T-SB-0078-09 March 2, 2009

"No Start" DTC B2799

ServiceCategory Vehicle Interior

Section Theft Deterrent/Keyless Entry Market USA

Applicability

YEAR(S) MODEL(S) ADDITIONAL INFORMATION

2007 – 2008 Tundra

Introduction

Some customers may experience a crank and “No start” condition accompanied by immobiliser DTCB2799 and/or B2780, B2784, B2796, B2797, B279A. A production change has been made to theTransponder key ECU. Use the following repair procedure to address these customer concerns.

Warranty Information

OP CODE DESCRIPTION TIME OFP T1 T2

EL8053 R & R Transponder Key Computer Assembly 8.5 89780-0C011 01 73

APPLICABLE WARRANTY• This repair is covered under the Toyota Comprehensive Warranty. This warranty is in effect for

36 months or 36,000 miles, whichever occurs first, from the vehicle’s in-service date.

• Warranty application is limited to correction of a problem based upon a customer’s specificcomplaint.

Parts Information

PREVIOUS PART NUMBER CURRENT PART NUMBER PART NAME QTY

89780-0C011 Same Transponder Key Computer Assy 1

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"No Start" DTC B2799

Production Change Information

This TSB applies to vehicles produced BEFORE the Production Change Effective VINs shown below.

MODEL PLANT ENGINE DRIVETRAIN PRODUCTION CHANGE EFFECTIVE VIN

2UZ-FE 2WD 5TBRT541*8S459822

2UZ-FE 4WD 5TBBT541*8S461788

3UR-FE 2WD 5TBEV541*8S478648TMMI

3UR-FE 4WD 5TBDV581*8S508332

5TFJU521*8X0037821GR-FE 2WD

5TFRU541*8X010832

5TFJT521*8X002322

5TFRT541*8X0219212UZ-FE 2WD

5TFST541*8X002114

5TFKT521*8X002179

5TFBT541*8X0123432UZ-FE 4WD

5TFCT541*8X002317

5TFJV521*8X002886

5TFEV541*8X0551963UR-FE 2WD

5TFSV541*8X005572

5TFKV521*8X002885

5TFDV581*8X059442

Tundra

TMMTX

3UR-FE 4WD

5TFCV541*8X007115

Required Tools & Equipment

REQUIRED EQUIPMENT SUPPLIER PART NUMBER QTY

TIS Techstream*

NOTE: Software version 4.00.017 or later isrequired.

TSPKG1 1

R-134a Refrigerant Recovery/Recycling Machine

ADE

Robinair ROB34200 (orequivalent) 1

* Essential SST.

NOTEAdditional TIS Techstream units and refrigerant service equipment may be ordered by callingApproved Dealer Equipment (ADE) at 1-800-368-6787.

© 2009 Toyota Motor Sales, USA

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"No Start" DTC B2799

Required Tools & Equipment (Continued)

SPECIAL SERVICE TOOLS (SST’S) PART NUMBER QTY

Plastic Pry Tool Set* 00002-06000-01 1

* Essential SST.

NOTEAdditional SSTs may be ordered by calling 1-800-933-8335.

Repair Procedure

1. Verify that the vehicle will crank but not start.

2. Perform Health check and look for any immobiliser system DTCs.

3. If there are any immobiliser DTC’s present, test the vehicle using all keys. If the condition ispresent with all the keys, proceed to step 4. If the problem is isolated to a single key, refer to therepair manual diagnostic chart for the specific DTC.

4. Replace transponder key ECU.

• 2007 / 2008 Tundra:

Vehicle Interior – Theft Deterrent / Keyless Entry – Engine Immobiliser – TransponderKey ECU: “Removal”

A. Location of the Transponder Key ECU Assembly is on the Air Conditioning Unit betweenbulkhead on the left.

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"No Start" DTC B2799

Repair Procedure (Continued)

Figure 1.

B. Back side of Air Conditioning Unit, where theTransponder Key ECU Assembly is mounted.

Figure 2.

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"No Start" DTC B2799

Repair Procedure (Continued)

C. Remove the Transponder Key ECU Assemblyfrom the Air Conditioning Unit, by sliding thelower half out and moving downwards torelease the top.

Figure 3.

1 Slide Transponder Key ECU Assembly Out

2 Slide Transponder Key ECU Assembly Down

5. Install new Transponder Key ECU.

• 2007 / 2008 Tundra:

Vehicle Interior – Theft Deterrent / Keyless Entry – Engine Immobiliser – Transponder KeyECU: “Installation”

6. Connect TIS Techstream and clear all stored DTCs.

7. Verify Proper Operation of Immobilizer System.

© 2009 Toyota Motor Sales, USA