A2
IB17 IK11 IK113
IC315
C11 B12C2 B13 B16
G
W–GR W
BR
–B
W–B
L–B
L–O G
W–GR W
BR
–W
B–R
G–WO
W–B
L–B
L–O
W–B
L–O
L–B
Y
B–R
G–W
G–W
B–R
G–W
B–R B–R
G–W
O
G–W
B–R
Y
O
2 41 3 5 1 42 3 5
A
A
A
D22
DRIVER DOOR ECU
BA , D23 F11
FRONT PASSENGER DOOR ECU
BA , F12
JUNCTIONCONNECTOR
J 6
POWER WINDOW MOTOR FRONT RHP13
POWER WINDOW MOTOR FRONT LHP12
JUN
CTI
ON
CO
NN
EC
TOR
J10
BDR MPX2 DN LMTUP PLS SGNDGNDSGNDPLSUP LMTDN
CPUB SIGMPX2
C, F13C, D24
MM
B–R
G–W
O
G–W
B–R
Y
IB12 8 2F
2E10
C13 B4 B6B5 C4 C5 C15 A12
IK14
II
A9
IK16
F11
FRONT PASSENGER DOOR ECU
BA , F12
POWER WINDOW CONTROL SW FRONT RHP 8
DOOR KEY LOCK ANDUNLOCK SW FRONT RH
D19
J13JUNCTION CONNECTOR
JUN
CTI
ON
CO
NN
EC
TO
R
J17
B–R
O
G–W
O
G–W
B–R
Y
Y
W–B
L–B
L–R
L–W
P–B
P–G
BR
–B
W–B
W–B
W–B
O
YYY
Y
A
A
2 4 56 2 1 4
B B B
PWE MDN AUTOMUP KL KUL LSWE GND
C, F13
2H9
IK19
3
AUTODOWN
MANUALDOWN
MANUALUP
AUTOUP
Y
Y
LOC
K
UN
LOC
K
MPX1
12
B15 B14
CTY CTYE
R–G
W–B
DOOR COURTESYSW FRONT RH
D14
EPCT D AU
POWER WINDOW
BA18 BA16 BA111 BA12
BA15
IC314
BA19
BJ
20AD RR DOOR
1E6
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
R12REAR DOOR LH ECU
POWER WINDOW CONTROL SW REAR LHP 9
POWER WINDOW MOTOR REAR LH
JUNCTIONCONNECTOR
J 8
Y
Y
B–R
G–W
O
G–W
O
B–R
L–O
O
G–W
B–R
Y
W–B
Y–R L–B
L–R
L–W Y
Y–G
Y
W–B
W–B
L–O
L–R
B–R
G–WO
L–R
B–R
A
A
PWEPCTO MDN AUTOMUP PCT1 GND
3 2 4 56
MANUALUP
MANUALDOWN
AUTODOWN
AUTOUP
25112224232110
5 15 9 14 4
671 23
MPX1 CPUB SIG BDR MPX2
UP DN LMT PLS SGND
M
PCT E D AU
BM
BB111 BB16 BB13 BB12
BB15
BB19
BL
20AP RR DOOR
2E6
L–R
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
L–O
R13REAR DOOR RH ECU
15
POWER WINDOW CONTROL SW REAR RHP10
IL3
10
L–O
8 BB1
BB1
Y
B–R
G–W
L–O
O
L–O
O
W–B
Y–R L–B
L–R
L–W Y
Y
W–B
W–B
L–OO
G–W
B–R
L–R
16 IL1
AJ22JUNCTIONCONNECTOR
PWEPCTO MDN AUTOMUP PCT1 GNDSEL1
W–B
W–B
3 2 4 56
MANUALUP
MANUALDOWN
AUTODOWN
AUTOUP
10 21 23 24 22 11 20 25
9 15 4 14 5
SIG CPUB MPX2 BDR MPX1
67231
10
BA13
P19POWER SEAT ECU
( *5)
( *5)
( *5)
( *5)
L–O
L–OO
L–Y
(* 6)
L–O
3 BC110 BC1
2 IC2
11
L–O
L–O
MPX2 MPX1
* 5 : W/ DRIVING POSITION MEMORY* 6 : W/O DRIVING POSITION MEMORY
POWER WINDOW MOTOR REAR RH
DN UP LMT PLS SGND
M
PCT E D AU
POWER WINDOW
1. MANUAL DOWN OR UP OPERATIONThe signal is input to TERMINAL MDN of the driver door ECU while the power window master SW is kept pressed one step.This activates the driver door ECU to flow the current from TERMINAL DN into the power window motor front LH toTERMINAL UP of the driver door ECU to GROUND, to rotate the motor and open the window.The signal is input to TERMINAL MUP of the driver door ECU while the power window master SW is kept pulled one step.This activates the driver door ECU to flow the current from TERMINAL UP into the power window motor front LH toTERMINAL DN of the driver door ECU to GROUND, to reversely rotate the motor and close the window. For other windows,as the power window master SW or each power window SW is operated, the window of the relevant door is opened orclosed.
2. AUTO DOWN OR UP OPERATIONThe signals are input to TERMINALS MDN and AUTO of the driver door ECU when the power window master SW is pressedtwo steps. According to these signals, it is determined that the driver door ECU is in the auto mode. The current flows fromTERMINAL DN into the power window motor front LH to TERMINAL UP of the driver door ECU to GROUND, to rotate themotor and automatically open the window. Accordingly, when each window switch of the power window master SW ispressed, the window of the relevant door is automatically opened through communication control of the body ECU and doorECU etc.The signals are input to TERMINALS MUP and AUTO of the driver door ECU when the power window master SW is pulledtwo steps. According to these signals, it is determined that the driver door ECU is in the auto mode. The current flows fromTERMINAL UP into the power window motor front LH to TERMINAL DN of the driver door ECU to GROUND, to rotate themotor and automatically close the window. Accordingly, when each window switch of the power window master SW ispressed, the window of the relevant door is automatically closed through communication control of the body ECU and doorECU etc.For other windows, as each power window control SW is operated, the window of the relevant door is automatically openedor closed.
3. POWER WINDOW OPERATION LINKED WITH DOOR KEY LOCK AND UNLOCK SWWhen the ignition key is inserted into the door key cylinder on the driver or passenger side and kept turned to the lock orunlock position for approximately 1.5 sec. or longer, all the door windows can be opened or closed.Power window close operationWhen the ignition key is inserted into the door key cylinder and kept turned to the lock position for 1.5 sec. or longer, thesignal from the door key lock and unlock SW is input to TERMINAL KL of the driver door ECU or front passenger door ECU.Through communication control of the body ECU and door ECU etc. , the current flows from TERMINAL UP of each doorECU into the power window motor to TERMINAL DN of the each door ECU to GROUND, to close all the door windows.Power window open operationWhen the ignition key is inserted into the door key cylinder and kept turned to the unlock position for 1.5 sec. or longer, thesignal from the door key lock and unlock SW is input to TERMINAL KUL of the driver door ECU or front passenger doorECU. Through communication control of the body ECU and door ECU etc. , the current flows from TERMINAL DN of eachdoor ECU into the power window motor to TERMINAL UP of the each door ECU to GROUND, to close all the door windows.If any of the following conditions is detected, the power window operation is stopped.Approximately 10 sec. or longer has elapsed after starting open/close operation. Catching prevention function is activated.
4. POWER WINDOW OPERATION LINKED WITH TRANSMITTERWhen the unlock SW on the transmitter of the ignition key is kept pressed for 1.5 sec. or longer, all the door windows can beopened.Power window open operationWhen the unlock SW of the ignition key is kept pressed for 1.5 sec. or longer, the frequency received from the wireless doorlock control ECU is input to the body ECU No.1. Through communication control of the body ECU and door ECU etc. , thecurrent flows from TERMINAL DN of each door ECU into the power window motor to TERMINAL UP of the each door ECUto GROUND, to open all the door windows.If any of the following conditions is detected, the power window operation is stopped.Approximately 10 sec. or longer have elapsed after starting open operation.The lock or unlock switch on the transmitter is released.Catching prevention function is activated.
5. CATCHING PREVENTION FUNCTIONIf any foreign matter is caught in the window while it is rising, the pulse sensor installed in the power window motor detectschanges in the number of motor rotations, forcibly lowers the door window 50 mm or if the door window opening amount is200 mm or less, the window is lowered so that the opening amount is 200 mm.
6. KEY OFF POWER WINDOW OPERATIONIt is possible to operate the power window for 45 sec. after the ignition key is turned from ON to OFF and the driver or frontpassenger door is opened. However, when the door is closed while the window is being operated, the power windowoperation is stopped even though 45 sec. has not elapsed.
SYSTEM OUTLINE
B6 BODY ECU NO.21–GROUND : Approx. 12 volts with ignition SW at ON or ST position8–GROUND : Always approx. 12 volts
11–GROUND : Always continuity
B5 (A) BODY ECU NO.11–GROUND : Approx. 12 volts with ignition SW at ON or ST position8–GROUND : Always approx. 12 volts
11–GROUND : Always continuity4–GROUND : Always approx. 12 volts
(A)15–GROUND : Approx. 12 volts with ignition SW at ACC or ON position
D22 (A), D24 (C) DRIVER DOOR ECU(A) 1–GROUND : Always approx. 12 volts(C) 3–GROUND : Always approx. 12 volts(C) 2–GROUND : Approx. 12 volts with ignition SW at ON or ST position(C)12–GROUND : Always continuity
F11 (A), F13 (C) FRONT PASSENGER DOOR ECU(A) 2–GROUND : Approx. 12 volts with ignition SW at ON or ST position(A) 3–GROUND : Always approx. 12 volts(A)12–GROUND : Always continuity(C) 1–GROUND : Always approx. 12 volts
R12 REAR DOOR LH ECU9–GROUND : Approx. 12 volts with ignition SW at ON or ST position
14–GROUND : Always approx. 12 volts15–GROUND : Always approx. 12 volts25–GROUND : Always continuity
R13 REAR DOOR RH ECU9–GROUND : Approx. 12 volts with ignition SW at ON or ST position
15–GROUND : Always approx. 12 volts14–GROUND : Always approx. 12 volts20–GROUND : Always continuity25–GROUND : Always continuity
P11 POWER WINDOW MASTER SW15–6 : Closed with power window master SW at MANUAL UP position
15–18 : Closed with power window master SW at MANUAL DOWN position15–6, 7 : Closed with power window master SW at AUTO UP position
15–18, 7 : Closed with power window master SW at AUTO DOWN position
P8, P9, P10 POWER WINDOW CONTROL SW FRONT RH, REAR LH, REAR RH3–6 : Closed with power window SW at MANUAL UP operation3–4 : Closed with power window SW at MANUAL DOWN operation
3–6, 5 : Closed with power window SW at AUTO UP operation3–4, 5 : Closed with power window SW at AUTO DOWN operation
WINDOW LOCK SWOpen with window lock SW at LOCK position
SERVICE HINTS
POWER WINDOW
: PARTS LOCATION
Code See Page Code See Page Code See Page
A13 40 E7 F 36 (1UZ–FE) M3 41
B5 A 40 F11 A 42 P8 43
B6 A 40 F12 B 42 P9 43
C13 40 F13 C 42 P10 43
D13 42 J6 41 P11 43
D14 42 J7 41 P12 43
D18 42 J8 41 P13 43
D19 42 J10 41 P19 44
D22 A 42 J13 41 R12 43
D23 B 42 J15 41 R13 43
D24 C 42 J17 41 T5 41
E5 D 38 (2JZ–GE) J22 42 W5 43
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1E 26 Floor No.2 Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
2B 28 Engine Room Main Wire and Passenger Side J/B (Right Kick Panel)
2E 28 Floor No.1 Wire and Passenger Side J/B (Right Kick Panel)
2F 28
2G29
Cowl Wire and Passenger Side J/B (Right Kick Panel)
2H29
g ( g )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IB1 50 Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC250 Floor No 2 Wire and Cowl Wire (Left Kick Panel)
IC350 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IJ1 52 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IK1 52 Front Door RH Wire and Cowl Wire (Right Kick Panel)
IL152 Floor No 1 Wire and Cowl Wire (Right Kick Panel)
IL352 Floor No.1 Wire and Cowl Wire (Right Kick Panel)
BA1 54 Rear Door LH Wire and Floor No.2 Wire (Under the Center Pillar LH)
BB1 54 Rear Door RH Wire and Floor No.1 Wire (Under the Center Pillar RH)
BC1 56 Floor No.2 Wire and Front Seat LH Wire (Under the Driver’s Seat)
: GROUND POINTS
Code See Page Ground Points Location
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
BJ 54 Rear Floor Partition Panel LH
BL 54 Rear Floor Partition Panel RH
BM 54 Quarter Panel RH
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I6 52 Cowl Wire
3 5 6
1 2 4 1 2 4 5
11 13 X
15
3 4 5 6 X X
X 15 19
1 X
X 19 X X X X
5 X X
X
X 16
2 3 X X 9
X 12 X 18X X X X
X X X X
X X X 28
X
27
X X X X X X 11 X X
24
1 2 3 4 5 6 7
9 10 11 12 13 14 15 16
1 2 4 5
11 13 X
15
A A
A A A A 2 3 X X X 9
X 12 X X X 18X X X 4 5 6 X
X X X 12 13 14 15 16
A13 B5 (A) B6 (A)
C13BLACK
BLACK GRAY GRAY
GRAY (2JZ–GE) (1UZ–FE)
GRAY GRAY
GRAYJ6
GRAY GRAY
(Hint : See Page 7)
D13 D14 D18
D19 D22 (A) D23 (B)
D24 (C) E5 (D) E7 (F)
F11 (A) F12 (B) F13 (C)
1 2 1 2
2 X
X1 1
POWER WINDOW
B B B B B B B
A A A AA A A A AA A A A A A A A
BB
D
B
DD
D
B
B B B B
AAAA A A
A A
A A A A
X 2
3 4 5 6
X 2
3 4 5 6
2 X
X 8 X X X X X
X 2
3 4 5 6X 2 3 4 6 7 X
X 10 11 12 13 14 15 16 18 X X
1 2
3 4
5 X
X X
1011 X X
1 2
3 4
5 X
X 4 5 X 9 1011
14 15 X 21222324 25
1 X 3 4 5 X 7
6 7 X
X 4 5 X 9 1011
14 15 2021222324 25
GRAY ORANGEJ13
J15 J17 J22BLUE
P8 P9 P10 P11
P12 P13 P19
BLACK
R12
W5R13GRAY
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
J7 J8 J10
M3
T5
MEMO
PPS
15AECU–IG
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1H5
IF II
21
EA18 EA19
61 2
A
4
A
A
PPS SOLENOIDP 3
JUNCTIONCONNECTOR
J 6
PPS ECUP 6
B–R
B–R
W–B
W–B
B–Y
G–R
G–R
B–Y
SOL–SOL+ GND
IG
JUNCTIONCONNECTOR
J 7
B
B
II
2F13
2G6
W–B
W–B
A
SP
EE
DO
ME
TE
R
A1
B8A22B6
10AGAUGE
1D4
1D5
1F13
1G
6
IE113
IE111
5
A
A
A
A
A
A
R–L
V–W
W–B
O
W–B
W–B
W–B
W–B
G
W–B
V–W
W–B
C12
COMBINATION METER
BA , C13
CPU
SPD
JUNCTIONCONNECTOR
J17
J13JUNCTIONCONNECTOR
JUN
CTI
ON
CO
NN
EC
TOR
J10
PPS ECU (Flow rate control system) controls the solenoid valves mounted in the pump to conduct direct control of the pumpflow rate in response to the vehicle speed possible, ensuring natural and real steering feeling.
1. PPS OPERATIONWhen the ignition SW is turned on, the starting current flows from the ECU–IG fuse to TERMINAL 4 of the PPS ECU. Thevehicle speed sensor monitors the vehicle speed and transmits control signals to TERMINAL 5 of the ECU.When the vehicle speed is low, the PPS ECU sends a higher–current from TERMINAL 1 of the ECU to TERMINAL 1 of thePPS solenoid to TERMINAL 2 to TERMINAL 2 of the ECU to TERMINAL 6 to GROUND, increasing the solenoid valveopening angle to provide comfortable steering operation. When the vehicle speed is high, the PPS ECU decreases thesolenoid valve opening angle by reducing the current to the valve to provide responsive steering feeling.
P3 PPS SOLENOID1–2 : Approx. 7.8 Ω (25°C, 77°F)
P6 PPS ECU4–GROUND : Approx. 12 volts with ignition SW at ON or ST position6–GROUND : Always continuity
: PARTS LOCATION
Code See Page Code See Page Code See Page
C12 A 40 J10 41 P3 39 (2JZ–GE)
C13 B 40 J13 41 P6 41
J6 41 J17 41
J7 41 P3 37 (1UZ–FE)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1D 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
2F 28Cowl Wire and Passenger Side J/B (Right Kick Panel)
2G 29Cowl Wire and Passenger Side J/B (Right Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA146 (1UZ–FE)
Engine Wire and Cowl Wire (Inside of the ECU Box)EA148 (2JZ–GE)
Engine Wire and Cowl Wire (Inside of the ECU Box)
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
: GROUND POINTS
Code See Page Ground Points Location
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
SYSTEM OUTLINE
SERVICE HINTS
PPS
B B B B B B B
A A
A A A A
A A A A AA A A A A A A A
A
A A
1 2
X 4 5 6
1 2
X
2X
X
XX
XX
X
1
AAAA A A
2
GRAYJ6
ORANGEJ13
GRAY
BLUE
J17
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
C12 (A) C13 (B) J7
J10 P3
P6
6
8 X
X
MEMO
RADIATOR FAN AND CONDENSER FAN
IA17
EB23
3 4
1 2
3 3
3 3
EB15
W–R
G–Y
G–Y
W–G
2
3
1
2
W–R
W–R
B–O
A/C SINGLEPRESSURE SW
A 4
WATERTEMP. SW
W 3
FAN NO. 1RELAY
L–W
G–Y
1
1
1 3
2 5
4
111
1 1
1
30ACDS FAN
30ARDI FAN
1 1
1 1
22
EE
B
W–B
W–L
B–O
B–O
G–Y
W–G
W–B
BATTERY
120AALT
50AFANMAIN
1
1
A
2
2
A
JUNCTIONCONNECTOR
J 5
W–B
W–B
B–L
ENGMAINRELAY
R
B–O
W–R
W–L
II25
5AIGN
1G7
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
IA18
M
1
2
3 1
5 2
5 2
4
3 1
3 3 3 3
3 3 3 33
EB21 EB14
EB22EB12
W–L
W–L
WW
G–YW–B
W–G
3
3
EB24
W–G
W–G
M
1
2
E 4
W–B
EB
3
IG
E
E
W–G
L–W
B–O
B–O
B–O
B–O
JUNCTIONCONNECTOR
J14
A/C CONDENSERFAN MOTOR
A 2
RADIATORFAN MOTOR
R 1
A
A
A
FAN NO. 3RELAY
FAN NO. 2RELAY
FRO
M A
/C C
OM
PR
ELA
Y
W–B
W–B
W–B
( *2)
( *1)
W–B
W–B
(*2)
* 1 : W/O DAYTIME RUNNING LIGHT* 2 : W/ DAYTIME RUNNING LIGHT
W–B
W–B
W–G
W–B
E4 : *1I1 : *2
W–B
W–G
G–Y
B–O
B–O
W–L
EB–O
RADIATOR FAN AND CONDENSER FAN
FAN MOTOR OPERATIONWhen the ignition SW is turned on, the current from the IGN fuse flows to the FAN NO.1 relay (Coil side) and the FAN NO.2relay (Coil side) to TERMINAL 3 of the A/C single pressure SW to TERMINAL 2 to TERMINAL 2 of the water temp. SW toTERMINAL 1 to GROUND, and the FAN NO.1 relay is turned off and the FAN NO.2 relay is turned on.
∗ Low speed operationWhen the ignition SW is turned on and the A/C is activated, current flows from the A/C COMP relay (Point side) to theFAN NO.3 relay (Coil side) to GROUND, and the FAN NO.3 relay is turned on. As a result, current from the CDS FANfuse flows to TERMINAL 2 of the A/C condenser fan motor to TERMINAL 1 to the FAN NO.2 relay (Point side) to theFAN NO.3 relay (Point side) to TERMINAL 2 of the radiator fan motor to TERMINAL 1 to GROUND, rotating both of thefan motors at low speed.If the engine coolant temperature is approx. 90°C (194°F) or less, and the refrigerant pressure is approx. 15.5 kgf/cm2
(1520 kpa, 220.4 psi) or less, both the water temp. SW and the A/C signal pressure SW are closed, so that the FANNO.1 relay is turned off and the FAN NO.2 relay is turned on. As a result, both of the fan motor operate at low speed.
∗ High speed operationWhen, during A/C operation, the refrigerant pressure becomes higher than ordinary level (Approx. 15.5 kgf/cm2 (1520psi, 220.4 kpa) ), the A/C single pressure SW is turned off. As a result, the FAN NO.1 relay is turned on and FAN NO.2relay is turned off, and the current flows from the RDI FAN fuse to FAN NO.1 relay (Point side) to TERMINAL 2 of theradiator fan motor to TERMINAL 1 to GROUND, and current from the CDS FAN fuse flows to TERMINAL 2 of the A/Ccondenser fan motor to TERMINAL 1 to the FAN NO.2 relay (Point side) to GROUND, rotating both of the fan motors inparallel, thus causing the fan motors to operate at high speed.Note that, because the current flows in the same manner even if the coolant temperature is approx. 90°C (194°F) orhigher, the fan motors still operate at high speed.
A4 A/C SINGLE PRESSURE SW2–3 : Open above approx. 15.5 kgf/cm2 (220.4 psi, 1520 kpa)
Close below approx. 12.5 kgf/cm2 (177.7 psi, 1225.8 kpa)
W3 WATER TEMP. SW1–2 : Open above approx. 90°C (194°F)
Closed below approx. 83°C (181.4°F)
: PARTS LOCATION
Code See Page Code See Page Code See Page
A236 (1UZ–FE)
J537 (1UZ–FE) R1 39 (2JZ–GE)
A238 (2JZ–GE)
J539 (2JZ–GE)
W337 (1UZ–FE)
A436 (1UZ–FE) J14 41
W339 (2JZ–GE)
A438 (2JZ–GE) R1 37 (1UZ–FE)
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
3 24 Engine Room No.3 R/B (Engine Compartment Left)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1G 27 Cowl Wire and Driver Side J/B (Left Kick Panel)
SYSTEM OUTLINE
SERVICE HINTS
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EB146 (1UZ–FE)
EB148 (2JZ–GE)
Cowl Wire and Relay Block Wire (Inside of the Engine Room No 3 R/B)
EB246 (1UZ–FE)
Cowl Wire and Relay Block Wire (Inside of the Engine Room No.3 R/B)
EB248 (2JZ–GE)
IA1 50 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
II2 52 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
: GROUND POINTS
Code See Page Ground Points Location
EB46 (1UZ–FE)
Left FenderEB48 (2JZ–GE)
Left Fender
EE46 (1UZ–FE)
Under the ABS & TRAC & VSC ActuatorEE48 (2JZ–GE)
Under the ABS & TRAC & VSC Actuator
IG 50 Left Side of the Cowl Panel
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E446 (1UZ–FE)
Cowl WireI1 52 Cowl Wire
E448 (2JZ–GE)
Cowl Wire
21
2 3
EE
EE
EE
E
21
1 2
AAAAAA A A A A A A
GRAY BLACKJ14
GRAYW3
BLUE
(Hint : See Page 7)
(Hint : See Page 7)
A2 A4 J5
R1
RADIO AND PLAYER (EXCEPT NAKAMICHI)
20ARADIONO. 1
1
10ADOME
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
2H12
15ARADIONO. 2
1C1
3G3 3D3 3D13G13A33A11F11 1C3II41
IJ32
1 2
IK117 IK116
IJ37 IJ312
C1 C5
LG L
21
IB117 IB116
IJ36 IJ311
C2 C6
P V
IM18 IM19 IM17 IM16
C7
IH
7 2 1 6
FRONT DOORSPEAKER RH
F10FRONT DOORSPEAKER LH
F 9
NAVIGATION ECUN 2
LGLG
LL
PP
VV
V P L–B
L–R
W–B
W–B
V
P
L–B
L–R
(*1)
(*1)
(*1)
(*1)
B8
7
B3
2
B5
6
B2
1
B1
4
B4
9
B6
3
B7C4
D
CD AUTOMATICCHANGER
C 6
JUNCTIONCONNECTOR
J18D
W–B
L–Y
L–Y
L–Y
L–Y
GR
L–Y
GR
L–Y
L–Y
L–Y
G R W B P V L–O
L–Y
GR
8
10 5
( SH
IELD
ED
)
1
2
STEREO COMPONENT AMPLIFIER
BS 7 S 8A CS 9 DS10
P ( *2)
( *2)
( *3)
( *3)
( *3)
( *3)
( *3)
( *3)
( *3)
( *3)
( *3)
AUO– AUO+ AUI+ AUI–
ACC B
GND CDL– CDL+ CDR– CDR+ TXM+ TXM– MUTE
, , ,
+B SGD4 CDL– CDL+ CDR– CDR+ TXM+ TXM– MUTE
E FR+ FR– FL+ FL–
TWEETER TWEETER
21
IL24 IL210
IJ33 IJ38
D4 D5
LG–B
LG–R
21
BB17 BB112
IJ35 IJ310
D1 D3
R W
WOOFER(SPEAKER)
W 6REAR DOORSPEAKER RH
R15
LG–B
LG–B
LG–R
R
LG–R
R WW
IL28 IL27
R W
IJ31
C8
L–O
L–O
IL16
L–O
B4
IJ34
D2
BB
IL31
B
A5
IJ39
D6
YY
IL39
Y
A12
BA112
YY
IL25
Y
B12
BA17
BB
IL21
B
B5
IC25 IC21
2 1
Y B
TELEPHONE TRANSCEIVER AND SPEAKER RELAY
BT 8 T 9A
REAR DOORSPEAKER LH
R14
IH
W–B
A12
B3
A4
B8
A9
B9
A10
B10
A6
B5
A7
B6
A1
B1
A2
B2
P–L
Y–G P L G R W B
A3
( SH
IELD
ED
)
STEREO COMPONENTAMPLIFIER
BS 7 S 8A
CS 9 DS10
A4 A1 RADIO AND PLAYER
BR 2 R 3A
C2 C1
CR 4
4 12
BR Y
MULTI–DISPLAYM 4
* 1 : W/ LEXUS NAVIGATION SYSTEM* 2 : W/O LEXUS NAVIGATION SYSTEM
GR
L–Y
A2
W–B
( *1)
( *1)
* 4 : W/ AUTO ANTENNA
,
ACC MUTE BUS– BUS+ R– L– R+ L+ SGND
WF+ WF– RR+ RR– TLMT RL+ RL–
B ACC TX+ TX–
GNDL+R+L–R–BUS+BUS–MUTEACC
, ,
,
,
,
TX1+ TX1–
C3
W–R
( *4)
C4
W–L
( *4)
C5
B–W ( *4)
IJ24 IJ214 IJ213
IL112 IL113 IL14
W–R
( *4)
W–L
( *4)
B–W ( *4)
B–W ( *4)
W–L
( *4)
W–R
( *4)
AUTO ANTENNA CONTROLRELAY AND MOTOR
A35
1 2 5
* 3 : W/ CD AUTOMATIC CHANGER
ANTANTAANTB
RADIO AND PLAYER (EXCEPT NAKAMICHI)
R2 (A) RADIO AND PLAYER(A) 1–GROUND : Approx. 12 volts with ignition SW at ACC or ON position(A) 4–GROUND : Always approx. 12 volts(A) 2–GROUND : Always continuity
S9 (C) STEREO COMPONENT AMPLIFIER(C) 4–GROUND : Always approx. 12 volts(C) 7–GROUND : Always continuity
C6 CD AUTOMATIC CHANGER5–GROUND : Always approx. 12 volts
10–GROUND : Approx. 12 volts with ignition SW at ACC or ON position8–GROUND : Always continuity
: PARTS LOCATION
Code See Page Code See Page Code See Page
A35 42 R2 A 41 S9 C 41
C6 40 R3 B 41 S10 D 41
F9 42 R4 C 41 T8 A 43
F10 42 R14 43 T9 B 43
J18 41 R15 43 W6 43
M4 41 S7 A 41
N2 43 S8 B 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1C 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26 Cowl Wire and Driver Side J/B (Left Kick Panel)
2H 29 Cowl Wire and Passenger Side J/B (Right Kick Panel)
3A30
3D30
Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Reinforcement Center)
3G 31
( )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IB1 50 Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC2 50 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
II4 52 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
IJ252 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IJ352 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IK1 52 Front Door RH Wire and Cowl Wire (Right Kick Panel)
IL1
IL2 52 Floor No.1 Wire and Cowl Wire (Right Kick Panel)
IL3
( g )
IM1 52 Instrument Panel Wire and Floor No.1 Wire (Front RH Side of the Shift Lever)
BA1 54 Rear Door LH Wire and Floor No.2 Wire (Under the Center Pillar LH)
BB1 54 Rear Door RH Wire and Floor No.1 Wire (Under the Center Pillar RH)
: GROUND POINTS
Code See Page Ground Points Location
IH 50 Instrument Panel Brace RH
SERVICE HINTS
109876
54321 1
2
1
2
X 4
X X X 12
1 2 X X
6 7 X X X
1 2
X 4
1 2 3 X
5 6 X 8 9 10
1 2 3 4 5 X X 1
2
1
2
X43216 7 X 9 10 X 12
1 2 34 5 6 7 8
1 2 X 4
5 6 7 8 X X
1 2
3 4 5 6 1 2
D D D
512
54
X 12
1 2
X 5
C6 F9 F10
M4 N2 R2 (A) R3 (B)
R4 (C) R14 R15BLACK ORANGE
S9 (C) S10 (D) T8 (A) T9 (B) W6
(Hint : See Page 7)
J18
S7 (A) S8 (B)
BLUEA35
RADIO AND PLAYER (NAKAMICHI)
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
20ARADIONO. 1
1
15ARADIONO. 2
1C1
10ADOME
2H2
2
II41
D
D
IL22
A
AA
D2 D5
3G3
3D3
3G1 3A1
3D1
3A3
1F11
1C3
IM24 IM214 IM25 IM29
D6 D7 A6 A1
B10B4B9B3D1D4
RADIO AND PLAYER
BR 2 R 3A CR 4 DR 5
STEREO COMPONENT AMPLIFIER
BS14 S15A CS16 DS17
A
BM
J22JUNCTIONCONNECTOR
D1 D4
A
C2
IM17 IM16 IM19 IM18
IJ36 IJ311 IJ37 IJ312
IB117 IB116 IK117 IK116
1 2 1 2
C7 C1 C6
1 2
B1 B2
BB17 BB112
1 2
C4 C12
FRONT DOORSPEAKER LH
F 9FRONT DOORSPEAKER RH
F10
WOOFER(SPEAKER)
W 6REAR DOORSPEAKER RH
R15
P V LG L
P V LG L
P V LG LLLGVP
W–B
W–B
LG–B
LG–R
R W
R W
L–Y
L–Y
L–Y
L–Y
L–Y
L–Y
GR
L–Y
L–Y
L–Y
GR
L–Y
GR
P–L
B–L
B–O BR
BR
B–OB–L
P–L
GR
L–Y
L–Y
GR
B ACC ACC MUTE AMP GND
GND4 GND5 FL+ FL– FR+ FR– WF+ WF– RR+ RR–
+B1 +B2 ACC1 MUTE AMP+ GND1
JUNCTIONCONNECTOR
J18
JUN
CT
ION
CO
NN
EC
TOR
J21
1
, , ,
TWEETER TWEETER
, , ,
D/A CONVERTERD 6
RADIO AND PLAYER
BR 2 R 3A CR 4 DR 5
C1 C6 C2 C7 C10 C9 C4
IM213
A4
A10
IM22
A2
A9
IM23
A6
A4
IM211
A1
A13
IM212
A3
IM217
B7
A3
IM26
B2
A8
IM27
B6
A5
IM28
B1
A14
IM215
B5 A5
IJ31
D3
IH
B4A12A5B5B12
IL16
C13C5
REAR DOORSPEAKER LH
YB
BA17 BA112
1 2
R14
IC21 IC25
IL25 IL21
STEREO COMPONENT AMPLIFIER
BS14 S15A CS16 DS17
5 4 2 10 9 12 11 1 6 7
TELEPHONE TRANSCEIVER ANDSPEAKER RELAY
BT 8 T 9A
14
B W R G P V L–B
W–B
B W R G
B W R G P O LG V
P O LG V
L–O
L–O
L–O
L–O
W–B
W–B
W–B
YBY B
Y B
YB
CDR+ CDR– CDL+ CDL– TXM–TXM+ MUTE
FL+ FL– RL+ RL– FR+ FR– RR+ RR–
L–Y
GR
L–Y
GR
YB
( SH
IELD
ED
)( S
HIE
LDE
D)
( SH
IELD
ED
)( S
HIE
LDE
D)
( SH
IELD
ED
)
+B ACC SGND DR+ DR– DL+ TXM+DL– TXM– MUTE E
TLMT
RL–RL+
SE2 FL+ FL– RL+ RL– SGND FR+ FR– RR+ RR– E
,
, , ,
A7
IM216
B8
GR
GR
BEEP
BEEP
, , ,
CD AUTOMATIC CHANGER
RADIO AND PLAYER (NAKAMICHI)
R5 (D) RADIO AND PLAYER(D) 1–GROUND : Approx. 12 volts with ignition SW at ACC or ON position(D) 4–GROUND : Always approx. 12 volts(D) 3–GROUND : Always continuity
S17 (D) STEREO COMPONENT AMPLIFIER(D) 2, (D) 5–GROUND : Always approx. 12 volts(D) 1, (D) 4–GROUND : Always continuity
D6 D/A CONVERTER4–GROUND : Approx. 12 volts with ignition SW at ACC or ON position5–GROUND : Always approx. 12 volts
: PARTS LOCATION
Code See Page Code See Page Code See Page
D 6 40 R3 B 41 S16 C 43
F9 42 R4 C 41 S17 D 43
F10 42 R5 D 41 T8 A 43
J18 41 R14 43 T9 B 43
J21 42 R15 43 W6 43
J22 42 S14 A 43
R2 A 41 S15 B 43
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1C 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26 Cowl Wire and Driver Side J/B (Left Kick Panel)
2H 29 Cowl Wire and Passenger Side J/B (Right Kick Panel)
3A30
3D30
Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Reinforcement Center)
3G 31
( )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IB1 50 Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC2 50 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
II4 52 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
IJ3 52 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IK1 52 Front Door RH Wire and Cowl Wire (Right Kick Panel)
IL152 Floor No 1 Wire and Cowl Wire (Right Kick Panel)
IL252 Floor No.1 Wire and Cowl Wire (Right Kick Panel)
IM152 Instrument Panel Wire and Floor No 1 Wire (Front RH Side of the Shift Lever)
IM252 Instrument Panel Wire and Floor No.1 Wire (Front RH Side of the Shift Lever)
BA1 54 Rear Door LH Wire and Floor No.2 Wire (Under the Center Pillar LH)
BB1 54 Rear Door RH Wire and Floor No.1 Wire (Under the Center Pillar RH)
: GROUND POINTS
Code See Page Ground Points Location
IH 50 Instrument Panel Brace RH
BM 54 Quarter Panel RH
SERVICE HINTS
1 2 X 4 5
6 7 X 9 10 11 12 X 141
2
1
2
A A A A
1 2
3 4 5 6
1 2 3 4
5 6 7 8 9 10
X4X216 7 X 9 10 X X
1 X 34 X X
1
2
1
2
1 X 3 4 5
6 7 8 9 10 X X 13 14
1 2 X X X
X X X X X X X X X
1 2 X 4 56 7 X X X X 1213
1 2 X
4 5 6 7 X X 512
54
X 121 2
D D D
A A
A A A A
D6 F9 F10BLUE BLACK
J22 R2 (A) R3 (B) R4 (C)ORANGE
R14 R15 S14 (A)
GREEN ORANGET8 (A) T9 (B) W6
GRAY
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
J18 J21
R5 (D)
S15 (B)
S16 (C) S17 (D)
REAR WINDOW DEFOGGER AND MIRROR HEATER
10AHEATER
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1F8
120AALT
2
1
1
3 2
5 1
2A1
C
C
2H3
10AMIR HTR
2F6
A
IF
J 6JUNCTIONCONNECTOR
IB18
B7 (*2)A12 (*1)
A13 (*1)
B8 (*2)
IB13
A
A
4 2
3 1
4 4
4 4
2H52H2
JUN
CT
ION
CO
NN
EC
TO
R
J13
2H10
12 IK1
B7A12
A13B8
IK13
A
A
R–W
R–W R R–L
R–W
R–W
W–B
W–B
W–B
W–B
W–B
W–B
R–L
R–L
B
R
MIRRELAY
MIRROR HEATER[REMOTE CONTROL MIRROR]
JUNCTIONCONNECTOR
J17
JUNCTIONCONNECTOR
J10
DEFRELAY
R16
LH
BA , R17
RH
BA ,
A19
F24D27
D28F11
IJ13
16
6
5
2
WL
LMPX1
MPX2
MPX–
L–R
A/C CONTROLASSEMBLY
A13
MULTI–DISPLAYM 3
B 5
BO
DY
EC
UN
O. 1
A
E 5
EN
GIN
E C
ON
TRO
LM
OD
ULE
FD
, E
7
(* 4)(*5)
(*4)(*5)
DFG
MPX1
MPX+
MPX1(*3)
2F13 2G6
II
A
11
GND
W–B
W–B
L
L–B
W–B
2J3 2J6
30ADEFOG
2
1
2J5
IC27
2G6
NO
ISE
FILT
ER
NO
ISE
FILT
ER
II
W–B
L–W
W–B
L–W
L L–B
W–B
* 1 : W/ DRIVING POSITION MEMORY* 2 : W/O DRIVING POSITION MEMORY* 3 : W/ LEXUS NAVIGATION SYSTEM
* 4 : 1UZ–FE* 5 : 2JZ–GE
W–B
L–B
L
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
NOISE FILTER(REAR WINDOW DEFOGGER)
N 5
REAR WINDOWDEFOGGER
1
1 1
2 2
REAR WINDOW DEFOGGER AND MIRROR HEATER
DEF RELAY1–2 : Closed with ignition SW at ON position and defogger SW on
: PARTS LOCATION
Code See Page Code See Page Code See Page
A13 40 J10 41R16
A 43
B5 A 40 J13 41R16
B 43
E5 D 38 (2JZ–GE) J17 41R17
A 43
E7 F 36 (1UZ–FE) M3 41R17
B 43
J6 41 N5 43
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
4 25 Passenger Side R/B (Right Kick Panel)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1F 26 Cowl Wire and Driver Side J/B (Left Kick Panel)
2A 28 Engine Room Main Wire and Passenger Side J/B (Right Kick Panel)
2F 28
2GCowl Wire and Passenger Side J/B (Right Kick Panel)
2H 29Cowl Wire and Passenger Side J/B (Right Kick Panel)
2J
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IB1 50 Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC2 50 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
IJ1 52 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IK1 52 Front Door RH Wire and Cowl Wire (Right Kick Panel)
: GROUND POINTS
Code See Page Ground Points Location
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
SERVICE HINTS
1
X1213
XXX8 7
5 X X
X
X 16
X X
X 19
X X X X
X X X X
X X X 28
X
27
X X X X X X 11 X X
24
C
CC
CC
2 X
X X X X X X
A A A A AA A A A A A A A
AAAA A A
A A
A A A A
X1213
XXX8 7
A13 B5 (A)(2JZ–GE)
(1UZ–FE)J6
ORANGE
J13 J17BLUE
N5
(w/ Driving Position Memory) (w/o Driving Position Memory) (w/ Driving Position Memory)
(w/o Driving Position Memory)
(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
E5 (D)
E7 (F) J10
M3
R16 (A) R16 (B) R17 (A)
R17 (B)
REMOTE CONTROL MIRROR
15AECU–IG
1H5 1H6
II IF
1F13 1G6
A111
A
A
A
1 8
A
B–R
G–W
L–O
GND GSWO
O
W–B
W–BW–B
MPX2MPX1BECUIG
B–R
G–W L–O
W–B
W–B
W–B
O
B 6
BODY ECU NO. 2
A
J17
FROM POWER SOURCE SYSTEM (SEE PAGE 60)W
–BJU
NC
TIO
N C
ON
NE
CT
OR
A7A6 A8
MIRS MIRBMIRE
9 78
W
BR
–BV
REMOTE CONTROL MIRROR SWR 6
W–B
A19
A
W
W
1H11
9
E M+MSW
OPERATION SWSELECT SW
RIGHT
LEFT
RIGHT
LEFT
UP
RIGHT
DOWN
LEFT
JUN
CT
ION
CO
NN
EC
TO
R
J 6
W–B
IE18 IE117
IJ110
15ARADIONO. 2
1H10
10AMPX–B
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
2B8 2H112G4
I 6
D28F11
F24D27
(*3)(*4)
(*3)(*4)
2F11
A15
IJ13
A3
2G6 2F13
II
6 7
2
11
A
2
D
B
D
BB
8
16 5
98 1
AA
BBB
B–R
G–W
L–O
GSW GND
O
W–B
W–B
B–R
B–R
G–W
L–O
B–R
W–B
W–B
MPX1
BECU IG ACC
W WL
WW
W L–R
LW
G–W
G–W
G–W
B–R
GR
GR
B–R
W–B
W–B
W–B
W–B
O
( *2)
( *1)
TILT ANDTELESCOPIC ECU
T 5
( *1)
A/C CONTROL ASSEMBLY
MU
LTI–
DIS
PLA
Y
A13
M 3
B 5
BODY ECU NO. 1
A
JUNCTIONCONNECTOR
JUNCTIONCONNECTOR
JUNCTIONCONNECTOR
J 7 J15J13
JUNCTIONCONNECTOR
J10
* 1 : W/ LEXUS NAVIGATION SYSTEM* 2 : W/O LEXUS NAVIGATION SYSTEM
* 3 : 1UZ–FE* 4 : 2JZ–GE
EN
GIN
E C
ON
TRO
L M
OD
ULE
BSUB
2F2
4
20AP FRDOOR
FROM POWER SOURCESYSTEM (SEE PAGE 60)
L–B
L–B
MPX2
L–O
L–O
FE
5D
, E
7
1
B–R
G–WL–O
A19
L
MPX+MPX–
MPX1
MPX2
MPX2
MPX1
MPX1MPX2
W
W
COMBINATIONMETER
C13
211
3
4
RET
A7
P–G
MIR
RO
R R
ET
RA
CTI
ON
SW
M 7
I 6
W–B
REMOTE CONTROL MIRROR
20AD FR DOOR
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1F2
IB113 IB11 IB16 IB15
C2 C3 C9 A1
C12 A16 C15 C14 C4
IB14
1 3 5 7
B–R
B–R
G–W
L–O
L–O
L–B
W–B
W–B W–B
L–B
L–O
G–W
B–R
L–B
L–O
G–WB–R
GR
P–BP
BR
–W
W–B
W–B
L–O
L–B
L–B
GND MSWE M1 M2 MM
SIG CPUB MPX1 BDR
D22
DRIVER DOOR ECU
CA , D24
DRIVING POSITION MEMORY SWD25
I 6
G–W
B–R
C16 C7 C8 C1 B8 C10 C13
DE2HSSRDVCVSSRDMVRDM+RDMHR
BR
B–O
Y–R R
LG–B
LG–R
LG
B4A1
B5A2
B6A6 A11A10A8A9 5
(*6)
R16
REMOTE CONTROL MIRROR LH
BA ,
D23, B
( *5)
( *5)
( *5)
( *5)
E M1 M2 MRY
ME
MO
RY
1
ME
MO
RY
2
SE
T
M M
MH COM MV VSR VC HSR E1
G–B
A9 A18
MR–MR+
L–R
A14A (*5)
( *7)
( *7)
B–O
C10 C13
DE2HSSR
BR
A11A10
MF
M
MR
4
7 8A
1
16
Y–R
B
A
B–O
A
O
A1
A
B8
LG–B
A10 A13
PE2HSSR
BR
VSSR
,
PVCPMVRPM+RPMHR
LG–R
LG
A
B5
B
REMOTE CONTROL MIRROR RH
R17
A2B6A6 A11A10A8A9
(*6)
IK15 IK17 IK11 IK113
IK1
A12
C1 A18 A3 A2
L–B
L–O
G–W B–R
W–B
L–B
L–O
G–W B–R
L–B
L–O
G–W
B–R
GND
BDR MPX2 CPUB SIG
W–B
W–B
* 5 : W/ DRIVING POSITION MEMORY* 6 : W/O DRIVING POSITION MEMORY
F11
FRONT PASSENGER DOOR ECU
CA , F13F12, B
M M
MH COM MV VSR VC HSR E1
R–G
C9 C18
MR–MR+
L
A14A5 (*5)
( *7)
( *7)
Y–R
A10 A13
PE2HSSR
BR
A11A10
MF
* 7 : W/ RETRACTION
M
MR
REMOTE CONTROL MIRROR
REMOTE CONTROL MIRROR OPERATIONWhen the ignition SW is turned to the ACC or ON position, the outer mirrors can be operated. When the remote controlmirror SW is operated, the signal is input to body ECU No.2 and the outer mirror is adjusted to the desired position throughcommunication control of the body ECU and door ECU etc.In the remote control mirror system, the position sensor detects the number of rotations of each motor (Movement amount ofeach mirror) and inputs it to the ECU. This makes it possible to store and recall the outer mirror position using the positionmemory SW. The outer mirror position is stored and recalled through communication control of the body ECU and door ECUetc.
R6 REMOTE CONTROL MIRROR SW8–9 : Continuity with select SW at right side
Approx. 100 Ω with select SW at left side7–9 : Approx. 100 Ω with operation SW at up side
Approx. 250 Ω with operation SW at right sideApprox. 470 Ω with operation SW at down sideApprox. 800 Ω with operation SW at left side
: PARTS LOCATION
Code See Page Code See Page Code See Page
A13 40 E7 F 36 (1UZ–FE) J17 41
B5 A 40 F11 A 42 M3 41
B6 A 40 F12 B 42 M7 41
C13 40 F13 C 42 R6 41
D22 A 42 J6 41R16
A 43
D23 B 42 J7 41R16
B 43
D24 C 42 J10 41R17
A 43
D25 42 J13 41R17
B 43
E5 D 38 (2JZ–GE) J15 41 T5 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
2B 28 Engine Room Main Wire and Passenger Side J/B (Right Kick Panel)
2F 28
2G29
Cowl Wire and Passenger Side J/B (Right Kick Panel)
2H29
g ( g )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IB1 50 Front Door LH Wire and Cowl Wire (Left Kick Panel)
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IJ1 52 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IK1 52 Front Door RH Wire and Cowl Wire (Right Kick Panel)
SYSTEM OUTLINE
SERVICE HINTS
: GROUND POINTS
Code See Page Ground Points Location
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I 6 52 Cowl Wire
3 7 X X
X 15 19
1 6 7 8 X
X 19 X X X X
5 X X
X
X 16
1
X
9
8
16 8
1 2 3 4 X X 7 8 9
10 X 12 131415 16 X
1 X 3 X 5 X 7X X X X
X X X X
X X X 28
X
27
X X X X X X 11 X X
24 X X X X 8
X X X
1 2 3 X X X 7 8
10 X 12 13 X X 16 X 18
A13 B5 (A) B6 (A)
C13GRAY GRAY
GRAY (2JZ–GE)
(1UZ–FE)
BLUE
GRAY GRAY
D22 (A) D23 (B)
D24 (C) D25 E5 (D)
E7 (F) F11 (A) F12 (B)
1
2 X
X1 1
REMOTE CONTROL MIRROR
X X X X 7 8 9 X
125
6X8910114
XXX 6 5 4
D
DD
D
AAAA A A
2 X
X 8 X X X X X
6 7 X
B
B B B B
J13 J15 J17
BLUE BLACK
(w/ Driving Position Memory) (w/ Driving Position Memory)
(w/o Driving Position Memory) GRAY
(w/o Driving Position Memory)
B B B B B B B
A A
A A A AA A A A AA A A A A A A A1
X
9
8
GRAYJ6
ORANGEGRAY
(Hint : See Page 7) (Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
F13 (C) J7 J10
M3 R6
R16 (A) R16 (B) R17 (A)
R17 (B) T5
1
1
125
6X89101141
XXX 6 5 4
3 4
M7DARK GRAY
MEMO
SEAT HEATER
IL29
BD12
2
1
2
1
B
B
BD112
BL
3
L–Y
L–Y
L–Y
L–B
W–B
W–B
W–B
E
IC29
2 BC1
2
1
2
1
A
A
12 BC1
BJ
2
B–Y
B–Y
B–Y
L–B
W–B
W–B
W–B
LH
A
A
A
IF
J 6JUNCTIONCONNECTOR
EB
A
A
B
B
4
JUNCTIONCONNECTOR
J11
JUNCTIONCONNECTOR
J10
W–B
W–B
W–B
RH
W–B
W–B
SEAT HEATER SWS 3
LG
6
IG
SE
AT
HE
ATE
R( F
RO
NT
PA
SS
EN
GE
R’
S S
EA
T C
US
HIO
N)
S22
SE
AT
HE
AT
ER
( FR
ON
T P
AS
SE
NG
ER
’S
SE
AT
BA
CK
)
S21
JUN
CTI
ON
CO
NN
EC
TOR
J24
SE
AT
HE
ATE
R( D
RIV
ER
’S
SE
AT
CU
SH
ION
)
S20
SE
AT
HE
AT
ER
( DR
IVE
R’
S S
EA
T B
AC
K)
S19
JUN
CTI
ON
CO
NN
EC
TOR
J23
15AECU–IG
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1H5
120AALT
1
2 5
1 3
2F11 2A1
2G6
20ASEATHTR
2F5
2F13
JUN
CTI
ON
CO
NN
EC
TOR
J 7
JUN
CTI
ON
CO
NN
EC
TOR
J15
B
B
2
1
B
B
LGB
B–R
B–R
B–R
B–R
IGRELAY
II
W–B
W–B
W–B
S3 SEAT HEATER SW6–GROUND : Approx. 12 volts with ignition SW at ON or ST position4–GROUND : Always continuity
: PARTS LOCATION
Code See Page Code See Page Code See Page
J6 41 J15 41 S19 44
J7 41 J23 44 S20 44
J10 41 J24 44 S21 44
J11 41 S3 41 S22 44
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1H 27 Cowl Wire and Driver Side J/B (Left Kick Panel)
2A 28 Engine Room Main Wire and Passenger Side J/B (Right Kick Panel)
2F 28Cowl Wire and Passenger Side J/B (Right Kick Panel)
2G 29Cowl Wire and Passenger Side J/B (Right Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IC2 50 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
IL2 52 Floor No.1 Wire and Cowl Wire (Right Kick Panel)
BC1 56 Floor No.2 Wire and Front Seat LH Wire (Under the Driver’s Seat)
BD1 56 Floor No.1 Wire and Front Seat RH Wire (Under the Front Passenger’s Seat)
: GROUND POINTS
Code See Page Ground Points Location
EB46 (1UZ–FE)
Left FenderEB48 (2JZ–GE)
Left Fender
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
BJ 54 Rear Floor Partition Panel LH
BL 54 Rear Floor Partition Panel RH
SERVICE HINTS
SEAT HEATER
2
3 4 61 2
1 2 1 2 1 2
B B B B B B B
A A
A A A AA A A A AA A A A A A A A
AAAA A A
BB
B B B B
B B B B B B B
B
B B B B
J6ORANGE GRAY
J23 J24 S3GRAY
GRAY GRAY GRAY
GRAY
J15
(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7) (Hint : See Page 7)
J7 J10 J11
S19
S20 S21 S22
MEMO
SHIFT LOCK
10AGAUGE
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1H4
15ARADIONO. 2
1H10
B
B
D
D
C
B
EA39
9
4
EA33
BE
AE
B
B
2 L 4
B21D3
A14F16
D7 (*2)F25 (*1)
EA47
EA49
D
D
II IF EB
A
A
A
A
A
3
4
2F13
2G6
JUNCTIONCONNECTOR
J10
KEY INTERLOCKSOLENOID[UNLOCK WARNING SW]
U 1
JUNCTIONCONNECTOR
J17
JUNCTIONCONNECTOR
J13JUNCTIONCONNECTOR
J17
JUNCTIONCONNECTOR
J 1
JUNCTIONCONNECTOR
J 1
JUNCTIONCONNECTOR
J 9
BODY ECU NO. 2B 6
SHIFT LOCK CONTROL ECUS 4
A/T
IND
ICA
TOR
LIG
HT
SW
[PA
RK
/NE
UTR
AL
PO
SIT
ION
SW
]
P 1
JUN
CT
ION
CO
NN
EC
TOR
ENGINE CONTROL MODULER
–L GR
R–L
R–L GR
R–L
Y–B
Y–B
W–B
G–O
G–Y
L–R
W–B
W–B
W–B
Y–G
G–B
Y–B
W–B
W–B
W–B
G–B
(*2)
G–B
( *1)
R–Y
( *2)
R–Y
( *1)
R–Y
( *2)
4 3 9 2
20 21
A
5 10 7 8 1
A
B
C(*2)(*1)
(*1)(*2)
JUNCTIONCONNECTOR
J 6
* 1 : 1UZ–FE* 2 : 2JZ–GE
G–B
( *2)
BJ
3A
, J
4
BE 2 A , E 3 D, E 5 F, E 7
G–B
( *2)
P1 SLCK
NSSD E P1 SLS+ KLS+
AT4ATLNSSLACC
(*1)
1. SHIFT LOCK MECHANISMIf the brake pedal is depressed with the ignition SW set at ON (The stop light SW is on), the shift lock control ECU isactivated, allowing the driver to change the shift lever to a position other than the P position.
2. REVERSE INHIBIT MECHANISMChanging the shift lever to the R position is inhibited by operation of the shift lock control ECU and body ECU No.2 while thevehicle is travelling forward.If the vehicle speed is almost 0 km/h, the signal is input to TERMINAL 8 of the shift lock control ECU through communicationcontrol of the body ECU and door ECU etc. , allowing the driver to change the shift lever to the R position.
3. KEY INTERLOCK MECHANISMWhen the ignition SW is turned to the ACC or ON position and the shift lever is at a position other than the P position, theshift lock control ECU is activated to flow the current into the key interlock solenoid. This inhibits to turn the ignition SW fromthe ACC position to the OFF position.
S4 SHIFT LOCK CONTROL ECU4–GROUND : Approx. 12 volts with ignition SW at ACC or ON position
10–GROUND : Always continuity
: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 40 J1 39 (2JZ–GE) J10 41
E2 A 38 (2JZ–GE)J3 A
37 (1UZ–FE) J13 41
E3 B 38 (2JZ–GE)J3 A
39 (2JZ–GE) J17 41
E5 D36 (1UZ–FE)
J4 B37 (1UZ–FE)
P137 (1UZ–FE)
E5 D38 (2JZ–GE)
J4 B39 (2JZ–GE)
P139 (2JZ–GE)
E7 F 36 (1UZ–FE) J6 41 S4 41
J1 37 (1UZ–FE) J9 41 U1 41
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1H 27 Cowl Wire and Driver Side J/B (Left Kick Panel)
2F 28Cowl Wire and Passenger Side J/B (Right Kick Panel)
2G 29Cowl Wire and Passenger Side J/B (Right Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA346 (1UZ–FE)
EA348 (2JZ–GE) Engine Wire and Cowl Wire (Inside of the ECU Box)
EA4 48 (2JZ–GE)
g ( )
: GROUND POINTS
Code See Page Ground Points Location
EB46 (1UZ–FE)
Left FenderEB48 (2JZ–GE)
Left Fender
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
SYSTEM OUTLINE
SERVICE HINTS
SHIFT LOCK
X
X 2021 X X X XX14
X
X 3 X
X X
X
X
X
X X X X
X X X X
X X X
7
X
X X X X X X X X
16 25
CCXXXX X X X X C C
BBXXX D D D B
E E
A A
A A A A
BB
B
A A A A AA A A A A A A A
D
DD
D
BBAAAA A A B B B B
X
21
E E
X
4 9
10987X54321
3 4
B6(2JZ–GE) (2JZ–GE)
(1UZ–FE) (2JZ–GE) (1UZ–FE)
(2JZ–GE) BLACKJ3 (A) J4 (B)
J6(1UZ–FE) ORANGE
J13 J17GRAY
S4 U1
(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
E2 (A) E3 (B)
E5 (D) E5 (D) E7 (F)
J1 J1
J9 J10
P1
(1UZ–FE) GRAY
MEMO
SRS
NOTICE: When inspecting or repairing the SRS, perform the operation in accordance with the following precautionaryinstructions and the procedure and precautions in the Repair Manual for the applicable model year.
Malfunction symptoms of the SRS are difficult to confirm, so the DTCs become the most important source of informationwhen troubleshooting. When troubleshooting the SRS, always inspect the DTCs before disconnecting the battery.
Work must be started after 90 seconds from when the ignition switch is turned to the ”LOCK” position and thenegative (–) terminal cable is disconnected from the battery.(The SRS is equipped with a back–up power source so that if work is started within 90 seconds fromdisconnecting the negative (–) terminal cable of the battery, the SRS may be deployed.)
When the negative (–) terminal cable is disconnected from the battery, the memory of the clock and audio system will becanceled. So before starting work, make a record of the contents memorized in the audio memory system. When work isfinished, reset the audio systems as they were before and adjust the clock. To avoid erasing the memory in eachmemory system, never use a back–up power supply from outside the vehicle.
Before repairs, remove the airbag sensor if shocks are likely to be applied to the sensor during repairs.
Do not expose the steering wheel pad, front passenger airbag assembly, side airbag assembly, seat belt pretensioner,center airbag sensor assembly, front airbag sensor or side airbag sensor assembly directly to hot air or flames.
Even in cases of a minor collision where the SRS does not deploy, the steering wheel pad, front passenger airbagassembly, side airbag assembly, seat belt pretensioner, center airbag sensor assembly, front airbag sensor assemblyand side airbag sensor assembly should be inspected.
Never use SRS parts from another vehicle. When replacing parts, replace them with new parts.
Never disassemble and repair the steering wheel pad, front passenger airbag assembly, side airbag assembly, seat beltpretensioner center airbag sensor assembly, front airbag sensor assembly or side airbag sensor assembly in order toreuse it.
If the steering wheel pad, front passenger airbag assembly, side airbag assembly, seat belt pretensioner, center airbagsensor assembly, front airbag sensor assembly or side airbag sensor assembly has been dropped, or if there arecracks, dents or other defects in the case, bracket or connector, replace them with new ones.
Use a volt/ohmmeter with high impedance (10 kΩ/V minimum) for troubleshooting the system’s electrical circuits.
Information labels are attached to the periphery of the SRS components. Follow the instructions on the notices.
After work on the SRS is completed, perform the SRS warning light check or SRS side airbag warning light check.
If the vehicle is equipped with a mobile communication system, refer to the precaution in the IN section of the RepairManual.
SRS
5AIGN
1N4
15ASRS–ACC
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1N1
5A SRS–B
1D3
B5 B6 B3
12
14
1D9
1N3
1F
4
EA13 EA112
B19 B12
CD
5 11 7
D C
SRS WARNING LIGHT[COMB. METER]
C12
DATA LINKCONNECTOR 1
D 1DATA LINKCONNECTOR 3
D 4
JUNCTIONCONNECTOR
J 9
B9
II31 II32
B20 B15 B26
IF11 IF12
A7 A9 A10 A12 C12 C10 9 C C7 B27
IG
–SR+SR +SL –SL VUPL SSL FSL ESL VUPR SSR FSR ESR E1
1 2 3 4 1 2 3 4
1212
B–W
BR
–W
W–R BR
B–W
BR
–W
W–R BR
P–L
L–W
LG–B
GR
–L P L–Y
LG GR
W–B
W–B
AIRBAG SENSORFRONT RH
A12AIRBAG SENSORFRONT LH
A11SIDE AIRBAG SENSORLH
S12SIDE AIRBAG SENSORRH
S13
CENTER AIRBAG SENSOR ASSEMBLY
B–O GR
L–B
B–Y
LG
LG P
W
P–BLG
P–B W
LG
AB SILTC
IG2 ACC LA TC SIL
BC 7 A , C 8 C, C 9
VUPL SSL FSL ESL VUPR SSR FSR ESR
B4 CENTER AIRBAG SENSOR ASSEMBLY A2 A1 C5 C6
1 2
SPIRALCABLE
1 2 1 2 1 2
IF EB
B14 B13 B10 B11 A5 A6 C2 C1 B28
AA
Y–B Y
Y–R
Y–G
Y–R
Y–G
Y–R
Y–G
W–B
W–B
W–B
D+ D– P+ P– SFL+ SFL– SFR+ SFR– E2
GSW PL+ PL– PR+ PR–
JUNCTIONCONNECTOR
J 6AIRBAG SQUIB(STEERING WHEEL PAD)
A29AIRBAG SQUIB(FRONT PASSENGER AIRBAG ASSEMBLY)
A28SIDE AIRBAGSQUIB LH
S23SIDE AIRBAGSQUIB RH
S24
BODY ECUNO. 2
B 6
PRETENSIONER LHP14
PRETENSIONER RHP15
L
Y–B Y
Y–B Y
1 2 1 2
18
GSW
BC 7 A , C 8 C, C 9
SRS
The SRS is a driver and front passenger protection device which has a supplemental role to the seat belts.When the ignition SW is turned to ACC or ON, the current from the SRS–ACC fuse flows to TERMINAL (B) 6 of the centerairbag sensor assembly. Only when the ignition SW is on does the current flow from the IGN fuse to TERMINAL (B) 5 of thecenter airbag sensor assembly.If an accident occurs while driving, when the frontal impact exceeds a set level, the current from the SRS–ACC or IGN fuseflows to TERMINALS (B) 14, (B) 10, (C) 5 and (A) 2 of the center airbag sensor assembly to TERMINAL 1 of the airbagsquibs and the pretensioners to TERMINAL 2 to TERMINALS (B) 13, (B) 11, (C) 6 and (A) 1 of the center airbag sensorassembly to TERMINAL (B) 27, (B) 28 or BODY GROUND to GROUND, so that current flows to the airbag squibs and thepretensioners and causes them to operate.When the side impact also exceeds a set level, the current from the SRS–ACC or IGN fuse flows to TERMINALS (C) 2, (A)5, (C) 5 and (A) 2 of the center airbag sensor assembly to TERMINAL 1 of the side airbag squibs and the pretensioners toTERMINAL 2 to TERMINALS (C) 1, (A) 6, (C) 6 and (A) 1 of the center airbag sensor assembly to TERMINAL (B) 27, (B) 28or BODY GROUND to GROUND, causing side airbag squibs and the pretensioners to operate.The airbag stored inside the steering wheel pad is instantaneously expanded to soften the shock to the driver.The airbag stored inside the passenger’s instrument panel is instantaneously expanded to soften the shock to the frontpassenger.Side airbags are instantaneously expanded to soften the shock of side to the driver and front passenger.The pretensioners make sure of the seat belt restrainability.
: PARTS LOCATION
Code See Page Code See Page Code See Page
A1136 (1UZ–FE) C8 B 40 P14 43
A1138 (2JZ–GE) C9 C 40 P15 43
A1236 (1UZ–FE) C12 40 S12 43
A1238 (2JZ–GE)
D136 (1UZ–FE) S13 43
A28 40D1
38 (2JZ–GE) S23 44
A29 40 D4 40 S24 44
B6 40 J6 41
C7 A 40 J9 41
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1D 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26Cowl Wire and Driver Side J/B (Left Kick Panel)
1N 27Cowl Wire and Driver Side J/B (Left Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA146 (1UZ–FE)
Engine Wire and Cowl Wire (Inside of the ECU Box)EA148 (2JZ–GE)
Engine Wire and Cowl Wire (Inside of the ECU Box)
IF1 50 Cowl Wire and Cowl Wire (Right Side of the Steering Column)
II3 52 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
: GROUND POINTS
Code See Page Ground Points Location
EB46 (1UZ–FE)
Left FenderEB48 (2JZ–GE)
Left Fender
IF 50 Left Kick Panel
IG 50 Left Side of the Cowl Panel
SYSTEM OUTLINE
1 2 1 2 1 2 X
X 18 X X X X
1 2 X X 5 6
7 X 9 10 X 12
A B
X XX 26X20 X 2827
X X 3 4 5 6
X X 9 10 11 12 13 14 15 X X
X 19
A B
1 2 X X 5 6
7 X 9 10 X12
A B
X X X 5 X
X X X X 11
X X X X X
X
X
X
A A
A A A A C
CC
CC
D
DD
D
21 21
1 23 4
X
X
X
XX
XX
X
14
12
X X X X X X X
X 7 X X X X
C
CC
CC
XX
D
X
DD
D
1 2
1 23 4
X X 5 X
X X X X 11
X X X X X
X
X
YELLOW YELLOW YELLOW YELLOWB6
YELLOW YELLOW YELLOWC12
(1UZ–FE) BLACK
D4 J6(1UZ–FE)
YELLOW YELLOW YELLOW(2JZ–GE) YELLOW
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
A11 A12 A28 A29
C7 (A) C8 (B) C9 (C)
D1
J9
J9 P14 P15 S12 S13
(2JZ–FE) BLACKD1
SRS
1 2 1 2
YELLOW YELLOWS23 S24
MEMO
STARTING AND IGNITION (1UZ–FE)
1
40A
MA
IN
15A
AM
2
1
IA19
7 6
8
AM2 IG2
ST2
1F10
5ASTARTER
1F1
EA35 EA26
EC11
P
N
6
5
3 2
5 1
MB1
A1
1 1
1
EA28
II48
EE
E 2
1
BA
A11
AC AC
D17
IA27 EA34
1 1
A
2 3
A
41
22
STARTER
BA
JUNCTIONCONNECTOR
J15
PA
RK
/NE
UTR
AL
PO
SIT
ION
SW
P 1
NO
ISE
FIL
TER
( IG
NIT
ION
)
N 1
IGN
ITIO
N C
OIL
AN
D I
GN
ITE
R N
O.
1
I 2
JUN
CTI
ON
CO
NN
EC
TOR
BA
EN
GIN
E C
ON
TRO
L M
OD
ULE
DA
B–L
IGNITION SWI22
B
W–R
BB
–R
W–B
BY
–B
BBB B
G–B
W–R
B–L
B–L
B–W
B–W
B–W
B–WBB
B
B
B–W
B–W
BR
B–W
IGT1
STA
B–L
BATTERY
STARTERRELAY
B
W–B
S 1 , S 2
E 2
, E
5
J 3
, J
4
A
A
JUN
CTI
ON
CO
NN
EC
TOR
J 5
E 2
A14
2 3
41
IGN
ITIO
N C
OIL
AN
D I
GN
ITE
R N
O.
4
I 5
G–B
B–W
B–W
BR
IGT4
E 1
E 2
G–B
B–R
G–B
B–W
BR
E 2
A16
2 3
41
IGN
ITIO
N C
OIL
AN
D I
GN
ITE
R N
O.
6
I 7
G–B
B–W
B–W
BR
IGT6
E 2
E 1
G–B
R–L
E 2
A25
2 3
41
IGN
ITIO
N C
OIL
AN
D I
GN
ITE
R N
O.
7
I 8
B–W
B–W
BR
IGT7
E 2
E 1
G–B
Y–R
E 2
A12
2 3
41
IGN
ITIO
N C
OIL
AN
D I
GN
ITE
R N
O.
2
I 3
B–W
B–W
BR
IGT2
E 1
R
Y–G
BR BR BR
A27
IGF1
G–B
E 2
A13
2 3
41
IGN
ITIO
N C
OIL
AN
D I
GN
ITE
R N
O.
3
I 4
B–W
B–W
BR
IGT3
E 1
E 1
R
R–W
E 2
A15
2 3
41
IGN
ITIO
N C
OIL
AN
D I
GN
ITE
R N
O.
5
I 6
B–W
B–W
BR
IGT5
E 1
E 1R
L–Y
A26
2 3
41IG
NIT
ION
CO
ILA
ND
IG
NIT
ER
NO
. 8
I 9
B–W BR
IGT8
E 1
E 1
R
L–W
A28
IGF2
R
BR BR BR
R R
BR
ED
BR
ENGINE CONTROL MODULE
DAE 2 , E 5
STARTING AND IGNITION (1UZ–FE)
I22 IGNITION SW7–6 : Closed with ignition SW at ON or ST position7–8 : Closed with ignition SW at ST position
P1 PARK/NEUTRAL POSITION SW6–5 : Closed with A/T shift lever in P or N position
S1 (A), S2 (B) STARTERPoints closed with Park/Neutral position SW at P or N position and ignition SW at ST position
: PARTS LOCATION
Code See Page Code See Page Code See Page
E2 A 36 (1UZ–FE) I7 37 (1UZ–FE) J15 41
E5 D 36 (1UZ–FE) I8 37 (1UZ–FE) N1 37 (1UZ–FE)
I2 37 (1UZ–FE) I9 37 (1UZ–FE) P1 37 (1UZ–FE)
I3 37 (1UZ–FE) I22 41 S1 A 37 (1UZ–FE)
I4 37 (1UZ–FE) J3 A 37 (1UZ–FE) S2 B 37 (1UZ–FE)
I5 37 (1UZ–FE) J4 B 37 (1UZ–FE)
I6 37 (1UZ–FE) J5 37 (1UZ–FE)
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1F 26 Cowl Wire and Driver Side J/B (Left Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA246 (1UZ FE) Engine Wire and Cowl Wire (Inside of the ECU Box)
EA346 (1UZ–FE) Engine Wire and Cowl Wire (Inside of the ECU Box)
EC1 46 (1UZ–FE) Engine No.2 Wire and Engine Wire (Near the Starter)
IA150 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
IA250 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
II4 52 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
: GROUND POINTS
Code See Page Ground Points Location
ED 46 (1UZ–FE) LH Bank of the Cylinder Head
EE 46 (1UZ–FE) Under the ABS & TRAC & VSC Actuator
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E1 46 (1UZ–FE) Engine Wire E2 46 (1UZ–FE) Engine Wire
SERVICE HINTS
1 2 3 4 1 2 3 4
1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
1 2 3 4
X
X 6 7 8
1 XX
5 6
1
1
X X
X X
X
17
X
X
161514
2726
1311
25
28
12
X
A A
A A
A A
C C
AAAAAA A A A A A A
E2 (A) E5 (D)BLACK BLACK
BLACK BLACK BLACK BLACK BLACK
BLACKI22 J3 (A) J4 (B)
J15GRAY GRAY
BLACKS2 (B)
BLUE
(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
I2 I3
I4 I5 I6 I7 I8
I9
J5 N1 P1
S1 (A)
STARTING AND IGNITION (2JZ–GE)
1
40A
MA
IN
15A
AM
2
1
IA19
7 6
8
AM2 IG2
ST2
1F10
5ASTARTER
1F1
EA35
P
N
6
5
3 2
5 1
MB1
A1
1 1
1
EA28
II48
EE
BA
AC AC
IA27 EA34
1 1
22
STARTER
BS 1 S 2A
PA
RK
/NE
UTR
AL
PO
SIT
ION
SW
P 1
JUN
CTI
ON
CO
NN
EC
TOR
BA
B–L
IGNITION SWI22
B
W–R
B
W–B
BBB B
W–R
B–L
B–L
BB
B
B
B–W
BATTERY
B–L
STARTERRELAY
B
W–B
B–W
B
,
J 3
, J
4
A
A
JUN
CT
ION
CO
NN
EC
TO
R
J 5
EA26
1
D2
A
A
JUNCTIONCONNECTOR
J15
NO
ISE
FIL
TE
R( IG
NIT
ION
)
N 1
B
B–W
B–W
B–W
B–W
STA
IGN
ITE
RI
1
E 2
A25
4
1
B–R
B–W
IGF
B
E 2
A11
7
2
B
B–W
IGT
B–Y
E 2
A12
6
10
W
B–W
IGT2
B–L
A13
5
9
B–W
IGT3
B–R
3
BR
ENGINE CONTROL MODULE
DE 2 E 5A
2
1
2
1
2
1
B–W
B
C2 C3 C1 +B TAC
GNDIN3IN2IN1IGF
B–W
B–W
B–W
IGN
ITIO
N C
OIL
NO
. 1
I10
IGN
ITIO
N C
OIL
NO
. 2
I11
IGN
ITIO
N C
OIL
NO
. 3
I12
8
EA32
C
C
JUNCTIONCONNECTOR
J 1
B–Y
B–Y
G–B
TO
CO
MB
INA
TIO
NM
ET
ER
,
ED
C
IG–
B–Y
D 1
DA
TA
LIN
KC
ON
NE
CTO
R 1
19
STARTING AND IGNITION (2JZ–GE)
I22 IGNITION SW7–6 : Closed with ignition SW at ON or ST position7–8 : Closed with ignition SW at ST position
P1 PARK/NEUTRAL POSITION SW6–5 : Closed with A/T shift lever in P or N position
S1 (A), S2 (B) STARTERPoints closed with Park/Neutral position SW at P or N position and ignition SW at ST position
: PARTS LOCATION
Code See Page Code See Page Code See Page
D1 I12 39 (2JZ–GE) J15 41
E2 A 38 (2JZ–GE) I22 41 N1 39 (2JZ–GE)
E5 D 38 (2JZ–GE) J1 39 (2JZ–GE) P1 39 (2JZ–GE)
I1 39 (2JZ–GE) J3 A 39 (2JZ–GE) S1 A 39 (2JZ–GE)
I10 39 (2JZ–GE) J4 B 39 (2GZ–GE) S2 B 39 (2JZ–GE)
I11 39 (2JZ–GE) J5 39 (2JZ–GE)
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1F 26 Cowl Wire and Driver Side J/B (Left Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA248 (2JZ GE) Engine Wire and Cowl Wire (Inside of the ECU Box)
EA348 (2JZ–GE) Engine Wire and Cowl Wire (Inside of the ECU Box)
IA150 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
IA250 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
II4 52 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
: GROUND POINTS
Code See Page Ground Points Location
ED 48 (2JZ–GE) Rear Side of the Intake Manifold
EE 48 (2JZ–GE) Under the ABS & TRAC & VSC Actuator
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E 2 48 (2JZ–GE) Engine Wire
X
1311
25
12
X
X X X X
X X X X
X X X
X
2
X X X
X X X X
X X X X X
X
X
19
E2 (A) E5 (D)D1BLACK
SERVICE HINTS
1 2 3 4 5 109876
1 2 1 2 1 2
X
X 6 7 8
1 X
1
1
A A
X
5 6
A A
A A
C C
XXXC C C
AAAAAA A A A A A A
BLACKI1
BLACK BLACK BLACK
I22BLACK
J3 (A) J4 (B)
J15GRAY GRAY
BLACKS2 (B)
BLUE
(Hint : See Page 7)
(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
I10 I11 I12
J1
J5 N1 P1
S1 (A)
STOP LIGHT
10AGAUGE
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1H4
15ASTOP
1H8
1
2
IC39IC114
WG
–WG
–WG
–WG
R–L
R–L
R–L
B
AB
BA
BB
109 8
5
2
5
2
3
2
3
2
B 5 B 5 B 5
B 4 B 4 B 4 B 4
B 4
BK
21
A
11
G–W
G–W
G–W
G–W
W–B
W–B
W–B
W–B
W–B
G–W
W–BW–B W–B W–B
G–WG–W
G–W
STOP LIGHTSW
S11
JUNCTIONCONNECTOR
J 7
JUNCTIONCONNECTOR
J19
JUNCTIONCONNECTOR
J17
STO
P L
IGH
T L
H[R
EA
R C
OM
B.
LIG
HT
LH
]
R 8
STO
P L
IGH
T R
H[R
EA
R C
OM
B.
LIG
HT
RH
]
R10
STO
P L
IGH
T L
H[R
EA
R C
OM
B.
LIG
HT
LH
]
R 9
STO
P L
IGH
T R
H[R
EA
R C
OM
B.
LIG
HT
RH
]
R11
LIGHT FAILURE SENSORL 4
4
–+
+–
+– DELAY
CIRCUIT
JUNCTIONCONNECTOR
J20
1D4
R–L
W–B
W–B
6
V–R
G–R
G–Y
W–B
R–L
GND HS2
WRNIG HSI
ST–
ST+1 ST+2
2
1
G–R
B 4
D
2
D
21
G–Y G–Y
W–B
W–B
JUN
CT
ION
CO
NN
EC
TO
R
J19
HIG
H M
OU
NT
ED
STO
P L
IGH
T
H24
IC14
LF
V–R
V–R
( *1)
( *2)
( *2)
NOISE FILTER(HIGH MOUNTED STOP LIGHT)
N 4
IFII
IE18
A1
CPU
B11 A22
C12
RE
AR
LIG
HT
S W
AR
NIN
G L
IGH
T[C
OM
B.
ME
TE
R]B
A,
C13
1D5
1G61F13
A
A
A
W–B
W–B
W–B
W–B
MPX2
W
* 1 : W/ REAR SPOILER* 2 : W/O REAR SPOILER
3
R–L
V–R
G–R
G–Y
W–B
G–R
G–Y
D
JUNCTIONCONNECTOR
J17
JUNCTIONCONNECTOR
J 6
R–L
( *1)
(*2)
1HIGH MOUNTEDSTOP LIGHT
H23
A4 11A19
GND
B 6 A
BODY ECU NO. 2
W
W
STOP LIGHT
The current always flows from the STOP fuse into TERMINAL 2 of the stop light SW. If the brake pedal is depressed, thestop lights light up.
STOP LIGHT DISCONNECTION WARNINGIf any stop light wiring is faulty when the brake pedal is depressed with the ignition SW set at ON, the light failure sensordetects a voltage difference and inputs the signal to TERMINAL 4 of the body ECU No.2. The body ECU No.2 controls thecombination meter through the communication to turn on the rear lights warning light to warn the driver. The warning light isremained lit until the ignition SW is turned to the OFF position.
S11 STOP LIGHT SW1–2 : Closed with brake pedal depressed
L4 LIGHT FAILURE SENSOR9, 10–GROUND : Approx. 12 volts with stop light SW on
8–GROUND : Approx. 12 volts with Ignition SW at ON or ST position11–GROUND : Always continuity
: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 A 40 J7 41 R8 43
C12 A 40 J17 41 R9 43
C13 B 40 J19 42 R10 43
H23 42 J20 42 R11 43
H24 42 L4 43 S11 41
J6 41 N4 43
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1D 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IC150 Floor No 2 Wire and Cowl Wire (Left Kick Panel)
IC350 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
: GROUND POINTS
Code See Page Ground Points Location
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
BK 54 Quarter Panel LH
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
B4 54 Floor No.2 Wire B5 54 Floor No.2 Wire
SYSTEM OUTLINE
SERVICE HINTS
1 32 12A A A
A A A
BBAAAA A A B B B B
B B
B D D D
A A
A A A A 1 2 2
5
2X 3
2
5
2X 3
1
2
4 X
X 19 X X X X
X
22X
X
XX
XX
X
1
A A
A A A A
4X216 8 9 1011
H23 H24GRAY
J17
BLUEJ20 L4 N4 R8
R9 R10 R11BLUE
B6 (A) C12 (A) C13 (B)
J6
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7) (Hint : See Page 7)
J7
J19
S11
X
X1 1
TAILLIGHT
120A
ALT
1
2
1
1
2 3
1 5
1K1
1H2
10ATAIL
1B9
OFF
TAIL
HEAD
A2
1H13
6
IF
JUNCTIONCONNECTOR
J 6
A
II
2F13
2G6
1
2
FRO
NT
SID
E M
AR
KE
RLI
GH
T LH
F 3
2
4
PA
RK
ING
LIG
HT
LHF
5
2
1
FRO
NT
SID
E M
AR
KE
RLI
GH
T R
H
F 4
2
4
PA
RK
ING
LIG
HT
RH
F 6
2
1
LIC
EN
SE
PLA
TELI
GH
T LH
L 2
2
1
LIC
EN
SE
PLA
TELI
GH
T R
H
L 3
1B4 1G3 1E11
E 4 I 5 B 4
EB EA
AA
D C
15
CD C
A
CD
A
JUNCTIONCONNECTOR
J19JUNCTIONCONNECTOR
J14
16
G
W–BW–BW–B W–B
W–B
G
G–R
GGG G G G
GG
R–Y
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
B–L
W
TAIL
TRLY
BA
TTE
RY
W–B
W–B
TAILRELAY
1G6 1D51F13
JUN
CTI
ON
CO
NN
EC
TOR
J10
LIG
HT
CO
NTR
OL
SW
[CO
MB
. S
W]
C14
JUN
CTI
ON
CO
NN
EC
TOR
J17
A
A
W–B
W–B
B 6
BODY ECU NO. 2
A
11
GND
W–B
W–B
W–B
W–B
W–B
W–B A
A4A19
W V–R
V–R
W
MPX2 LF
II215 II26G G
10AGAUGE
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1H4
IC114 IC14
A
BK
J20JUNCTIONCONNECTOR
B 4
3
1
B 4
TA
ILLI
GH
T R
H[R
EA
R C
OM
B.
LIG
HT
RH
]
R11
3
1
B 4
TA
ILLI
GH
T LH
[RE
AR
CO
MB
. LI
GH
T LH
]
R 9
TAIL
SID
EM
AR
KE
R
RE
AR
CO
MB
INA
TIO
NLI
GH
T LH
R 8
B 4
TAIL
SID
EM
AR
KE
R
RE
AR
CO
MB
INA
TIO
NLI
GH
T R
H
R10
B 4
B 5
B 4 B 4 B 4
5 5
127
B
8 4
1 3 1 3
LIGHT FAILURE SENSORL 4
5
JUNCTIONCONNECTOR
J17
B
G
W–B W–B W–B W–B W–B
G–YG–YG–Y
G–R
R–L
R–L
R–L
V–RG
V–R
G–Y
G–Y
G–R
G–Y
G–R
G–R
G–Y
G–Y
W–B
W–B W
–B
W–B
W–B
W–B
W–B
+–
+– D
ELA
YC
IRC
UIT
11 W–B
1D4
A1
CPU
B11 A22
IE18
WW
R–L
W
W–B
RE
AR
LIG
HT
TAIL
5ASRS–B
1D3
A14
( *1)
( *1)
L–B
( *1)
* 1 : CANADA, TAIWAN
C12
COMBINATIONMETER
BA , C13
W–B
V–R
W
WRNIGT+
T–2 T–1GND
TAILLIGHT
When the light control SW is turned to the TAIL or HEAD position, the signal is input to TERMINAL TAIL of the body ECUNo.2. This activates the body ECU No.2 to flow the current from the battery into the ALT fuse, TAIL relay (Coil side),TERMINAL TRLY of the body ECU No.2 to GROUND in that order to turn on the TAIL relay. The current flows from the TAILfuse into the parking lights, front side marker lights, license plate lights, TERMINAL 5 of the light failure sensor to TERMINAL7 and 12 to taillights, and rear side marker lights in that order to turn on each light.
TAILLIGHT DISCONNECTION WARNINGIf any taillight wiring is faulty when the ignition SW is turned to the ON position with the light control SW set at TAIL or HEAD,the light failure sensor detects a voltage difference and inputs the signal to TERMINAL LF of the body ECU No.2. The bodyECU No.2 is activated to turn on the rear lights warning light in the combination meter to warn the driver.
C14 LIGHT CONTROL SW [COMB. SW]15–16 : Closed with light control SW at TAIL or HEAD position
L4 LIGHT FAILURE SENSOR8–GROUND : Approx. 12 volts with ignition SW at ON or ST position5–GROUND : Approx. 12 volts with light control SW at TAIL or HEAD position
11–GROUND : Always continuity
: PARTS LOCATION
Code See Page Code See Page Code See Page
B6 A 40 F5 38 (2JZ–GE) L2 43
C12 A 40F6
36 (1UZ–FE) L3 43
C13 B 40F6
38 (2JZ–GE) L4 43
C14 40 J6 41 R8 43
F336 (1UZ–FE) J10 41 R9 43
F338 (2JZ–GE) J14 41 R10 43
F436 (1UZ–FE) J17 41 R11 43
F438 (2JZ–GE) J19 42
F5 36 (1UZ–FE) J20 42
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1B 26 Cowl Wire and Driver Side J/B (Left Kick Panel)
1D 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1E 26 Floor No.2 Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
1K 26 Engine Room Main Wire and Driver Side J/B (Left Kick Panel)
2F 28Cowl Wire and Passenger Side J/B (Right Kick Panel)
2G 29Cowl Wire and Passenger Side J/B (Right Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IC1 50 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
SYSTEM OUTLINE
SERVICE HINTS
: GROUND POINTS
Code See Page Ground Points Location
EA46 (1UZ–FE)
Right FenderEA48 (2JZ–GE)
Right Fender
EB46 (1UZ–FE)
Left FenderEB48 (2JZ–GE)
Left Fender
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
BK 54 Quarter Panel LH
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E446 (1UZ–FE)
Cowl WireB4
54 Floor No 2 WireE448 (2JZ–GE)
Cowl WireB5
54 Floor No.2 Wire
I5 52 Engine Room Main Wire
2 4 X
X 19 X X X X
X X
X
X
15
X
16
X
22X
X
XX
XX
X
4
1
1 2 1 2 2 4
2 4
A A
A A A AA A A A AA A A A A A A A
D
DD
D
BBAAAA A A B B B B
C C C C
A A
A A A A
1 2 1 254X
7 8 1112
1
C14GRAY GRAY GRAY GRAY
J6ORANGE
J14 J17
BLUEJ20 L2 L3 L4
B6 (A) C12 (A) C13 (B)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
F3 F4 F5 F6
J10
J19
X
X1 1
TAILLIGHT
1
3
5
1
X 31
3
5
1
X 3
R8 R9 R10 R11
MEMO
THEFT DETERRENT AND DOOR LOCK CONTROL
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
10ADOME
40AMAIN
2
15AECU–IG
120AALT
2
1
3 1
4 2
1 1
1K1
2 3
1 5
1H2
1H13 1E2 1H5 1E1
TAIL
RE
LAY
A9
1
II214
HE
AD
LP
RE
LAY
C
C
6 1
1
B 6
BODY ECUNO. 2
A
G–R
B–R
W
R–G
R–B
R–G
R–G
B–R
L–O
B–R
G–W
HRLY TRLY MPX1
JUNCTIONCONNECTOR
J14
1F13 1G6
11
GND
2E5
IG
1H6
8
G–W
A1
O
GSWO
B–R
G–W
G–W
L–O
O
L–Y
II IF
JUNCTIONCONNECTOR
J17
JUNCTIONCONNECTOR
J 6
A
A
A
W–B
W–B
W–B
W–B
IE18 IE117
C13COMBINATIONMETER
IJ110
6 7
WW W W ( *1)
WL
16
8 2
L–R
( *1)
W ( *2)
IJ13
D27
F24
D28 (*4)F11 (*3)
ENGINE CONTROLMODULE
LL W
W
5
TILT ANDTELESCOPIC ECU
T 5
A/C CONTROL ASSEMBLYA13
MULTI–DISPLAYM 3
L–Y
E 5 FD , E 7
1H11
9
BECU
A19
MPX2
MPX2 MPX1 MPX– MPX+
MPX2 MPX1 MPX2 MPX1
211
2G6 2F13
IFII
JUNCTIONCONNECTOR
J 6
JUNCTIONCONNECTOR
J10
11
A
A
A
IL36 IL318 IL317
A5 A6 A4
BM
JUNCTIONCONNECTOR
J22
A9A16
IC17
1
2
2
1
BK EB
LUG
GA
GE
CO
MP
AR
TME
NT
DO
OR
KE
Y U
NLO
CK
SW
L 6
EN
GIN
E H
OO
D C
OU
RTE
SY
SW
E 9
IC116IC33
2
M
1543
A10 A2
A A
1WIRELESS DOORLOCK ECU
W 5
LUGGAGECOMPARTMENTDOOR COURTESY SWAND OPENER MOTOR
L 5
JUN
CTI
ON
CO
NN
EC
TOR
J20
W
L–Y
O
L–O
G–W
G–W
7
W W–B
W–B
LG–R P LG R
–W L
LG–B
V–G
LG–R P LG
GR
L
LG–B
V–G
W–B
W–B
W–B
W–B
W–B
L–Y
W–B
RCO RDA RSSI LGCY TR+ TKUL HCTY
B–R
B–R
A3
2G4 2B8 2E1
I 6
10AMPX–B
1
2F11 2E2
A15
15ARADIONO. 2
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1H10
B D
DBB B
BJUNCTIONCONNECTOR
J 7
JUNCTIONCONNECTOR
J15JUNCTIONCONNECTOR
J13
2
1
B
8 1
B 5
BODY ECU NO. 1
A
B–R B–R
B–R B–R
B–R
B–R
G–WG–W
G–W
L–O
G–W
B–RB–R
G–W
G–W
G–W
G–W
B–R
GR
GR
ACC
* 1 : W/ LEXUS NAVIGATION SYSTEM* 2 : W/O LEXUS NAVIGATION SYSTEM
* 3 : 1UZ–FE* 4 : 2JZ–GE
B–R
GSW BECU IG
MPX1 GND
A19
2
3
R–W
DIO
DE
(LU
GG
AG
E C
OM
PA
RTM
EN
TD
OO
R O
PE
N D
ETE
CTI
ON
)
D 8
THEFT DETERRENT AND DOOR LOCK CONTROL
B–R
B–R
G–W
L–O
G–W
G–W
B–R
B–R
A1
10AHORN
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
3
2
5
1
2
2 2
2
II216
A
A
JUNCTIONCONNECTOR
J18
2
1
G–B
B
G
G
G–B
G–B
B–R
B–R
B–R
G–W
G–W
L–O
G–W
B–R
A25 A22
2B9 2H13 2G7
IJ27 IK110 IB19IE25
1
20AP FRDOOR
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
2F2
2 5
B
B
10
2
5
4
THEFTDETERRENTHORN
T 1
SECURITYINDICATOR[RHEOSTAT]
R 7
JUNCTIONCONNECTOR
J14
HAZARD SWH18
V
W–G
VV
W–G
R–Y
R–Y
P–B L–B
R–Y
L–B
R–Y
L–O
R–Y
R–Y
HAZ
HORN
IND MPX2
B 5
BODY ECU NO. 1
A
HORN RELAY
BSUBPWSSH
FR
OM
EN
GIN
E C
ON
TRO
LM
OD
ULE
2H11
9
V
B
W–B
TO COMBINATION METER
B1
L–O
LP
B–R
B–R
B–R
G–W
G–W
L–O
G–W
B–R
R–Y
L–B
R–Y
L–O
I 6
C3C9 C2
IB1
6
IB1
1
IB1
13
G–W
G–W
L–O
G–W
B–RL–
O
G–W B–R
IB1
7
IB15
20AD FRDOOR
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1F2
A1 C18
D22
DRIVER DOOR ECU
BA , D23 C, D24
MPX1 CPUB SIG BDR
L–B O
L–B
B–R
B–R
G–W
G–W
O
G–W
B–R
A6 A7 A13
5 17 16 1
15DOOR LOCK CONTROLSW LH [POWER WINDOWMASTER SW]
P11DOOR LOCK MOTOR, DOOR KEY LOCKAND UNLOCK SW AND DOOR LOCKDETECTION SW FRONT LH
D18
A17
2
A8
3
A15
4
A3
5
A4
6
A5
L–B
R–Y
L–O
LG–B
LG–R
W–B
G–B
G–R
BR
–B
GR
P–B
P–G
ML MUL PWE A– A+ LSWE LSW KL KUL
IF
A
A
A
JUNCTIONCONNECTOR
J10
JUNCTIONCONNECTOR
J 6
1
2
B15 C12B14
DOORCOURTESY SWFRONT LH
D13
CTY CTYE GND
R–G
W–B
W–B
W–B
W–B
IB14
W–B
MPX2
EULL
LOC
K
UN
LOC
K
PWS
M
UN
LOC
K
LOC
K
LOC
KD
ETE
CTI
ON
THEFT DETERRENT AND DOOR LOCK CONTROL
B–R
B–R
G–W
G–W
O
G–W
B–R
L–O
R–Y
L–B
IK113
IK11
IC3
15
IK1
6
A9A2A3
B–R
O
G–W
O
G–W
B–R
O
B–R
G–W
OG
–W B–R O
CPUB SIG MPX1
F11
FRONT PASSENGER DOOR ECU
BA , F12 C, F13
C1 C6 C7 A18
IK15 IK17
C16
4
3 1 2
L–B
L–B
LG–B
LG–R
W–B
L–O
L–O
BDR ML MUL DLE MPX2
A12
IK14
II
A
A
DOOR LOCK CONTROLSW RH
D17
W–B
W–B
W–B
GND
C5 C4 C3
1 2 3
P–G
P–B G
KUL KL LSW
DOOR LOCK MOTOR, DOOR KEY LOCKAND UNLOCK SW AND DOOR LOCKDETECTION SW FRONT RH
D19
C15 C17 C8
4 5 6
BR
–B
G–B
G–R
LSWE A– A+
12
B15 B14
DOOR COURTESY SWFRONT RH
D14
CTY CTYE
R–G
W–B
A
JUNCTIONCONNECTOR
J 8
A
JUN
CTI
ON
CO
NN
EC
TO
R
J17
L UL E
B
LOC
K
UN
LOC
K
M
UN
LOC
K
LOC
K
LOC
KD
ETE
CT
ION
B–R
O
G–W
O
G–W
B–R
BA1
6
BA18
BA1
11
20AD RRDOOR
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1E6
BA12
B–R
G–W
O
O
G–W
B–R
L–R
L–R
B–R
G–WO
5 15 9 14
L–R
MPX1 CPUB SIG BDR
L–O
* 5 : W/ DRIVING POSITION MEMORY* 6 : W/O DRIVING POSITION MEMORY
1 2 3 4
1 13 17 19
DOOR LOCK MOTOR ANDDOOR LOCK DETECTIONSW REAR LH
D20
A– A+ LSW LSWE
G–B
G–R G
BR
–B
1
2
BC110BC13
BA13
IL315
IC22
10 11
L–O
L–O
L–O
L–O
L–Y
OL–O
(*6)
( *5)
( *5)
( *5)
( *5)
4
BJ
POWER SEAT ECUP19
DOORCOURTESY SWREAR LH
D15
BA19
8 18 25
REAR DOOR LH ECUR12
R–W
W–B
W–B
W–B
W–B
CTY CTYE GND MPX2
MPX1 MPX2
M
LOC
KD
ET
EC
TIO
N
THEFT DETERRENT AND DOOR LOCK CONTROL
GNDCTYE
9 BB1
W–B
W–B
CTY
W–B
R–Y
W–B
REAR DOOR RH ECU
25188
R13
DOORCOURTESY SWREAR RH
O
G–W
B–R
20AP RRDOOR
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
2E6
BB12
L–R
L–R
14
L–R
MPX1 SIG BDR
1 2 3 4
19 17 1 13
DOOR LOCK MOTOR ANDDOOR LOCK DETECTIONSW REAR RH
D21
A– A+LSWLSWE
BR
–B G
G–B
G–R
1
2
BL
D16
BB1
3
BB1
6
BB111
IL1
16
5 9 15
O OB
–R
G–W O
L–OBB1
8 L–O
B–R
G–W
4
SEL1
10 BB1
W–B
W–B
20
BM
A
JUNCTIONCONNECTOR
J22
CPUB MPX2
M
LOC
KD
ET
EC
TIO
N
1. MANUAL UNLOCK OPERATIONWhen the door lock control SW on the driver or front passenger seat is pressed to the unlock position, the signal is input toTERMINAL MUL of the driver door ECU or front passenger door ECU. Through communication control of the body ECU anddoor ECU etc. , the current flows from TERMINAL A– of the door ECU into the door lock motor to TERMINAL A+ of the doorECU to GROUND, to unlock the door.
2. MANUAL LOCK OPERATIONWhen the door lock control SW on the driver or front passenger seat is pressed to LOCK, signal is input to TERMINAL ML ofthe driver door ECU or front passenger door ECU. Through communication control of the body ECU and door ECU etc. ,current flows from TERMINAL A+ of the door ECU to door lock motor to TERMINAL A– of the door ECU to GROUND, to lockthe door.
3. DOOR KEY UNLOCK OPERATIONUnlock operation from driver doorWhen the door is unlocked once by the ignition key from the driver side, the signal from the door key lock and unlock SW inthe door lock motor front LH is input to TERMINAL KUL of the driver door ECU. This signal activates the driver door ECU toflow the current from TERMINAL A+ of the driver door ECU into the door lock motor front LH to TERMINAL A+ of the driverdoor ECU to GROUND, to unlock only the driver door. Accordingly, if the second unlock operation is made within 3 sec. afterthe above unlock operation, all the doors are unlocked through communication control of the body ECU and door ECU etc.Unlock operation from passenger doorWhen the door is unlocked by the ignition key from the front passenger side, the signal from the door key lock and unlockSW in the door lock motor front RH is input to TERMINAL KUL of the front passenger door ECU. Through communicationcontrol of the body ECU and door ECU etc. , the current flows from TERMINAL A– of the door ECU into the door lock motorfront RH to TERMINAL A+ of the door ECU to GROUND, to unlock all the doors at once.
4. IGNITION KEY REMINDER OPERATIONWhen the door lock operation is made using the door knob with the ignition key remained inserted in the key cylinder and thedoor open, unlock operation is automatically made. Additionally, if lock operation is made with the door lock control SW ordoor key lock and unlock SW, unlock operation is automatically made after the lock operation has been completed.
SYSTEM OUTLINE
THEFT DETERRENT AND DOOR LOCK CONTROL
L6 LUGGAGE COMPARTMENT DOOR KEY UNLOCK SW1–2 : Closed with door lock cylinder unlocked with key
E9 ENGINE HOOD COURTESY SW1–2 : Opened with engine hood open
L5 LUGGAGE COMPARTMENT DOOR COURTESY SW AND OPENER MOTOR2–GROUND : Closed with luggage compartment door open
D13, D14, D15, D16 DOOR COURTESY SW FRONT LH, RH, REAR LH, RH1–2 : Closed with door open
P11 DOOR LOCK CONTROL SW LH [POWER WINDOW MASTER SW]5–16 : Closed with LOCK position
17–16 : Closed with UNLOCK position
D17 DOOR LOCK CONTROL SW RH3–2 : Closed with LOCK position1–2 : Closed with UNLOCK position
D18 DOOR LOCK MOTOR, DOOR KEY LOCK AND UNLOCK SW AND DOOR LOCK DETECTION SW FRONT LH2–GROUND : Approx. 12 volts with door lock motor at lock operate1–GROUND : Approx. 12 volts with door lock motor at unlock operate
5–3 : Closed with door lock cylinder locked with key6–3 : Closed with door lock cylinder unlocked with key
D19 DOOR LOCK MOTOR, DOOR KEY LOCK AND UNLOCK SW AND DOOR LOCK DETECTION SW FRONT RH6–GROUND : Approx. 12 volts with door lock motor at lock operate5–GROUND : Approx. 12 volts with door lock motor at unlock operate
2–4 : Closed with door lock cylinder locked with key1–4 : Closed with door lock cylinder unlocked with key
D20 DOOR LOCK MOTOR AND DOOR LOCK DETECTION SW REAR LH2–GROUND : Approx. 12 volts with door lock motor at lock operate1–GROUND : Approx. 12 volts with door lock motor at unlock operate
D21 DOOR LOCK MOTOR AND DOOR LOCK DETECTION SW REAR RH4–GROUND : Approx. 12 volts with door lock motor at lock operate3–GROUND : Approx. 12 volts with door lock motor at unlock operate
: PARTS LOCATION
Code See Page Code See Page Code See Page
A13 40 D24 C 42 J17 41
B5 A 40 E5 D 38 (2JZ–GE) J18 41
B6 A 40 E7 F 36 (1UZ–FE) J20 42
C13 40E9
36 (1UZ–FE) J22 42
D8 42E9
38 (2JZ–GE) L5 43
D13 42 F11 A 42 L6 43
D14 42 F12 B 42 M3 41
D15 42 F13 C 42 P11 43
D16 42 H18 40 P19 44
D17 42 J6 41 R7 41
D18 42 J7 41 R12 43
D19 42 J8 41 R13 43
D20 42 J10 41T1
37 (1UZ–FE)
D21 42 J13 41T1
39 (2JZ–GE)
D22 A 42 J14 41 T5 41
D23 B 42 J15 41 W5 43
SERVICE HINTS
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
2 23 Engine Room No.2 R/B (Engine Compartment Left)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1E 26 Floor No.2 Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
1K 26 Engine Room Main Wire and Driver Side J/B (Left Kick Panel)
2B 28 Engine Room Main Wire and Passenger Side J/B (Right Kick Panel)
2E 28 Floor No.1 Wire and Passenger Side J/B (Right Kick Panel)
2F 28
2G29
Cowl Wire and Passenger Side J/B (Right Kick Panel)
2H29
g ( g )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IB1 50 Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC1
IC2 50 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
IC3
( )
IE150 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IE250 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
II2 52 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
IJ152 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IJ252 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IK1 52 Front Door RH Wire and Cowl Wire (Right Kick Panel)
IL152 Floor No 1 Wire and Cowl Wire (Right Kick Panel)
IL352 Floor No.1 Wire and Cowl Wire (Right Kick Panel)
BA1 54 Rear Door LH Wire and Floor No.2 Wire (Under the Center Pillar LH)
BB1 54 Rear Door RH Wire and Floor No.1 Wire (Under the Center Pillar RH)
BC1 56 Floor No.2 Wire and Front Seat LH Wire (Under the Driver’s Seat)
: GROUND POINTS
Code See Page Ground Points Location
EB46 (1UZ–FE)
Left FenderEB48 (2JZ–GE)
Left Fender
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
BJ 54 Rear Floor Partition Panel LH
BK 54 Quarter Panel LH
BL 54 Rear Floor Partition Panel RH
BM 54 Quarter Panel RH
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I6 52 Cowl Wire
THEFT DETERRENT AND DOOR LOCK CONTROL
1 9 X
X 19 X X X X
5 X X
X
X 16
21 3 4 5 6 X 9 10 X
X 15 16 19 22 25
2 3
1 2 3 4 1 2 3 4 5 6 1 2 3 4 5 6
1 2 3 4 1 2 3 41 4 5
13 X
3
86
1715
7
14 15
A13 B5 (A) B6 (A)
C13GRAY GRAY GRAY
GRAYD17
BLACK BLACK
BLACK BLACK GRAY GRAY
GRAY
2 3 X X 9
X 12 X 18X X X X
X X X X
X X X 28
X
27
X X X X X X 11 X X
24
1 2
GRAY (2JZ–GE) (1UZ–FE) BLACK
D8 D13 D14 D15
D16 D18 D19
D20 D21 D22 (A) D23 (B)
D24 (C) E5 (D) E7 (F) E9
1 2 1 2 1 2
1 2
2 X
X1 1
2 3 X X X 9
X 12 X X X 18X X X X
X X X 14 15
1 4 5
X
3
86
1715
7
16
X
X
X
X X 10
A A
A A A A B B B B B B B
A A A A
A A A A AA A A A A A A A
D
DD
D
B
B B B B
AAAA A A
C
CC
CC
BB
B
A
A A
A A
A A A A
GRAY GRAY
BLACKJ6
GRAY BLACK
ORANGEJ13 J14
J15 J17 J20
GRAY
BLUE
2 X
X 8 X X X X X
1 2A A
A A A A 1 2
BLUEJ22
BLACKL6
X 5
X
X 15 16 17 X X
X X
1011 X X X 2 5 X X
P11 P19 R7
(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
F11 (A) F12 (B) F13 (C)
H18 J7 J8
J10
J18
L5 M3
THEFT DETERRENT AND DOOR LOCK CONTROL
1
1 X 4 5 X 8 9 13
14 15 171819 X 25
1 X 4 5 X 8 9 13
14 15 171819 0 25
1 X 3 4 5 X 7
6 7 X
2
R12 R13BLACK GRAY
W5
T1 T5
MEMO
TURN SIGNAL AND HAZARD WARNING LIGHT
10AGAUGE
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1H4
10ATURN–HAZ
1
B
B
II46 IJ220
LH
RHTURN
OFF
ONHAZARD
IJ27
2H1
1H1
2B11
1G5 1B11 1D10
IC210 IC24 IE24
3C5
3G5
1C6
1F13
2F13
2G6
3
1
3
1
5
6
5
6 2 3
BKEA EB IIIF
A A
A
A
FRO
NT
TUR
N S
IGN
AL
LIG
HT
RH
F 6
RHLH
RE
AR
TU
RN
SIG
NA
L LI
GH
T R
H[R
EA
R C
OM
B.
LIG
HT
RH
]
R10
RE
AR
TU
RN
SIG
NA
L LI
GH
T LH
[RE
AR
CO
MB
. L
IGH
T L
H]
R 8
FRO
NT
TUR
N S
IGN
AL
LIG
HT
LH
F 5
TUR
N S
IGN
AL
IND
ICA
TO
R L
IGH
T[C
OM
B.
ME
TER
]
C12
2
1
1 4 8 5 6
1 3 2
2 3 7
JUNCTIONCONNECTOR
J17
JUNCTIONCONNECTOR
J20
JUNCTIONCONNECTOR
J12
JUN
CT
ION
CO
NN
EC
TOR
J17
JUN
CTI
ON
CO
NN
EC
TOR
J10
JUNCTIONCONNECTOR
J 6A
7 10
C C A A
25
AACC
TURN SIGNAL FLASHERT 7
R–L W
R–L
W
R–W
R–W
W–G
W–G
W–B
G–RG
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
G–Y
G–Y
G–B
G–B
G–B
G–Y
G–Y
G–B
G–Y
G–Y
G–Y
G–B
R–W
W–B
G–Y
BO
DY
EC
UN
O. 1
B 5
8HAZARD SWH18
TURN SIGNAL SW[COMB. SW]
C14
B 4
HAZ
IG +B EHW EL ER
LR LL GND
1G6
1D5
22
A
W–B
W–B
BR
I 5 E 4
BR
T7 TURN SIGNAL FLASHER4–GROUND : Always approx. 12 volts1–GROUND : Approx. 12 volts with ignition SW at ON or ST position7–GROUND : Always continuity
: PARTS LOCATION
Code See Page Code See Page Code See Page
B 5 40 F6 38 (2JZ–GE) J20 42
C12 40 H18 40 R8 43
C14 40 J6 41 R10 43
F536 (1UZ–FE) J10 41 T7 41
F538 (2JZ–GE) J12 41
F6 36 (1UZ–FE) J17 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1B 26 Cowl Wire and Driver Side J/B (Left Kick Panel)
1C26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1D26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
2B 28 Engine Room Main Wire and Passenger Side J/B (Right Kick Panel)
2F 28
2G29
Cowl Wire and Passenger Side J/B (Right Kick Panel)
2H29
g ( g )
3C 30Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Reinforcement Center)
3G 31Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Reinforcement Center)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IC2 50 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
IE2 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
II4 52 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
IJ2 52 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
: GROUND POINTS
Code See Page Ground Points Location
EA46 (1UZ–FE)
Right FenderEA48 (2JZ–GE)
Right Fender
EB46 (1UZ–FE)
Left FenderEB48 (2JZ–GE)
Left Fender
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
BK 54 Quarter Panel LH
SERVICE HINTS
TURN SIGNAL AND HAZARD WARNING LIGHT
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I5 52 Engine Room Main Wire B4 54 Floor No.2 Wire
1
3
X
X
X
X 7 8 X 10
56
1 2 34 5 6 7 8
X X
X 25
X
22X
X
XX
XX
X
3
2
1 2 X X
X
3
X
X
A A A A AA A A A A A A A
BBAAAA A A B B B B A A
A A A A
1
3
A A
A A A A
CC
C C
56
B5 C12 C14
GRAY GRAY BLACKJ6
ORANGE
GRAYJ17 J20 R8 R10
BLACK
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7) (Hint : See Page 7)(Hint : See Page 7)
F5 F6 H18 J10
J12
T7
MEMO
VSC
40AABSNO. 2
1
60AABSNO. 1
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1
2
2
2
2 4
1 3
2 4
1 3
3 6
2
1 4
2 2
2 22
22222
2222
D3 A1
IA2
5
IA1
2
IA2
2
B–R
IA2
11
IA2
14
IA1
3
A19 D2 A29 A27
IA24
B7B3C2
EE
A
AA
JUN
CTI
ON
CO
NN
EC
TOR
J 5
ABS & TRAC & VSC ECU
BA
AB
S &
TR
AC
& V
SC
AC
TUA
TOR
W–B
W–B
R–B
OR–B
W–B
V–RL
G–OR O V–R
G–O
R–B
R–BLR
W–B
C D
5
AB
S M
OTO
R R
ELA
Y
TRA
C M
OTO
R R
ELA
Y
AB
S S
OL
RE
LAY
R
R–B
LG–B
LG–R
LG–B
LG–B
LG–R
LG–B
GR
GR
R–B
2
1
2
1
SR MR2 MR1 MTT
R2+ R1+
A19 , A20 , A21 , A22
BA
5A
, A
6
A 7
C
B18 1 B 2 B 9 B
3 1 5
10 B
2
(SH
IELD
ED
)
B W R G
ABS DECELERATIONSENSOR
A23
GGNDGL2GL1VGSGSS
GR
A
AA
VGS GL1 GL2 GGND
,
W–B
BB6 C5
EA
A8
A21
BR
W–B
7 A
A7
10 A
D16
9 A
D8
4 A
D7
3 A
D1
2 A
A8
1 A
A9
12 A
A2
11 A
A3
5 A
A4
6 A
A5
B1
D6
IA213
C3
A11
IA14
B4
D9
IA21
C4C1
R–B
GR
–B
R–WR–L
R–G
Y–GYL–Y
L–B
W–G
W–L
G–B
W–R
Y–R
B–W
GR
–LG
R–L
B–WY–R
W–B
EE
ABS & TRAC & VSC ACTUATOR
BA C
7
C25
C
C
W–G
W
DATA LINKCONNECTOR 3
D 4
JUNCTIONCONNECTOR
J 9
ABS & TRAC & VSC ECU
BA C D
D/G
SFLH SFLR SFRH SFRR SRLH SRLR SRRH SRRR SA1 SA2 SA3 STR AST PH PL
A19 , A20 , A21 , A22
A 5 , A 6 , A 7
B7 16 B 24 B 22 B 14 B
G–R V P L LG
ENGINE CONTROL MODULE
E 6 E
ENG+ENG–TRC+TRC–NEO
E22 E20E15 E20
E13E13
E21E21
E14 (1UZ–FE)
E14 (2JZ–GE)
C1719 C 28 C 27 C
4 1 3
9 C
5
(SH
IELD
ED
)
GR
–L R W B
YAW RATE SENSORY 1
VYSGYAWYAWYD YSS
H 1HEADLIGHTBEAM LEVELCONTROL ECU
FLO
C
L–Y
3
GRGR
YD YAW2 GYAW VYS
2
SILNEO TRC– TRC+ ENG– ENG+
B5
A28
IA212
B8
A18
IA23
GR
–R
GR
–G
GR
–R
GR
–G
MT+ MT–
M
W–B
W–B
2
SPDL
VSC
A24A23 22 A 10 A
1 2 3W R B
MASTER CYLINDERPRESSURE SENSOR
M 2
B19
2
1
B20
IC16 IC115
B11
2
1
B12
IL34 IL312
AB
S S
PE
ED
SE
NS
OR
RE
AR
LH
A31
AB
S S
PE
ED
SE
NS
OR
RE
AR
RH
A32
BR
L–W O
BR
BR
–W
L–W O
ABS & TRAC & VSC ECU
5AIGN
1G7
15ASTOP
1H8
1
2
C7C1
E
A
JUNCTIONCONNECTOR
J14
STOPLIGHT SW
S11
JUNCTIONCONNECTOR
J 7
E
A
W
B–O
B–O
G–W
G–W
A6 A31 B8 B17 C26
1
2
II
A
A
VS
C O
FF S
WV
6
JUNCTIONCONNECTOR
J17
Y
W–B
W–B
W–B
W–B
W–B
W–B
RL+ RL– RR+ RR–
BR
–W
GND2 GND1
(SH
IELD
ED
)
GND3 GND4 CSW
IG2 STP E2 PMC VCM FSS
A16 A15 A14 A13
II28 II217
1
2
1
2
P L
G–W BR
G–W BR
FL+ FL– FR+ FR–
AB
S S
PE
ED
SE
NS
OR
FRO
NT
RH
AB
S S
PE
ED
SE
NS
OR
FRO
NT
LH
A 8
A 9
B5 C16 C6
IE12 IE114 IE15
R–G V
V–R
O L L
BRL SP1 IND
G
L
O
W–B
W–B
W–B
A
A
A
W–B
WT
LG–R
IE1
13 C
4
L
G
GR GR
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
BA19 A , A20 C, A21 D, A22
E2 PMC VCM
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
15AECU–IG
1H5
B6
BU
ZZE
R
B
1
B
2
B B
B–R
B–R
B–R
JUNCTIONCONNECTOR
J 7
VS
C W
AR
NIN
G B
UZ
ZER
V 7
C20C8C18 C15 C24
AD AA
BF BC
IF
2 1
A
36
A
A
B
ABS & TRAC & VSC ECU B
JUNCTION CONNECTORJ 6
JUNCTIONCONNECTOR
J10
STEERINGSENSOR[COMB. SW]
C15
JUN
CTI
ON
CO
NN
EC
TO
R
JUN
CTI
ON
CO
NN
EC
TO
R
J15
B–R
LLG R–WR–B
R PSS1– SS1+ BZ
IG1
B–W
D 1DATA LINK CONNECTOR 1
(SHORT PIN)
11 EA1 12 EA1 EA110EA15
B3
D
A
P–B
D
LG–B
A
23 11 2216
B–W
LG–BPGR
TS
C5B4
TC
LG–B
B–W
P–BGR
WA
JUN
CTI
ON
CO
NN
EC
TOR
J 9
JUN
CT
ION
CO
NN
EC
TO
RJ1
4
VSCW
L–O
IE1
4 C
6
GR
IE1
3
A
R
W–B
B–R
W–R
W–R
LG–B
W–B
W–B
W–B
O
L
L
G
W–B
W–B
W–B
O
L
L
G
R
P
R–B
R–W
W–B
R–B
R–W
B–R
P
AA
A
R–B
R–W
W–B
BA19 A , A20 C, A21 D, A22
BJ
3A
, J
4
W–B
WB TC TS WA
ESS IG1
SS1– SS1+
VSC
10AGAUGE
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1D41H4
A1
B8A22B17B5B14B15B13B16
EA22 EA16
IE111
1D5
1F13 1G6
4
7 8
B B R–L
R–W
R–B
P
R
G
L
L
O
W–B
W–B
W–B
R–L
R–W R
R–L
W–B OOLLGRP
W–B
W–B
W–B
EA3
9 R–LR–L
CPU
SPEEDOMETER
BR
AK
E
SLI
P
VS
C O
FF
AB
SC12
COMBINATION METER
BA , C13
JUNCTIONCONNECTOR
PA
RK
/NE
UTR
AL
PO
SIT
ION
SW
P 1
J17
CB
BC
(2JZ–GE)(1UZ–FE)
(1UZ–FE)(2JZ–GE)
JUNCTIONCONNECTOR
J 1
B11
IE18
W
A19
1B8
1
2
4
Y–B
W–B
W
BLVL
W
MPX2
BR
AK
E F
LUID
LE
VE
LW
AR
NIN
G S
W
B 1
B 6
BO
DY
EC
U N
O. 2
A
EB : W/O DAYTIME RUNNING LIGHTIG : W/ DAYTIME RUNNING LIGHT
VS
C
1. ABS OPERATIONIf the brake pedal is depressed suddenly, the ABS controls the hydraulic pressure of the wheel cylinders for all the fourwheels to automatically avoid wheel locking and ensure the directional and steering stability of the vehicle. If the brake pedalis depressed suddenly, the ABS & TRAC & VSC ECU controls the solenoids in the actuators using the signals from thesensors to move the brake fluid to the reservoir in order to release the braking pressure applied to the wheel cylinder. If theABS & TRAC & VSC ECU detects that the fluid pressure in the wheel cylinder is insufficient, the ECU controls the solenoidsin the actuators to increase the braking pressure.
2. TRACTION CONTROL OPERATIONThe traction control system controls the engine torque, the hydraulic pressure of the driving wheel cylinders, slipping of thewheels which may occur at start or acceleration of the vehicle, to ensure an optimal driving power and vehicle stabilitycorresponding to the road conditions.
3. VSC OPERATIONUnexpected road conditions, vehicle speed, emergency situation, and any other external factors may cause large under– orover–steering of the vehicle. If this occurs, the VSC system automatically controls the engine power and wheel brakes toreduce the under– or over–steering.To reduce large over–steering :If the VSC system determines that the over–steering is large, it activates the brakes for the outer turning wheels dependingon the degree of the over–steering to produce the moment toward the outside of the vehicle and reduce the over–steering.To reduce large under–steering :If the VSC system determines that the under–steering is large, it controls the engine power and activates the rear wheelbrakes to reduce the under–steering.VSC OFF SWThe VSC OFF SW is used to stop the VSC function. After the engine is started, the VSC system is stopped (turned off) andthe VSC OFF indicator light lights up. When the VSC OFF SW is pressed again, the VSC system enters the stand–by mode.If the engine is stopped and restarted, the VSC system enters the stand–by mode regardless of the VSC OFF SW.VSC indicator lightIf an error occurs in the VSC system, the VSC indicator lights up to warn the driver.
4. MUTUAL SYSTEM CONTROLTo efficiently operate the VSC system at its optimal level, the VSC system and other control systems are mutually controlledwhile the VSC system is being operated.Engine throttle controlThe engine power does not interfere with the VSC brake control by controlling the opening of the throttle and reducing theengine output.Engine control and electronically controlled transmission controlThe strong braking force does not interfere with the braking force control of the VSC system by turning off the accel. andreducing changes in the driving torque at shift–down.VSC system operation indicationThe slip indicator light flashes and the buzzer sounds intermittently to warn the driver that the current road is slippery, whilethe VSC system is being operated.
5. FAIL SAFE FUNCTIONIf an error occurs in the ABS & TRAC & VSC ECU, sensor signals, and/or actuators, the ABS & TRAC & VSC ECU inhibitsthe brake actuator control and inputs the error signal to the engine control module. According to the error signal, the brakeactuator turns off the solenoid and the engine control module rejects any electronically controlled throttle open request fromthe VSC system. As a result, the vehicle functions without the ABS, TRAC, and VSC systems.
SYSTEM OUTLINE
VSC
A19 (A), A20 (B), A21 (C) ABS & TRAC & VSC ECU(C) 1–GROUND : Approx. 12 volts with ignition SW at ON or ST position(B) 6–GROUND : Approx. 12 volts with ignition SW at ON or ST position(C) 7–GROUND : Approx. 12 volts with stop light SW on(A) 6, (A) 31, (B) 8, (B) 17–GROUND : Always continuity
A8, A9 ABS SPEED SENSOR FRONT LH, RH1–2 : Approx. 1.60 kΩ (20°C, 68°F)
A31, A32 ABS SPEED SENSOR REAR LH, RH1–2 : Approx. 1.10 kΩ (20°C, 68°F)
: PARTS LOCATION
Code See Page Code See Page Code See Page
A5 A36 (1UZ–FE) B1 38 (2JZ–GE)
J537 (1UZ–FE)
A5 A38 (2JZ–GE) B6 A 40
J539 (2JZ–GE)
A6 B36 (1UZ–FE) C12 A 40 J6 41
A6 B38 (2JZ–GE) C13 B 40 J7 41
A7 C36 (1UZ–FE) C15 40 J9 41
A7 C38 (2JZ–GE)
D136 (1UZ–FE) J10 41
A836 (1UZ–FE)
D138 (2JZ–GE) J14 41
A838 (2JZ–GE) D4 40 J15 41
A936 (1UZ–FE)
E6 E36 (1UZ–FE) J17 41
A938 (2JZ–GE)
E6 E38 (2JZ–GE)
M237 (1UZ–FE)
A19 A 40H1
36 (1UZ–FE)M2
39 (2JZ–GE)
A20 B 40H1
38 (2JZ–GE)P1
37 (1UZ–FE)
A21 C 40J1
37 (1UZ–FE)P1
39 (2JZ–GE)
A22 D 40J1
39 (2JZ–GE) S11 41
A23 40J3 A
37 (1UZ–FE) V6 41
A31 42J3 A
39 (2JZ–GE) V7 41
A32 42J4 B
37 (1UZ–FE) Y1 41
B1 36 (1UZ–FE)J4 B
39 (2JZ–GE)
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
2 23 Engine Room No.2 R/B (Engine Compartment Left)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1B 26 Cowl Wire and Driver Side J/B (Left Kick Panel)
1D 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
SERVICE HINTS
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA146 (1UZ–FE)
EA148 (2JZ–GE)
EA246 (1UZ–FE)
Engine Wire and Cowl Wire (Inside of the ECU Box)EA248 (2JZ–GE)
Engine Wire and Cowl Wire (Inside of the ECU Box)
EA346 (1UZ–FE)
EA348 (2JZ–GE)
IA150 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
IA250 Engine Room Main Wire and Cowl Wire (Near the Driver Side J/B)
IC1 50 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
II2 52 Engine Room Main Wire and Cowl Wire (Near the Passenger Side R/B)
IL3 52 Floor No.1 Wire and Cowl Wire (Right Kick Panel)
: GROUND POINTS
Code See Page Ground Points Location
EA46 (1UZ–FE)
Right FenderEA48 (2JZ–GE)
Right Fender
EB46 (1UZ–FE)
Left FenderEB48 (2JZ–GE)
Left Fender
EE46 (1UZ–FE)
Under the ABS & TRAC & VSC ActuatorEE48 (2JZ–GE)
Under the ABS & TRAC & VSC Actuator
IF 50 Left Kick Panel
IG 50 Left Side of the Cowl Panel
II 50 Right Side of the Cowl Panel
1 2
3 4 5
2
5
86
31
4
7
1 2 3 4 5 67 8 9 11 1210
12
21X16151410
3127X22
1311
X23
18
28
19
29
X
X
X
24
1 2 3 4 5 6 7 8 9
12
1
1614X12118
24222017
2
109
1918 X
X
X
3 4 5 6 7 1 3 4 5 6 9
X X 13 X 15 19
20 X 24 28
7
16 17
25 26X
X
X
X
8
18
27
BLACK BLACK BLACK
A19 (A) A20 (B) A21 (C)
GRAY GRAYA5 (A) A6 (B) A7 (C) A8 A9
VSC
1 2 X 53 12 2 1
X
22X
X
XX
XX
X
1
1 2 3 X X 7
8 9 X X X X
16 X X X
6
X X
X XX
1 2
X
X 19 X X X X
A22 (D)BLACK
A31 A32
C12 (A) C13 (B)
GRAY
B6 (A)
X X X X X X X
X 7 X X X X
1 2 3 X
6 X X X
X X X X
X X X X 11
X X X 16 X X
X
X
2322
X
D4
C15(1UZ–FE) BLACK
A23 B1
D1
X X X
X X X X 11
X X X 16 X X
X
X
2322
D1(2JZ–GE) BLACK
X
X X
X X 22
3 14
20 21X
2
1
CCXXXX X X X X C C
X X
X 5
X X
13 14
20 21X
1
(1UZ–FE) (2JZ–GE)
GRAY (1UZ–FE) GRAY
(Hint : See Page 7)
E6 (E) E6 (E)
H1 J1
BBXXX B
A A
D D
(2JZ–GE) BLACKJ3 (A)
(Hint : See Page 7)
(Hint : See Page 7)
J1
5
161514 13
8 X
17 X11
C C
F F
AAAAAA A A A A A A A A A B B
A A A B B B B B
A A
A A A A
C
CC
CC
D
DD
D
J4 (B)BLUE GRAY
J6
(1UZ–FE)
C
CC
CC
XX
D
X
DD
D
A A A A AA A A A A A A A
EE
EE
EE
E
A
A A
(2JZ–GE)
J14
ORANGE
1
2
1 2 543X1X7
48
1 2
1 2 3 B
B B B B
BBAAAA A A B B B B
GRAY BLUE BLACKV6
BLACK
J15 J17BLACK
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
J5 J7
J9 J9 J10
M2
P1 S11 V7 Y1
MEMO
WIPER AND WASHER
20AWASHER
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1F3
A A
1
2
ID1
5
10AGAUGE
1D4
25AWIPER
1B11F5
EB
A
IF
J 6JUNCTIONCONNECTOR
IG
A
A
A1
B10
IE19
JUN
CTI
ON
CO
NN
EC
TOR
J10
FRONT WIPER MOTORF 7
ID14ID11ID12
1
3 5 2 1
4
2
11
2
16
7
8
17
A
FRONT WIPER AND WASHER SW[COMB. SW]
C17
WA
SH
ER
LE
VE
L W
AR
NIN
G S
WW
1W
AS
HE
R L
EV
EL
WA
RN
ING
LIG
HT
[CO
MB
. M
ET
ER
]
JUNCTIONCONNECTOR
J12
L–O L–O
L–Y
W–B
L–W
L–B
L–R
L
W–B W–B
W–B
R–LLL
L–B L
L–W
L–W
L–B
L–RW–B
W–B
W–B
W–B
W–B
W–B
GR
–BY
L–Y
L–R
(*2)
( *1)
( *2)
* 1 : W/O DAYTIME RUNNING LIGHT* 2 : W/ DAYTIME RUNNING LIGHT
BC
12A
, C
13
WA
SH
ER
OF
F
MIS
T
INT
MIS
T
MIS
T
MIS
T
LO HI
M
WA
SH
ER
MO
TO
RW
2
WIPER RELAY
M
With the ignition SW turned on, the current flows to TERMINAL 17 of the front wiper and washer SW, and TERMINAL 2 ofthe front wiper motor through the WIPER fuse, TERMINAL 2 of washer motor through the WASHER fuse.
1. LOW SPEED POSITIONWith wiper SW turned to LO position, the current flows from TERMINAL 17 of the front wiper and washer SW to TERMINAL7 to TERMINAL 5 of the front wiper motor to TERMINAL 4 to GROUND and causes the front wiper motor to run at lowspeed.
2. HIGH SPEED POSITIONWith wiper SW turned to HI position, the current flows from TERMINAL 17 of the front wiper and washer SW to TERMINAL 8to TERMINAL 3 of the front wiper motor to TERMINAL 4 to GROUND and causes the front wiper motor to run at high speed.
3. INT POSITIONWith wiper SW turned to INT position, the relay operates and the current which is connected by relay function flows fromTERMINAL 17 of the front wiper and washer SW to TERMINAL 2 to GROUND. This flow of current operates the intermittentcircuit and the current flows from TERMINAL 17 of the front wiper and washer SW to TERMINAL 7 to TERMINAL 5 of thefront wiper motor to TERMINAL 4 to GROUND and operates the wiper.The intermittent operation is controlled by the charge/discharge function of the condenser installed in the relay, and theintermittent time is controlled by a time control SW to change the charging time of the condenser.
4. MIST POSITIONWith wiper SW turn MIST position, the current flows from TERMINAL 17 of the front wiper and washer SW to TERMINAL 7 toTERMINAL 5 of the wiper motor to TERMINAL 4 to GROUND and causes the wiper motor to run at low speed.
5. WASHER CONTINUOUS OPERATIONWith washer SW turned to on, the current flows from TERMINAL 2 of the washer motor to TERMINAL 1 to TERMINAL 11 ofthe front wiper and washer SW to TERMINAL 2 to GROUND and causes to the washer motor to run, and the window washeremits a water spray. This causes the current to flow to washer continuous operation circuit in TERMINAL 17 of the frontwiper and washer SW to TERMINAL 7 to TERMINAL 5 of the front wiper motor to TERMINAL 4 to GROUND and operatesthe wiper.
C17 FRONT WIPER AND WASHER SW [COMB. SW]2–GROUND : Always continuity
17–GROUND : Approx. 12 volts with the ignition SW at ON or ST position7–GROUND : Approx. 12 volts with the front wiper and washer SW at LO position
Approx. 12 volts 2 to 12 seconds intermittently with the front wiper and washer SW at INT position16–GROUND : Approx. 12 volts with the ignition SW on unless the front wiper motor at STOP position
8–GROUND : Approx. 12 volts with the front wiper and washer SW at HI position
F7 FRONT WIPER MOTOR2–1 : Closed unless the wiper motor at STOP position
: PARTS LOCATION
Code See Page Code See Page Code See Page
C12 A 40 F7 38 (2JZ–GE)W1
37 (1UZ–FE)
C13 B 40 J6 41W1
39 (2JZ–GE)
C17 40 J10 41W2
37 (1UZ–FE)
F7 36 (1UZ–FE) J12 41W2
39 (2JZ–GE)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1B 26 Cowl Wire and Driver Side J/B (Left Kick Panel)
1D 26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26 Cowl Wire and Driver Side J/B (Left Kick Panel)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
ID1 50 Cowl Wire and Cowl Wire (Left Side of the Instrument Panel Reinforcement)
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
SYSTEM OUTLINE
SERVICE HINTS
WIPER AND WASHER
: GROUND POINTS
Code See Page Ground Points Location
EB46 (1UZ–FE)
Left FenderEB48 (2JZ–GE)
Left Fender
IF 50 Left Kick Panel
IG 50 Left Side of the Cowl Panel
X 2 X X X X 7 8 X
X 11 X X X X 16 17 X
1 2 3
4 5
A A
A A A AA A A A AA A A A A A A A
AAA A
1 2 X
X
X
X
XX
XX
X
1
1 2
BLACK
GRAYJ6
ORANGE GRAY
BLACK BLACK
(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
C12 (A) C13 (B) C17
F7 J10 J12
W1 W2
X
X10
MEMO
WIRELESS DOOR LOCK CONTROL
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
10ADOME
15AECU–IG
1E2 1H5 1E1
A13 1
B 6
BODYECU NO. 2
A
B–R
B–R
L–O
B–R
G–W
ILE MPX1
1F13 1G6
11
GND
2E5
IG
1H6
8
G–W
A1
O
GSWO
B–R
G–W
G–W
L–O
O
L–Y
II IF
JUNCTIONCONNECTOR
J17
JUNCTIONCONNECTOR
J 6
A
A
A
W–B
W–B
W–B
W–B
IE18 IE117
C13COMBINATIONMETER
IJ110
6 7
WW W W ( *1)
WL
16
8 2
L–R
( *1)
W ( *2)
IJ13
D27
F24
D28 (*4)F11 (*3)
ENGINE CONTROLMODULE
LL W
W
5
TILT ANDTELESCOPIC ECU
T 5
A/C CONTROL ASSEMBLYA13
MULTI–DISPLAYM 3
L–Y
GFR
OM
IN
TER
IOR
LIG
HT
S
E 5 FD , E 7
1H11
9
A19
MPX2
BECU
MPX2 MPX1 MPX– MPX+
MPX2 MPX1MPX1MPX2
211
2G6 2F13
IFII
JUNCTIONCONNECTOR
J 6
JUNCTIONCONNECTOR
J10
11
A
A
A
IL36 IL318 IL317
A5 A6 A4
BM
JUNCTIONCONNECTOR
J22
A13A12
2
WIR
ELE
SS
DO
OR
LO
CK
BU
ZZE
R
W 4
IC116
M
1543
A2
A
1WIRELESS DOORLOCK ECU
W 5
LUGGAGECOMPARTMENTDOOR OPENERMOTOR
L 5
W
L–Y
O
L–O
G–W
G–W
7
W W–B
W–B
LG–R P LG L
P–L
P–B
LG–R P LG L
W–B
W–B
W–B
L–Y
W–B
RCO RDA RSSI TR+ BZR2 BZR
B–R
B–R
A3
2G4 2B8 2E1
I 6
10AMPX–B
1
2F11 2E2
A15
15ARADIONO. 2
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1H10
B D
DBB B
BJUNCTIONCONNECTOR
J 7
JUNCTIONCONNECTOR
J15JUNCTIONCONNECTOR
J13
2
1
B
8 1
B 5
BODY ECU NO. 1
A
B–R B–R
B–R B–R
B–R
B–R
G–WG–W
G–W
L–O
G–W
B–RB–R
G–W
G–W
G–W
G–W
B–R
GR
GR
ACC
* 1 : W/ LEXUS NAVIGATION SYSTEM* 2 : W/O LEXUS NAVIGATION SYSTEM
* 3 : 1UZ–FE* 4 : 2JZ–GE
BU
ZZE
R
1
GSW BECU
MPX1 GND
IG
B–R
A19
WIRELESS DOOR LOCK CONTROL
B–R
B–R
G–W
L–O
G–W
G–W
B–R
B–R
B–R
B–R
B–R
G–W
G–W
L–O
G–W
B–R
A25
2H13 2G7
IJ27 IK110 IB19
20AP FRDOOR
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
2F2
5
10
4
HAZARD SWH18
L–O
W–G
W–G
R–Y
R–Y
L–B
R–Y
L–B
R–Y
L–O
R–Y
R–Y
HAZ MPX2
B 5
BODY ECU NO. 1
A
2H11
9
BSUBPWS
B1
B–R
B–R
B–R
G–W
G–W
L–O
G–W
B–R
R–Y
L–B
R–Y
L–O
I 6
C3C9 C2
IB1
6
IB1
1
IB1
13
G–W
G–W
L–O
G–W
B–RL–
O
G–W B–R
IB1
7
IB15
20AD FRDOOR
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1F2
A1 C18
D22
DRIVER DOOR ECU
BA , D23 C, D24
MPX1 CPUB SIG BDR
L–B O
L–B
B–R
B–R
G–W
G–W
O
G–W
B–R
A6 A7 A13
5 17 16 1
15DOOR LOCK CONTROL SW[POWER WINDOW MASTER SW]
P11DOOR LOCK MOTOR, DOOR KEY LOCK ANDUNLOCK SW AND DOOR LOCK DETECTIONSW FRONT LH
D18
A17
2
A8
3
A15
4
A3
5
A4
6
A5
L–B
R–Y
L–O
LG–B
LG–R
W–B
G–B
G–R
BR
–B
GR
P–B
P–G
ML MUL PWE A– A+ LSWE LSW KL KUL
IF
A
A
A
JUNCTIONCONNECTOR
J10
JUNCTIONCONNECTOR
J 6
1
2
B15 C12B14
DOORCOURTESY SWFRONT LH
D13
CTY CTYE GND
R–G
W–B
W–B
W–B
W–B
IB14
W–B
MPX2
L UL E
PWS
LOC
K
UN
LOC
K
M
UN
LOC
K
LOC
K
LOC
KD
ETE
CTI
ON
WIRELESS DOOR LOCK CONTROL
B–R
B–R
G–W
G–W
O
G–W
B–R
L–O
R–Y
L–B
IK113
IK11
IC3
15
IK1
6
A9A2A3
B–R
O
G–W
O
G–W
B–R
O
B–R
G–W
OG
–W B–R O
CPUB SIG MPX1
F11
FRONT PASSENGER DOOR ECU
BA , F12 C, F13
C1 C6 C7 A18
IK15 IK17
C16
4
3 1 2
L–B
L–B
LG–B
LG–R
W–B
L–O
L–O
BDR ML MUL DLE MPX2
R–Y
A12
IK14
II
A
A
JUN
CT
ION
CO
NN
EC
TO
RJ1
7
DOOR LOCKCONTROL SW RH
D17
W–B
W–B
W–B
GND
C5 C4 C3
1 2 3
P–G
P–B G
KUL KL LSW
DOOR LOCK MOTOR, DOOR KEY LOCKAND UNLOCK SW AND DOOR LOCKDETECTION SW FRONT RH
D19
C15 C17 C8
4 5 6
BR
–B
G–B
G–R
LSWE A– A+
12
B15 B14
DOOR COURTESY SWFRONT RH
D14
CTY CTYE
R–G
W–B
A
JUNCTIONCONNECTOR
J 8
A
L UL E
B
LOC
K
UN
LOC
K
M
UN
LOC
K
LOC
K
LOC
KD
ETE
CTI
ON
B–R
O
G–W
O
G–W
B–R
BA1
6
BA18
BA1
11
20AD RRDOOR
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
1E6
BA12
B–R
G–W
O
O
G–W
B–R
L–R
L–R
B–R
G–WO
5 15 9 14
L–R
MPX1 CPUB SIG BDR
L–O
* 5 : W/ DRIVING POSITION MEMORY* 6 : W/O DRIVING POSITION MEMORY
1 2 3 4
1 13 17 19
DOOR LOCK MOTOR ANDDOOR LOCK DETECTIONSW REAR LH
D20
A– A+ LSW LSWE
G–B
G–R G
BR
–B
1
2
BC110BC13
BA13
IL315
IC22
10 11
L–O
L–O
L–O
L–O
L–Y
OL–O
(*6)
( *5)
( *5)
( *5)
( *5)
4
BJ
POWER SEAT ECUP19
DOORCOURTESY SWREAR LH
D15
BA19
8 18 25
REAR DOOR LH ECUR12
R–W
W–B
W–B
W–B
W–B
CTY CTYE GND MPX2
MPX1 MPX2M
LOC
KD
ETE
CT
ION
WIRELESS DOOR LOCK CONTROL
GNDCTYE
9 BB1
W–B
W–B
CTY
W–B
R–Y
W–B
REAR DOOR RH ECU
25188
R13
DOORCOURTESY SWREAR RH
O
G–W
B–R
20AP RRDOOR
FROM POWER SOURCE SYSTEM (SEE PAGE 60)
2E6
BB12
L–R
L–R
14
L–R
MPX1 SIG BDR
1 2 3 4
19 17 1 13
DOOR LOCK MOTOR ANDDOOR LOCK DETECTIONSW REAR RH
D21
A– A+LSWLSWE
BR
–B G
G–B
G–R
1
2
BL
D16
BB1
3
BB1
6
BB111
IL1
16
5 9 15
O OB
–R
G–W O
L–OBB1
8 L–O
B–R
G–W
4
SEL1
10 BB1
W–B
W–B
20
BM
A
JUNCTIONCONNECTOR
J22
CPUB MPX2
M
LOC
KD
ETE
CT
ION
In this system, the wireless door lock ECU receives weak radio wave transmitted from the transmitter built–into the ignitionkey and outputs the signal to the body ECU No.2. Through communication control of the body ECU and door ECU etc. , allthe doors and the luggage door can be locked and unlocked by the remote control.
1. NORMAL OPERATIONLock operationWhen the lock SW on the transmitter is pressed, all the doors are locked.Unlock operationWhen the unlock SW on the transmitter is pressed once, only the driver door is unlocked. When the unlock SW is pressedagain within 3 sec., all the doors are unlocked.Luggage door unlock operationWhen the luggage door unlock SW is kept pressed for approximately 1 sec. or longer, the luggage door is opened.
2. AUTO LOCK FUNCTIONIf the door is not actually opened within 30 sec. after the door has been unlocked by pressing the unlock SW on thetransmitter, all the doors are automatically locked. If any of the following conditions is detected, the auto lock does notfunction.Any door is opened.The ignition key is inserted into the ignition SW.When the lock detection SW of all the doors are locked.
3. WIRELESS DOOR LOCK STOP FUNCTIONIf any of the following conditions is detected, the wireless door lock does not function.Lock operationAny door is open (The door courtesy SW is on). The ignition key is inserted into the ignition key cylinder (The unlock warningSW is on). The ignition SW is turned to the ON position.Unlock operationThe ignition SW is turned to the ON position.Luggage door unlock operationThe ignition SW is turned to the ON position.
4. BUZZER SOUND FUNCTIONWhen the body ECU No.1 receives the door lock signal from the door ECU via the door lock motor, during lock operation, thewireless door lock buzzer goes on once (for approximately 0.1 sec.).When the body ECU No.1 receives the door unlock signal from the door ECU via the door lock motor, during unlockoperation, the wireless door lock buzzer goes on twice (for approximately 0.2 sec. at intervals of 0.1 sec.).When the luggage door is unlocked, and the body ECU No.1 outputs the unlock signal, the wireless door lock buzzer goeson once (for approximately 0.5 sec.).When the body ECU No.1 receives the lock signal from the transmitter while any door is open, the wireless door lock buzzersounds for approximately 10 sec. If the door is closed or if the unlock signal is received from the transmitter while the buzzeris sounding, the buzzer stops.
5. CAR FINDER FUNCTIONWhen the lock SW on the transmitter is pressed with all the doors locked, the body ECU No.1 receives the signal and thehazard light flashes once through communication control of the body ECU and door ECU etc.
6. ILLUMINATED ENTRY FUNCTIONWhen the body ECU No.2 detects the unlock state after the unlock operation has been made, it turns on the lights, such asthe ignition key cylinder light for 15 sec. If all the doors are locked during this operation, lighting is cancelled and the lightsimmediately fade out.
7. PANIC MODE FUNCTIONWhen the lock switch on the transmitter is kept pressed for approximately 2.5 sec., the body ECU No.1 receives the signaland enters the panic mode. The theft alarm goes on upon receiving the signal, the body ECU No.1, and the headlights andtaillights flash through the communication of the body ECU and door ECU etc. At this time, when any SW on the transmitteris pressed, the panic mode is cancelled, the theft alarm is stopped, and the headlights and taillights go off.
8. REPEAT FUNCTIONIf the lock detection signal in response to the output signal is not received after the body ECU No.1 has output the locksignal, the lock signal is output again after approximately 2 sec.
SYSTEM OUTLINE
WIRELESS DOOR LOCK CONTROL
W5 WIRELESS DOOR LOCK ECU1–GROUND : Always continuity7–GROUND : Always approx. 12 volts
L5 LUGGAGE COMPARTMENT DOOR OPENER MOTOR1–GROUND : Approx. 12 volts with luggage door open operate
D18 DOOR LOCK MOTOR, DOOR KEY LOCK AND UNLOCK SW AND DOOR LOCK DETECTION SW FRONT LH2–GROUND : Approx. 12 volts with door lock motor at lock operate1–GROUND : Approx. 12 volts with door lock motor at unlock operate
5–3 : Closed with door lock cylinder locked with key6–3 : Closed with door lock cylinder unlocked with key
D19 DOOR LOCK MOTOR, DOOR KEY LOCK AND UNLOCK SW AND DOOR LOCK DETECTION SW FRONT RH6–GROUND : Approx. 12 volts with door lock motor at lock operate5–GROUND : Approx. 12 volts with door lock motor at unlock operate
2–4 : Closed with door lock cylinder locked with key1–4 : Closed with door lock cylinder unlocked with key
D20 DOOR LOCK MOTOR AND DOOR LOCK DETECTION SW REAR LH2–GROUND : Approx. 12 volts with door lock motor at lock operate1–GROUND : Approx. 12 volts with door lock motor at unlock operate
D21 DOOR LOCK MOTOR AND DOOR LOCK DETECTION SW REAR RH4–GROUND : Approx. 12 volts with door lock motor at lock operate3–GROUND : Approx. 12 volts with door lock motor at unlock operate
: PARTS LOCATION
Code See Page Code See Page Code See Page
A13 40 D23 B 42 J17 41
B5 A 40 D24 C 42 J22 42
B6 A 40 E5 D 38 (2JZ–GE) L5 43
C13 40 E7 F 36 (1UZ–FE) M3 41
D13 42 F11 A 42 P11 43
D14 42 F12 B 42 P19 44
D15 42 F13 C 42 R12 43
D16 42 H18 40 R13 43
D17 42 J6 41 T5 41
D18 42 J7 41W4
37 (1UZ–FE)
D19 42 J8 41W4
39 (2JZ–GE)
D20 42 J10 41 W5 43
D21 42 J13 41
D22 A 42 J15 41
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
SERVICE HINTS
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1E 26 Floor No.2 Wire and Driver Side J/B (Left Kick Panel)
1F 26
1G27
Cowl Wire and Driver Side J/B (Left Kick Panel)
1H27
( )
2B 28 Engine Room Main Wire and Passenger Side J/B (Right Kick Panel)
2E 28 Floor No.1 Wire and Passenger Side J/B (Right Kick Panel)
2F 28
2G29
Cowl Wire and Passenger Side J/B (Right Kick Panel)
2H29
g ( g )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IB1 50 Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC1
IC2 50 Floor No.2 Wire and Cowl Wire (Left Kick Panel)
IC3
( )
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IJ152 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IJ252 Instrument Panel Wire and Cowl Wire (Left Side of the Blower Unit)
IK1 52 Front Door RH Wire and Cowl Wire (Right Kick Panel)
IL152 Floor No 1 Wire and Cowl Wire (Right Kick Panel)
IL352 Floor No.1 Wire and Cowl Wire (Right Kick Panel)
BA1 54 Rear Door LH Wire and Floor No.2 Wire (Under the Center Pillar LH)
BB1 54 Rear Door RH Wire and Floor No.1 Wire (Under the Center Pillar RH)
BC1 56 Floor No.2 Wire and Front Seat LH Wire (Under the Driver’s Seat)
: GROUND POINTS
Code See Page Ground Points Location
IF 50 Left Kick Panel
II 50 Right Side of the Cowl Panel
BJ 54 Rear Floor Partition Panel LH
BL 54 Rear Floor Partition Panel RH
BM 54 Quarter Panel RH
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I6 52 Cowl Wire
WIRELESS DOOR LOCK CONTROL
5 X X
X
X 16
2 3 4 5 6 X X12 13
X 15 19 25
1 X 13
X 19 X X X X
1 2 3 4 1 2 3 4 5 6 1 2 3 4 5 6
1 2 3 4 1 2 3 41 4 5
13 X
3
86
1715
7
14 15
2 3 X X 9
X 12 X 18X X X X
X X X X
X X X 28
X
27
X X X X X X 11 X X
24
1 2 1 2 1 2
1 2
A13 B5 (A) B6 (A)
C13GRAY GRAY GRAY
GRAYD17
BLACK BLACK
BLACK BLACK GRAY GRAY
GRAY (2JZ–GE) (1UZ–FE)
D13 D14 D15
D16 D18 D19
D20 D21 D22 (A) D23 (B)
D24 (C) E5 (D) E7 (F)
2 X
X1 1
X X X X
X X X 14 15
1 4 5
X
3
86
1715
7
16
X
X
X
X X 10
A A A A B B B B B B B
A A
A A A A
A A A A AA A A A A A A A
D
DD
D
B
B B B B
AAAA A A
A A
A A A A 2 X
X 8 X X X X X
X 5
X
X 15 16 17 X X
X X
1011 X X
1
1 2 1 X 3 4 5 X 7
6 7 X
1 X 4 5 X 8 9 13
14 15 171819 X 25
1 X 4 5 X 8 9 13
14 15 171819 20 25
2 3 X X X 9
X 12 X X X 18
GRAY GRAY
BLACK BLACKGRAYJ6
ORANGEJ13 J15 J17
J22BLACK BLUE
P11 P19 R12
R13GRAY BLACK
W5
(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
F12 (B) F13 (C)
H18 J7 J8
J10
L5 M3
T5 W4
GRAYF11 (A)
I GROUND POINT
ENG MAIN RELAY
EFI RELAY
STARTER RELAY
ABS SOL RELAY
HEADLIGHT RH (LOW)
FRONT SIDEMARKER LIGHT RH
PARKING LIGHT RH
FRONT FOG LIGHT RH
FRONT TURN SIGNALLIGHT RH
ABS & TRAC &VSC ACTUATOR
A/C LOCK SENSOR
DATA LINKCONNECTOR 1
ENGINE OIL LEVELSENSOR
HEATED OXYGENSENSOR(BANK 1 SENSOR 1)
HEATER OXYGENSENSOR(BANK 2 SENSOR 1)
HEATED OXYGENSENSOR(BANK 1 SENSOR 2)
ENGINECONTROLMODULE
(ME01)
(E01)
(E02)
(E03)
CRUISE CONTROLSW [COMB. SW]
HEATED OXYGENSENSOR(BANK 2 SENSOR 2)
HEATED OXYGENSENSOR(BANK 1 SENSOR 2)
IGNITION COILAND IGNITER NO. 1
IGNITION COILAND IGNITER NO. 2
IGNITION COILAND IGNITER NO. 3
IGNITION COILAND IGNITER NO. 4
IGNITION COILAND IGNITER NO. 5
IGNITION COILAND IGNITER NO. 6
IGNITION COILAND IGNITER NO. 7
IGNITION COILAND IGNITER NO. 8
IGNITER
DATA LINKCONNECTOR 3
2
1
1
I 5
I 5
EE EA
W–B
W–B
W–B
BR
W–B
W–B
W–B
BR
BR
W–B
W–B
W–B
W–B
W–B
W–B
A
A A
(E1)
ID1
9
E 1
E 1
E 1
E 1
E 1
E 1
E 1
BR
(*1)
BR
(*1)
BR
BR
(*1)
BR
BR
(*1)
BR
BR
(*1)
BR
BR
(*1)
BR
BR
(*1)
BR
BR
(*1)
ED EC
EA3
6
EA3
7
E 1
E 1
E 1
E 1
E 1
E 1
E
D
A
E
E
E
A
D
A
JUNCTIONCONNECTOR
J 2
JUNCTIONCONNECTOR
J 9
JUNCTIONCONNECTOR
J 4
BR
BR
BR
BR
(*1)
BR
(*2)
BR BR
BR
(*1)
BR
BR
BR
W–B
W–B
W–B
BR
BR
BR
(*2)
BR
BR
BR
BR
BR
BR
BR
BR
BR
BR
W–B
W–BBR
BR
BR
BR
1
1JUNCTIONCONNECTOR
J 5
(EXCEPT HID TYPE)
HEADLIGHT CONTROLECU RH
W–B
(HID TYPE)
A
W–B
W–B
W–B
W–B
W–B
FRONT TURN SIGNALLIGHT LH
FRONT SIDE MARKERLIGHT LH
PARKING LIGHT LH
FRONT FOG LIGHT LH
HEADLIGHT BEAMLEVEL CONTROL ECU
ENGINE HOODCOURTESY SW
WASHER LEVELWARNING SW
A/C DUALPRESSURE SW
WATER TEMP. SW
FAN NO. 2 RELAY
FAN NO. 3 RELAY
HEADLIGHT CLEANERCONTROL RELAY
HEADLIGHT CLEANERMOTOR
FRONT WIPER MOTOR
BRAKE FLUID LEVELWARNING SW
POWER STEERINGOIL PRESSURE SW
DAYTIME RUNNINGLIGHT RELAY NO. 4
(EC)ENGINECONTROLMODULE
(EOM)
DRIVER DOOR ECU
MIRROR HEATER LH
PPS ECU
LUGGAGE COMPARTMENTDOOR OPENER SW
DATA LINKCONNECTOR 3
TURN SIGNAL FLASHER
TILT ANDTELESCOPIC ECU
EXHAUST GAS SENSOR
RADIATOR FAN MOTOR
HEADLIGHT LH (LOW)
ABS & TRAC &VSC ECU
COMBINATIONMETER (ES)
TILT ANDTELESCOPIC ECU
CENTER AIRBAGSENSOR ASSEMBLY(E2)
LIGHT CONTROL SW[COMB. SW]
DIMMER SW[COMB. SW]
TURN SIGNAL SW[COMB. SW]
FRONT WIPER ANDWASHER SW[COMB. SW]
STEERING SENSOR[COMB. SW]
KEY INTERLOCKSOLENOID
3
3
W–B
(*5)EB2
2
EB12W–B
(*5)
W–B
(*5)
W–B
(*5)E 4
E 4
E 4
E 4
E 4
E 4
W–B
(CANADA)
W–B
(CANADA)
W–B
(*5)
W–B
(*5)
W–B
(*3)
W–B
(*4)
EA1
4W–B
(*3)
W–B
(*4)
W–B
W–B
(*4)
W–B
(*4)W–B
W–B
W–BW–B
E 4
E 4
E 4
E 4
E 4
BR
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–BW
–B
W–B
EB
W–B
TRANSPONDER KEYAMPLIFIER
I 1
I 1
I 1
I 1
IE1
11
(GND1)
(GND2)
IB1
4
IB13
A
A
A
A AA
A
A A
A
A
W–B
W–B
W–B
W–B
W–B
O W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
A W–B
A W–B
A W–B
A W–B
A W–BA W–BW–B
W–B
W–B
W–B
JUN
CTI
ON
CO
NN
EC
TOR
J10
W–B
JUNCTIONCONNECTOR
J 6
IF
HEADLIGHT CONTROLECU LH
W–B
(EXCEPT HID TYPE)
(HID TYPE)
* 5 : W/O DAYTIME RUNNING LIGHT* 4 : W/ DAYTIME RUNNING LIGHT
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
UNLOCK WARNINGSW
W–B
DAYTIME RUNNINGLIGHT RELAY NO. 3
* 2 : 2JZ–GE* 1 : 1UZ–FE
* 3 : 2JZ–GE W/O DAYTIME RUNNING LIGHT
POWER STEERINGOIL PRESSURE SW
DAYTIME RUNNINGLIGHT RESISTOR ORSHORT CONNECTOR
I GROUND POINT
ELECTRONICALLYCONTROLLEDTRANSMISSIONPATTERN SELECT SW
MOON ROOFCONTROL SW
PERSONAL LIGHT
VANITY LIGHT LH
VANITY LIGHT RH
INTERIOR LIGHTREAR LH
INTERIOR LIGHTREAR RH
GARAGE DOOR OPENER
FRONT PASSENGERDOOR ECU
MIRROR HEATER RH
SHIFT LOCKCONTROL ECU
VSC OFF SW
HTR RELAY
POWER OUTLET
CIGARETTE LIGHTER
GLOVE BOX LIGHT SW
A/C CONTROLASSEMBLY
HAZARD SW
CLOCK
COMBINATION METER
BODY ECU NO. 2
ABS & TRAC &VSC ECU
CENTER AIRBAGSENSOR ASSEMBLY (E1)
FAN NO. 2 RELAY
FAN NO. 3 RELAY
POWER STEERINGOIL PRESSURE SW
FRONT WIPER MOTOR
BRAKE FLUID LEVELWARNING SW
INNER MIRROR
BLOWER MOTORCONTROLLER
BODY ECU NO. 1
IG RELAY
NOISE FILTER
NOISE FILTER
HIGH BEAM INDICATORLIGHT [COMB. METER]
DAYTIME RUNNINGLIGHT RELAY (MAIN)
SEAT HEATER SW
B 2
B 2
B 2
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
IK1
4
IK13
I 6
I 6
I 6
I 6
4
3F
5
3E
5
3C5
3B
5
3G5
1D
5
1G
6
1C6
1F13
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–BW–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B2F13
2D5
IE1
12
(GND3)
(GND4)
3
3
EB2
2
EB1
2
EA1
4
W–B
(*4)
W–B
(*4)
W–B
(*2 *4)
W–B
(*4)
W–B
(*4)
W–B
(*2 *4)
I 1
I 1W–B
(*4)
W–B
(*4)
W–B
B
B
W–BP
W–B
(*4)(*4)
(*4)
BW–B
BW–BW–B
IG
JUN
CT
ION
CO
NN
EC
TO
RJ1
1
( *4)
2G
6
II
JUNCTIONCONNECTOR
J17
A
A
A
A
A
W–B
W–B
W–B
W–BW–B
W–B
W–B
W–B
W–B
MOON ROOF CONTROLECU B 2
W–B
W–B
IG13
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
MIRROR RETRACTIONSW
W–B
HIGH MOUNTEDSTOP LIGHT (BULB)
HIGH MOUNTEDSTOP LIGHT (LED)
REAR COMBINATIONLIGHT LH
REAR COMBINATIONLIGHT LH
REAR COMBINATIONLIGHT RH
REAR COMBINATIONLIGHT RH
LICENSE PLATELIGHT LH
LICENSE PLATELIGHT RH
POWER SEAT ECU
POWER SEAT CONTROLSW (DRIVER’ S SEAT)
LUMBAR SUPPORTCONTROL SW(DRIVER’ S SEAT)
SEAT HEATER(DRIVER’ S SEAT BACK)
BUCKLE SW LH
POWER SEATPOSITION SENSOR(DRIVER’ S SEAT REAR VERTICAL CONTROL)
POWER SEATPOSITION SENSOR(DRIVER’ S SEAT FRONT VERTICAL CONTROL)
POWER SEATPOSITION SENSOR(DRIVER’ S SEAT SLIDE CONTROL)
POWER SEATPOSITION SENSOR(DRIVER’ S SEAT RECLINING CONTROL)
POWER SEAT ECU
POWER SEAT CONTROLSW (DRIVER’ S SEAT)
REAR DOOR LH ECU
LIGHT FAILURESENSOR
LUGGAGE COMPARTMENTDOOR KEY UNLOCK SW
FUEL LID OPENERMOTOR
FUEL PUMP CONTROLECU
B 4
B 4
B 4
B 4
B 4
B 4
B 4
B 6
B 6
B 6
B 6
BC111BC112
BA19
W–B
W–B
BR
(*5)
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
AA
A
A
A
A
A
A
BJBK
A
A
JUNCTIONCONNECTOR
J20
JUN
CTI
ON
CO
NN
EC
TOR
J23
W–B
W–B
W–B
W–B
W–B
BR
BR
BR
BR
BR
W–B
(*5)
(*5)
(*5)
(*5)
(*5)
(*5)
(*6)
BR
BR
BR
BR
( *5)
BR
W–B
( *5)
W–B
W–B
W–B
BR
(*5)
W–B
W–B
* 4 : W/ DAYTIME RUNNING LIGHT* 5 : W/ DRIVING POSITION MEMORY* 6 : W/O DRIVING POSITION MEMORY
B 4
W–B
NOISE FILTER(STOP LIGHT)
W–B
* 2 : 2JZ–GE
I GROUND POINT
MULTI–DISPLAY
STEREO COMPONENTAMPLIFIER
CD AUTOMATICCHANGER
RADIO AND PLAYER
IH
W–B
W–BW–B
W–B
(EXCEPT NAKAMICHI)
(GND5)
10
JUN
CTI
ON
CO
NN
EC
TO
R
POWER SEAT CONTROLSW (FRONTPASSENGER’ S SEAT)
LUMBAR SUPPORT SW(FRONT PASSENGER’ S SEAT)
SEAT HEATER(FRONT PASSENGER’ S SEAT BACK)
BUCKLE SW RH
REAR DOORRH ECU (GND)
BB1
STEREOCOMPONENTAMPLIFIER
(GND4)
NAVIGATION ECU
TELEPHONETRANSCEIVER ANDSPEAKER RELAY
CELLULAR PHONE(HAND SET)
REAR DOORRH ECU (SEL1)
WIRELESS DOORLOCK ECU
9
BB1
BLBM
BD112
B
B
B
B
A
A
A
A
A
A
B
W–B
W–B
W–B
W–B
W–B
W–BW–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B W–B
W–B
(NAKAMICHI)
(NAKAMICHI)
J24
(*7)
* 7 : W/ LEXUS NAVIGATION SYSTEM
J22
JUN
CTI
ON
CO
NN
EC
TO
R
(EXCEPT NAKAMICHI)
D/A CONVERTERW–B
(NAKAMICHI)
AUTO ANTENNACONTROL RELAYAND MOTOR
W–B
: PARTS LOCATION
Code See Page Code See Page Code See Page
J237 (1UZ–FE) J5 39 (2JZ–GE) J17 41
J239 (2JZ–GE) J6 41 J20 42
J437 (1UZ–FE) J9 41 J22 42
J439 (2JZ–GE) J10 41 J23 44
J5 37 (1UZ–FE) J11 41 J24 44
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
1 22 Engine Room No.1 R/B (Engine Compartment Right)
2 23 Engine Room No.2 R/B (Engine Compartment Left)
3 24 Engine Room No.3 R/B (Engine Compartment Left)
4 25 Passenger Side R/B (Right Kick Panel)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
Code See Page Junction Block and Wire Harness (Connector Location)
1C26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1D26 Instrument Panel Wire and Driver Side J/B (Left Kick Panel)
1F 26Cowl Wire and Driver Side J/B (Left Kick Panel)
1G 27Cowl Wire and Driver Side J/B (Left Kick Panel)
2D 28 Roof Wire and Passenger Side J/B (Right Kick Panel)
2F 28Cowl Wire and Passenger Side J/B (Right Kick Panel)
2G 29Cowl Wire and Passenger Side J/B (Right Kick Panel)
3B30
3C30
3E Instrument Panel Wire and Instrument Panel J/B (Instrument Panel Reinforcement Center)
3F 31
( )
3G
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
EA1 48 (2JZ–GE)
EA346 (1UZ–FE) Engine Wire and Cowl Wire (Inside of the ECU Box)
EA348 (2JZ–GE)
g ( )
EB146 (1UZ–FE)
EB148 (2JZ–GE)
Cowl Wire and Relay Block Wire (Inside of the Engine Room No 3 R/B)
EB246 (1UZ–FE)
Cowl Wire and Relay Block Wire (Inside of the Engine Room No.3 R/B)
EB248 (2JZ–GE)
IB1 50 Front Door LH Wire and Cowl Wire (Left Kick Panel)
ID1 50 Cowl Wire and Cowl Wire (Left Side of the Instrument Panel Reinforcement)
IE1 50 Instrument Panel Wire and Cowl Wire (Left Side of the Steering Column)
IG1 50 Cowl Wire and Blower Sub Wire (Left Side of the Blower Unit)
IK1 52 Front Door RH Wire and Cowl Wire (Right Kick Panel)
BA1 54 Rear Door LH Wire and Floor No.2 Wire (Under the Center Pillar LH)
BB1 54 Rear Door RH Wire and Floor No.1 Wire (Under the Center Pillar RH)
BC1 56 Floor No.2 Wire and Front Seat LH Wire (Under the Driver’s Seat)
BD1 56 Floor No.1 Wire and Front Seat RH Wire (Under the Front Passenger’s Seat)
I GROUND POINT
: GROUND POINTS
Code See Page Ground Points Location
EA46 (1UZ–FE)
Right FenderEA48 (2JZ–GE)
Right Fender
EB46 (1UZ–FE)
Left FenderEB48 (2JZ–GE)
Left Fender
EC46 (1UZ–FE) RH Bank of the Cylinder Head
EC48 (2JZ–GE) Front Side of the Intake Manifold
ED46 (1UZ–FE) LH Bank of the Cylinder Head
ED48 (2JZ–GE) Rear Side of the Intake Manifold
EE46 (1UZ–FE)
Under the ABS & TRAC & VSC ActuatorEE48 (2JZ–GE)
Under the ABS & TRAC & VSC Actuator
IF 50 Left Kick Panel
IG 50 Left Side of the Cowl Panel
IH 50 Instrument Panel Brace RH
II 50 Right Side of the Cowl Panel
BJ 54 Rear Floor Partition Panel LH
BK 54 Quarter Panel LH
BL 54 Rear Floor Partition Panel RH
BM 54 Quarter Panel RH
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E146 (1UZ–FE)
Engine WireI5 52 Engine Room Main Wire
E148 (2JZ–GE)
Engine WireI6 52 Cowl Wire
E446 (1UZ–FE) B2 54 Roof Wire
E448 (2JZ–GE) Cowl Wire B4 54 Floor No.2 Wire
I1 52 B6 56 Front Seat LH Wire
A A A A AA A A A A A A A
D D
AAAAAA A A A A A A A A
A A A A
EE
EE
EE
E
EE
EE
EE
XX
E
X
A A A A AA A A A A A A A
B B B B B B B
AAAA A A
A A
A A A A
A A
A A A A
AAAA A A
BB
B B B B
ORANGEJ4
BLUEJ6
(1UZ–FE) (2JZ–GE) ORANGE
GRAYJ17 J20 J22
J23 J24
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7)
(Hint : See Page 7) (Hint : See Page 7)
(Hint : See Page 7)(Hint : See Page 7)
J2 J5
J9 J9 J10
J11
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
J[A] : System Title
[B] : Indicates the wiring color.
Wire colors are indicated by an alphabetical code.
B = Black W = White BR = Brown
L = Blue V = Violet SB = Sky Blue
R = Red O = Orange LG = Light Green
P = Pink Y = Yellow GR = Gray
G = Green
The first letter indicates the basic wire color and thesecond letter indicates the color of the stripe.Example: L – Y
L(Blue)
Y(Yellow)
[C] : The position of the parts is the same as shown inthe wiring diagram and wire routing.
[D] : Indicates the pin number of the connector.The numbering system is different for femaleand male connectors.Example : Numbered in order
from upper left tolower right
Numbered in orderfrom upper right tolower left
Female Male
The numbering system for the overall wiringdiagram is the same as above
[E] : Indicates a Relay Block. No shading is used and only the Relay Block No. is shown to distinguishit from the J/B.Example : Indicates Relay Block No.1
[F] : Junction Block (The number in the circle is theJ/B No. and the connector code is shown besideit). Junction Blocks are shaded to clearlyseparate them from other parts.
3C indicatesthat it is insideJunction BlockNo.3
Example:
[G] : Indicates related system.
[H] : Indicates the wiring harness and wiring harnessconnector. The wiring harness with maleterminal is shown with arrows ( ).Outside numerals are pin numbers.
Female Male ( )
[I] : ( ) is used to indicate different wiring andconnector, etc. when the vehicle model, engine type, or specification is different.
[J] : Indicates a shielded cable.
[K] : Indicates and located on ground point.
[L] : The same code occuring on the next pageindicates that the wire harness is continuous.
SYSTEM INDEXJ O
VE
RA
LL ELE
CT
RIC
AL W
IRIN
G D
IAG
RA
M
SYSTEMS LOCATION SYSTEMS LOCATION
Auto Antenna 18–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Air Conditioning 29–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Glare–Resistant EC Mirror 21–2. . . . . . . . . . . . . . . . . . . . . . . .
Back–Up Light 10–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cellular Mobile Telephone 23–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging 3–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cigarette Lighter and Power Outlet 18–3. . . . . . . . . . . . . . . . . . . . . . . . . . .
Clock 18–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combination Meter 28–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise Control1UZ–FE 14–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2JZ–GE 15–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electric Tension Reducer 18–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronically Controlled Transmission and A/T Indicator1UZ–FE 12–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2JZ–GE 13–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Control and Engine Immobiliser System1UZ–FE 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2JZ–GE 5–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fog Light 6–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Lid Opener 18–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlightw/ Daytime Running Light 7–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . w/o Daytime Running Light 6–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight Beam Level Control 11–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight Cleaner 11–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horn 19–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Illumination 9–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LEXUS Navigation System 25–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Moon Roof 20–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multiplex Communication System 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power SeatDriver’s Seat w/o Driving Position Memory 22–2. . . . . . . . . . . . . . . . . Front Passenger’s Seat 22–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Source 1~30–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Tilt and Power Telescopic 20–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PPS 24–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radiator Fan and Condenser Fan 30–2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radio and PlayerNAKAMICHI 26–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Except NAKAMICHI 27–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Window Defogger and Mirror Heater 24–3. . . . . . . . . . . . . . . . . . . .
Seat Heater 21–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shift Lock 25–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SRS 17–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting and Ignition1UZ–FE 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2JZ–GE 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taillight and Stop Light 8–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn Signal and Hazard Warning Light 10–3. . . . . . . . . . . . . . . . . . . . . . . .
VSC 16–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiper and Washer 19–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MEMO
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
1 2 3 4
1 GS 400 / GS 300 ELECTRICAL WIRING DIAGRAM (Cont. next page)
1
120A ALT
20A EC
U–B
1
1 11
2B2 1K1
10A D
OM
E
5A EC
U–B
2
2D72F7 2E5 2H12
30A D P
/SEA
T
20A D
RR
DO
OR
1E9 1E6
20A D
FR D
OO
R
40A A
M1
1F2 1J3
2
ACC
IG1AM1
3
4
BATTERY
1J1
15A E
CU
–IG
1E2 1H5
10A MP
X–B
1
1
B–L
WBR–L
R–L
B–Y
B–R
B–R
W–L
L–B
L–R
L–WB
G–W
L–Y
L–Y
L–Y
W–R
11
1 1
2
22
2
I22IGNITION SW
M u ltip lex C ommun ica tion S ystemP ow er S ource
1 A19 A
1H111D21E1
3 A
OFF
TAIL
HEAD
AUTO
LIGH
T CO
NTR
OL S
W
18 A 10 A 4 A 2 A 5 A
1
2
IF
1G6 1F13
II Right side ofthe cowl panel
1D6 1D1 1D7
13 A
1B8 1E3
EB : Left fender(w/o Daytime Running Light)IG : Left side of the cowl panel(w/ Daytime Running Light)
8 BC1
BJ Rear floor partitionpanel LH
A
B
C
D
E
F
G
H
I
J
K
L
M
N
Q
R
S
9 A 14 A
B 7
BU
CK
LE SW
LH
J23JU
NC
TION
CO
NN
ECTO
R
BC112
7 A8 A6 A21 A20 A
From Shift Lock
Control E
CU
<25–1>
<25–2>
L–Y
B–Y
L–B
B
G–W
L–Y
L–Y
L–Y
L–R
L–W
W–R
W
G–W
G–W
B–R
B–R
L–Y
L–B
B
G–W
L–Y
L–Y
L–Y
L–R
L–W
W–R
O
L–O
G–W
V
BR
–B
W
9 7 8
MIRE MIRB MIRS
1 8
1H6
9
MPX2 GSWO
R 6REMOTE CONTROL MIRROR SW
G–W
From S
top LightS
W<
8–3>
HRLY STPI P1 SLCK IG MPX1BECUB 6
BODY ECU NO. 2
A
AUTO GSW ALTL LF TAIL KSW GNDBLVL CLTS CLTB CLTE DBKL ILE
R
W–B
YY
Y–B
R–G
GR
–R
W–B
W–B
W–B
W–B
W–B
B–L
B–LW
–B
W–BW–B
A
A
4
1
314
A
A
A
A
A W–B
W–BA
A
W–B
J 6JUNCTIONCONNECTOR
J10JUNCTIONCONNECTOR
16
13
From C
enter Airbag
Sensor A
ssembly
<17–1>
To Daytim
e Running
Light Relay (M
ain )<
7–2>
From Light Failure
Sensor<
8–3>
See Illum
inationS
ystem<
9–1>
U 1
UN
LOC
K W
AR
NIN
G SW
J 9JU
NC
TION
CO
NN
ECTO
R
C14COMBINATION SW
114 3 2 12 7
J17JU
NC
TION
CO
NN
EC
TOR
B 1BR
AK
E FLUID
LEV
EL WA
RN
ING
SW
A30AUTOMATIC LIGHTCONTROL SENSOR
GG
A
PL–O
OG–W
G–W
G–W
15 A
HEAD
See HeadlightSystem<6–1><7–1>
17 A
FFOG
See Fog Light
System
<6–4>
11 A
ACANFrom
Clock<
18–4>
13 1H
TRLY
6
See Illum
inationS
ystem<
9–1>
5
See Fog LightSystem
<6–4>
G–O
G–Y
L
Y–R
V–R
LG–B
T H A EL
Y
A
From Engine ControlModule<4–12><5–12>
FFGO
CLTS CLTB CLTE
E M+ MSW
W
1
2
Left kick panel
W–B
J
5 6 7 8
1 GS 400 / GS 300 (Cont’ d) (Cont. next page)
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
A
16 IJ2
1
2
2
1
1
2
2
1
8 IC1
17 IJ2
S
2F4
2D9
2
1
BKQuarter panel LH
1
3 2
2H6
2D4
1
3 2
2H4
2D2
1
3 22
1
2
1
1
2
Q
R
10 IJ1
3 IJ1
24 F
27 D
28 D
11 F
Q
R
S
EN
GIN
E C
ON
TRO
L MO
DU
LE
11 B 13 A 2 B
8 IE1 17 IE1
(1UZ–FE)
(2JZ–GE)
(1UZ–FE)
(2JZ–GE)
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
W–R
L–W
L–R
L–Y
L–Y
L–Y
G–W
B
L–B
L–Y
B–R
B–R
G–W
G–W
G–W
L–O
W
O
L–Y L–Y L–Y
L–Y L–Y L–Y L–Y L–YL–YL–Y
L–Y
L–Y
L–Y
L–Y
L–YL–Y
L–Y
L–Y
L–Y
L–Y
L–Y
L–Y
G–W
B
L–B
L–Y
B–R
B–R
G–W
G–W
R–B
R–G
W–B
W–B
W–B
W–B
W–B
R
R
W–B
G
W–B
GG
G G
G
G G G G
W–BW–B W–B W–B W–B
R–B
R–G
A
W
GR
O
L–O
G–W
G–W
B–R
B–R
L–Y
L–B
B
G–W
L–Y
L–R
L–W
W–RL
LW
W
W
L–RWW
G–W
L
W G–W
516
8
7
6
2
W–B
R–B
R–G
W
(*1 )
(*2 )
(*1 )
M u ltip lex C ommun ica tion S ystem
S 6
STE
P LIG
HT R
H
S 5STEP
LIGH
T LH
I21IG
NITIO
N K
EYC
YLIN
DE
R LIG
HT
P 7
PE
RS
ON
AL LIGH
T
L 7LU
GG
AGE
CO
MP
AR
TMEN
T LIGH
T
J20JUNCTIONCONNECTOR
I25IN
TER
IOR
LIGH
T RE
AR
RH
I24IN
TER
IOR
LIGH
T RE
AR LH
V 8
VA
NITY
LIGH
T LH
V 9
VAN
ITY LIGH
T RH
G 5
GA
RA
GE D
OO
R O
PEN
ER
R–B
R–G
L–O
O
GR
C12 C13,
COMBINATION METER
A B A13A/C CONTROL ASSEMBLY
T 5TILT AN
DTE
LES
CO
PIC
EC
U
M 3
MU
LTI–DISP
LAY
* 1 : w/ LEXUS Navigation System* 2 : w/o LEXUS Navigation System
GR GR
FE
5E
7D
,
ON
OFF
DO
OR
1 3
2
TR–WR–W
R–W
D 8
DIO
DE
(Luggage Door
Com
partment O
pen Detection )
MPX1
MPX2
MPX2
MPX1
MPX1
MPX2
MPX+MPX–
GR
N 6NOISE FILTER(Stop Light)
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
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AM
9 10 11 12
1 GS 400 / GS 300 (Cont’ d) (Cont. next page)
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
3 A
A
B
C
D
E
F
G
H
I
J
K
L
M
S
R
Q
2B8 2E12G4
2D5 2G6 2F13
IIRight side ofthe cowl panel
IF Left kick panel
5 A 6 A 4 A
6 IL3 18 IL3 17 IL3
BM Quarterpanel RH
2
1
17 A
1J4
15ARADIONO. 2
15 A
1H10
GR
2F11 2E2
L 1LU
GG
AG
E CO
MP
AR
TME
NT
DO
OR
OP
ENE
R S
W
10 A2 A
3 IC316 IC1
R–W
1 2
13 A 12 A 1 A
N
O
2 IL1
18 A
6 BD1
1
2
1
4
12 BD1
BLRear floor partitionpanel RH
B 8
BU
CKLE
SW R
H
S18SE
AT B
ELT
WAR
NIN
G O
CC
UP
AN
TD
ETE
CTIO
N S
ENS
OR
W 5
WIR
ELES
S D
OO
RLO
CK E
CU
L 5LU
GG
AGE
CO
MP
AR
TMEN
TD
OO
R C
OU
RTE
SY S
WA
ND
OPE
NER
MO
TOR
J24JU
NC
TION
CO
NN
EC
TOR
21 A
1
P 4
PA
RK
ING
BRA
KE S
W
From HORNRelay<19–4>
2
1
9 A
EBLeft fender
E 9
EN
GIN
E H
OO
DC
OU
RTE
SY
SW
B
12543
A
B
D B
D
7 1
B
B
B
B
B
18
11
A
AA
A
HCTYPKBPBKLTR+ LGCY RSSIRDARCOTSWGND
BECUGSW ACC IG BZR BZR2 HORN
M u ltip lex C ommun ica tion S ystem
W
GR
O
L–O
G–W
G–W
B–R
B–R
L–Y
L–B
B
G–W
L–Y
L–R
L–W
W–R
W–B
R–B
R–G
W–R
L–W
L–R
G–W
G–W
B
L–B
B–R
B–R
G–W
L–O
B–R
B–RL–O
G–W
B–R
B–R
L–B
B
G–W
G–W
L–R
L–W
W–R
B–R
L–Y
GR
R–B
R–G
W–B
W
V–Y
LG–R
P LGLGP
LG–R
W–B
O
G–W
G–W
G–W
L–Y
GR
B–R
B–R
B–R
G–B
P–L
P–B
B–R
B–R
W–B
W–B
W–B
W–B
L–Y
W–B
W–B
R–G
R–B
LL
V–G
Y–B
W–B
W–B
W–B
W–B
W–B
B–L
B–L
B–L
G–W
J15JU
NC
TION
CO
NN
EC
TOR
J 7JUNCTION CONNECTOR
J13JU
NC
TION
CO
NN
ECTO
R
BUZZER
W 4WIRELESS DOORLOCK BUZZER
J 6JUNCTIONCONNECTOR
J10JU
NC
TION
CO
NN
ECTO
R
J22JUNCTIONCONNECTOR
B–O
23 A 24 A
See Electronically
Controlled Transm
issionand A
/T Indicator System
<12–5>
<13–5>
PWR SNOW
B 5
BODY ECU NO. 1
A
1
SH
P–B
2B9
2
T 1TH
EFT D
ETE
RR
EN
T HO
RN
Y–B
Y–B
From D
aytime R
unningLight R
elay (Main )
<7–2>
T
R–W
19 A
MPX1
M
3
4
7 A
M 7
MIR
RO
R R
ETRA
CTIO
N S
W
RET
P–G
R–W
AA
J17JUNCTIONCONNECTOR
W–B
W–B
W–B
J
13 14 15 16
1 GS 400 / GS 300 (Cont’ d) (Cont. next page)
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
BK Quarter panel LH
1
2
7 IC1
16 A22 A
5 IE2
B
B
2
A
20 A
2A1
20A P FR
DO
OR
20A P R
R D
OO
R
2E6
2F22G72H13
10 IK1 9 IB1
J20JUNCTIONCONNECTOR
VV
V
R 7
SEC
UR
ITYIN
DIC
ATO
R[R
HE
OS
TAT]
L 6LU
GG
AG
E C
OM
PAR
TME
NT
DO
OR
KE
Y U
NLO
CK
SW
A
B
C
D
E
F
G
H
I
J
25 A
To Hazard SW<10–4>
9 C
6 IB1
2 C
13 IB1
1 A
5 IB1 1 IB1
3 C
7 B
Y–G
WLSW
2
3 B
3
GR
–G
DT1 SC1
V–R
4
B9 6 A
5
LG–B
ML MUP
L–W
6
B5 6 B
7
L–R
AUTO DT2
GR
–R
11
B2 10 B
12
V–W
SC2 SC3
V
13
B11 1 B
14
GR
DT3 PWE
W–B
16
A13 7 A
17
LG–R
MUL MDN
L–B
18
B4
K
L
M
N
O
P
1015
14 C15 C16 A
1 3 5
MPX1 SIG BDR CPUB MSWE M1 M2
45
W–R
L–W
L–R
G–W
G–W
B
L–B
B–R
B–R
G–W
L–O
B–R
B–R
W–R
L–W
L–R
G–W
G–W
L–R
B–R
G–W
B–R
B–R
Y
L–B
R–Y
L–O
R–B
R–GR–B
R–G
R–Y
L–B
R–Y
L–O
R–B
R–G
L–O
B–R
L–B
G–W
BR
–W
P P–B
R–Y
R–Y
L–O
W–G
LG–B
LG–B
W–B
R–Y
L–BB L–R
L–O
B–R
L–B
G–W
M u ltip lex C ommun ica tion S ystem
BSUBPWSOBD2TKULIND
HAZ
B 5
BODY ECU NO. 1
A
J14JU
NC
TION
CO
NN
EC
TOR
P11POWER WINDOW MASTER SW
D22 D23,
DRIVER DOOR ECU
A B C, D24
G–W
D25DRIVING POSITIONMEMORY SW
MM
4 C
7
GR
(*3 )
(*3 )
(*3 )
(*3 )
* 3 : w/ Driving Position Memory
2F12
63
V
From HTRRelay<29–1>
From M
IRR
elay<24–3>W
–G
V
B
From E
ngineC
ontrol Module
<4–12>
<5–12>
E M1 M2 MRY
PWS
W/L DT1 SC1 L DU DA DT2 SC2 SC3 DT3 E UL DD
W/L2
LP
2H112D6
9
OFrom
Moon R
oofC
ontrol EC
U<
20–3>
HR DFG
MPX2
To Data Link
Connector 3
<4–5>
<5–5>
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
17 18 19 20
1 GS 400 / GS 300 (Cont’ d) (Cont. next page)
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
11 A 2 A 12 B 13 B 16 B 17 A 8 A 15 A 3 A 4 A 5 A
2 1 4 3 5
1 2 3 4 5 6
G R
W–G
W
BR
–B G–B
G–R
BR–B
GR
P–B
P–G
16 C 7 C 8 C 8 B 1 C 10 C
LG
LG–R
LG–B R Y–R
B–O
13 C
BR
12 C
IF Left kick panel
4 IB1
A
B
C
D
E
F
G
H
I
211 2
14 B 15 B 10 A 12 A 18 C
K
L
M u ltip lex C ommun ica tion S ystem
7 C 16 C 6 C1 C 18 A
5 IK1 7 IK1
2 A 3 A
13 IK1 1 IK17 IB1
W–R
L–W
L–R
G–W
G–W
L–R
B–R
G–W
B–R
Y
L–B
R–Y
L–O
R–B
R–G
W–R
L–W
L–R
G–W
L–R
B–R
G–W
B–R
O
R–B
R–G
R–WR–YR–GW–B
W–B
L–B
L–O
LG–R
W–B
LG–B
R–Y
L–O
L–B
W–B
W–B
G–W
B–R
O
4
1 2 3
F11 F12,
FRONT PASSENGER DOOR ECU
A BD22 D23,
DRIVER DOOR ECU
A B
BDR MPX2 MUL DLE MLGNDDE2HSSRVSSRDVCDMVRDM+RDMHRKULKLLSWLSWEA+A–SGNDPLSLMTDN UP
JY
CTYE CTY CTYB CYL MPX2 SIG CPUB
B–R
15 IC3
O
W–B
R–G
R–Y
R–W
D24, C
D13DOOR COURTESY SWFRONT LH
D 9DOOR COURTESY LIGHTFRONT LH
P12PO
WER
WIN
DO
W M
OTO
RFR
ON
T LH
D18
DO
OR
LOC
K M
OTO
R, D
OO
R KE
YLO
CK
AN
D U
NLO
CK
SW
AND
DO
OR
LOC
K D
ETECTIO
N S
W FR
ON
T LH
1 A
4 B
2 A
5 B
6 A
6 B
8 A 9 A 10 A 11 A
(*4)
A
A
J10JU
NC
TION
CO
NN
EC
TOR
J 6JUNCTIONCONNECTOR
A
C, F13
O
B–R
G–W
D17DOOR LOCK CONTROLSW RH
* 4 : w/o Driving Position Memory* 5 : w/ Retraction
UL E L
B
M
UN
LOC
K
LOC
K
LOC
KD
ETEC
TION
MH COM MV VC VSR HSR E1
M
* 3 : w/ Driving Position Memory
R16 A , B
REMOTE CONTROL MIRROR LH
9 A
MR+
5 A
MR
G–B
(*5 )
A
MR–
18
14 A (*3)
MF
L–R
(*5 )
J
21 22 23 24
1 GS 400 / GS 300 (Cont’ d) (Cont. next page)
A
B
C
D
E
F
G
H
I
J
K
L
11 C 2 C 12 B 13 B 16 B 5 C 4 C 3 C 15 C 17 C 8 C
1 2 4 3 5
1 2 3 4 5 6
G R
W–G
W
BR
–W
P–G
P–B
G
BR–B
G–B
G–R
16 A 7 A 8 A 8 B 1 A 10 A
LG
LG–R
LG–B O B–O
Y–R
13 A
BR
A
B4
1 A 6 A
5 B
2 8 A
PE2HSSRVSSRPVCPMVRPM+RPMHRA+A–LSWELSWKLKULSGNDPLSLMTDN UP
B6
9 A 10 A 11 A
(*4)
(*3)
13 C 4 B 6 B 5 B
2 4 5 6
W–B
L–B
L–R
L–W
MUPAUTOPWE MDN
A
B
C
D
E
F
G
H
I
9 A
6 IK1
J
16 IL1
R–W
D10DOOR COURTESY LIGHTFRONT RH
D14DOOR COURTESY SWFRONT RH
R–Y
1 21 2
14 B B15 10 C 12 C
CTY CYLCTYE CTYB
W–B R–G R–Y
W–B
R–G
R–W
2 IB1
2F8
2E10 2H9
REMOTE CONTROL MIRROR RH
, R17 A BD19DOOR LOCK MOTOR, DOOR KEY LOCK AND UNLOCK SWAND DOOR LOCK DETECTION SW FRONT RHIK1
9
3
K
L
M
N
P 8POWER WINDOW CONTROLSW FRONT RH J17
JUN
CTIO
NC
ON
NE
CTO
R
4 IK1
12 A
II Right side of the cowl panel
A
A
B B B
W–B
W–B
W–B
W–B
Y
Y
YY
Y Y
R–B
R–G
Y
W–R
L–W
L–R
G–W
L–R
B–R
G–W
B–R
O
F11 F12,
FRONT PASSENGER DOOR ECU
A B F13, C
W–R
L–W
L–R
G–W
L–R
B–R
G–W
B–R
O
O
OO
MPX1
J13JUNCTION CONNECTOR
Y
GND
M u ltip lex C ommun ica tion S ystem
Y
Y
R–B
R–G
* 3 : w/ Driving Position Memory* 4 : w/o Driving Position Memory
E D A U
PCT
MU
NLO
CK
LOC
K
LOC
KD
ETECTIO
N
MH COM MV VC VSR HSR E1
M
P13POWER WINDOW MOTOR FRONT RH
* 5 : w/ Retraction
9 C
R–G
5 A
MR+
MR
18 C
L
MR–
14 A
MF
(*5 )
(*5 )
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
25 26 27 28
1 GS 400 / GS 300 (Cont’ d) (Cont. next page)
A
B
C
D
E
F
G
H
I
J
K
L
M
N
M u ltip lex C ommun ica tion S ystem
8 BA1 3 BB16 BA1 11 BA1 2 BA1
A
A A
5 BA1 4 BA1
14 IC3 13 IC1
2 1
21
11 BB1 2 BB1 6 BB1
5 15 9 14 8 18
O
G–W
B–R
L–R
B–R
L–R
R–W
W–B
O B–R
L–R
G–W
151494
O
B–R
G–W
B–R
L–R
G–W
L–R
L–W
W–R
B–R
O
G–W
O B–R
L–R
G–W
Y
R–B
R–G
11 12
Y R–B
R–B
Y–G
R–B
Y
PCT1 RRLP
MPX1 CPUB SIG BDR CTY CTYE MPX2 SIG BDR CPUB
21 10 23 22 24
65432
W–B
Y–R
L–B
L–R
L–W
PWE PCTO MDN AUTO MUP
1 13 17 19
4321
G–B
G–R
G
BR–B
A– A+ LSW LSWE
BJRear floor partition panel LH
9 BA1
W–B
W–B
W–B
25
GND
B–R
4
L–O
MPX2
W–B
R–Y
5 BB1 4 BB1
5 IL3
2 1
188
11 12
Y
R–G
R–GY
R–G
PCT1 RRLP
CTY CTYE
21 10 23 22 24
65432
W–B
Y–R
L–B
L–R
L–W
PWE PCTO MDN AUTO MUP
19 17 1 13
4321
BR–B
G G–B
G–R
LSWE LSW A– A+
BLRear floor partition panel RH
9 BB1
W–B
W–B
W–B
25
GND
BM Quarter panel RH
10 BB1
20
A
SEL1
W–B
W–B
A
B
C
D
E
8 BB1
15 IL3
5
L–OL–O
L–O
MPX1
D15DOOR COURTESYSW REAR LH
D11DOOR COURTESYLIGHT REAR LH
P 9POWER WINDOW CONTROL SW REAR LH
D20DOOR LOCK MOTOR AND DOORLOCK DETECTION SW REAR LH
L–O
B–R
L–W
W–R
D16DOOR COURTESY SWREAR RH
P10POWER WINDOW CONTROL SW REAR RH
D21DOOR LOCK MOTOR AND DOORLOCK DETECTION SW REAR RH
R13REAR DOOR RH ECU
R12REAR DOOR LH ECU
J22JUNCTIONCONNECTOR
B–R
W–B
16
WHE1
From A
shtrayIllum
inationR
ear LH<
9–1>
W–B
16
WHE1
From A
shtrayIllum
inationR
ear RH
<9–2>
M
E PCT D A UE PCT D A U
M
LOC
KD
ETE
CTIO
N
LOC
KD
ETECTIO
N
Y
O
J 8JUNCTIONCONNECTOR
2
L–W
CTYB
7
R
CYL
POWER WINDOW MOTORREAR LH
2
21
D12DOOR COURTESYLIGHT REAR RH
L–W
CTYB
7
R–W
CYL
UP DN LMT PLS SGND
67213 72
DN SGNDPLS
6
UP LMT
POWER WINDOW MOTORREAR RH
31
M M
J
29 30 31 32
1 GS 400 / GS 300 (Cont’ d)
A
B
C
D
E
M u ltip lex C ommun ica tion S ystem
11 B 10 B
10 BC1 3 BC1
2 IC2
3 BA1
8 B 9 B
7 BC1 4 BC1
17 IC1
C
C
2
1
M
2 A1 A
P23PO
WE
R SE
AT MO
TOR
(Driver’
s Seat
Reclining C
ontrol )
L–RL
W–R
B–R
L–OOL–Y
L–O
B–R
W–R
W–R
W–R
L
2
1
M
6 A5 A
P22
PO
WER
SE
AT MO
TOR
(Driver’
s Seat
Rear V
ertical Control )
Y–G
Y–R
Y–R
1
2
M
10 A9 A
P20
PO
WER
SE
AT MO
TOR
(Driver’
s Seat
Front Vertical C
ontrol )
W–R
W–G
W–G
1
2
M
4 A3 A
P24
PO
WER
SEA
T MO
TOR
(Driver’
s Seat
Slide C
ontrol )
BB–R
B–R
22 B
Y–B
2
RCLR
21 B
Y–R
3
RCLF
19 B
L–Y
10
FUP
16 B
L–B
6
SLDR
18 B
Y
8
LDWN
17 B
Y–G
7
LUP
15 B
L
9
SLDF
7 B
L–R
5
FDWN
5 B
1
SSRR
6 B
V
3
PVCC
4 B
Y–G
1
SSRL
3
3 B
LG–R
1
SSFV
3
14 B
LG
1
SSRS
3
2 2 2 2
BK Quarter panel LH
11 BC1
V–W
V Y–G V
LG–R
V LG V
13 B
M2 1
7 A
BJ Rear floor partition panel LH
12 BC1
8 A
1 BC1
B
A
1 3 2
B
A
4
B
A
P18 P19,
POWER SEAT ECU
A B
A
L–O
L–O
B–R
L–W
W–R
V V V
L–WL–W
L–W
L–W
L–B
W–B
L–O
W–B
BR
W–B
W–B
BR
BR
BR
BR
BR
BR1
BR BR BR BR BR
L–O
W–B
L–O
L–O
B–R
J18JUNCTIONCONNECTOR
(*4)
(*3 )
(*3 )(*3 )
(*3 )
SGND GND
+BSLD+SLD–FRV+FRV–LFT+LFT–RCL+RCL–SYSBIGMPX1MPX2
P16POWER SEAT CONTROL SW(Driver’ s Seat)
P32
PO
WE
R SE
AT P
OSITIO
N SE
NSO
R(D
river’s S
eat Reclining
Control )
P31PO
WE
R S
EAT P
OS
ITION
SEN
SO
R(D
river’s S
eat Rear
Vertical Control )
P30PO
WE
R S
EAT P
OS
ITION
SEN
SO
R(D
river’s S
eat Front Vertical C
ontrol )
P33
PO
WER
SE
AT POS
ITION
SEN
SO
R(D
river’s Seat S
lide Control )
L 8LU
MB
AR SU
PP
OR
TC
ON
TRO
L SW
(Driver’
s Seat )
P21POWER SEAT MOTOR(Driver’ s Seat Lumbar Support Control)
J23JU
NC
TION
CO
NN
ECTO
R
J20JUNCTIONCONNECTOR
J23JUNCTIONCONNECTOR
* 3 : w/ Driving Position Memory* 4 : w/o Driving Position Memory
RCLR RCLF FUP SLDR LDWN LUP SLDF FDWN
E
REA
R
FRO
NT
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
1 2 3 4
2 GS 400 / GS 300
Power Source Starting and Ignition (1UZ–FE)
9 IA1
1
15A A
M2
1
40A M
AIN
2
1
3
5
1
1 1
8 II4
8 EA2
1 EC1
1 A1B
EE
7 IA2
A B
C A C A
4 EA3
5 EA3
1F1
5ASTARTER
1F10
A
A
6 EA2
5
6
P
N
1
ED
W–R
B
B–W
B–L
B–L
B
W–R
1 1
2 2
B–L
B–L B–R
BB
B
W–B
W–B
B
BB
Y–B
Y–B
S 1 S 2,
STARTER
A B
JUN
CTIO
NC
ON
NEC
TOR
BA
J 3J 4
,
B–W
B–W
B–W BR BR
B–W B–W B–WB–W B–W
BR BR BR BR
B–WB–W
B–W
BR
BR
BR
B–W
BR
B–W
BR
B–W
BR
B–W
2 332323232
4141414141414141
2 3 2 3 2 3
BR
B–W
BR
B–W
BR
B–W
B–W
G–B
B–R
G–B
R–L
G–B
Y–R
G–B
Y–G R
R–W R L–Y R L–W R
R
L–W
L–Y
R–W
Y–G
G–B
Y–R
R–L
B–R
I22IGNITION SW J15
JUNCTIONCONNECTOR
P 1PA
RK
/NE
UTR
ALPO
SITIO
N S
W
STARTERRELAY
BBTo Engine C
ontrolM
odule<4–10>
BATTERY
N 1
NO
ISE FILTE
R(Ignition )
I 2IGN
ITION
CO
IL AN
D IG
NITER
NO
. 1
I 5IGN
ITION
CO
IL AN
D IG
NITER
NO
. 4
I 7IGN
ITION
CO
IL AN
D IG
NITER
NO
. 6
I 8IGN
ITION
CO
IL AN
D IG
NITE
R N
O. 7
I 3IGN
ITION
CO
IL AN
D IG
NITER
NO
. 2
I 4IGN
ITION
CO
IL AN
D IG
NITER
NO
. 3
I 6IGN
ITION
CO
IL AN
D IG
NITER
NO
. 5
I 9IGN
ITION
CO
IL AN
D IG
NITER
NO
. 8
RRG–BG–B
To Engine Control Module<4–9><4–10>
BR
7 IG2
ST2
AM2 6
8
Under the ABS &TRAC & VSC actuator
LH bank of the cylinder head
A
A
J 5JU
NC
TION
CO
NN
ECTO
R
W–B
J
1 2 3 4
3 GS 400 / GS 300
ChargingStarting and Ignition (2JZ–GE)Power Source
11 1 1
1
1K1
1J3
9 IA1
2
7
ACC
IG1
IG2
ST2
AM1 4
6
8
AM2
2
1
3
5
1
1 1
8 II4
8 EA2
1 A1B
EE
7 IA2
A B
C A C A
5ASTARTER
1F1
5 EA3
1F10
5
6
P
N
4 EA3
1
2
1
2
1
2
1
6 EA2
A
A
C
C
ED
1 A
B2
B
3B
B
L
IG
S
C (*1)
B (*2)
9 EA3 7 EA1
B
B
1H4
10AGAUGE
1J1
16 IA2
W–L
B–L
W–L
W–L
B–L
W W–R
W–R
B–L
B–L
B–W
W–L
B–L
B–Y
B–W
B
B
1
2
2 2 2 2
1 1 1 1
BB
B
W–B
BB
BB
B
B–L
B–L
B–W
B–W
B–W
B–W
B–W
B–W
B–W
B–L
B–W B–W
B–Y
G–B
B–WWBB–R
B B–Y
B–L
B–R
BR
BR
4 7 6 5
1 2 10 9 8
IGF IN1 IN2 IN3 GND
C2 C3 C1 +B TAC
B–L
P–L
1
W–L
R–L
W–L
B–Y
R–L
R–L
R–L
W–L
C (*1)
B (*2)
I22IGNITION SW
40A A
M1
STARTERRELAY
BATTERYS 1 S 2,
STARTER
A B
To Engine C
ontrolM
odule<5–10>
JUN
CTIO
NC
ON
NE
CTO
R
BA
J 3J 4
,
P 1
PA
RK
/NE
UTR
AL
PO
SITION
SW
5A ALT–S
120A ALT
15A A
M2
40A M
AIN
J15JUNCTIONCONNECTOR
To Tachometer
[Com
b. Meter]
<28–3>
J17JUNCTIONCONNECTOR
J 1JUNCTIONCONNECTOR
G 1 G 2,
GENERATOR
A B
To Engine ControlModule<5–9>
N 1
NO
ISE
FILTER
(Ignition )
I10IG
NITIO
N C
OIL N
O. 1
I11IG
NITIO
N C
OIL N
O. 2
I12IG
NITIO
N C
OIL N
O. 3
Under the ABS &TRAC & VSC actuator
Rear side of the intake manifold
3
J 1JUNCTIONCONNECTOR
I 1IGNITER
2 EA3
B–Y
2 EA4
26 F (*1)
26 A (*2)
27 D (*2)
24 F (*1)
P–L
P–L(*1 )
(*1 )
(*2 )
See Multiplex
Com
munication S
ystem<
1–8>
EN
GIN
E C
ON
TRO
L MO
DU
LE
DA
E 2
E 5
,
* 1 : 1UZ–FE* 2 : 2JZ–GE
FE
7,
RL
MPX2
A
A
W–B
J 5JU
NC
TION
CO
NN
ECTO
R
C
B–Y
To Data Link
Connector 1
<5–8>
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
1 2 3 4
4 GS 400 / GS 300 (Cont. next page)
1
15A ETCS
25A E
FI
120A ALT
15A AM
2
1 1 1 1
1K1
7. 5A O
BD
40A AM
1
1H12 1J3
2
ACC
IG1
IG2
ST2
AM1 4
67 AM2
9 IA1
11
2
1
3
5
1 1
1 II1
8 IC2
5
4
M
EEUnder the ABS &TRAC & VSC actuator
BKQuarter panel LH BJ Rear floorpartition panel LH
1J1
10AGAUGE
1D4
1 A
12 B
6 EA3
2F13
2G6
IIRight side ofthe cowl panel
ED LH bank of the cylinder head
1J6
5AIGN
1G7
K
M
L
B–L
W–R
W
B–Y
B–Y
L–Y
W–R
W–L
B
B–Y
B–Y
L–Y
W–B
B–R
B–R
B–R
B–R
W–B
R–L
B
W–B B
R W
W–B
W–B
W–B
BR
B–O
B–O
B–Y
B–Y
B–W
B–Y
B–R
B–R
B–W B–W
B–W
B–Y
L–Y
B–Y
W–B
L–R
L–W
1111
4 5 7 E
6 5 9 8
7 10
A
E
16
AA
A
A
A
A
FPCDIEFP–
CG SG SIL
BAT
+BFP+
A
B
L–Y
B–L
B–R
B–R
B–R
B–O
B–L
B–R
GR
E ngine C ontro l and Eng ine Immob ilise r S ys tem (1UZ –FE )P ow er Source
BATTERY
2222
I22IGNITION SW
EFIRELAY
F15FU
EL PU
MP
F16FU
EL PU
MP
CO
NTR
OL E
CU
J20JUNCTIONCONNECTOR
MA
LFUN
CTIO
NIN
DIC
ATO
R LA
MP
[CO
MB
. ME
TER
] BA
C12
C13
,
J15JUNCTIONCONNECTOR
B–Y
B
D 4
DATA
LINK
CO
NN
EC
TOR
3
J10JU
NC
TION
CO
NN
EC
TOR
J14JU
NC
TION
CO
NN
EC
TOR
B–Y
BR
BR
CB–W
DB–R
EB–Y
B–OF
JW
B–RI
HB–R
GGR
OW–BW–B
BRN
A
W–B
2
1
A
A
J 5JU
NC
TION
CO
NN
ECTO
R
W–B
J
5 6 7 8
4 GS 400 / GS 300 (Cont’ d) (Cont. next page)
E ng ine C on trol and E ngine Immob ilise r S ys tem (1U Z–F E )
A
D
K
L
M
18 B
BR
L–Y
2
1
14 B 22 D
5 IC3
17 IC3
20 B 13 B 2 B 9 B
EA23
18 IC310 EA2
E 8
EN
GIN
E C
OO
LAN
T TEM
P. SEN
SOR
T 3TH
RO
TTLE P
OS
ITION
SE
NS
OR
V10VA
PO
R P
RE
SS
UR
ESE
NSO
R
21 B
2
1
2
1
2
1
2
1
2
1
2
1
5 B 6 B 1 A 2 A 3 A 4 A
7 EA2
I13IN
JEC
TOR
NO
. 1
I14IN
JEC
TOR
NO
. 2
I15IN
JEC
TOR
NO
. 3
I16IN
JEC
TOR
NO
. 4
I17IN
JEC
TOR
NO
. 5
I18IN
JEC
TOR
NO
. 6
16 E 8 E
B A B A
B B B B
9 EA2
27 D 7 D
F A F A
D B D B
ECRH bank of the cylinder head
7 EA3
18 D 8 D 11 B 3 B 12 B 4 B11 E
J 9JU
NC
TION
CO
NN
EC
TOR
JUN
CTIO
NC
ON
NEC
TOR
BA
J 3J 4
,
J11JUNCTIONCONNECTOR
J 9JUNCTIONCONNECTOR
H21
HE
ATED O
XYG
EN
SE
NS
OR
(Bank 2
Sensor 2 )
JUN
CTIO
N C
ON
NE
CTO
R
BA
J 3J 4
,
H20
HE
ATED O
XYG
EN
SEN
SOR
(Bank 1 Sensor 2 )
H14
HE
ATED O
XYG
EN
SEN
SOR
(Bank 2 Sensor 1 )
H12
HE
ATED O
XYG
EN
SEN
SOR
(Bank 1 Sensor 1 )
12 EA1
5 D
D 1
DA
TA LIN
KC
ON
NE
CTO
R 1
A
B
(*1)
(*1)
E 5 E 6,
ENGINE CONTROLMODULE
D E
E 2 E 3, A B E 4, C , R–L
WRL
B–RY
B–W
B–W
B–W
B–W
B–W
B–W
B–W
L–YB
R
L–R
L–Y
L–Y
Y–B
L–W
L–YL–Y
R–B
L–B
B–R
BR
BR BR
BR
BR
BR BR BR
L–R
BR
B–W
B–W B–W B–W B–W
L–Y
L–Y L–Y
SIL +B +B1 OXR2 HTR2 OXL2 HTL2 OXR1 HTR OXL1 HTL
E2 THW VTA2 VTA VC VPA VPA2 PTNK #10 #20 #30 #40 #50 #60
OX HT
OX HT
OX HT OX HT E1
+B E1
E1 +B +B E1 +B E1 +B TC
3 2 1 2 1 4 2
1334
3 1
C
A A E E
3 1 3 1 3 1 3
1112424224EEA
42
CD
D
WW
B–R
B–R
B–R
(*1 )
(*1 )
B–R
BR
R GR
–B
W GR
BRBR
BR
BR
B–R
B–R
BR
B–R
BR
BR
Y–G
B–R
B–R
(*1)
(*1)
B–R
BR
B–R B–R B–R
BR
B–R
BR
PB–R
W P–B
P–B
P
B R–Y
J 9JU
NC
TION
CO
NN
EC
TOR
BR
B–R
B–R
(* 1)(*1)
TC
CBR
BRD
6
6 E
7 IE1 IC3
2
1
19 IC3 7 IC3
10 D 5 E 4 E 9 A
W TPC FPC DI ME01
BR
B–R
B–L
W–R
GR
–R
W–R
GR
B–L
B–R
V11
VSV
(Vapor
Pressure Sensor )
IA26
10 E
15 IA2 3 II4
1 E 7 E
2
1
1
2
29 A 7 B 10 B 19 B 22 B
THAEVGVGPRGACIS+BMBATTMREL
B–Y
B–Y
V–Y
B–L
B–Y
R–L
GR
W–R
BR
B–R
B–R
B–R
B–Y
B–Y
L–Y
B–RB–R
M 1
MAS
S A
IR FLO
W M
ETE
R
V 3
VS
V (EV
AP )
V 2
VS
V (ACIS
)
135
24
VG E2G THA
+B E2
BB–Y
CB–W
EB–Y
F
B–R
9 E
IGSW
B–O
N
J
I
H
G
B–R
B–R
W
B–L
B–R
B–R
BR
A E
B17
BR
E1
B–W
2
1
B–W
5 A
I19IN
JEC
TOR
NO
. 7G
#70 #80
I20IN
JEC
TOR
NO
. 8B
6 A
1
B–W
2
A10ACCELERATORPEDAL POSITIONSENSOR
B–W
D
From C
enterAirbagSensorAssem
bly<
17–3>
P–B
LG
5
AB
C
W
From Center AirbagSensor Assembly<17–3>
E 7, F
BR
W–BF
B–RE
A
OW–B
B–R
W–B
E2
VPA1 VPA2 VC
VCC E2
PTNK
* 1 : Shielded
B–R
B–R B–R
C
C
From B
odyE
CU
No. 1
<1–13>
From A
BS
&TR
AC
& V
SCE
CU
<16–3>
W–G
W–G
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
9 10 11 12
4 GS 400 / GS 300 (Cont’ d)
A
B
1 2 2 1
23 A 22 A 10 A
NE+ NE– G2
LW Y
C 5CRANKSHAFTPOSITION SENSOR
C 1CAMSHAFT POSITIONSENSOR
1 2
21 A 31 A 1 B 26 D 4 F
ECRH bank of the cylinder head EBLeftfender
E01 E02 E03 EC EOM
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
T 2THROTTLE CONTROL MOTOR
C 4CAMSHAFT TIMINGOIL CONTROL VALVERH
11 F 24 F
MPX1 MPX2
E ng ine C on trol and E ngine Immob ilise r S ys tem (1U Z–F E )
E 2 E 3,
ENGINE CONTROL MODULE
A B E 4, C
13 DA13A27A1611 A
ACMGIGT3IGF1IGT6IGT1
From A
/C C
OM
P Relay
<29–2>
L–O
EB110
From Ignition Coil and Igniter<2–2><2–3><2–4>
L–O
R–W
G–B
R–L
Y–B
BR
(*1)
(*1)
A
A
A
A
A
A
A
A (*1)
(*1)
(*1)
(*1)
A18 A17
1
K 1KN
OC
K S
ENS
OR
1
K 2KN
OC
K S
ENS
OR
2
1
LH bank of the cylinder headED
GR
B
BR
BR
KNKL KNKR
C
BRD
D17
STA
From P
ark/Neutral
Position SW
<2–2>
B
A15A12A2514 A
IGT5IGT2IGT7IGT4
L–Y
Y–G
Y–R
B–R
A26
IGT8
L–W
A28
IGF2
R
(*1) (*1)
1 2
C 3CAMSHAFT TIMINGOIL CONTROL VALVELH
12 C 8 B 8 A 7 A 30 A
3 4 2 1
G–R
Y–R G R (*1 )
CL+ CL– M+ M– GE01
1 2
15 B 23 B
VVR+ VVR–
LY
V 5VVT SENSOR RH
1 2
16 B 24 B
VVL+ VVL–
GR
V 4VVT SENSOR LH
A
A (*1)
(*1)
(*1) (*1)
2 EC1 3 EC1
BGR
See M
ultiplexC
omm
unication System
<1–8>
20 E 21 E 22 E
To ABS
& TR
AC
& V
SC E
CU
<16–4>
G–RLV
TRC– ENG– NEO
E13
TRC+
P
E14
ENG+
LG
From AB
S &
TRA
C &
VS
C E
CU
<16–4>
D6
STP
From S
top LightS
W<
8–3>G
–W
D16
TACH
To Com
binationM
eter<28–3>
B–Y
E 5, D E 6, E E 7, F
21 F
LCKI
To A/C M
agnetic Clutch
and Lock Sensor<
29–2>G
RG
R
11 EA4
J 2JUNCTIONCONNECTOR
25 D 3 E
2
1 1
10 EA4 9 EA4
BW L Y R G Y L
BR
R–W
R–W
BR
BR
MOL MOPS
L–BL–B
E10
EN
GIN
E O
ILLE
VEL S
EN
SO
R
O 2
OIL P
RE
SSU
RE S
W
3 F 20 F
V Y
IMLD KSW
To Security Indicator[R
heostat]<1–13>
To Unlock W
arningS
W<
1–3>
* 1 : Shielded
20 A 19 D 28 D
5 EA41 EA4
OCV+ OCV– OCR+ OCR–
Y–R
W–G
W–G
Y–R
L–B
W–R
17 F 19 F 18 F
4 3 2
1 5
G–B
B–W
L–R
TXCT RXCK CODE
TXCT RXCK CODE
+B GND
T 6TR
AN
SPO
ND
ER
KEY
AM
PLIFIE
R
19 A
W–BF
B–RE
B–R
W–B
OIL LE
VEL
OIL TE
MP.
1 2
ANT1 ANT2
TRANSPONDERKEY COIL
MEMO
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
1 2 3 4
5 GS 400 / GS 300 (Cont. next page)
1
15A ETCS
25A E
FI
120A ALT
15A AM
2
1 1 1 1
1K1
7. 5A O
BD
40A AM
1
1H12 1J3
2
ACC
IG1
IG2
ST2
AM1 4
67 AM2
9 IA1
11
2
1
3
5
1 1
1 II1
8 IC2
5
4
M
EEUnder the ABS &TRAC & VSC actuator
BKQuarter panel LH BJ Rear floorpartition panel LH
1J1
10AGAUGE
1D4
1 A
12 B
6 EA3
2F13
2G6
IIRight side ofthe cowl panel
ED Rear side of theintake manifold
1J6
5AIGN
1G7
K
M
L
B–L
W–R
W
B–Y
B–Y
L–Y
W–R
W–L
B
B–Y
B–Y
L–Y
W–B
B–R
B–R
B–R
B–R
W–B
R–L
BW
–B
BR W
W–B
W–B
W–B
BR
B–O
B–O
B–Y
B–Y
B–W
B–Y
B–R
B–R
B–W B–W
B–W
B–Y
L–Y
B–Y
W–B
L–R
L–W
1111
4 5 7
E
6 5 9 8
7 10
A
E
16
AA
A
A
A
A
FPCDIEFP–
CG SG SIL
BAT
+BFP+
A
B
L–Y
B–L
B–R
B–R
B–R
B–O
B–L
B–R
GR
E ng ine C on tro l and E ngine Immobilise r S ys tem (2JZ– G E )P ow er Source
BATTERY
2222
I22IGNITION SW
EFIRELAY
F15FU
EL PU
MP
F16FU
EL PU
MP
CO
NTR
OL E
CU
J20JUNCTIONCONNECTOR
MA
LFUN
CTIO
NIN
DIC
ATO
R LA
MP
[CO
MB
. ME
TER
] BA
C12
C13
,
J15JUNCTIONCONNECTOR
B–Y
B
D 4
DA
TA LIN
KC
ON
NE
CTO
R 3
J10JU
NC
TION
CO
NN
EC
TOR
J14JU
NC
TION
CO
NN
EC
TOR
B–Y
BR
BR
CB–W
DB–R
EB–Y
B–OF
JW
B–RI
HB–R
GGR
W–B
BR
W–BO
W
BRN
A
W–B
2
1
A
A
J 5JU
NC
TION
CO
NN
ECTO
RW
–B
J
5 6 7 8
5 GS 400 / GS 300 (Cont’ d) (Cont. next page)
E ngine Control and E ng ine Immob iliser S ystem (2JZ–G E )
A
D
K
L
M
18 B
BR
L–Y
2
1
14 B 18 D
5 IC3
17 IC3
24 B 23 B 2 B 16 B
EA23
18 IC310 EA2
E 8EN
GIN
E CO
OLA
NT
TEM
P. SE
NSO
R
T 3TH
RO
TTLE PO
SITIO
NS
EN
SO
R
A10
AC
CE
LERATO
RP
ED
AL PO
SITIO
NS
EN
SO
R
V10VA
PO
R P
RE
SS
UR
ESE
NSO
R15 B
1
2
1
2
1
2
1
2
1
2
1
2
5 B 6 B 1 A 2 A 3 A 4 A
7 EA2
I13IN
JEC
TOR
NO
. 1
I14IN
JEC
TOR
NO
. 2
I15IN
JEC
TOR
NO
. 3
I16IN
JEC
TOR
NO
. 4
I17IN
JEC
TOR
NO
. 5
I18IN
JEC
TOR
NO
. 6
16 E 8 E
B A B A
B B B B
9 EA2
24 F 25 F
F A F A
D B D B
EC Front side of theintake manifold
7 EA3
8 D 26 F
10 EA4 3 EA411 EA4
11 B 3 B 12 B 4 B11 E
J 9JU
NC
TION
CO
NN
EC
TOR
JUN
CTIO
N C
ON
NE
CTO
R
BA
J 3J 4
,
J11JUNCTIONCONNECTOR
J 9JUNCTIONCONNECTOR
H21
HE
ATE
D O
XYG
EN
SEN
SOR
(Bank 2
Sensor 2 )
JUN
CTIO
N C
ON
NE
CTO
R
BA
J 3J 4
,
H13
HEA
TED
OXY
GEN
SE
NS
OR
(Bank 1 S
ensor 2 )
H14
HEA
TED
OXY
GEN
SE
NS
OR
(Bank 2 S
ensor 1 )
H12
HE
ATE
D O
XY
GE
N S
ENS
OR
(Bank 1 S
ensor 1 ) 12 EA1
5 D
D 1
DATA LIN
K C
ON
NE
CTO
R 1
A
B
(*1)
(*1)
E 6 E 7,
ENGINE CONTROL MODULE
E F
E 2 E 3, A B , , R–L
WRL
B–WY
B–W
B–W
B–W
B–W
B–W
B–W
B–W
L–YB
R
L–R
L–Y
L–Y
L–RL
L–YL–Y
Y–G
Y–R
B–R
BR
BR BR
BR
BR
BR BR BR
L–R
BR
B–W
B–W B–W B–W B–W
L–Y
L–Y L–Y
SIL +B B2 OX2B HT2B OX1B HT1B OX2A HT2A OX1A HT1A
E2 THW VTA2 VTA VC VPA VPA2 PTNK #10 #20 #30 #40 #50 #60
OX HT
OX HT
OX HT OX HT E1
+B E1
+B E1 +B E1 +B E1 +B TC
3 2 1 2 1 42
133
4
3 1C
A A E E 3 1 3 1 3 1 3
1112424242
EEA
42
C D
D
WW
B–R
B–R
B–R
(*1 )
(*1 )
B–R
BR
R GR
–B
W GR
GR
W
BR
BR
BR
BR
B–R
BR
B–R
BR
B–R
BR
B RYW
BR
R
B–R
B–R
(*1)
(*1)
B–R
BR
B–R B–R B–R
BR
B–R B–R
BR
B–R
BR
PB–R
B
P–BP–B
P
W Y
J 9JU
NC
TION
CO
NN
EC
TOR
BR
B–R
B–R
(*1)(*1)
(*1 )
TC
BRD
BRE
6
6 E
7 IE1 IC3
2
1
19 IC3 7 IC3
13 F 5 E 4 E 9 A
W TPC FPC DI ME01
BR
B–R
B–L
W–R
GR
–R
W–R
GR
B–L
B–R
V11
VSV
(Vapor
Pressure Sensor )
IA26
10 E
15 IA2 3 II4
1 E 7 E
1
2
2
1
5 A 7 B 10 B 19 B 22 B
THAEVGVGPRGACISBMBATTMREL
B–Y
B–Y
V–Y
B–L
B–Y
R–L
GR
W–R
BR
B–R
B–R
B–R
B–Y
B–Y
L–Y
B–RB–R
M 1
MAS
S AIR
FLOW
ME
TER
V 3VS
V(E
VAP
)
V 2
VSV
(AC
IS)
135
24
VG E2G THA
+B E2
BB–Y
CB–W
EB–Y
FB–O
B–R
9 E
IGSW
B–O
N
J
I
H
GGR
B–R
B–R
W
B–L
B–R
B–R
BR
C
W
From Center Airbag SensorAssembly<17–3>
D
P–B
AB
5
LG
FromC
enterAirbagSensorAssem
bly<
17–3>
B–RF
W–BGO
W–B
A
B–R
B–R
W–B
E2
VPA1 VPA2 VC
VCC E2
PTNK
E 5 D
* 1 : Shielded
C(*1)
OX1
4
B
IG–
19
B–Y
From Igniter<3–3>
C
C
From B
odyE
CU
No. 1
<1–13>
From A
BS
&TR
AC
& V
SCE
CU
<16–3>
G–W
G–W
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
9 10 11 12
5 GS 400 / GS 300 (Cont’ d)
A
B
1 2 2 1
23 A 22 A 10 A
NE+ NE– G2
LW
B L
Y
C 5CRANKSHAFTPOSITION SENSOR
C 1CAMSHAFT POSITIONSENSOR
(*1) (*1)
1 2
21 F 23 F 20 A 19 A 8 A 7 A 30 A
TXCT CODE CL+ CL– M+ M– GE01
3 4 2 1
21 A 31 A 1 B22 E 9 F
ECEBLeft fender
E01 E02 E03EC EOM
W B (*1 )
Y–R
G–R
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
T 2THROTTLE CONTROL MOTOR
C 2CAMSHAFT TIMINGOIL CONTROL VALVE
18 A 17 A
W–R
R–W
OCV+ OCV–
13 E 20 E 14 E 21 E 15 E
From A
BS
& TR
AC
& VS
C E
CU
<16–4>
To AB
S &
TRA
C &
VSC
ECU
<16–4>
G–RLLGVP
TRC+ TRC– ENG+ ENG– NEO
28 D 27 D
MPX1 MPX2
E ngine Control and E ng ine Immob iliser S ystem (2JZ–G E )
ENGINE CONTROL MODULE13 DD6A25A13A1211 A
ACMGSTPIGFIGT3IGT2IGT
From A
/C C
OM
PR
elay<29–2>
From Stop Light
SW<
8–3> L–O
EB110
From Igniter<3–3>
L–O
G–WBB–R
B–L
B–Y
J 2JUNCTIONCONNECTOR
BR
(*1)
(*1)
A
A
A
A
A
A
A
A (*1)
(*1)
(*1)
(*1)
A28 A27
1
K 1
KN
OC
K SE
NSO
R 1
K 2
KN
OC
K SE
NSO
R 2
1
Rear side of theintake manifold
ED
B
GR
BR
BR
KNK1 KNK2
D
BRE
D2
STA
From P
ark/Neutral
Position SW
<3–2>
B
See Multiplex
Com
munication S
ystem<
1–8>
17 B
E1
BR
BR
29 A
LCKI
To A/C
Magnetic
Clutch and Lock
Sensor<
29–2>
GR
8 B16 A6 A
2
1
1
2
1
W–B
(*2 )
R–W L L–B
BR
W–B
W–B
MOPSPSMOL
BRBR
E10
EN
GIN
E O
IL LE
VEL SE
NSO
R
P 2PO
WE
R STEE
RIN
GO
IL PR
ESS
UR
E S
W
O 2
OIL PR
ESS
UR
E S
W
20 F 10 F
IMLD KSW
YV
To U
nlock Warning
SW
<1–3>
To Security Indicator
[Rheostat]<
1–13>
* 1 : Shielded
22 F
RXCK
L–R
B–W
G–B
TXCT RXCK CODE
4 3 2
T 6TR
AN
SPO
ND
ER
KE
YA
MPLIFIE
R
B–RF
W–BG
1 5
B–R
W–B
+B GND
IG Left sideof thecowl panel
4 EA1
, E 7E 6 E F
, E 3E 2 A B DE 5,
BR
(*1)
(*1)
OIL TE
MP
.
OIL LE
VEL
W–B
(*3 )
Frontside ofthe intakemanifold
1 2
ANT1 ANT2
TRANSPONDERKEY COIL
,
* 3 : w/o Daytime Running Light* 2 : w/ Daytime Running Light
CA
(*1)(*1)
J
1 2 3 4
6 GS 400 / GS 300
Power Source Fog Light
* 1 : Fog Light SW* 2 : HID Type* 3 : Except HID Type
Headlight (w/o Daytime Running Light)
1 1 1
4
3
2
1
14 II2
1
TAIL
OFF
HIGH
LOW
HEAD
FLASH
H T EL HF HU
LIGH
TC
ON
TRO
LS
WD
IMM
ER
SW
HL
14 18
C14COMBINATION SW
9 8
C
A
A
A
C
C
12 IE1
7 B
15 A
1
2
5 IA1
1
10AH–LPL UPR
1
10AH–LPR UPR
15AH–LPL LWR
15AFR FOG
15AH–LPR LWR
1
1 1 1
4 II410 II4
1
2
11 IE2
1 IA1
EE
7 II2
1H3
2
1
5
3
1H9 1B10
2 II4
1
2
1
2
EAEB
W R–B
R–G
R–G
R–G
R–G
1 1
2 2
B–L
W–B
W–B
G–W R
PW
–RW
–RG–B
W–R
W–B
W–B
W
R–B
R–B
R–G
WR
–G
W–R
R R
YR
–Y
R–L
R–L
R–L
2 2 2 2
1 1 1 1
W–R
W–B
RR
W–B
W–B
W–B
W–B
WR
–B
R–B
W–B
W–B
C
11C
HEA
D LP
RELA
Y
To Headlight B
eamLevel C
ontrol EC
U<
11–3>
ED LFG BFG
(*1) FOG
121716
J10JUNCTIONCONNECTOR
J14JUNCTIONCONNECTOR
H 8
HE
ADLIG
HT LH
(High )
H10
HE
AD
LIGH
T RH
(High )
J 6JUNCTIONCONNECTOR
IF
A
EB
J15JUNCTIONCONNECTOR
HIG
H B
EA
M IN
DIC
ATO
RLIG
HT
[CO
MB
. ME
TER
] BA
C12
C13
,
1K1
R–B
F 1FR
ON
T FOG
LIGH
T LH
F 2FR
ON
T FOG
LIGH
T RH
120A ALT
40A M
AIN
CFOGRELAY
Left kick panel Left fender Under the ABS &TRAC & VSC actuator
Left fender Rightfender
BATTE
RY
15
9
C C
R–G
R–B
R–G
HRLY
HEAD
B 6
BO
DY
EC
U N
O. 2
17 A
FFGO
FFOG
5
G–W
G–W
G–W
(*4 )
(*5 )
To Fog Light SW[C
omb. S
W]<
7–2>
B 6
BODYECU NO. 2
A
H 7
HE
AD
LIGH
T CO
NTR
OL EC
U R
H
H 6
HE
ADLIG
HT C
ON
TRO
L EC
U LH
H11
HE
AD
LIGH
T RH
(Low)
H 9
HE
ADLIG
HT LH
(Low)
11
22
(*3 )(*3 )
(*3 )(*3 )
R–Y
(*2 )W
–B(*2 )
W–B
(*2 )
R–L
(*2 )2
1
2
1
* 4 : w/ Daytime Running Light* 5 : w/o Daytime Running Light
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
1 2 3 4
7 GS 400 / GS 300
1
40A M
AIN
4
3
2
1 30A DR
L NO
. 2
20A EC
U–B
1
120 ALT
1 1 1 1 1
1K1
40A AM
1
1J3
7 II4
1 EB1
14 II2
2
ACC
IG1AM1 41J1 2B2 3 3
4
3
2
1
3
5A ECU
–B2
10A G
AU
GE
15A H
–LP L U
PR
1H4 2F7 3 3 3
8 EB1
W–L
HE
AD
LP R
ELAY
BATTERY
1 1
1 1
B C
2
1
2 2
2 2
2
B C
1DIM
ME
R D
RL
NO
. 2 RE
LAY
B–Y R–L
R–W
W–RR–W
R–L
W–R
R–Y
R–Y
R–Y
W–R
R–L
I22IGNITION SW
J17JU
NC
TION
CO
NN
EC
TOR
J18JU
NC
TION
CO
NN
EC
TOR
971
TAIL
OFF
HIGH
LOW
HEAD
FLASH
H EL T HL HF
LIGH
TC
ON
TRO
LSW
DIM
MER
SW
ED
16
9
17
W
HU
8
C R–G
From D
iode(D
aytime R
unning Light )<
11–4>
2
C
To Headlight
Beam
LevelC
ontrol ECU
<11–3>
8
C
W–L
W–B
W–B
C
J14JUNCTIONCONNECTOR
R–GR
–G
R–G
D 5DAYTIME RUNNING LIGHT RELAY(Main)
R–L
R–W
R–G
R–B
R–G
R–W
R–W
B–L
R–G
5 4
Y–R
Y–B
From B
ody EC
UN
o. 2<1–2>
To Parking B
rakeS
W<
1–12>
W–R
11 IE29 II412 EB1
1
2
1
215 A
7 B
4 II4
3 1 11
15A H–LP R
UP
R
30A D
RL N
O. 1
15A H
–LP R
LWR
15A H
–LP L LWR
1
1 1 1 1
2 2 2 2
H10
HEA
DLIG
HT R
H(H
igh )
H 8
HE
AD
LIGH
T LH(H
igh )
RR
R–G
R–G
Y R–L
R–B
RRR–G
P
W–R
W–R
B B B
2
1
2
1
12 IE110 II4
B
C C
IFLeft kick panel
B
AA AA A
W–B
W–B
W–B
W–R
W–BW–B
J10JUNCTIONCONNECTOR
J18JUNCTION CONNECTOR
J 6JUNCTIONCONNECTOR
J15JUNCTIONCONNECTOR
J11JUNCTIONCONNECTOR
EBLeft fender EEUnder the ABS &TRAC & VSC actuator
H 9
HE
AD
LIGH
TLH
(Low)
H11
HE
AD
LIGH
TR
H(Low
)
HIG
H B
EAM
IND
ICATO
RLIG
HT[C
OM
B. M
ETE
R]
BA
C12
C13
, From D
iode(D
aytime R
unning Light )<
11–4>
R–Y
6
P ow er S ource H ead ligh t (w / D aytime R unn ing L ight)
* 1 : 1UZ–FE* 2 : 2JZ–GE
W–B
W–B
W–B
1 IA1
R–Y
3 B 1 B2 A
2 B4 B1 A5 A
3
A
3 EB1
B W–B
DAY
TIME R
UN
NIN
G LIG
HT R
ELA
Y N
O. 4
BD
3
DAY
TIME R
UN
NIN
G LIG
HT R
ELA
Y N
O. 3
AD
2
RR
–G(*1 )
R–B
(*2 )
R–G
W–R
W–B
W–B
W–B
R–L
RR
W–B
W–R
W–R
C W–R
W–BW–R
W–B
W–B(*5)
R–G
H IG +B DRL
EPKBCHG–HI
HRLY
HEAD
15
14
R–B
9
R–G
C
B 6
BO
DY
EC
U N
O. 2
C14COMBINATION SW
LFG BFG
(*3) FOG
G–B
G–W
G–B
From Body ECU No. 2<6–4>
11 1218
* 3 : Fog Light SW
1 2 W–B
D26(*6)DAYTIME RUNNINGLIGHT RESISTOR
H 6
HE
AD
LIGH
T CO
NTR
OL EC
U LH
2
1
R–Y
W–B(*4)
R–Y
(*5 )
(*4 )
(*5 )
2
1
R–L
W–B
(*4 )(*4 )
(*5 )H
7H
EAD
LIGH
T CO
NTR
OL E
CU
RH
* 4 : HID Type* 5 : Except HID Type
(*5 )
* 6 : USA* 7 : Canada
1 2
D26(*7)SHORT CONNECTOR
W–B
(*7 )
(*7 )R
–L
J
1 2 3 4
8 GS 400 / GS 300
1
120A ALT
1
1K1
2
ACC
IG1AM1 4
1H2 1B4 1B9 1G3
4
2
1
2
4
2
1
2
1
2
BATTERY
F 5P
AR
KIN
G LIG
HT LH
F 3FR
ON
T SID
E MA
RK
ER
LIGH
T LH
F 6PA
RK
ING
LIGH
T RH
F 4FR
ON
T SID
E MA
RK
ER
LIGH
T RH
L 2LIC
EN
SE P
LATE
LIGH
T LH
L 3LIC
ENS
E PLATE
LIGH
T RH
1
2
EBLeft fender
W–B
W–B
W–B
Right fenderEA
W–B
W–B
W–B
G G G G G G
D D C C
D C
1E11
1
2
1H4
BKQuarter panel LH
1J11J3 1H8
10A G
AUG
E
15A S
TOP
10ATAIL
2
1
3
5
40A AM
1
W G G
W–B
W–B
W–B
J19JUNCTIONCONNECTOR
J17JUNCTIONCONNECTOR
J14JUNCTIONCONNECTOR B
See Illum
inationS
ystem<
9–1>
2
1
2
3
1
STO
P
TAIL
2
3
1
STO
P
TAIL
2
5
1
STO
P
TAIL
23S
TOP
SIDE
MA
RKE
R
1
2N 4NOISE FILTER(High Mounted Stop Light)
H23
HIG
H M
OU
NTE
D S
TOP LIG
HT
H24
HIG
H M
OU
NTE
D S
TOP LIG
HT
R11
REA
R C
OM
BIN
ATION
LIGH
T RH
1
2
A
12
13 2
W–B
W–B
W–B
W–B
R 9
REA
R C
OM
BIN
ATION
LIGH
T LH
5
1
TAIL
W–B
3
SIDE
MA
RKE
R
14 IC1
G–Y
G–R
G–W
G–Y
G–R
G–W
G–Y
G–W
G–Y
G–W
G–W
G–Y
G–R7 12 1
TAILRELAY
G–Y G–Y G–Y G–Y
G–W G–WG–WG–W
R 8REAR COMBINATIONLIGHT LH
R10REAR COMBINATIONLIGHT RH
W–B W–B W–B W–B W–B
8
B4 IC1IC3
9
A
BD
D
A
BD
B
J 7JU
NC
TION
CO
NN
ECTO
R
J19JUNCTIONCONNECTOR
J19JUNCTIONCONNECTOR
9 10 4 6 2
G–W G V–R
G–R
G–Y
G–Y
G–Y
G–Y
G–RG–R
WW–L
B–Y
G–W
G–W
G–W
V–R
To Body E
CU
No. 2<
1–2>
W–L B–Y
I22IGNITION SW
L 4LIGHT FAILURE SENSOR
J20JUNCTIONCONNECTOR
G–Y
G–R
P ow er S ource Ta illight and S top L igh t
S11STOP LIGHTSW
B–L
W–B
A
A
G–W
G–W
To Body E
CU
No. 2<
1–2>
To Engine Control
Module<
4–10><
5–9>R–L
R–L
R–L
A G–W
To ABS
& TR
AC
& V
SCEC
U<
16–6>
5
G
C
T+ IG ST+1 ST+2 WRN HS1 HS2
ST–T–2 T–1
W–B
W–B
11
GND
(*2 )(*2 )
(*2 )
(*1 )
(*2)
* 2 : w/o Rear Spoiler* 1 : w/ Rear Spoiler
6 II2 15 II2
GG
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
1 2 3 4
9 GS 400 / GS 300
1
120A A
LT
1
2
1
3
5
1K1
7. 5APANEL
1H2 1E8 1H7
1C2
1 BA1 1 BB1
7 IL1
2
1
2
1
1
2
4
2
A
W–G
A
W–G
4
3
A
W–G
4
2
A
W–G
6
5
A
W–G
1
5
A
W–G
6
5
A
W–G
BATTE
RY
A33
AS
HTR
AY
ILLUM
INATIO
NR
EAR
LH
A34
AS
HTR
AY
ILLUM
INATIO
NR
EAR
RH
A18
A/T S
HIFT P
OS
ITION
ILLUM
INA
TION
E12
ELEC
TRO
NIC
ALLY
CO
NTR
OLLE
DTR
AN
SMISS
ION
PATTE
RN
SELEC
T SW
V 6
VS
C O
FF SW
C10
CIG
AR
ETTE LIG
HTE
R
R 6
REM
OTE
CO
NTR
OL M
IRR
OR
SW
S 3SE
AT H
EATE
R S
W
H19
HEA
DLIG
HT C
LEAN
ER S
W
W–B
W–B
LGLG
LG LG LG LG LG LG LG LG
LG
LGLGLGLGLG
TAIL R
ELAY
IE213
To CombinationMeter<28–5>
W–G W–G
A
IIRight side ofthe cowl panel
1F131F9
1C61C5
3G53G2
3F53D23E23C23H2
3G4
3H4 3C4 3E4 3D4 3F4
5
15
3
2
20
13
2
15 A
5 D
6 D
6 A
2
1
W–B
E E E
A
1
2E
A
B–L
G–R
W
LG
To Rear D
oorR
H E
CU
<1–28>
To Rear D
oorLH
EC
U<
1–26>
A
J13JUNCTION CONNECTOR
J16JUNCTION CONNECTOR
J17JU
NC
TION
CO
NN
EC
TOR
G 4
GLO
VE
BO
XLIG
HT SW
M 3
MU
LTI–DISP
LAY
H18
HA
ZAR
D S
W
A13
A/C
CO
NTR
OL A
SSE
MBLY
G 3
GLO
VE
BO
X LIGH
T
LGLGLGLGLG
R–W
W–B
W–B
W–B
W–B
(*1)
(*2)
(*1)
(*2)
W–B
W–B
W–B
W–B
W–G
W–G
LG
LGLGW
LG
RA
DIO
AND
PLAYE
R
DA
R 2
R 5
,
IFLeft kick panel
A
A
A
16
15
R–Y
OFF
TAIL
HEAD
T H EL
J10JUNCTIONCONNECTOR
J 6JUNCTIONCONNECTOR
P ower S ource Illum inat ion * 1 : NAKAMICHI* 2 : Except NAKAMICHI
W–B
W–B
(Canada )
(Canada )
1H13
2 A
6
TRLY
TAIL
BO
DY E
CU
NO
. 2
AB
6
C14
LIGH
T CO
NTR
OL S
W[C
OM
B. SW
]
2
1
A
W–G
M 7
MIR
RO
R R
ETR
AC
TON
SW
LG
LG
J
1 2 3 4
10 GS 400 / GS 300
1
10A TU
RN
–HA
Z
120A ALT
1 1
1K1
40A A
M1
1J3
2
ACC
IG1AM1 4
1J1
10AGAUGE
1H4
9 EA3
8
4
6 EA1
F B
D A
1 IC3
5
4
5
4
6 II4 20 IJ2
B–L
LH
RH
TL TR TB
OFF
ON
F B1 B2
WW R–L
R–L
R–L
R–L
R R–B
R–B
R–B
R–B
BKQuarter panel LHBJRear floorpartition panel LH
11
1
B
C A
B A
B
2
22
W–L B–Y
BATTERY
JUN
CTIO
NC
ON
NE
CTO
R
BA
J 3J 4
,
AA
B
A
2
4 8 5 6
1 3 2 8
7 10
C C
C C
2H1
2B11 10 IC2 4 IC2
P 1BACK–UP LIGHT[PARK/NEUTRAL POSITION SW]
J 1JUNCTIONCONNECTOR
J17JUNCTIONCONNECTOR
R 8
BA
CK
–UP LIG
HT LH
[RE
AR
CO
MB. LIG
HT LH
]
R10
BAC
K–U
P LIG
HT R
H[R
EAR
CO
MB
. LIGH
T RH
]
J19JU
NC
TION
CO
NN
EC
TOR
IJ27
3
1
5
6
5
6
3
1
F 6FR
ON
T TUR
N SIG
NA
LLIG
HT R
H
R10
RE
AR TU
RN
SIG
NAL LIG
HT
RH
[REA
R C
OM
B. LIG
HT R
H]
R 8
RE
AR TU
RN
SIG
NAL LIG
HT
LH[R
EAR
CO
MB
. LIGH
T LH]
F 5FR
ON
T TUR
N SIG
NA
LLIG
HT LH
W–B
W–B
W–B
W–B
W–B
W–B
G–Y
G–Y
G–B
G–B
G–Y
G–Y
G–B
1G5 1B11 1D10
1H1
3
EARight fender EBLeft fender
2 3
4 IE2
3C5
3G5
1C62F13
2G6 1F13
IIRight side ofthe cowl panel
IFLeft kick panel
1
A A
7
A
A A
A
AA
I22IGNITION SW
T 7TURN SIGNAL FLASHER
J12JUNCTIONCONNECTOR
J17JUNCTIONCONNECTOR
J10JUNCTIONCONNECTOR
J 6JUNCTIONCONNECTOR
C12TURN SIGNALINDICATORLIGHT[COMB. METER]
C14TURN SIGNAL SW[COMB. SW]
H18HAZARD SW
(*1)(*2)B
C(*2)(*1)
R–B
G–Y G
–B
G–B
G–Y
G–Y
G–YR–L
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
LH RH
W–G W–G
R–W
R–WW
G–R
G
R–W
W W–BW–B
From BodyECU No. 1<1–13>
P ower Source B ack– Up L igh t Tu rn S igna l and Hazard W arn ing L ight * 1 : 1UZ–FE* 2 : 2JZ–GE
W–B W–B
W–B
A
22
1D5
1G6
W–B
W–B
IG LR LL GND
+B EHW EL ER
J20JUNCTIONCONNECTORA W–B
BR
BR
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
1 2 3 4
11 GS 400 / GS 300
2
ACC
IG1AM1 4
1J3
40A A
M1
1K1
11
30A H
–LP CLN
120A ALT
1
1J1
15AECU–IG
10AGAUGE
20AWASHER
1H5 1D4 1F3
B
B
3 IE2
3 A8 B1 A
2 II2 11 II2 1 II2 10 II23 II2
8 A
RH1
7 A
RH2
6 A
RH3
5 A
RH4
1 B
SBF
2 B
SHF
3 B
SGF
5 B
SBR
6 B
SHR
7 B
SGR
2 IC3 10 IC3 11 IC3
C12
HE
AD
LIGH
T BEA
M LEV
EL
CO
NTR
OL W
AR
NIN
G LIG
HT
[CO
MB
. ME
TER]
2 A 4 B
4 A
EB Left fender
A
A
6 IA1
2
1
M
2
4
B–Y
B–R
L
L–O
W–L
L
WL
B–R
R–L
B–L
B–L
B–R
B–R
B–R
B–R
R–W
P–G
G–O
R–B
B–R
R–W
P–G
G–O
R–B
G–Y
L–Y
L–W
L–B
G–B
L–O
W–B
L–B
G–B
L–O
W–B
W–B
W–B
W–B
R–Y
R–G
R–B
L–BB
W–B
L–O L
L–O LFrom AB
S &
TRA
C&
VSC
EC
U<
16–4>
From H
EAD
LPR
elay<6–2>
<7–1>
R–G
L–Y
L
E MTR H
1
11
5 4 1 6 3 1 2 4 3 2 1
12
2 2
2
3
SHB SHFL SHG SHB SHRL SHG
IG PB
P ow er S ource
H 4HEADLIGHT CLEANERCONTROL RELAY
J12JUNCTIONCONNECTOR
J 7JUNCTIONCONNECTOR
I22IGNITION SW
H 3HEADLIGHT BEAM LEVELCONTROL MOTOR
H15HEIGHT CONTROL SENSOR(Front)
H22HEIGHT CONTROL SENSOR(Rear)
H 5
HEA
DLIG
HT C
LEAN
ER
MO
TOR H
19H
EAD
LIGH
TC
LEA
NE
R SW
H 1 H 2,
HEADLIGHT BEAM LEVELCONTROL ECU
A B
H eadlight C leanerHeadligh t B eam Leve l C ontro l
BATTERY
B–L 3 2 4
To Daytim
e Running
Light Relay (M
ain )<
7–3>
To Light Control S
W[C
omb. SW
]<7–2>
D 7DIODE(DaytimeRunning Light)
51
1
18
4 1 6 3 2
LH1 LH2 LH3 LH4 LHB1
HEADLIGHT BEAM LEVELCONTROL MOTOR
HDLPSPDL
E1
IG LHB1 WNG
MEMO
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
1 2 3 4
12 GS 400 / GS 300 (Cont. next page)
120A ALT
15A A
M2
25A E
FI
1
1 1 1
1K1 9 IA1
40A A
M1
1J3
2
ACC
IG1
IG2
ST2
AM1 4
67 AM2
1
2
2 2
1 1
2
1
3
5
1 1
1 1
1 II1
EE Under the ABS &TRAC & VSC actuator
15 IA2 3 II4
10 E 1 E 9 E
1J6
5AIGN
1G7
4 C 10 C 5 C 11 C 14 B 21 B 9 B 2 B 13 B
2 1E
AA
E1 2
16 E 8 E
B–Y
B A B A
B B
1 C
6
C2
12
C3
5
C6
11
C7
4
13 C
10
C8
3 9
14 C C9
2 8
15 C 17 B 4 F26 D1 B31 A21 A
EBLeftfender
ECRH bank ofthe cylinderhead
EDLH bank ofthe cylinderhead
AA
C17
1 7
18 B
BATTERY
I22IGNITION SW
J15JUNCTIONCONNECTOR
J14JUNCTIONCONNECTOR
J11JUNCTIONCONNECTOR
E 1ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOID
B–Y
B–Y
B–Y
B–O
B–O
B–Y
B–Y
B–R
W–B
B–R
B–R
B–R L
G–Y
Y–G Y
G–W
L–R P L–B
G–B
R–B
G–R
BR
BR
W–B
W–B
W–B
W–B
W–B
W–B
BR
BR
B–RW
–B
B–Y
B–Y
W–R
W
W–R
W–L
W–L
B–W
B–Y
B–W
B–Y
R G L–Y
R–L
O 1
O/D
DIR
ECT C
LUTC
HS
PEE
D S
ENSO
R
V 1
VEH
ICLE
SPE
ED
SEN
SOR
(Electronically C
ontrolled Transm
ission )
EFI RELA
Y
JUN
CTIO
NC
ON
NE
CTO
R
BA
J 3J 4
,
MREL BATT IGSW NCO+ NCO– SP2+ SP2– THW VPA VPA2 VC VTA
+B +B1 S1 S2 S3 S4 SLU+ SLU– SLN+ SLN– SLT+ SLT– OIL E2 E1 E01 E02 E03 EC EOM
E 2 E 3, ENGINE CONTROL MODULEA B E 4, C E 5, D E 6, E E 7, F
20 B
VTA2
5 D
TC
17 D
STA
6 D
STP
See Engine Control System<4–5><4–6><4–7><4–8><4–10>
A
P ower Source E lec tronically C on trolled T ransmiss ion and A /T Ind ica tor (1U Z –FE )
B–L
OOGRGLRBRLGVYBW
2
1
A
A
J 5JU
NC
TION
CO
NN
EC
TOR
J
5 6 7 8
12 GS 400 / GS 300 (Cont’ d)
A
7 8 10 9 2 3
4
PL RL NL DL 2L LL
2 EA2 6 EA1 7 EA4 3 EA3 3 EA4 8 EA4
2 D 15 D 20 D 1 F 4 D 3 D
9 EA3
11 F 2 F 15 F
23 A 24 A
22
1
1J1
10AGAUGE
1D41H4
B
C
7 1 3
B
C
E 2 E 3,
ENGINE CONTROL MODULE
A B
R–B
R–W
G–R
Y–B
G
G–B
G–B
Y–B
R–W R
G–R
Y–B
G G–B
R–L
R–L
R–L
R–L
WG
–W
G–R
W–B
R–L
R–L
B–YB–Y
MPX1 SFTU SFTD
PWR SNOW
E12ELECTRONICALLY CONTROLLEDTRANSMISSION PATTERNSELECT SW
C, E 4 D, E 5 E, E 6 F, E 7
R P N D 3 2
6 ID1 7 ID1
2 1
L–Y
R–G
R–G
L–Y
C16A/T SHIFT MAIN SW[COMB. SW]
1D5
1F13
II Right side of the cowl panel
A
AJ17JUNCTIONCONNECTOR
W–B
W–B
W–B
ECT S
NO
W
EC
T PWR
L 2 3 M D N R
A/T P
C12COMBINATION METER
J 1JUNCTIONCONNECTOR
J 9JU
NC
TION
CO
NN
ECTO
R
P 1A/T INDICATOR LIGHT SW[PARK/NEUTRAL POSITION SW]
E lec tronically Con trolled Transmiss ion and A /T Ind icator (1U Z– FE )
B
BJ17JUNCTIONCONNECTOR
E
A
E
A
E
B
25 F16 F
To Shift LockControl ECU<25–1><25–2>
G
Y–B
B G–B R–Y
Y–G
L 4
J 3 J 4,
JUNCTIONCONNECTOR
A B
See M
ultiplexC
omm
unication System<
1–8>
C
SNO
W
PW
R
19 A
A
B 5
BODY ECU NO. 1
A
W–B
24 F
MPX2
AA
DA
AA
DA
R–W
R–B
R–W
R–B
CB
FB
To ABS
& TR
AC
&V
SC E
CU
<16–5>
R–W
R–B
J 3 J 4,
JUNCTIONCONNECTOR
A B
MPX1
SFTU SFTD
CPU
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
1 2 3 4
13 GS 400 / GS 300 (Cont. next page)
120A ALT
15A A
M2
25A E
FI
1
1 1 1
1K1 9 IA1
40A A
M1
1J3
2
ACC
IG1
IG2
ST2
AM1 4
67 AM2
1
2
2 2
1 1
2
1
3
5
1 1
1 1
1 II1
EE Under the ABS &TRAC & VSC actuator
15 IA2 3 II4
10 E 1 E 9 E
1J6
5AIGN
1G7
4 C 10 C 5 C 11 C 14 B 15 B 16 B 2 B 23 B
2 1E
AA
E1 2
16 E 8 E
B–Y
B A B A
B B
1 C
6
C2
12
C3
5
C6
11
C7
4
13 C
10
C8
3 9
14 C C9
2 8
15 C 17 B 9 F22 E1 B31 A21 A
EBLeftfender
ECFront side ofthe intakemanifold
EDRear side of theintake manifold
AA
C17
1 7
18 B
BATTERY
I22IGNITION SW
J15JUNCTIONCONNECTOR
J14JUNCTIONCONNECTOR
J11JUNCTIONCONNECTOR
E 1ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOID
B–Y
B–Y
B–Y
B–O
B–O
B–Y
B–Y
B–R
W–B
B–R
B–R
B–R L
G–Y
Y–G Y
G–W
L–R P L–B
G–B
R–B
G–R
BR
BR
W–B
W–B
W–B
W–B
W–B
W–B
BR
BR
B–RW
–B
B–Y
B–Y
W–R
W
W–R
W–L
W–L
B–W
B–Y
B–W
B–Y
R G L–Y
R–L
O 1
O/D
DIR
ECT C
LUTC
HS
PEE
D S
ENSO
R
V 1
VEH
ICLE
SPE
ED
SEN
SOR
(Electronically C
ontrolled Transm
ission )
EFI RELA
Y
JUN
CTIO
NC
ON
NE
CTO
R
BA
J 3J 4
,
MREL BATT IGSW NCO+ NCO– SP2+ SP2– THW VPA VPA2 VC VTA
+B B2 S1 S2 S3 S4 SLU+ SLU– SLN+ SLN– SLT+ SLT– OIL E2 E1 E01 E02 E03 EC EOM
E 2 E 3, ENGINE CONTROL MODULEA B E 4, C E 5, D E 6, E E 7, F
24 B
VTA2
5 D
TC
2 D
STA
6 D
STP
See Engine Control System<5–6><5–7><5–8><5–9><5–10>
A
P ower Source E lec tronica lly Controlled Transmission and A /T Ind icato r (2JZ– G E)
B–L
RW B Y V LG BR L G GR O O
2
1
A
A
J 5JU
NC
TION
CO
NN
EC
TOR
J
5 6 7 8
13 GS 400 / GS 300 (Cont’ d)
A
7 8 10 9 2 3
4
PL RL NL DL 2L LL
2 EA2 6 EA1 3 EA3
16 D 26 D 13 B 17 D 20 B 21 B
9 EA3
28 D
23 A 24 A
22
1
1J1
10AGAUGE
1D41H4
D
B
7 1
D
B
E 2 E 3,
ENGINE CONTROL MODULE
A B
B 5
BODY ECU NO. 1
A
R–B
R–W
G–R
Y–B
G G–B
Y–B
R–W R
G–R
Y–B
G G–B
R–L
R–L
R–L
R–L
WG
–W
G–R
R–L
R–L
B–YB–Y
MPX1
PWR SNOW
E12ELECTRONICALLY CONTROLLEDTRANSMISSION PATTERNSELECT SW
C, E 4 D, E 5 E, E 6 F, E 7
R P N D 3 2
1D5
1F13
II Right side of the cowl panel
A
AJ17JUNCTIONCONNECTOR
W–B
W–B
W–B
ECT S
NO
W
EC
T PWR
L 2 3 4 D N R
A/T P
C12COMBINATION METER
J 1JUNCTIONCONNECTOR
J 1JU
NC
TION
CO
NN
ECTO
R
P 1A/T INDICATOR LIGHT SW[PARK/NEUTRAL POSITION SW]
E lec tron ica lly C ontro lled Transmiss ion and A /T Indicato r (2JZ– G E )
3
W–B
B
B
R–L
J17JUNCTIONCONNECTOR
EA
EA
EB
J 3 J 4,
JUNCTIONCONNECTOR
A B
Y–B
D
14 A7 D
7 EA4
9 EA4
G–B
Y–B
R–Y
R–Y
G–B
Y–BY–G
To Shift LockControl ECU<25–1><25–2>
4 L
G–B
See M
ultiplexC
omm
unication System<
1–8>
C
SNO
W
PW
R
19 A
W–B A
MPX2
27 D
AA
DA
AA
DA
FB
CB
To AB
S & TR
AC &
VS
C E
CU
<16–5>
R–W
R–B R–W
R–B
R–W
R–B
J 3 J 4,
JUNCTIONCONNECTOR
A B
MPX1
CPU
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
1 2 3 4
14 GS 400 / GS 300
1
120A AM
1
15A AM
2
25A E
FI
1 1 1
1K1
40A AM
1
1J3
2
ACC
IG1
IG2
ST2
AM1 4
67 AM2
9 IA1
1J1
1J6
10AGAUGE
1D4
1D5
1F13
II
5AIGN
1G7
1 1
2
1
3
5
1 1
1 II1
EEUnder the ABS &TRAC & VSC actuator
15 IA2 3 II4
10 E 1 E 9 E 14 F
4
3
16 E 8 E
B A B A
B B
21 A 31 A 1 B 17 B
ECRH bank of thecylinder head
ED LH bank of thecylinder head
7 EA3
9 ID1 8 ID1
23 D 26 D 4 F
EB
12 C8 B8 A7 A30 A24 F20 B13 B2 B9 B21 B18 B
J17JUNCTIONCONNECTOR
J 9JUNCTIONCONNECTOR
J 4JU
NC
TION
CO
NN
EC
TOR
C16CRUISE CONTROL SW[COMB. SW]
J11JUNCTIONCONNECTOR
BATTERY
J15JUNCTIONCONNECTOR
J14JUNCTIONCONNECTOR
I22IGNITION SW
S11STO
P LIGH
T SW
C12
CR
UISE
CO
NTR
OL IN
DIC
ATO
RLIG
HT[C
OM
B. M
ETER
]
EFI R
ELAY
2
1
1 1 1
E
D
E
A
22
AA
2 2 2
E
AA
1
A
54D
E
E
B–L
W
W–R
B–Y
B–Y
B–R
W–B
W–B
B–R
B–R
B–R
B–R
W–B
W–B
W–B
BR
BR
BR
BR
BR
R–Y
R–Y
W–B
W–B
W–B
W–B
W–B
W–B
R–L
B–Y
B–O
B–L
B–O
B–Y
B–Y
B–Y
B–Y
B–Y
B–Y
B–W
B–W
B–Y
B–O
BR
BRBR
W–R
W–L
MREL BATT IGSW ST1– E2 VPA VPA2 VC VTA VTA2 GE01 M– M+ CL– CL+
+B +B1 E01 E02 E03 E1 CCS EC EOM
See Engine Control System<4–6><4–7>
See Engine Control System<4–12>
1 F
D
P ower S ource C ru ise Con trol (1U Z –FE )
11 F
See Multiplex
Com
munication S
ystem<
1–8>
MPX1 MPX2
CRUISE
RES/ACC
SET/COAST
CANCEL
Left fender
J 5JUNCTIONCONNECTOR
A
A
See E
lectronicallyC
ontrolled Transmission
and A/T Indicator System
<12–6>
9 A
ME01
BR
CPU
Right sideof thecowl panel
E 2 E 3, ENGINE CONTROL MODULEA B E 4, C E 5, D E 6, E E 7, F
JUN
CTIO
NC
ON
NE
CTO
R
BA
J 3J 4
,
15A ECTS
1
1
2
7 E
+BM
6 IA2
V–YL–Y
L–Y
L–Y
J
1 2 3 4
15 GS 400 / GS 300
1
120A AM
1
15A AM
2
25A E
FI
1 1 1
1K1
40A AM
1
1J3
2
ACC
IG1
IG2
ST2
AM1 4
67 AM2
9 IA1
1J11J6
10AGAUGE
1D4
1D5
1F13
II
5AIGN
1G7
1 1
2
1
3
5
1 1
1 II1
EEUnder the ABS &TRAC & VSC actuator
15 IA2 3 II4
10 E 1 E 9 E 11 D
4
3
16 E 8 E
B A B A
B B
21 A 31 A 1 B 9 A 17 B
ECFront side of theintake manifold
ED Rear side of theintake manifold
7 EA3
9 ID1 8 ID1
23 D
JUN
CTIO
NC
ON
NE
CTO
R
BA
J 3J 4
,
22 E 9 F
EB
20 A19 A8 A7 A30 A27 D24 B23 B2 B16 B15 B18 B
J17JUNCTIONCONNECTOR
J 9JUNCTIONCONNECTOR
J 4JU
NC
TION
CO
NN
EC
TOR
C16CRUISE CONTROL SW[COMB. SW]
J11JUNCTIONCONNECTOR
BATTERY
J15JUNCTIONCONNECTOR
J14JUNCTIONCONNECTOR
I22IGNITION SW
S11
STO
P LIG
HT S
W
C12
CR
UISE
CO
NTR
OL IN
DIC
ATO
RLIG
HT[C
OM
B. M
ETER
]
EFI RELA
Y
2
1
1 1 1
E
D
E
A
22
AA
2 2 2
E
AA
1
A
54D
E
E
B–L
W
W–R
B–Y
B–Y
B–R
W–B
W–B
B–R
B–R
B–R
B–R
W–B
W–B
W–B
BR
BR
BR
BR
BR
BR
R–Y
R–Y
W–B
W–B
W–B
W–B
W–B
W–B
R–L
B–Y
B–O
B–L
B–O
B–Y
B–Y
B–Y
B–Y
B–Y
B–Y
B–W
B–W
B–Y
B–O
BR
BRBR
W–R
W–L
MREL BATT IGSW ST1– E2 VPA VPA2 VC VTA VTA2 GE01 M– M+ CL– CL+
+B B2 E01 E02 E03 ME01 E1 CCS EC EOM
See Engine Control System<5–6><5–7>
See Engine Control System<5–11>
17 D
D
P ower S ource C ruise C ontro l (2JZ– G E)
28 D
See M
ultiplexC
omm
unicationS
ystem<
1–8>
MPX1 MPX2
Left fender
CRUISE
RES/ACC
SET/COAST
CANCEL
J 5JUNCTIONCONNECTOR
A
A
See E
lectronicallyC
ontrolled Transmission
and A/T Indicator System
<13–6>
CPU
E 2 E 3, ENGINE CONTROL MODULEA B E 5, D E 6, E E 7, F
Right sideof thecowl panel
15A ECTS
1
1
2
7 E
BM
6 IA2
V–Y
L–Y
L–Y
L–Y
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
1 2 3 4
16 GS 400 / GS 300 (Cont. next page)
1
60A AB
S NO
. 1120A
ALT
1
1J3
1 1
1K1
1
15A A
M2
40A AB
S N
O. 2
9 IA1
2
7
ACC
IG1
IG2
ST2
AM1 4
6AM2
I22IGNITION SW
A
A
2
22
4
3
2
1
2 2
2 2
AB
S MO
TOR
RELA
Y 4
3
2
1
2 2
2 2
TRA
C M
OTO
R R
ELA
Y
A
3
1
6
4
2
2 22
2 22
5
3 D 1 A
19 A 2 D 29 A 27 A 21 A 7 A 16 D 8 D 7 D 1 D 8 A 9 A 2 A 3 A 4 A 5 A 6 D 11 A 9 D 28 A 18 A
2 C 3 B 7 B 8 A 7 A 10 A 9 A 4 A 3 A 2 A 1 A 12 A 11 A 5 A 6 A 1 B 3 C 4 B 5 B 8 BA
BS S
OL R
ELA
Y
2 B 6 B 4 C 1 C
EEUnder the ABS & TRAC & VSC actuatorEA Right fenderEEUnder the ABS & TRAC & VSC actuator
A
A
IA22
EA111
B
25 C
V S CP ower S ource
A 5 A 6,
ABS & TRAC & VSC ACTUATOR
A BJ 5JUNCTIONCONNECTOR
A 7, C
A19 A20,
ABS & TRAC & VSC ECU
A B A21, C A22, D
W–L
W–R
B–Y
B–W
R–B
W–B
B–Y
B–R
W–R
WR
B–W
LG–B
LG–B
R–B
LG–R
R GR
LG–B
R–B
R
G–O L
V–R
W–B
R–B
O V–R
G–O
LB
R
R–B
W–B
W–B
R–B
W–R
G–B
W–L
W–G
L–B
L–Y Y
Y–G
R–G
R–L
R–W
GR
–B
Y–R
B–W
GR
–L
GR
–G
GR
–R
W–G
GR
O
R
A
2
2 2 2
2
111
1
1
A
J15JUNCTIONCONNECTOR
A
B–L
BATTERY
LG–B
LG–R
40A A
M1
IA12
IA25
LG–B
LG–R
LG–B
5 C
W–B
11 IA2
14 IA2
3 IA1
4 IA2
R–B
G–O
W–B
13 IA2
4 IA1
1 IA2
12 IA2
3 IA2
Y–R
B–W
GR
–L
GR
–G
GR
–R
AGR
1J6
5A IG
N
1G7
E
E
1 C
J14JU
NC
TION
CO
NN
ECTO
R
18 B 1 B 2 B 9 B 10 B 7 B 14 B 22 B 24 B 16 B
From E
ngine Control
Module
<4–11>
<5–11>
3 1 5 2
B–O
B–O
B W R G
(Shielded )
G–R
LG L P V
A23ABS DECELERATIONSENSOR
To Engine C
ontrolM
odule<
4–11><
5–11>
3 C
L–YTo H
eadlight Beam
Level Control EC
U<
11–3>
VGS GL1 GL2 GGND
B–W
R2+ R1+ D/G IG2 GSS VGS GL1 GL2 GGND FLO NEO ENG+ ENG– TRC+ TRC–
SR MR2 MR1 MTT SFLH SFLR SFRH SFRR SRLH SRLR SRRH SRRR SA1 SA2 SA3 STR AST PH PL MT+ MT–
GR
To Data Link
Connector 3
<4–5>
<5–5>
V–R
GR
J
5 6 7 8
16 GS 400 / GS 300 (Cont’ d)
VS C
B
1J1
10A G
AUG
E
1D4
15A E
CU
–IG
1H5
24 A 23 A 22 A 10 A 19 C 17 C 28 C 27 C 9 C 6 B 20 C
B
B
1
2
BU
ZZER
13 A 14 A
1
2A
9A
BS
SPE
ED
SE
NS
OR
FRO
NT R
H
19 B 20 B
2
1
A31
AB
S SP
EE
D S
EN
SO
RR
EAR
LH
11 B 12 B
2
1
A32
AB
S SP
EE
D S
EN
SO
RR
EAR
RH
6 A 31 A
IFLeft kick panelII Right side ofthe cowl panel
26 C
1
2
15 C 24 C 7 C 18 C 8 C
1 2 3
4 1 3 5
B B
2 1
6 3
B–Y
B–R
B–R
B–R
W R B
(Shielded )
GR
–L
R W B
(Shielded ) B–R
W–R
B–R
B–R
B–R
LLG
G–W
R–W
R–BY
W–B
W–B
OL–W
BR
–W
BR
G–W
BR
BR
G–W
BR
BR
–W
L–W O
W–B
W–B
V 7VS
C W
AR
NIN
G BU
ZZER
M 2MASTER CYLINDERPRESSURE SENSOR
Y 1YAW RATE SENSOR
J 7JUNCTION CONNECTOR
V 6
VS
C O
FF SW
A19 A20,
ABS & TRAC & VSC ECU
A B A21, C A22, D
From S
top Light SW<
8–3>
B
BJ15JUNCTIONCONNECTOR
AJ10JUNCTIONCONNECTOR
17 B8 B
A
AA A
W–B
W–B
W–B
AJ 6JUNCTIONCONNECTOR
12 IL34 IL315 IC16 IC18 II217 II2
J17JUNCTIONCONNECTOR
A W–B A
YD YAW2 GYAW VYS
16 A 15 A
1
2
P L
12 EA1 EA110
P23 11 22
D
5 C
A
J 9JU
NC
TION
CO
NN
EC
TOR
A LG–B
LG–B
P–B
LG–B
GR
(Short Pin)
3 B
D
A
P–B
D 1DATA LINK CONNECTOR 1
C15
STEER
ING
SEN
SO
R[C
OM
B. SW
]
2 IE1 14 IE1 5 IE1 6 IE1 4 IE1 3 IE1
5 B 16 C 6 C 4 C 13 C
R–G V V–R
L–O
LG–R
LG–B
O L L R G P
B–R
B
C
D
E
F
G
A 8AB
S S
PEE
D S
EN
SOR
FRO
NT LH
J14JUNCTIONCONNECTOR
5 EA1
16
4 B
B–W
B–W
B–W
A
R–L
AGR
TC TS WAWB
(Cont. next page)
LG–B
P
G
R
L
L
O
R–L
From A/T Indicator Light S
W[Park/N
eutral Position SW
]<
12–5><
13–5>
FSS E2 PMC VCM FL+ FL– YD YSS YAW GYAW VYS IG1 BZ TC TS WA
GND3 GND4 CSW R P STP GND2 GND1 SS1– SS1+ FR– FR+ RL+ RL– RR+ RR– BRL SP1 IND VSCW WT
E2 PMC VCM
SS1– SS1+
ESS IG1
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
9 10 11 12
16 GS 400 / GS 300 (Cont’ d)
22 A 8 B
1D5
1G61F13
IF Left kick panelIIRight side ofthe cowl panel
11 IE1
ABS
VSC
OFF
VS
C
SLIP
SPE
EDO
METER
BRA
KE
CPU
A
A
AA
W–B
W–B
W–B
O
W–B
W–B
J 6JUNCTIONCONNECTOR
J17JU
NC
TION
CO
NN
ECTO
R
16 B 15 B 13 B 14 B 5 B 17 B 1 A
G
F
E
D
C
B
AP
G
R
L
L
O
R–L
R–L
OLLRGP
C12 C13,
COMBINATION METER
A B
VS C
J
1 2 3 4
17 GS 400 / GS 300
2
7
ACC
IG1
IG2
ST2
AM1
3
6AM2
1D3 1J3
5A S
RS
–B
1K1
1
120A ALT
1
40A A
M1
9 IA1
1
15A AM
2
A
1J6 1J4
5AIGN
15ASRS–ACC
1N11N4
12
14
1D94
1F
1N3
3 EA1
To Data Link
Connector 1
<4–8>
<5–8>
3 B
LA
6 B
ACC
5 B
IG2
4 B
GSW
19 B
TC
12 B
SIL
6 C
PR–
5 C
PR+
1 A
PL–
2 A
PL+
1 C
SFR–
2 C
SFR+
6 A
SFL–
5 A
SFL+
11 B
P–
10 B
P+
SPIRALCABLE
13 B
D–
14 B
D+
27 B
E1
7 C
ESR
9 C
FSR
10 C
SSR
12 C
VUPR
4321
12 A
ESL
10 A
FSL
9 A
SSL
7 A
VUPL
4321
2 II31 II3
20 B
–SR
9 B
+SR
12
2 IF11 IF1
26 B
–SL
15 B
+SL
12
28 B
E2
IG Left side ofthe cowl panel
IFLeft kick panel EB Left fender
A
L–Y
B–W
B–W
L–B
LG
W–B
W–R
W–L
L–B
W–R
WB
–L
L–B
L–YG
R
B–O
L
B–Y
LG
LG
P–B
W
P–B
W
Y–B Y Y–B YY
–G
Y–R
Y–G
Y–R
Y–G
Y–RYY–B
W–B
GR
LG
L–YP
GR
–L
LG–B
L–W
P–L
W–B
BR
–W
B–W
BR
W–R
BR
–W
B–W
BR
W–R
W–B
1 2 1 2
A
22
A
11
J 6JUNCTIONCONNECTOR
J15JUNCTIONCONNECTOR
I22IGNITION SW
A11AIRBAG SENSORFRONT LH
A12AIRBAG SENSORFRONT RH
S12SIDE AIRBAGSENSOR LH
S13SIDE AIRBAGSENSOR RH
A29AIRBAG SQUIB(Steering Wheel Pad)
A28AIRBAG SQUIB(Front Passenger Airbag Assembly)
S23SIDE AIRBAGSQUIB LH
S24SIDE AIRBAGSQUIB RH
P14PRETENSIONER LH
P15PRETENSIONER RH
C12
SRS
WAR
NIN
G LIG
HT
[CO
MB
. METER
]
C 7 C 8,
CENTER AIRBAGSENSOR ASSEMBLY
A B
S RSP ower S ource
To Body E
CU
No. 2<
1–2>
BATTERY
C 9, CTo D
ata LinkC
onnector 3<
4–5><
5–5>
1 2
1 2 1 2 1 2
2
1
VUPL SSL FSL ESL VUPR SSR FSR ESR
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
1 2 3 4
18 GS 400 / GS 300
Power Source Electric TensionReducer
Cigarette Lighter andPower Outlet
Clock Fuel Lid Opener
2
ACC
IG1AM1
3
4
1J31F61C3
1K11F11
2H12
2B2
1
1
15AECU–IG
1J1 1H5
1E2
A
2
1
9 BC1
4
2
A
A
12 BC1
BJ
B
B
B
B
2F11
2E2
2
1
9 BD1
4
2
B
B
12 BD1
BL
15ACIG
1F7
1J4
B
B
1
2
A
A
II
15ARADIONO. 2
1C1
3B5
3G5
1C6
1F13
6 IJ2
3B1
3G1
1
2
16 IC3
3
2
M
BK
J20JUNCTIONCONNECTOR
BJ
A
W–L
L–O
L–YL–Y
W
B–R
B–R
B–R
B–RB
–R
B–RB–Y
L–Y
R–L
B–L
W
W–G
W–G
W–B
W–B
W–B
W–B
W–B
W–B
W–G
W–G
1 1
2 2
W–B
W–B
W–B
L–R
L–WL–W
W–B
W–B
W–B
Y
W–B
W–B
A
A
PP
P
L–Y
GR
L–Y
L–O
L–Y
3
1 3
1
5 4B
I22IGNITION SW
10A FU
EL OP
N
40A AM
1
10A D
OM
E
J 7JUNCTIONCONNECTOR
J15JUNCTIONCONNECTOR
J 8JUNCTIONCONNECTOR
T10TEN
SIO
N R
ED
UC
ER
SO
LENO
ID LH
T11TEN
SIO
N R
ED
UC
ER
SO
LENO
ID R
H
20A E
CU
–B1
120A A
LT
BATTERY
B 7BUCKLE SWLH
B 8BUCKLE SWRH
J23JUNCTIONCONNECTOR
J24JUNCTIONCONNECTOR
J12JUNCTIONCONNECTOR
C10
CIG
AR
ETTE
LIGH
TER
P 5
PO
WE
R O
UTLET
C11CLOCK F 8
FUE
L LIDO
PEN
ER
SW
J17JUNCTIONCONNECTOR
F14FU
EL LIDO
PE
NE
R M
OTO
R
To Com
binationM
eter<28–6>
Rear floorpartition panel LH
Rear floorpartition panel RH
Right side ofthe cowl panel
Rear floorpartition panel LH
Quarterpanel LH
W–B
18 IJ2
LG–B
LG–B
6
To Body E
CU
No. 2<
1–3>
ACC+ B+
EARTH ILL+ PBEW
2
1
1
3B3
3G3
GR
PA
SSE
NG
ER
SE
AT BELT
A
2E5
L–Y
1H10
12 IL1 13 IL1 4 IL1
4 IJ2 14 IJ2 13 IJ2
1 2 5
D
836
D
B–RB
–R
L–Y
GR
GR
W–R
W–L
B–W
B–W
W–L
W–R
W–R
W–L
B–W
From Radio and Player<27–3>
3 IL1
GR J13
JUNCTIONCONNECTOR
BM
7
W–B
A
Quarter panel RH
J22JUNCTIONCONNECTOR
A35
AU
TO A
NTE
NN
A C
ON
TRO
LR
ELAY A
ND
MO
TOR
Auto Antenna
J
1 2 3 4
19 GS 400 / GS 300
Power Source Horn
* 1 : w/o Daytime Running Light* 2 : w/ Daytime Running Light
Wiper and Washer
2
ACC
IG1AM1 4
1J3
40A AM
1
1K1
11
1
A
1
2
M
5 ID1
20AWASHER
25AWIPER
1J1
1F3 1F5 1B1
A
A
IF
J 6JUNCTIONCONNECTOR
A
10AGAUGE
ID14
ID12
ID11
EB
1D4
1 A
10 B
9 IE1
2
1
3
5
2 2
2 2
16 II2
A
A
6
G W–L
G W
L–OL–Y
B–Y
L–O
B–Y
G
L–O
1
2
A
1 1
2 2
B–L
W–B
W–B
W–BL–Y
11 2 7 8 16 1 4 3 5L–W
L–R
L–B
L–W
W–B
(*2 )
W–B
(*1 )
L–R
L–B
W–B
GR
–B
G–B
W–BW–B
W–B(*2) W–B
(*1 )
L L
R–L
Y
G
2
17
G
B
G–B
G–B
G–B
B
B
A
I22IGNITION SW
J12JUNCTIONCONNECTOR
C17FRONT WIPER AND WASHER SW[COMB. SW]
ABATTERY
W 2
WAS
HER
MO
TOR
J10JUNCTIONCONNECTOR
10A H
OR
N
120A ALT
F 7FRONT WIPER MOTOR
WA
SH
ER
LEV
ELW
AR
NIN
G LIG
HT
[CO
MB
. ME
TER
] BA
C12
C13
,
HORNRELAY
J18JUNCTIONCONNECTOR
H16HORNLH
H17HORNRH
C16HORN SW[COMB. SW]
To Body EC
UN
o. 1<1–12>
2
1
W 1WASHER LEVELWARNING SW
1 1
Left kick panel Left fender
+BF1F2+1+2+SMISTWF EW
OFF
MIST
INT
MIST
LO
MIST
HI
MIST
WASHER
WIPER RELAY
M
IGLeft side ofthe cowl panel
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
1 2 3 4
20 GS 400 / GS 300
Power Tilt and Power TelescopicMoon RoofPower Source
2
ACC
IG1AM1 4
1J31
1K11
11 1
1
2D5
2G6 2F13
II
2D1
2F11
1J1
15AECU–IG
1H5
25AS/ROOF
30AP P/SEAT
2D8 2F1
2A1
2G4
2B8
A
A
IF
A
W–L
B
G–W
O
B–Y
B–Y
1 1
2 2
2
MPX1
R–L
B W
B–L
W–B
PG–Y
R–W
R–Y
W–B
W–B
W–B
W–B
UP DWN CLS OPN E
1 1
2 2
4 3 10 9 7
3 2 4 1 5
B–R
W–B
B–R
W–B
W–B
Y Y–R
W–B
W–B
W–B
W–B
B–R
8 2 4 1 7 8 3
IGIG GND ECUE MPX1 MSW VC
AA
B–R
L–O
L–O
L
G–W
G–W
B–R
+B ECUBB
B
G–W
To Body EC
UN
o. 1<1–13>
I22IGNITION SW
10A M
PX–B
40A AM
1
M 5MOON ROOF CONTROL ECU
20A EC
U–B1
120A ALT
BATTERYM 6MOON ROOF CONTROL SW
J 7JUNCTIONCONNECTOR
T 5TILT AND TELESCOPIC ECU
A
J15JUNCTIONCONNECTOR
J10JU
NC
TION
CO
NN
ECTO
R
J 6JUNCTIONCONNECTOR
C15TILT AND TELESCOPICSW[COMB. SW]
TELESCOLONG
TILTUP
TELESCOSHORT
TILTDOWN
B
B
BB
B
Right side ofthe cowl panel
Left kick panel
4 9
10 5
B–R
6
MPX2
See M
ultiplexC
omm
unicationS
ystem<
1–8>
5
UP CLOSEDOWN OPEN
M
MOON ROOF MOTOR
LIMIT SW
NO
. 2
LIMIT SW
NO
. 1
M M
PO
WE
R TELE
SCO
PICM
OTO
R
PO
WE
R TILT M
OTO
R
TEM+ TEM– TIM+ TIM–
6 5 4 3
61G
131F
A A
J17JUNCTIONCONNECTOR
W–BW–B
J
1 2 3 4
21 GS 400 / GS 300
2
ACC
IG1AM1 4
1J3
40A A
M1
1K1
1
120A ALT
1
2D3
2G5
15 IB1 14 IB1 15 IK1 14 IK1
2D10
2H7
15A ECU–IG
20A SE
AT HTR
B
B
A
A
II IF Left kickpanel
EB
A
9 IC2 9 IL2
2 BC1 2 BD1
2
1
2
1
2
1
2
1
A
A
B
B
12 BC1 12 BD1
BL Rear floorpartition panel RH
BJ Rear floorpartition panel LH
E LH RH
W–B
W–B
B–Y
G–R
G–O
W–L
WB
–L
G–R
G–O
W–B
B–R
B–R
LG
W–B
B–Y
L–YB–R
W–B
B–Y
L–YL–Y
B–Y
L–B
L–BW
–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
G–O
G–R
G–O
G–R
G–R
G–R
G–O
G–O
2 3 4 1
4 2 3
A
A
2
2
1
1
B–R
J 7JUNCTIONCONNECTOR
J15JUNCTIONCONNECTOR
J11JUNCTIONCONNECTOR
J10JUNCTIONCONNECTOR
J 6JUNCTIONCONNECTOR
J23JUNCTIONCONNECTOR
J24JUNCTIONCONNECTOR
S21SEAT HEATER(Front Passenger’ s Seat Back)
S22SEAT HEATER(Front Passenger’ s Seat Cushion)
S20SEAT HEATER(Driver’ s Seat Cushion)
S19SEAT HEATER(Driver’ s Seat Back)
I23INNER MIRROR
I22IGNITION SW
S 3SEAT HEATER SW
S eat HeaterA u tomatic G la re–R es istant E C M irro rP ow er S ource
BATTERY
IG
IGGNDEC–EC+
2
1
5
3
2F13
2A1
1
2F5
6
IG R
ELAY
B
B
B–R
W–B
W–B
R16REMOTE CONTROLMIRROR LH
R17REMOTE CONTROLMIRROR RH
4 3 4 3
2F11
2D1
11J
51H
B B B
B
2D5 2G6
Left fenderRight side ofthe cowl panel
W–B
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
1 2 3 4
22 GS 400 / GS 300
1
120A A
LT
1 1
1K1
30AD P/SEAT
1E9
1 BC1
2
1
M
9 6
B
2
1
M
10 5
1
2
M
7 8
1
2
M
3 2 4
1
1 2
M2 1
BB
43
BJRear floorpartition panel LH
12 BC1
AA
A
2A1
30AP P/SEAT
2E9
1 BD1
1
2
M
9 6
A
1
2
M
5 10
2
1
M
8 7
1
2
M
3 2 4
1
A
M2
A
1
4 3
12
BLRear floorpartition panel RH
BD112
BB
B
BATTER
Y
P21POWER SEAT MOTOR(Driver’ s Seat Lumbar Support Control)
P26POWER SEAT MOTOR(Front Passenger’ s Seat Lumbar Support Control)
P16POWER SEAT CONTROL SW(Driver’ s Seat)
P17POWER SEAT CONTROL SW(Front Passenger’ s Seat)
L 8LUMBAR SUPPORT CONTROL SW(Driver’ s Seat)
L 9LUMBAR SUPPORT CONTROL SW(Front Passenger’ s Seat)
J23JUNCTIONCONNECTOR
J24JUNCTIONCONNECTOR
P24
PO
WE
R S
EAT M
OTO
R(D
river’s S
eat Slide C
ontrol )
P20
PO
WE
R S
EAT M
OTO
R(D
river’s S
eat Front Vertical C
ontrol )
P22
PO
WE
R S
EAT M
OTO
R(D
river’s S
eat Rear Vertical C
ontrol )
P23
PO
WER
SEA
T MO
TOR
(Driver’
s Seat R
eclining Control )
P29
PO
WE
R S
EAT M
OTO
R(Front Passenger’
s Seat Slide C
ontrol )
P25
PO
WE
R S
EAT M
OTO
R(Front Passenger’
s Seat Front Vertical C
ontrol )
P27
PO
WE
R S
EAT M
OTO
R(Front P
assenger’s S
eat Rear V
ertical Control )
P28PO
WE
R S
EA
T MO
TOR
(Front Passenger’s Seat R
eclining Control )
J24JU
NC
TION
CO
NN
EC
TOR
J23JU
NC
TION
CO
NN
EC
TOR
B–L
L–WWB
B B–R
W–R
W–G
Y–G
Y–R
L–R L
W–B
W–B
B B–R
W–R
W–G
Y–G
Y–R
L–R L
W–B
W–B
W–B
W–B
W–B
W–B
LL
L L
L–W
L–WL–W
W–B W
–BL–B
L–O
L–O
L–B
BW
Pow er S ource P ow er S eat(D river’ s S ea t w /o D riv ing P os ition M emory)
1
2
RE
AR
FRO
NT
FRO
NT
REA
R
UP
DO
WN
UP
DO
WN
FRO
NT
REA
R
SLIDEFRONTVERTICAL REAR VERTICAL RECLINING SLIDE
FRONTVERTICAL REAR VERTICAL RECLINING
FRO
NT
REA
R
UP
DO
WN
UP
DO
WN
FRO
NT
REA
R
FRO
NT
RE
AR
Pow er S ea t (Fron t P assenger’ s S ea t)
J
1 2 3 4
23 GS 400 / GS 300
Power Source Cellular Mobile Telephone
2
ACC
IG1AM1 4
1J3
11
1K1
1
B
B
B
2F11
2E2
15AECU–IG
1J1
1H5
10 A 9 A 3 B
6 IL2
5 II4
15 IL1
2 IJ1
5 B 12 B 5 A 12 A 4 B 8 A 8 B 1 B 6 B 4 A 3 A 7 B 2 B 7 A 2 A 11 B 6 A 1 A 11 A 10 B
1 B 6 B 4 B 3 B 8 B 7 B 2 B
3 A 6 A
See R
adio andP
layer System
<26–4>
<27–4>
5 IL1 14 IL1 11 IL1
A
BM
J22JUNCTIONCONNECTOR
W–L
G–R
B–R
B–R
G–R
G–R
G–R
G–R
B–Y
B–R
B–R
1
2
B–R
B–R
WG–R
B–L
B–R
B–R
B–R
L L–R
L–Y
1 1
2 2
L–W
(Shielded )
W B P
V P
W–B
B–O
V P
B–O
W–B
W–B
2 1
A
GR
–RG
R–R
GR
–R
B
I22IGNITION SW
J 7JUNCTIONCONNECTOR
J15JUNCTIONCONNECTOR40A
AM1
15A TEL
120A A
LT
BATTERY
C18 C19,
CELLULAR PHONE(Hand Set)
A B T 4TELEPHONEMICROPHONE
C16TELEPHONE SW[COMB. SW]
From A/C ControlAssembly<29–8>
T 8 T 9,
TELEPHONE TRANSCEIVER AND SPEAKER RELAY
A B
Quarter panel RH
3
MIC– MIC+
2 A
W–L
L–B
5 B
(Shielded )
GRRRG–B
L–W
B–W
G–W
R–W
Y–B
Y–B
B
B
B Y O R V BR
GR
–W
G
R–W
W G B B P
WWW W
4 10 3 9 510 23 18 12 11 2 24 6 1 8 14 15 17 3 20
5 4 16 13
SPEAKER RELAY TELEPHONE TRANSCEIVER
222519621
L
BR
R–W
R–W
R–W B
R
BR
SP–CNT TEL(+) TEL(–)
RL–SP(+)
RL–SP(–)
AUDIO(+)
AUDIO(–) GND
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
1 2 3 4
24 GS 400 / GS 300
2
ACC
IG1AM1 4
1J3
40AAM1
1K1
11
120AALT
1
1J1
15AECU–IG
10AHEATER
1H5 1F8
B
B
C
C
IFLeft kick panel EB Left fender
A
A
A
1 2
9 EA18 EA1
2H3
2A1
2
1
3
5
10AMIRHTR
2H102F6
8 IB1 12 IK1
7 B
12 A
7 B
12 A (*1)
(*2)
8 B
13 A (*1)
(*2)8 B
13 A
3 IB1 3 IK1
A
2H2 2H5
4
3
2
1
4 4
4 4
2J3 2J6 2J5
30ADEFOG
7 IC2
2G6
IIRight side ofthe cowl panel
B–Y
B
L–BR
W–B W–B
W–B
W–B
W–B
B
W–L
WBB
–L
B–Y
G–R
W–B
B–R
B–R
R–L
R–L
R–W
R–W
R–W
R–W
W–B
W–B
W–B
W–B
G–R
B–Y
L L–B
L–WL–W
R–L
R
W–B
W–B
J 7JUNCTIONCONNECTOR
J13JUNCTIONCONNECTOR
J10JUNCTIONCONNECTOR
J 6JUNCTIONCONNECTOR
J17JUNCTIONCONNECTOR
I22IGNITION SW
P 6PPS ECU
P 3PPS SOLENOID
SOL+ SOL– GND
1 2 61
1
2
5 4
2
2
1
AA
A
R ear W indow D efogger and M irror H ea terP P SP ow er S ource
To Speedom
eter[C
omb. M
eter]<
28–4>
BATTERY
R17 ,
RH
AR16 ,
LH
A B MIRROR HEATER[REMOTE CONTROL MIRROR]
NO
ISEFILTER
NO
ISEFILTER
IGSPD
DEFRELAY
MIRRELAY
V–W
To Body E
CU
No. 1<
1–14>
* 1 : w/ Driving Position Memory* 2 : w/o Driving Position Memory
B
N 5NOISE FILTER(Rear Window Defogger)
REAR WINDOWDEFOGGER
1
J
1 2 3 4
25 GS 400 / GS 300
2
ACC
IG1AM1
3
1J3
40A A
M1
1K1
11
120A ALT
1
1J4
15ARADIONO. 2
1H10
1C1
D
D
3
4
A
A
A
A
IIRight side ofthe cowl panel
IFLeft kickpanel
EB Left fender
A
2F13
2G6
To Body
EC
U N
o. 2<
1–2><
1–3>
From E
ngine Control M
odule<
12–6><
12–7><
13–6>
7 IM1 6 IM1 9 IM1 8 IM1 13 IM2 4 IM2
2A1
15ATV
2H8
3G3
3H3
12 IJ2
6 A
+B1
16 A
ACC
5 IM2 14 IM2 16 IM2 17 IM2 15 IM2 8 IM2 7 IM2 6 IM2
3 A
TX+
9 A
TX–
5 B
VG
1 B
VR
2 B
SYVC
6 B
B
7 B
G
8 B
R
1 A
GND1
8 A
MPX2
2 A
MPX1
4 B
TX1+
12 B
TX1–
1 A
AUI+
6 A
AUI–
2 A
AUO+
7 A
AUO–
13 A
ACC
5 A
+B
3 B
TX+
8 B
TX–
7 B
VG
6 B
VR
2 B
SYNC
5 B
B
4 B
G
1 B
R
8 A
GND1
12 A
SPD
10 IL3
BM Quarter panel RH
A
From S
tereo Com
ponentA
mplifier<
27–1>
To Front Door
Speaker LH
<27–2>
To Radio and Player<27–3>
IHInstrument panelbrace RH
L–Y
B
GR
B
GR–R
GR
W–B
W–B
W–L
BB W
B–L
Y–B
R–Y
G–B
Y–G
GR
GR
L–B
L–R P V GR
GR
–R
GR
GR
–RG
R–R
L–W O Y W B G R
W–B
BR Y
L–B
L–R P V GR
GR
–R
L–W O Y W B G R
W–B
V–WV–W
W–B
W–B
W–B
L–R
G–Y
G–O
W–B
W–B
W–B
J13JUNCTIONCONNECTOR
J10JUNCTIONCONNECTOR
S 4SHIFT LOCKCONTROL ECU
J17JUNCTIONCONNECTOR
J 6JUNCTIONCONNECTOR
J22JUNCTIONCONNECTOR
U 1
KEY
INTE
RLO
CK
SO
LEN
OID
[UN
LOC
K W
AR
NIN
G SW
]
I22IGNITION SW
M 3 M 4,
MULTI–DISPLAY
A B
N 2 N 3,
NAVIGATION ECU
A B
P ow er S ource S h ift Lock LE X US Nav iga tion S ystem
1
1
2
2
BATTERY
10 7 8 1
5 9 3 2 4
A
A
To Speedometer[Comb. Meter]<28–4>
(Shielded )
(Shielded )
See MultiplexCommunicationSystem<1–8>
NSSD ATL NSSL AT4 ACC
E P1 SLS+ KLS+
From A
/T Indicator Light SW
[Park/Neutral P
osition SW
]<
12–6><
13–7>
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
1 2 3 4
26 GS 400 / GS 300
2
ACC
IG1AM1
3
1C3 1J3
40A AM
1
1K11F11
2H2
10A D
OM
E
2 2B
1
20A E
CU
–B1
120A A
LT
20A R
AD
IO N
O. 1
1 1
1
1 II4
1J4
1 1C
D D
2 IL2
A
A
2 D
+B1
5 D
+B2
3G3 3G1 3A1 3A3
3D13D3
1 IJ315 IM28 IM27 IM26 IM216 IM212 IM211 IM23 IM22 IM213 IM29 IM25 IM214 IM24 IM2
14 A
RR–
5 A
RR+
8 A
FR–
3 A
FR+
7 A
BEEP
13 A
RL–
4 A
RL+
9 A
FL–
10 A
FL+
1 A
GND1
6 A
AMP+
7 D
MUTE
6 D
ACC1
8 B
BEEP
2 B
FR+
6 B
FR–
1 B
RR+
5 B
RR–
5 A
TLMT
3 A
RL–
1 A
RL+
6 A
FL–
2 A
FL+
4 A
SE2
10 B
GND
4 B
AMP
9 B
MUTE
3 B
ACC
3 D
E
1 D
ACC
4 D
B
4 C
MUTE
9 C
TXM–
10 C
TXM+
7 C
CDL–
2 C
CDL+
6 C
CDR–
1 C
CDR+
IHInstrument panel brace RH
1 D
GND4
4 D
GND5
2 C
FL+
7 C
FL–
7 IM1 6 IM1
6 IJ3 11 IJ3
17 IB1 16 IB1
F 9FR
ON
T DO
OR
SP
EAK
ER LH
1 2
1 C
FR+
6 C
FR–
9 IM1 8 IM1
7 IJ3 12 IJ3
17 IK1 16 IK1F10FR
ON
T DO
OR
SP
EAK
ER R
H1 2
1 B
WF+
2 B
WF–
4 C
RR+
12 C
RR–
7 BB1 12 BB1 7 BA1 12 BA1
1 2 1 2 1 2
6 IL1
4 B12 A5 A5 B12 B
1 IL25 IL2
13 C
RL–
5 C
RL+
BMQuarter panel RH
A
+B ACC SGND DR+ DR– DL+ DL– TXM+ TXM– MUTE E
L–Y
GR
L–Y
B
Y
L–Y
GR
L–Y
GR
P–L
B–L
B–O
BR B W R G P O LG V L–O
W–B
P–L
B–L
B–O
BR B W R G P O LG V
B W R G P V L–B
W–B
L–Y
L–Y
GR
W–L
L–YL–Y
W
L–Y
L–YL–Y
L–Y
L–Y
L–Y
R–L
B–L
P V LG L
P V LG L
P V LG L
P V LG L
W–B
W–B
LG–B
LG–R
R W
R W B Y
B Y L–O
W–B
W–B
L–OBY
I22IGNITION SW
J18JUNCTIONCONNECTOR
D 6D/A CONVERTER
R14REAR DOORSPEAKER LH
R15REAR DOORSPEAKER RH
W 6WOOFER(Speaker)
J22JUNCTIONCONNECTOR
J21JU
NC
TION
CO
NN
ECTO
R
, R 3R 2 A B , R 4 C , DR 5
, S15S14 A B , CS16 , DS17
T 8 T 9,
TELEPHONE TRANSCEIVER ANDSPEAKER RELAY
A B
R adio and P laye r (N A K AM IC H I)P ower S ource
1
1 1 1
2
2 2 2
A
A
GR
15ARADIONO. 2
BATTERY
YB
5 4 2 10 9 12 11 1 6 7 14
(Shielded )
(Shielded )
(Shielded )
GR
GR
17 IM2
7 B
(Shielded )
(Shielded )
SGND
1 IC2 5 IC2
TWEETERTWEETER
CD AUTOMATIC CHANGER
RADIO AND PLAYER
STEREO COMPONENT AMPLIFIER
J
1234
27 GS 400 / GS 300
1
20A
EC
U–B
1
120A
ALT
20A
RAD
IO N
O. 1
111
2B 21II4
10A
DO
ME
2H 12
1F 111K 1
40A
AM
1
1J 3 1C 3
2
ACC
IG1 AM1
3
1J 4
15ARADIONO. 2
1C 1
3G 33A 33G 13A 1
3D 33D 1 2IJ3
4C
4A1A3B
12A
8B
4A
10B
10A
9B
9A3A
2B
2A
6B
7A
1B
1A
5B
6A
2A 1C 2C105
3
6B
4
1B
9
4B7B
2
3B
7
8B
1
2B
6
5B
8
IH Instrumentpanel braceRH
7C 8C
1IJ3
6IL1
4B
L–O
L–O
L–O
6D
IJ3 9
9IL3
12A
YY
Y
2D
IJ3 4
1IL3
5A
BB
B
1IL2
5B
BB
5IL2
12B
YY
12BA1
2
Y
5IC2
GR
GR
L–Y
L–Y
( *3)
1
7BA1
1IC2
1
BB1 12
2
IL2 7
BB1 7
8IL2
3D 1D
1
IL2 10
2
IL2 4
5D 4D
10IJ3 5IJ3
IK1 16 IK1 17
5C 1C
IB1 16 IB1 17
6C 2C
T 8T 9 ,
TELEPHONE TRANSCEIVER ANDSPEAKER RELAY
AB
8IJ3 3IJ3 12IJ3 7IJ3 6IJ311IJ3
11
D
2
222
D
22
111
1
Y B W R
LG–R
LG–B L LG V P
B W R
LG–R
LG–B L LG V P
W R
W R
LG–R
LG–B L LG
V P
W–B
W–B
W–B
( Shi
elde
d)
W ( *3) B G R V P L–O
( Shi
elde
d)
G W R B P L
Y–G P–L GR
L–Y
( *3)
( *3)
( *3)
L–Y
( *3)
GR
( *3)
W–B Y ( *1)
BR
( *1)
GR
L–Y
L–Y
L–Y
L–Y
W
R–L
B–L
L–Y
L–YW–L
L–Y
BATTERY
I22IGNITION SW
J18JUNCTIONCONNECTOR
F 9FRONT DOOR SPEAKER LH
F10FRONT DOOR SPEAKER RH
W 6WOOFER(Speaker)
R15REAR DOORSPEAKER RH
R14REAR DOORSPEAKER LH
C 6CD AUTOMATIC CHANGER
From Multi–Display<25–4>
R 2R 3 ,
RADIO AND PLAYER
AB
S 7S 8 ,
STEREO COMPONENT AMPLIFIER
AB
TX+TX–GND
BACCACCMUTEBUS+BUS–L+L–R+R–
ACCBGND
MUTETXM+TXM–CDL+CDL–CDR+CDR–
ACCMUTEBUS+BUS–SGNDL+L–R+R–MUTETXM+TXM–SGD4CDL+CDL–CDR+CDR–
E TLMT RL– RL+ RR– RR+ WF– WF+ FR– FR+ FL– FL+
+B
R 4 , C
S 9 , CS10 , D
L–B
( *1)
L–R
( *1)
( *2)
( *2)
To N
avig
atio
n E
CU
<25
–2>
From
Nav
igat
ion
EC
U<
25–2
><
25–3
>VP ( *1)
( *1)
W–B
B
Power SourceRadio and Player (Except NAKAMICHI)
* 1 : w/ LEXUS Navigation System* 2 : w/o LEXUS Navigation System* 3 : w/ CD Automatic Changer
TWEETERTWEETER
(*3)
( *3)
( *3)
( *3)
5C 4C 3C
B–W W–L
( *4)
W–R
( *4)
To Auto AntennaContro Relayand Motor<18–2>
* 4 : w/ Auto Antenna
( *4)
ANT ANTA ANTB
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
1 2 3 4
28 GS 400 / GS 300 (Cont. next page)
1
120A A
LT
1
1K1
40A AM
1
1J3
2
ACC
IG1AM1 4
1J1
10AGAUGE
1D4
1 A
W–L
RE
AR
LIGH
T
SE
AT B
ELT
OIL
PRE
SSU
RE
ECT S
NO
W
EC
T PWR
CR
UIS
E
FUEL
CH
ARG
E
OIL LE
VEL
FUEL
WATER
SPE
ED
OM
ETE
R
TAC
HO
METER
HE
AD
LIGH
TLE
VELIN
G
AB
S
VS
C O
FF
VSC
ODOMETERTRIP METER
B–Y
A/TP R N D M 4 3 2
18 A 16 B 15 B 13 B 14 B 5 B 17 B 16 A 3 B 4 B 6 B 10 B 2 A 3 A
SLIP
BR
AKE
OD
O/
TRIP
RE
SET
WA
SHE
R
TUR
N LH
TUR
N R
H
R–L
C12 C13,
COMBINATION METER
A B
10 IE2 16 IE1 15 IE1 13 IE1
12 IC1 19 IL3
3
2
1
2
3 IC1 7 IL3
A
B–Y
GR R G
BR
–Y
Y–R
V–W
Y–R
BR
–YB
–O
B–O
B–O
B–Y
B–Y
(*2 )
(*1 )
See H
eadlight Beam Level
Control System
<11–2>
From E
ngineC
ontrolM
odule<4–10>
From Igniter
<3–3>
See Turn S
ignal and Hazard
Warning Light System
<10–3>
<10–4>
From P
PS E
CU
<24–1>
From N
avigationE
CU
<25–3>
See VSC System<16–9><16–10>
F15FU
EL SE
ND
ER
F17FU
EL SEN
DER
(Sub )
J13JU
NC
TION
CO
NN
EC
TOR
P ower Source C omb ination M e te r * 1 : 1UZ–FE* 2 : 2JZ–GE
1
1
2
2
WB
–L
BATTERY
I22IGNITION SW
(*1 )
(*2 )
(*1 )
(*2 )
CPU
A V–W
A V–W
See W
iper and Washer
System
<19–4>
J
5 6 7 8
28 GS 400 / GS 300 (Cont’ d)
14 A 1 B
22 A 8 B 12 B 6 A 5 A 4 A
13 A 15 A
7 B11 B2 B12 A
TAIL
HE
AD
DO
OR
HIG
H B
EAM
SR
S
MA
LFUN
CTIO
NIN
DIC
ATO
R LA
MP
L
CPU
18 IE1
C12 C13,
COMBINATION METER
A B
YY
See H
eadlightS
ystem<
6–2><
7–3>
See M
ultiplexC
omm
unicationS
ystem<
1–8>
From P
assengerS
eat Belt
Warning Light
[Clock]<
18–4>
See SR
S S
ystem<
17–2>
11 IE11D5
1F13 1G6
II Right side ofthe cowl panel
IF Left kick panel
AA
A
A
W–B
O
W–B
W–B
W–B
W–B J 6
JUNCTIONCONNECTOR
J17JU
NC
TION
CO
NN
EC
TOR
See Engine C
ontrolSystem
<4–3>
<5–3>
See SR
S System
<17–2>
See Multiplex
Com
munication
System<
1–7><
1–8>
See Headlight
System<
6–2><
7–3>
C omb ina tion M e ter
R 7RHEOSTAT
9 A
From Illum
ination<
9–2>W
–G
E RV T
5 4 3
W–B
W G
BU
ZZER
(*4 )
(*3 )(*3 )
(*4 )
* 3 : USA* 4 : Canada, Taiwan
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
1 2 3 4
29 GS 400 / GS 300 (Cont. next page)
1
20A E
CU
–B1
120A A
LT
50A H
EA
TER
111
11
1
2
2 2
1K1
40A AM
1
1J3
2B2
5A EC
U–B
2
2F3
2
ACC
IG1AM1
3
4
1J1
10AHEATER
1F8
4
EB19
3 34
2
1
3
5
2
1
5
3
4
II12
33444
CC
C
IIRight side ofthe cowl panel
A
A
11 EB1
1 EA2
ECRH bank of thecylinder head(1UZ–FE)Front side of theintake manifold(2JZ–GE)
EDLH bank of thecylinder head(1UZ–FE)Rear side of theintake manifold(2JZ–GE)
A
A
To EngineControl Module<4–10><5–10>
From EngineControl Module<4–10><5–10>
2 IG1 1 IG1 3 IG1
3 B 2 B 1 B
1 A 2 A
M2 1
IIRight side ofthe cowl panel
1J4
15ARADIONO. 2
1C1
3G3
3E3
A
B
C
D
12 IJ15 IJ1
23 F
21 D
22 F
10 D
18 B
18 B
(1UZ–FE)
(2JZ–GE)
2 EA1
E
4 IJ1
EB Left fender
1
2
4
1
A u tomatic A ir C ond ition ingP ower S ource
3 1 2
4 3 2
1
B–L
W
L
R–L
W–R
W–L
R–L
R–L
GR
L–R
L–WL–W
L–R
R–L
GR
BR
LG–R
L–B
BR
W–B
W–B
W–B
BR
BR
BR
R BW
–B
R–L
L–B
R–L
L–O
L–WL–W
GR
VL–B
W–B
W–B
W–R
GR
L–W
L–R
R–L
LG–RW–B
W–BL–BL–B
R–L R–L
R–L
BR
BR
R–L
R–L
L
B–Y
L–Y
W–R
R–L
L–Y
W–R
R–L
GR
BATTERY
L–W
1
2R
–L
IG GAS S. G
GND PRE TAM E2
I22IGNITION SW
J13JUNCTIONCONNECTOR
J17JUNCTIONCONNECTOR
HTRRELAY
A/C COMPRELAY
To Body
ECU
No. 1<
1–13>
J 2JU
NC
TION
CO
NN
EC
TOR
BLOW
ER M
OTO
RC
ON
TRO
LLER
BA
B 3
B 4
,
B 2BLOWER MOTOR
A 3
A/C
MA
GN
ETIC
CLU
TCH
AN
D LO
CK S
EN
SO
R
E11EXHAUST GASSENSOR
E 3 E 5,
ENGINE CONTROL MODULE
B D E 7, F
A 4A/C
DU
ALPR
ESS
UR
E S
W
A 1
A/C
AMB
IEN
TTE
MP. SE
NS
ORTo Fan N
o. 3R
elay<30–3>
L–W
+B SI GND
M+ M–
J
5 6 7 8
29 GS 400 / GS 300 (Cont’ d)
A
B
C
D
E
15 A 3 A 2 A 1 A
11 IJ1
C
C
4 A 2 B 13 B 5 B 10 B 7 B 15 B
4 IH1 5 IH1 9 IH1 11 IH1 10 IH11 IH1
2
1
3 B 14 B 6 B 11 B 8 B 16 B
6 IH1 7 IH1 8 IH1 12 IH1 14 IH1 13 IH1
AMCPaAMHPaTPPaAOFAODTPOAMCDrAMHDrTPDrS5–3SG–5TEBLW
3E5
22 A
3G5
1C6
1G6 1F13
IFLeft kickpanel
II Right side ofthe cowl panel
A
A
A
14 A 19 A
13 IJ1 6 IJ1
1
2
18 A 10 A 21 A 6 A 7 A 4 B 1 B 9 B 17 A 16 A
A utomatic A ir C ond itioning
3 7 6 5 1 1 2 3
76531765317653
L–R
L–W
GR
W–R
R–L
W–R
GR
L–W
L–R R B–Y
B–O
W–L
R–B
R–W
B–W
B–R
W–R
W–G
GR
–R
W–B
G–W
G–B
G–R
GG–Y
G–O
B–O
B–WWB–L
B
R–GR
–L
R–G
B–R
B–Y
W B–W
B–O
B–Y
B–R
W B–W
B–O
B–Y
B–R
G–O
G–Y
GGG–Y
G–O
G–R
G–B
G–W
W–B
W–B
W–B
W–B
B–Y
B–R
B–Y
B–R
B–Y B–Y
B–R B–R
B–Y
W–R
W–R
R B–Y
B–Y
SG MFRS MREC TPI S5
GND
1
J18JUNCTIONCONNECTOR A15
A/C R
OO
MTE
MP
. SEN
SOR
A24AIR INLET CONTROL SERVO MOTOR
A16A/C SOLAR SENSOR To Telephone
Transceiver andS
peaker Relay
<23–4>
See M
ultiplexC
omm
unicationS
ystem<
1–8>
A17A/C
THE
RM
ISTO
R
A25AIR MIX CONTROL SERVO MOTOR(Driver Side)
A26AIR MIX CONTROL SERVO MOTOR(Front Passenger Side)
A27AIR VENT MODE CONTROL SERVO MOTOR
J 6JUNCTIONCONNECTOR
J17JUNCTIONCONNECTOR
A13 A14,
A/C CONTROL ASSEMBLY
A B
SG–1 DGS ACC +B TR SG–3 SG–4 AIF AIR TPI S5–4 S5–2 TSPa TSDr TEL IN MPX–
EBLeftfender
AW–B
M
M M M
5 A
MPX+
J OV
ER
ALL E
LEC
TR
ICA
L WIR
ING
DIA
GR
AM
1 2 3 4
30 GS 400 / GS 300
1
120AALT
15AAM2
50AFANMAIN
1 1
9 IA1
IG2
ST2
67 AM2
EE Under the ABS &TRAC & VSCactuator
1
1
2
3
5
4
1
11
1
1
11
30ACDSFAN
30ARDIFAN
1J6
5AIGN
1G7
4 EB1
5 II2
8 IA1
1
2
M
1 EB2
3
2
1
5
3
4
3
3 3 3
1
2
3
5
4
2
3
1
3 3 3 3
3 3 3 3
3 EB2
7 IA1
2 EB2
IG Left side ofthe cowl panel
5 EB12 EB1
EB Left fender
2
3
1
2
1
2
M
4 EB2
33
3
BATTERY
B
W–B
W–R
W–R
B–L
W–B
W–B
B–O
B–O
B–O
WW
W–L
B–O
W–R
W–R
B–O
W–R
G–Y
W–G
W–G
W–B
G–Y
B–W
W–L
W–R
W–L
G–Y
W–G
B–O
W–G
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–G
W–G
G–Y
L–W
W–B W–B
W–B W–B
W–R
W–G
R ad ia to r F an and C ondenser FanP ower S ource
ENG
MAIN
RE
LAY
R
B–O
11
22
2
2 2
1
1 1
B–W
J15JUNCTIONCONNECTOR
B–O
B–O
B–O
A A
E
EE
A
AA
L–W
B–O
A 2A/C CONDENSERFAN MOTOR
From A
/C C
OM
PR
elay<29–2>
FAN NO. 3RELAY
FAN NO. 1RELAY
FAN N
O. 2
RELA
Y
I22IGNITION SW
A 4A/C SINGLEPRESSURE SW
W 3WATERTEMP. SW
R 1RADIATORFAN MOTOR
(*1 )
(*2)
(*2 )
J14JUNCTIONCONNECTOR
* 2 : w/ Daytime Running Light* 1 : w/o Daytime Running Light
A
A
J 5JU
NC
TION
CO
NN
ECTO
R
B
W–R
W–B
MEMO
K POWER SOURCE (Current Flow Chart)
K
K POWER SOURCE (Current Flow Chart)
Engine Room No.1 R/B (See Page 22)Fuse System Page
5A ALT–S Charging 72
10A H–LP L UPR Headlight (w/o Daytime Running Light) 114
10A H LP R UPR Headlight (w/o Daytime Running Light) 114
10A HORN
Horn
Multiplex Communication System
Theft Deterrent and Door Lock Control
332
152
202
10A MPX–B
Automatic Light Control
Combination Meter
Interior Light
Key Reminder and Seat Belt Warning
Light Auto Turn Off
Luggage Compartment Door Opener
Multiplex Communication System
Power Seat (Driver’s Seat w/ Driving Position Memory)
Power Tilt and Power Telescopic
Power Window
Remote Control Mirror
Theft Deterrent and Door Lock Control
Wireless Door Lock Control
188
398
176
250
192
256
152
258
362
228
242
202
216
10A TURN–HAZ Turn Signal and Hazard Warning Light 138
15A AM2
Engine Control (1UZ–FE)
Engine Control (2JZ–GE)
Starting and Ignition (1UZ–FE)
Starting and Ignition (2JZ–GE)
76
92
64
68
15A ETCS
Cruise Control (1UZ–FE)
Cruise Control (2JZ–GE)
Engine Control (1UZ–FE)
Engine Control (2JZ–GE)
294
302
76
92
15A H–LP L LWRHeadlight (w/ Daytime Running Light)
Headlight (w/o Daytime Running Light)
118
114
15A H–LP R LWR
Fog Light
Headlight (w/ Daytime Running Light)
Headlight (w/o Daytime Running Light)
Multiplex Communication System
124
118
114
152
15A TEL Cellular Mobile Telephone 386
20A RADIO NO.1Radio and Player (Except NAKAMICHI)
Radio and Player (NAKAMICHI)
396
392
25A EFI
Cruise Control (1UZ–FE)
Cruise Control (2JZ–GE)
Electronically Controlled Transmission and A/T Indicator (1UZ–FE)
Electronically Controlled Transmission and A/T Indicator (2JZ–GE)
Engine Control (1UZ–FE)
294
302
274
284
76
∗ These are the page numbers of the first page on which the related system is shown.
K
Fuse System Page
25A EFI
Engine Control (2JZ–GE)
Engine Immobiliser System (1UZ–FE)
Engine Immobiliser System (2JZ–GE)
92
106
110
30A CDS FAN Radiator Fan and Condenser Fan 406
30A DRL NO.1 Headlight (w/ Daytime Running Light) 118
30A DRL NO.2 Headlight (w/ Daytime Running Light) 118
30A H–LP CLN Headlight Cleaner 334
30A RDI FAN Radiator Fan and Condenser Fan 406
40A ABS NO.2 VSC 310
40A MAIN
Automatic Light Control
Headlight (w/ Daytime Running Light)
Headlight (w/o Daytime Running Light)
Headlight Beam Level Control
Headlight Cleaner
Light Auto Turn Off
Multiplex Communication System
Starting and Ignition (1UZ–FE)
Starting and Ignition (2JZ–GE)
Theft Deterrent and Door Lock Control
188
118
114
338
334
192
152
64
68
202
50A FAN MAIN Radiator Fan and Condenser Fan 408
50A HEATER Automatic Air Conditioning 412
60A ABS NO.1 VSC 310
120A ALT
Automatic Light Control
Charging
Engine Control (1UZ–FE)
Engine Control (2JZ–GE)
Illumination
Light Auto Turn Off
Multiplex Communication System
Radiator Fan and Condenser Fan
Rear Window Defogger and Mirror Heater
Seat Heater
Taillight
Theft Deterrent and Door Lock Control
188
72
76
92
132
192
152
408
378
348
126
202
Engine Room No.3 R/B (See Page 24)Fuse System Page
15A H–LP L UPR Headlight (w/ Daytime Running Light) 118
15A H–LP R UPR Headlight (w/ Daytime Running Light) 118
Driver Side J/B (See Page 26)Fuse System Page
5A IGNCruise Control (1UZ–FE)
Cruise Control (2JZ–GE)
294
302
∗ These are the page numbers of the first page on which the related system is shown.
K POWER SOURCE (Current Flow Chart)
Fuse System Page
5A IGN
Electronically Controlled Transmission and A/T Indicator (1UZ–FE)
Electronically Controlled Transmission and A/T Indicator (2JZ–GE)
Engine Control (1UZ–FE)
Engine Control (2JZ–GE)
Radiator Fan and Condenser Fan
SRS
VSC
274
284
76
92
408
321
310
5A SRS–B
Combination Meter
Headlight (w/o Daytime Running Light)
SRS
Taillight
400
114
321
126
5A STARTER
Electronically Controlled Transmission and A/T Indicator (1UZ–FE)
Electronically Controlled Transmission and A/T Indicator (2JZ–GE)
Engine Control (1UZ–FE)
Engine Control (2JZ–GE)
Starting and Ignition (1UZ–FE)
Starting and Ignition (2JZ–GE)
274
284
76
92
64
68
7.5A OBDEngine Control (1UZ–FE)
Engine Control (2JZ–GE)
76
92
7.5A PANEL Illumination 132
10A FUEL OPN Fuel Lid Opener 344
10A GAUGE
Back–Up Light
Charging
Combination Meter
Cruise Control (1UZ–FE)
Cruise Control (2JZ–GE)
Electronically Controlled Transmission and A/T Indicator (1UZ–FE)
Electronically Controlled Transmission and A/T Indicator (2JZ–GE)
Engine Control (1UZ–FE)
Engine Control (2JZ–GE)
Headlight (w/ Daytime Running Light)
Headlight Beam Level Control
Key Reminder and Seat Belt Warning
LEXUS Navigation System
PPS
Shift Lock
Stop Light
Taillight
Turn Signal and Hazard Warning Light
VSC
Wiper and Washer
142
72
400
294
302
274
284
76
92
118
338
250
382
368
358
146
126
138
310
354
10A HEATER
Automatic Air Conditioning
Multiplex Communication System
Rear Window Defogger and Mirror Heater
412
152
378
∗ These are the page numbers of the first page on which the related system is shown.
K
Fuse System Page
10A TAIL Taillight 126
15A CIG Cigarette Lighter and Power Outlet 328
15A ECU–IG
Auto Antenna
Automatic Glare–Resistant EC Mirror
Automatic Light Control
Cellular Mobile Telephone
Electric Tension Reducer
Headlight Beam Level Control
Interior Light
Key Reminder and Seat Belt Warning
Light Auto Turn Off
Luggage Compartment Door Opener
Moon Roof
Multiplex Communication System
Power Seat (Driver’s Seat w/ Driving Position Memory)
Power Tilt and Power Telescopic
Power Window
PPS
Remote Control Mirror
Seat Heater
Theft Deterrent and Door Lock Control
VSC
Wireless Door Lock Control
390
342
188
386
352
338
176
250
192
256
372
152
258
362
228
368
242
348
202
310
216
15A FR FOGFog Light
Multiplex Communication System
124
152
15A RADIO NO.2
Auto Antenna
Automatic Air Conditioning
Clock
Interior Light
Key Reminder and Seat Belt Warning
LEXUS Navigation System
Light Auto Turn Off
Luggage Compartment Door Opener
Multiplex Communication System
Power Seat (Driver’s Seat w/ Driving Position Memory)
Power Tilt and Power Telescopic
Power Window
Radio and Player (Except NAKAMICHI)
Radio and Player (NAKAMICHI)
Remote Control Mirror
Shift Lock
Theft Deterrent and Door Lock Control
Wireless Door Lock Control
390
412
330
176
250
382
192
256
152
258
362
228
396
392
242
358
202
216
∗ These are the page numbers of the first page on which the related system is shown.
K POWER SOURCE (Current Flow Chart)
Fuse System Page
15A SRS–ACC SRS 321
15A STOP
Cruise Control (1UZ–FE)
Cruise Control (2JZ–GE)
Electronically Controlled Transmission and A/T Indicator (1UZ–FE)
Electronically Controlled Transmission and A/T Indicator (2JZ–GE)
Engine Control (1UZ–FE)
294
302
274
284
7615A STOP Engine Control (1UZ–FE)
Engine Control (2JZ–GE)
Multiplex Communication System
Stop Light
VSC
76
92
152
146
310
20A D FR DOOR
Automatic Light Control
Interior Light
Key Reminder and Seat Belt Warning
Light Auto Turn Off
Multiplex Communication System
Power Seat (Driver’s Seat w/ Driving Position Memory)
Power Tilt and Power Telescopic
Power Window
Remote Control Mirror
Theft Deterrent and Door Lock Control
Wireless Door Lock Control
188
176
250
192
152
258
362
228
242
202
216
20A D RR DOOR
Interior Light
Light Auto Turn Off
Multiplex Communication System
Power Window
Theft Deterrent and Door Lock Control
Wireless Door Lock Control
176
192
152
228
202
216
20A WASHERHeadlight Cleaner
Wiper and Washer
334
354
25A WIPER Wiper and Washer 354
30A D P/SEAT
Multiplex Communication System
Power Seat (Driver’s Seat w/ Driving Position Memory)
Power Seat (Driver’s Seat w/o Driving Position Memory)
152
258
270
Passenger Side J/B (See Page 28)Fuse System Page
5A ECU–B2
Automatic Air Conditioning
Headlight (w/ Daytime Running Light)
Multiplex Communication System
Power Seat (Driver’s Seat w/ Driving Position Memory)
412
118
152
258
10A DOME
Auto Antenna
Clock
Garage Door Opener
Interior Light
390
330
346
176
∗ These are the page numbers of the first page on which the related system is shown.
K
Fuse System Page
10A DOME
Light Auto Turn Off
Multiplex Communication System
Power Window
Radio and Player (Except NAKAMICHI)
Radio and Player (NAKAMICHI)
Theft Deterrent and Door Lock Control
Wireless Door Lock Control
192
152
228
394
392
202
216
10A MIR HTR Rear Window Defogger and Mirror Heater 378
15A TV LEXUS Navigation System 382
20A P FR DOOR
Interior Light
Key Reminder and Seat Belt Warning
Light Auto Turn Off
Luggage Compartment Door Opener
Multiplex Communication System
Power Seat (Driver’s Seat w/ Driving Position Memory)
Power Tilt and Power Telescopic
Power Window
Remote Control Mirror
Theft Deterrent and Door Lock Control
Wireless Door Lock Control
176
250
192
256
152
258
362
228
242
202
216
20A P RR DOOR
Interior Light
Light Auto Turn Off
Multiplex Communication System
Power Window
Theft Deterrent and Door Lock Control
Wireless Door Lock Control
176
192
152
228
202
216
20A SEAT HTR Seat Heater 348
25A S/ROOF Moon Roof 372
30A DEFOG Rear Window Defogger and Mirror Heater 378
30A P P/SEATPower Seat (Front Passenger’s Seat)
Power Tilt and Power Telescopic
272
362
∗ These are the page numbers of the first page on which the related system is shown.
L PART NUMBER OF CONNECTORS
Code Part Name Part Number Code Part Name Part Number
Note: Not all of the above part numbers of the connector are established for the supply. In case of orderinga connector or terminal with wire, please confirm in advance if there is supply for it using “Parts CatalogNews” (published by Parts Engineering Administration Dept.).
A1 A/C Ambient Temp. Sensor 90980–11070
A2 A/C Condenser Fan Motor 90980–10928
A3 A/C Magnetic Clutch and Lock Sensor 90980–11016
A4A/C Triple Pressure SW (A/C Dual andSingle Pressure SW) 90980–10943
A5 ABS & TRAC & VSC Actuator 90980–11151
A6 ABS & TRAC & VSC Actuator 90980–10895
A7 ABS & TRAC & VSC Actuator 90980–11413
A8 ABS Speed Sensor Front LH90980–11074
A9 ABS Speed Sensor Front RH90980–11074
A10 Accelerator Pedal Position Sensor 90980–11150
A11 Airbag Sensor Front LH90980–11856
A12 Airbag Sensor Front RH90980–11856
A13 A/C Control Assembly 90980–11392
A14 A/C Control Assembly 90980–11391
A15 A/C Room Temp. Sensor 90980–10825
A16 A/C Solar Sensor 90980–11053
A17 A/C Thermistor 90980–10825
A18 A/T Shift Position Illumination 90980–11212
A19 ABS &TRAC &VSC ECU 90980–11935
A20 ABS &TRAC &VSC ECU 90980–11476
A21 ABS &TRAC &VSC ECU 90980–11637
A22 ABS &TRAC &VSC ECU 90980–11638
A23 ABS Deceleration Sensor 90980–11182
A24 Air Inlet Control Servo Motor
A25 Air Mix Control Servo Motor (Driver Side)
A26Air Mix Control Servo Motor (FrontPassenger Side)
90980–11165
A27 Air Vent Mode Control Servo Motor
A28Airbag Squib (Front Passenger AirbagAssembly) 90980–11884
A29 Airbag Squib (Steering Wheel Pad) 90980–10850
A30 Automatic Light Control Sensor 90980–11107
A31 ABS Speed Sensor Rear LH 90980–11060
A32 ABS Speed Sensor Rear RH 90980–11300
A33 Ashtray Illumination Rear LH–
A34 Ashtray Illumination Rear RH–
A35 Auto Antenna Control Relay and Motor 90980–10799
B1 Brake Fluid Level Warning SW 90980–11009
B2 Blower Motor 90980–10385
B3 Blower Motor Controller 90980–11579
B4 Blower Motor Controller 90980–11667
B5 Body ECU No.190980–11877
B6 Body ECU No.290980–11877
B7 Buckle SW LH90980–11399
B8 Buckle SW RH90980–11399
C1 Camshaft Position Sensor 90980–10947
C2 Camshaft Timing Oil Control Valve
C3 Camshaft Timing Oil Control Valve LH90980–11162
C4 Camshaft Timing Oil Control Valve RH90980–11162
C5Crankshaft Position Sensor (1UZ–FE)
C5Crankshaft Position Sensor (2JZ–GE) 90980–10947
C6 CD Automatic Changer 90980–11923
C7 Center Airbag Sensor Assembly 90980–11869
C8 Center Airbag Sensor Assembly 90980–11872
C9 Center Airbag Sensor Assembly 90980–11867
C10 Cigarette Lighter 90980–11606
C11 Clock 90980–10799
C12 Combination Meter 90980–11915
C13 Combination Meter 90980–11914
C14 Combination SW 90980–11595
C15 Combination SW 90980–11614
C16 Combination SW 90980–11616
C17 Combination SW 90980–11594
C18 Cellular Phone (Hand Set) 90980–10998
C19 Cellular Phone (Hand Set) 90980–10798
D1 Data Link Connector 1 90980–11195
D2 Daytime Running Light Relay No.3 90980–10939
D3 Daytime Running Light Relay No.4 90980–10940
D4 Data Link Connector 3 90980–11665
D5 Daytime Running Light Relay (Main) 90980–11450
D6 D/A Converter 90980–11556
D7 Diode (Daytime Running Light) 90980–11251
D8Diode (Luggage Compartment Door OpenDetection) 90980–11071
D9 Door Courtesy Light Front LH
D10 Door Courtesy Light Front RH90980–11148
D11 Door Courtesy Light Rear LH90980–11148
D12 Door Courtesy Light Rear RH
D13 Door Courtesy SW Front LH
D14 Door Courtesy SW Front RH90980–11156
D15 Door Courtesy SW Rear LH90980–11156
D16 Door Courtesy SW Rear RH
D17 Door Lock Control SW RH 90980–11013
D18Door Lock Motor , Door Key Lock andUnlock SW and Door Lock Detection SWFront LH
90980–11858
D19Door Lock Motor , Door Key Lock andUnlock SW and Door Lock Detection SWFront RH
90980–11858
D20Door Lock Motor and Door Lock DetectionSW Rear LH 90980–11150
D21Door Lock Motor and Door Lock DetectionSW Rear RH 90980–11150
D22 Driver Door ECU 90980–11595
L
Code Part Name Part Number Code Part Name Part Number
D23 Driver Door ECU 90980–11648
D24 Driver Door ECU 90980–11594
D25 Driving Position Memory SW 90980–11165
D26Daytime Running Light Resistor or ShortConnector 90980–10928
E1Electronically Controlled TransmissionSolenoid 90980–11151
E2 Engine Control Module 90980–11421
E3 Engine Control Module 90980–11476
E4 Engine Control Module 90980–11586
E5 Engine Control Module 90980–11637
E6 Engine Control Module 90980–11638
E7 Engine Control Module 90980–11423
E8 Engine Coolant Temp. Sensor 90980–10736
E9 Engine Hood Courtesy SW 90980–11189
E10 Engine Oil Level Sensor 90980–11235
E11 Exhaust Gas Sensor 90980–10831
E12Electronically Controlled TransmissionPattern Select SW 90980–11165
F1 Front Fog Light LH90980–11096
F2 Front Fog Light RH90980–11096
F3 Front Side Marker Light LH90980–11162
F4 Front Side Marker Light RH90980–11162
F5 Front Turn Signal and Parking Light LH90980–10942
F6 Front Turn Signal and Parking Light RH90980–10942
F7 Front Wiper Motor 90980–11599
F8 Fuel Lid Opener SW 90980–10825
F9 Front Door Speaker LH90980–10935
F10 Front Door Speaker RH90980–10935
F11 Front Passenger Door ECU 90980–11594
F12 Front Passenger Door ECU 90980–11648
F13 Front Passenger Door ECU 90980–11595
F14 Fuel Lid Opener Motor 90980–11150
F15 Fuel Pump and Sender 90980–11077
F16 Fuel Pump Control ECU 90980–10862
F17 Fuel Sender (Sub) 90980–11140
G1 Generator –
G2 Generator 90980–11349
G3 Glove Box Light 90980–11148
G4 Glove Box Light SW 90980–11098
G5 Garage Door Opener 90980–11212
H1 Headlight Beam Level Control ECU 90980–10897
H2 Headlight Beam Level Control ECU 90980–10891
H3 Headlight Beam Level Control Motor 90980–11144
H4 Headlight Cleaner Control Relay 90980–10939
H5 Headlight Cleaner Motor 90980–11410
H6 Headlight Control ECU LH90980–11255
H7 Headlight Control ECU RH90980–11255
H8 Headlight LH (High) 90980–11095
H9 Headlight LH (Low) 90980–11096
H10 Headlight RH (High) 90980–11095
H11 Headlight RH (Low) 90980–11096
H12
Heated Oxygen Sensor (Bank 1 Sensor 1)(1UZ–FE) 90980–10869
H12Heated Oxygen Sensor (Bank 1 Sensor 1)(2JZ–GE) 90980–11028
H13 Heated Oxygen Sensor (Bank 1 Sensor 2)90980 11028
H14 Heated Oxygen Sensor (Bank 2 Sensor 1) 90980–10869H14 Heated Oxygen Sensor (Bank 2 Sensor 1) 90980–10869
H15 Height Control Sensor (Front) 90980–11929
H16 Horn LH90980–10619
H17 Horn RH90980–10619
H18 Hazard SW 90980–10801
H19 Headlight Cleaner SW 90980–10797
H20 Heated Oxygen Sensor (Bank 1 Sensor 2)90980–11028
H21 Heated Oxygen Sensor (Bank 2 Sensor 2)90980–11028
H22 Height Control Sensor (Rear) 90980–11298
H23 High Mounted Stop Light (Bulb) 90980–10908
H24 High Mounted Stop Light (LED) 90980–11368
I1 Igniter 90980–11653
I2 Ignition Coil and Igniter No.1
I3 Ignition Coil and Igniter No.2
I4 Ignition Coil and Igniter No.3
I5 Ignition Coil and Igniter No.490980–11150
I6 Ignition Coil and Igniter No.590980–11150
I7 Ignition Coil and Igniter No.6
I8 Ignition Coil and Igniter No.7
I9 Ignition Coil and Igniter No.8
I10 Ignition Coil No.1
I11 Ignition Coil No.2 90980–11246
I12 Ignition Coil No.3
I13 Injector No.1
I14 Injector No.2
I15 Injector No.3
I16 Injector No.490980–11153
I17 Injector No.590980–11153
I18 Injector No.6
I19 Injector No.7
I20 Injector No.8
I21 Ignition Key Cylinder Light 90980–10906
I22 Ignition SW 90980–11615
I23 Inner Mirror 90980–11186
L PART NUMBER OF CONNECTORS
Code Part Name Part Number Code Part Name Part Number
Note: Not all of the above part numbers of the connector are established for the supply. In case of orderinga connector or terminal with wire, please confirm in advance if there is supply for it using “Parts CatalogNews” (published by Parts Engineering Administration Dept.).
I24 Interior Light Rear LH 90980–11187
I25 Interior Light Rear RH 90980–11187
J1 Junction Connector 90980–10803
J2 Junction Connector 90980–11542
J3 Junction Connector90980–11661
J4 Junction Connector90980–11661
J5 Junction Connector 90980–10803
J6 Junction Connector 90980–10976
J7 Junction Connector 90980–11542
J8 Junction Connector 90980–11398
J9 Junction Connector 90980–11915
J10 Junction Connector90980–11542
J11 Junction Connector90980–11542
J12 Junction Connector 90980–10803
J13 Junction Connector90980–11915
J14 Junction Connector90980–11915
J15 Junction Connector 90980–11542
J16 Junction Connector 90980–11539
J17 Junction Connector 90980–10803
J18 Junction Connector90980–11542
J19 Junction Connector90980–11542
J20 Junction Connector 90980–10976
J21 Junction Connector 90980–11398
J22 Junction Connector 90980–10976
J23 Junction Connector90980–10803
J24 Junction Connector90980–10803
K1 Knock Sensor 190980–11166
K2 Knock Sensor 290980–11166
L1 Luggage Compartment Door Opener SW 90980–10860
L2 License Plate Light LH90980–11148
L3 License Plate Light RH90980–11148
L4 Light Failure Sensor 90980–10803
L5Luggage Compartment Door Courtesy SWand Opener Motor 90980–10825
L6Luggage Compartment Door Key UnlockSW 90980–11212
L7 Luggage Compartment Light 90980–11148
L8 Lumbar Support Control SW (Driver’s Seat)
L9Lumbar Support Control SW (FrontPassenger’s Seat)
90980–10601
M1 Mass Air Flow Meter 90980–11317
M2 Master Cylinder Pressure Sensor 90980–10845
M3 Multi–Display 90980–11562
M4 Multi–Display 90980–11475
M5 Moon Roof Control ECU 90980–10997
M6 Moon Roof Control SW 90980–11488
M7 Mirror Retractor SW 90980–11090
N1 Noise Filter (Ignition) 90980–10843
N2 Navigation ECU 90980–11542
N3 Navigation ECU 90980–10799
N4 Noise Filter (High Mounted Stop Light) 90980–11094
N5 Noise Filter (Rear Window Defogger) 90980–11259
N6 Noise Filter (Stop Light) 90980–10916
O1 O/D Direct Clutch Speed Sensor 90980–11156
O2 Oil Pressure SW 90980–11363
P1 Park/Neutral Position SW 90980–11332
P2 Power Steering Oil Pressure SW 90980–10974
P3 PPS Solenoid 90980–11003
P4 Parking Brake SW 90980–10871
P5 Power Outlet 90980–10760
P6 PPS ECU 90980–10797
P7 Personal Light 90980–11187
P8 Power Window Control SW Front RH
P9 Power Window Control SW Rear LH 90980–10797
P10 Power Window Control SW Rear RH
P11 Power Window Master SW 90980–11469
P12 Power Window Motor Front LH90980–11011
P13 Power Window Motor Front RH90980–11011
P14 Pretensioner LH90980–11862
P15 Pretensioner RH90980–11862
P16 Power Seat Control SW (Driver’s Seat)
P17Power Seat Control SW (Front Passenger’sSeat)
90980–10997
P18 Power Seat ECU 90980–11527
P19 Power Seat ECU 90980–11502
P20Power Seat Motor (Driver’s Seat FrontVertical Control)
P21Power Seat Motor (Driver’s Seat LumbarSupport Control)
P22Power Seat Motor (Driver’s Seat RearVertical Control)
P23Power Seat Motor (Driver’s Seat RecliningControl)
P24Power Seat Motor (Driver’s Seat SlideControl) 90980–10825
P25Power Seat Motor (Front Passenger’s SeatFront Vertical Control)
P26Power Seat Motor (Front Passenger’s SeatLumbar Support Control)
P27Power Seat Motor (Front Passenger’s SeatRear Vertical Control)
P28Power Seat Motor (Front Passenger’s SeatReclining Control)
L
Code Part Name Part Number Code Part Name Part Number
P29Power Seat Motor (Front Passenger’s SeatSlide Control) 90980–10825
P30Power Seat Position Sensor (Driver’s SeatFront Vertical Control) 90980–10296
P31Power Seat Position Sensor (Driver’s SeatRear Vertical Control)
P32Power Seat Position Sensor (Driver’s SeatReclining Control) 90980–10908
P33Power Seat Position Sensor (Driver’s SeatSlide Control)
R1 Radiator Fan Motor 90980–10928
R2 Radio and Player 90980–10996
R3 Radio and Player 90980–10997
R4Radio and Player (Except NAKAMICHI) 90980–11165
R4Radio and Player (NAKAMICHI) 90980–10803
R5 Radio and Player 90980–10799
R6 Remote Control Mirror SW 90980–11657
R7 Rheostat 90980–11165
R8 Rear Combination Light LH 90980–11587
R9 Rear Combination Light LH 90980–11399
R10 Rear Combination Light RH 90980–11587
R11 Rear Combination Light RH 90980–11399
R12 Rear Door LH ECU90980–11877
R13 Rear Door RH ECU90980–11877
R14 Rear Door Speaker LH90980–10935
R15 Rear Door Speaker RH90980–10935
R16
Remote Control Mirror LH (w/ DrivingPosition Memory) 90980–11590
R16Remote Control Mirror LH (w/o DrivingPosition Memory) 90980–10798
R17
Remote Control Mirror RH (w/ DrivingPosition Memory) 90980–11590
R17Remote Control Mirror RH (w/o DrivingPosition Memory) 90980–10798
S1 Starter 90980–11400
S2 Starter –
S3 Seat Heater SW 90980–10797
S4 Shift Lock Control ECU 90980–11450
S5 Step Light LH–
S6 Step Light RH–
S7 Stereo Component Amplifier 90980–10803
S8 Stereo Component Amplifier 90980–10799
S9 Stereo Component Amplifier 90980–10997
S10 Stereo Component Amplifier 90980–10996
S11 Stop Light SW 90980–11118
S12 Side Airbag Sensor LH90980–11857
S13 Side Airbag Sensor RH90980–11857
S14 Stereo Component Amplifier 90980–11556
S15 Stereo Component Amplifier 90980–11591
S16 Stereo Component Amplifier 90980–11542
S17 Stereo Component Amplifier 90980–11535
S18Seat Belt Warning Occupant DetectionSensor 90980–10860
S19 Seat Heater (Driver’s Seat Back)
S20 Seat Heater (Driver’s Seat Cushion)
S21 Seat Heater (Front Passenger’s Seat Back) 90980–10825
S22Seat Heater (Front Passenger’s SeatCushion)
S23 Side Airbag Squib LH90980–11864
S24 Side Airbag Squib RH90980–11864
T1 Theft Deterrent Horn 90980–10619
T2 Throttle Control Motor 90980–10942
T3Throttle Position Sensor (1UZ–FE) 90980–11037
T3Throttle Position Sensor (2JZ–GE) 90980–10711
T4 Telephone Microphone 90980–11369
T5 Tilt and Telescopic ECU 90980–10801
T6 Transponder Key Amplifier 90980–10933
T7 Turn Signal Flasher 90980–10799
T8 Telephone Transceiver and Speaker Relay 90980–10802
T9 Telephone Transceiver and Speaker Relay 90980–10803
T10 Tension Reducer Solenoid LH90980–11369
T11 Tension Reducer Solenoid RH90980–11369
U1Unlock Warning SW and Key InterlockSolenoid 90980–10795
V1Vehicle Speed Sensor (ElectronicallyControlled Transmission) 90980–11156
V2VSV (ACIS) (1UZ–FE)
90980 11156
V2VSV (ACIS) (2JZ–GE) 90980–11149
V3 VSV (EVAP) 90980–11156
V4 VVT Sensor LH90980–10947
V5 VVT Sensor RH90980–10947
V6 VSC Off SW 90980–11494
V7 VSC Warning Buzzer 90980–10906
V8 Vanity Light LH90980–11369
V9 Vanity Light RH90980–11369
V10 Vapor Pressure Sensor 90980–11860
V11 VSV (Vapor Pressure Sensor) 90980–11859
W1 Washer Level Warning SW 90980–11068
W2 Washer Motor 90980–10981
W3 Water Temp. SW 90980–11235
W4 Wireless Door Lock Buzzer 90980–11156
W5 Wireless Door Lock Control ECU 90980–11165
W6 Woofer (Speaker) 90980–10825
Y1 Yaw Rate Sensor 90980–11904