IMMOBILISER DIAGNOSTIC MANUAL S10/S8/S6+/S6/S4/S2
Transcript of IMMOBILISER DIAGNOSTIC MANUAL S10/S8/S6+/S6/S4/S2
DIAGNOSTIC MANUALIMMOBILISERSCORPIO mHAWK/m2DiCRS10/S8/S6+/S6/S4/S2
MAN - 00281
REVISION - 1DEC 2014- Published by - Service Engineering Technical Hub
THE NEW GENERATION
NOTHING ELSE WILL DO
The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
CONTENTS
HOW TO USE THIS MANUAL…………………………………………………………………………………………………………03
OVERVIEW OF THE VEHICLE COMMUNICATION NETWORK……………………………………………………04
WARRANTY & OTHER INFORMATION………………………………………………………………………………………….06
KEY ASSIGNMENT GUIDELINE……………………………………………………………………………………………………….07
KEY ASSIGNMENT PROCESS………………………………………………………………………………………………………….08
EMS ECU REPLACEMENT ……………………………………………………………………………………………………………….09
IMMOBILISER ECU REPLACEMENT …………………………………………………………………………………………….10
LIST OF UNAVAILABLE SERVICES …………………………………………………………………………………………………11
INTERMITTENT PROBLEMS……………………………………………………………………………………………………………..11
INDEX OF DTC CODES……………………………………………………………………………………………………………………….16
USING DIAGNOSTIC TOOL ……………………………………………………………………………………………………………….71
TROUBLESHOOTING CHART ……………………………………………………………………………………………………………87
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
HOW TO USE THIS MANUAL
This is a combined immobiliser diagnostic manual for all variants of SCORPIO (mHAWK and
m2DiCR). The manual is divided in to two parts. The first part outlines the procedure to be
followed when any of the components, viz keys, EMS ECU or immobiliser ECU(ICU), needs to be
replaced. The seconds part outlines the trouble shooting process.
The following is the structure of the Immobiliser Diagnostic Manual –
Combination of error codes
Reason
Check lamp status
Vehicle behavior
Probable cause
Trouble shooting steps
The DTCs for immobiliser are generated at the ICU as well as at the engine management
system (EMS) ECU. Hence it is essential that after looking at the DTC at ICU, the DTC at the
EMS ECU should also be checked. Based on the combination of DTCs, the possible causes and
the corrective actions to be taken.
It is also essential to clear the DTCs In both ICU and EMS ECU. The diagnostic manual should
always be used along with the vehicle’s wiring manual (MAN-OO268)
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
OVERVIEW OF VEHICLE COMMUNICATION NETWORK
DIAGNOSTIC MANUAL SCORPIO IMMOBILISER
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
ABBREVIATIONS
EMS Engine Management System
ABS Antilock Braking System
MBFM Mahindra Body Function Module
IC Instrument Cluster
SRS Supplementary Restraint System
IS Infotainment System
HVAC Heating Ventilation and Air Conditioning
RPAS Reverse Park Assist System
ECU Electronic Control Unit
EHCU Electronic Hydraulic Control Unit
WSS Wheel Speed Sensor
EBD Electronic Brake Distribution
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
WARRANTY & OTHER INFORMATION
Replacement of any of the EMS ECU or ICU controller requires approval of the TEKline.
Ensure that a TAR is raised# in the TEKnet website for approval. While raising a warranty
claim, the TAR no should be quoted on the warranty claim.
# Only a trained and certified CoTEK can raise a TAR (in TEKnet website)
RECOMMENDED TROUBLE SHOOTING PROCESS
Customer complaint
Record/Understand Customer Verbatim
- What happened? - When it happened? - What was the event before that? - Does it happen all the time? - Does it happen only in some condition?
Search for Published quick solution in TEKnet.
Perform diagnostic as per Technical
documents
Contact TEKliner with TAR
(Technical Assistance Request)
Visual inspection
- Look for any damage
- Check the fuse, insulators and wiring harness
routing
- Look for signs of oxidation
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
KEY ASSIGNMENT GUIDELINE
Note – only two keys/vehicle possible at any point of time
Duplicate key should be ordered after customer verification by the dealer
Fill up the DKP format ( duplicate key request ) and mail it to [email protected]
Once the new key is received, follow the key assignment process as below.
Key
Additonal key
Not possible
Key lost / stolen/
failure
Reassign Existing key
Order Mechanical Key (DKR)
Assign New
Key
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
KEY ASSIGNMENT PROCESS
Whenever the key is replaced and if the vehicle is with keyless entry then the remote learning
has to be performed
Key Request
• Customer Verification
Key Order
• Order new key using the Duplicate Key Request (DKR) process.
TPK1
• Select "Key Programming"
•SMART tester will generate Tool Programming Key-1 - Valid for 48 hours.
•Raise a TAR along with Tool Programming Key – 1 (TPK1)
ASC1
• TEKline will provide After Sales Code - 1 (ASC1) based on TPK1
• ASC1 is valid until TPK1 is valid.
TPK2
• Based on the ASC1, reassign key. SMART tester will generate Tool Programming Key – 2 (TPK2)
• TPK2 to be provided to TEKliner
ASC2 • TEKline will provide After Sales code -2 (ASC2)
Finish
• CoTEK will enter the ASC2 and complete the Key assignmnet session
• Close TAR
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
EMS ECU REPLACEMENT
For EMS dataset flashing procedure, refer to EMS diagnostic manual.
Order for blank ECU
FLash the ECU using the Flash tool with the correct
VIN no and the correct dataset.
Do the ECU assignment
process
TPK1
• Select "EMS ECU Programming"
• SMART tester will generate code - Valid for 48 hours.
• Raise a TAR along with Tool Programming Key – 1 (TPK1) generated from SMART tester
ASC1
• TEKline will provide After Sales Code - 1 (ASC1) based on Access Password
• ASC1 is valid until TPK1 is valid
TPK2
• Based on the entry password, learn EMS ECU. SMART tester will generate Tool Programming Key – 2 (TPK2)
• TPK2 to be provided to TEKliner
ASC2 • TEKline will provide After Sales Code - 2 (ASC2)
Finish
• CoTEK will enter the ASC2 and complete the EMS learning session
• Close TAR
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
IMMOBILIZER ECU (ICU) REPLACEMENT
Order for blank Immobilizer ECU
Do the Immobilizer ECU assignment
process
TPK1
• Select "Immobiliser ECU programming"
• SMART tester will generate code - Valid for 48 hours.
• Raise a TAR along with Tool Programming Key – 1 (TPK1) generated from SMART tester
ASC1
• TEKline will provide After Sales Code - 1 (ASC1) based on TPK1
• ASC1 is valid until TPK1 is valid
TPK2
• Based on the ASC1, learn ICU/Reassign keys. SMART tester will generate Tool Programming Key – 2 (TPK2)
• TPK2 to be provided to TEKliner
ASC2
• TEKline will provide After Sales Code - 2 (ASC2)
Finish
• CoTEK will enter the ASC2 and complete the ICU learning session
• Close TAR
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
LIST OF UNAVAILABLE SERVICES
The following actions are not possible –
1. Replacement of EMS ECU when both keys are not available 2. Replacement of Immobilizer ECU (ICU) when both keys are not available 3. Replacement of EMS ECU and Immobilizer ECU (ICU) when both keys are not available 4. Simultaneous replacement of EMS ECU and ICU.
Contact TEKline for any advice/assistance
INTERMITTENT PROBLEMS
Check the following for intermittent problems
Poor mating of the connector halves/damage of connector locking
Terminals not fully seated in the connector body
Damage of harness and terminals
Connector pin separation from wire
Corrosion on pin contact points
This manual can be used for both m2DiCR and mHAWK variants
However there are some specific DTC’s which are applicable only to either mHAWK or
m2DiCR variants. For such causes the applicability is mentioned along with the DTC’s
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
INDEX OF DTCS (mHAWK)
ERROR CODES IN ICU
Code Label
P8040 Transponder Missing/No Transponder
P8041 Invalid Transponder
P8042 Wrong Transponder
P8043
No Transponder is Learnt
P8044 No ECM Challenge
P8045 ECM Authentication Failed
P8048 F mismatch
P8049 No ECM Acknowledgement
P804A Negative Acknowledgement
ERROR CODES IN EMS
Code Label
P1832 Immobilizer Authentication Failed
P183F
No ICU Response
P183B
Locked State
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
INDEX OF DTCS (m2DiCR)
ERROR CODES IN ICU
Code Label
P8040 Transponder Missing/No Transponder
P8041 Invalid Transponder
P8042 Wrong Transponder
P8043
No Transponder is Learnt
P8044 No ECM Challenge
P8045 ECM Authentication Failed
P8048 F mismatch
P8049 No ECM Acknowledgement
P804A Negative Acknowledgement
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
ERROR CODES IN EMS
Code Label
P1832 Authentication Failed/Immobilized Condition
P183E Immobilizer related EEPROM Error
P1833 F( ) result mismatch/Signature Mismatch
P1834
G( ) result mismatch
P0633 Immobilizer not programmed
P183F No response from ICU
U1117 Immobilizer Node absent
U1417 Invalid format for Immo-key message
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Error codes come in combinations and each combination has its own interpretation which is
given in the following pages according to priority. At any time if there are more codes than any
combination given below, the first combination to be attended will be the one higher in the
below table and then proceed to the next one. Contact your TEKline in case you come across
any difficulty.
A troubleshooting chart, which is the tabular form of this entire manual, is given in page 87-91.
Suggest using that along with the wiring diagram of the vehicle to develop troubleshooting skill.
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The repair methods given by the manufacturer in this document are based on the technical specications, current at the time of release. The methods may be modied as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 201 4 Mahindra & Mahindra Ltd.
Combination - 1 Page
ICU EMS
21
Code Description Code Description
P8040 Transponder Missing/No
Transponder P1832 Immobilizer Authentication Failed
P183F No ICU Response
Combination - 2 Page
ICU EMS
23 Code Description Code Description
P8041 Invalid Transponder P1832 Immobilizer Authentication Failed
P183F No ICU Response
Combination - 3 Page
ICU EMS
25 Code Description Code Description
P8042 Wrong Transponder P1832 Immobilizer Authentication Failed
P183F No ICU Response
Combination - 4 Page
ICU EMS
27 Code Description Code Description
P8043 No Transponder is Learnt P1832 Immobilizer Authentication Failed
P183F No ICU Response
Combination - 5 Page
ICU EMS
28 Code Description Code Description
P8044 No ECM Challenge P1832 Immobilizer Authentication Failed
P183F No ICU Response
DTC COMBINATIONS - mHAWK VARIANTS
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Combination - 6 Page
ICU EMS
31Code Description Code Description
P8044 No ECM Challenge
Combination - 7 Page
ICU EMS
33 Code Description Code Description
P804A Negative Acknowledgement P1832 Immobilizer Authentication Failed
P8045 ECM Authentication Failed
Combination - 8 Page
ICU EMS
36
Code Description Code Description
P8048 F() mismatch P1832 Immobilizer Authentication Failed
P8045 ECM Authentication Failed
Combination - 9 Page
ICU EMS
39Code Description Code Description
P8049 No ECM Acknowledgement P1832 Immobilizer Authentication Failed
P8045 ECM Authentication Failed
Combination - 10 Page
ICU EMS
40 Code Description Code Description
P1832 Immobilizer Authentication Failed
P183F No ICU Response
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
DTC COMBINATIONS –m2DiCR VARIANT
Combination - 1 Page
ICU EMS
21
Code Description Code Description
P8040 Transponder Missing/No
Transponder P1832 Immobilizer Authentication Failed
P183F No ICU Response
U1417 Immo Message Content Failure
Combination - 2 Page
ICU EMS
23
Code Description Code Description
P8041 Invalid Transponder P1832 Immobilizer Authentication Failed
P183F No ICU Response
U1417 Immo Message Content Failure
Combination - 3 Page
ICU EMS
25
Code Description Code Description
P8042 Wrong Transponder P1832 Immobilizer Authentication Failed
P183F No ICU Response
Combination - 4 Page
ICU EMS
27
Code Description Code Description
P8043 No Transponder is Learnt P1832 Immobilizer Authentication Failed
P183F No ICU Response
U1417 Immo Message Content Failure
Combination - 5 Page
ICU EMS
28
Code Description Code Description
P8044 No ECM Challenge P1832 Immobilizer Authentication Failed
P183F No ICU Response
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Combination - 6 Page
ICU EMS
31 Code Description Code Description
P8044 No ECM Challenge
Combination - 7 Page
ICU EMS
33
Code Description Code Description
P8045 ECM Authentication Failed P1832 Immobilizer Authentication Failed
P1834 G( ) result mismatch
Combination - 8 Page
ICU EMS
36
Code Description Code Description
P8048 F() mismatch P1832 Immobilizer Authentication Failed
P1833 F( ) result mismatch/Signature
Mismatch
Combination - 9 Page
ICU EMS
39
Code Description Code Description
P8049 No ECM Acknowledgement
Combination - 10 Page
ICU EMS
40
Code Description Code Description
P8049 No ECM Acknowledgement P1832 Immobilizer Authentication Failed
P8048 F() mismatch P1833 F( ) result mismatch/Signature
Mismatch
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Combination - 11
ICU EMS
42
Code Description Code Description
P804A Negative Acknowledgement
Combination - 12 PAGE
ICU EMS
43
Code Description Code Description
P804A Negative Acknowledgement P1832 Immobilizer Authentication Failed
P8048 F() mismatch P1833 F( ) result mismatch/Signature
Mismatch
Combination 13 PAGE
ICU EMS
44
Code Description Code Description
P1832 Immobilizer Authentication Failed
P183F No response from ICU
U1117 Immobilizer Node absent
Combination 14 PAGE
ICU EMS
46
Code Description Code Description
P8044 No ECM Challenge P183E Immobilizer related EEPROM Error
P0633 Immobilizer not programmed
Combination 15 PAGE
ICU EMS
47 Code Description Code Description
P8044 No ECM Challenge P183E Immobilizer related EEPROM Error
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Combination – 1
ICU EMS
Code Description Code Description
P8040 Transponder Missing/No
Transponder P1832 Immobilizer Authentication Failed
P183F No ICU Response
U1417
Immo Message Content Failure
(exclusively applicable for m2DiCR variant
only)
DTC INFORMATION PROBABLE CAUSES
NORMAL OPERATION
Ignition ON
After successful authentication the vehicle starts.
DTC DETECTING CONDITIONS
This combination is registered when there is no
signal received from the key used.
DTC REACTIONS
Engine Check Lamp: Blinks.
Security tell tale lamp: Blinks.
Starter will not engage.
Defective Key
Defective ICU (Antenna )
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
DIAGNOSTIC PROCEDURE :
STEP 1
Try Starting the vehicle
with second Key.
Is it Starting?
Replace ICU.
ICU assignment.
Replace the key with which
the vehicle is not starting.
Perform Key assignment.
NOYES
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Combination – 2
ICU EMS
Code Description Code Description
P8041 Invalid Transponder P1832 Immobilizer Authentication Failed
P183F No ICU Response
U1417
Immo Message Content Failure
(exclusively applicable for m2DiCR variant
only)
DTC INFORMATION PROBABLE CAUSES OF
FAILURE
NORMAL OPERATION
Ignition ON
After successful authentication the vehicle starts.
DTC DETECTING CONDITIONS
This combination is registered when the signal received
from the key is invalid.
DTC REACTIONS
Engine Check Lamp: Blinking.
Security tell tale lamp: Blinking.
Starter will not engage.
Defective Key
Defective ICU (Antenna)
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
DIAGNOSTIC PROCEDURE :
STEP 1
Try Starting the vehicle
with second Key.
Is it Starting?
Replace ICU.
ICU assignment.
Replace the key with which
the vehicle is not starting.
Perform Key assignment.
NOYES
DIAGNOSTIC MANUAL SCORPIO IMMOBILISER
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Combination – 3
ICU EMS
Code Description Code Description
P8042 Wrong Transponder P1832 Immobilizer Authentication Failed
P183F No ICU Response
U1417
Immo Message Content Failure
(exclusively applicable for m2DiCR variant only)
DTC INFORMATION PROBABLE CAUSES OF
FAILURE
NORMAL OPERATION
Ignition ON
After successful authentication the vehicle starts.
DTC DETECTING CONDITIONS
This combination is registered when the signal received
is valid, but not belongs to the particular vehicle.
DTC REACTIONS
Engine Check Lamp: Blinking.
Security tell tale lamp: Blinking.
Starter will not engage.
Defective Key
Defective Antenna
DIAGNOSTIC MANUAL SCORPIO IMMOBILISER
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
DIAGNOSTIC PROCEDURE :
STEP 1
Try Starting the vehicle
with second Key.
Is it Starting?
Replace ICU.
ICU assignment.
Replace the key with which
the vehicle is not starting.
Perform Key assignment.
NOYES
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Combination – 4
ICU EMS
Code Description Code Description
P8043 No Transponder is Learnt P1832 Immobilizer Authentication Failed
P183F No ICU Response
U1417
Immo Message Content Failure
(exclusively applicable for m2DiCR variant
only)
DTC INFORMATION PROBABLE CAUSES OF
FAILURE
NORMAL OPERATION
Ignition ON
After successful authentication the vehicle starts.
DTC DETECTING CONDITIONS
This combination is registered when the fresh ICU is
fitted in the vehicle and no keys are learnt to it.
DTC REACTIONS
Engine Check Lamp: Blinking.
Security tell tale lamp: Blinking.
Starter will not engage.
ICU assignment not
done.
DIAGNOSTIC PROCEDURE :
Perform ICU Assignment.
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Combination – 5
ICU EMS
Code Description Code Description
P8044 No ECM Challenge P1832 Immobilizer Authentication Failed
P183F No ICU Response
DTC INFORMATION PROBABLE CAUSES OF
FAILURE
NORMAL OPERATION
Ignition ON
After successful authentication the vehicle starts.
DTC DETECTING CONDITIONS
This combination is registered when message from EMS
is not received by ICU.
DTC REACTIONS
Engine Check Lamp: Blinking.
Security tell tale lamp: OFF
Starter will not engage.
Starting the vehicle
before after run is
completed.
Disturbance in CAN
circuit
EMS flashing not proper.
Disturbance in EMS
ground connections.
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
DIAGNOSTIC PROCEDURE:
STEP A : STARTING BEFORE COMPLETION OF AFTER RUN
Turn off the ignition for 2
minutes.
Try starting the vehicle
Is it Starting?
GO TO STEP B The immobilisation could
be because of starting
attempt before after run
finished.
NOYES
STEP B: CHECK SEQUENCE OF IMMOBILISATION
Check the history of the
vehicle for EMS flashing
before immobilisation.
Is the
immobilisation
subsequent to
flashing?
Reflash the EMS once
again following the
procedure, and confirm
that the complaint has
been eliminated.
GO TO STEP C
YESNO
DIAGNOSTIC MANUAL SCORPIO IMMOBILISER
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
STEP C : CHECK CAN CIRCUIT
Check CAN circuit according to
the procedure given in the end
of the manual. (Appendix 1)
Is CAN circuit OK?
Rectify the the defect
identified in CAN circuit. GO TO STEP D
NOYES
STEP D : CHECK EMS ECU POWER AND GROUND SUPPLY WIRE
Check the power and ground supply to EMS
according to Procedure. (Appendix 2)
Rectify any identified defect.
Confirm the complaint has been eliminated.
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Combination 6
ICU EMS
Code Description Code Description
P8044 No ECM Challenge
DTC INFORMATION PROBABLE CAUSES OF
FAILURE
NORMAL OPERATION
Ignition ON
After successful authentication the vehicle starts.
DTC DETECTING CONDITIONS
This combination is registered when the signal from the
EMS ECU is not received by the ICU and the EMS is not
getting powered on.
DTC REACTIONS
Engine Check Lamp: Blinks.
Security tell tale lamp: OFF
Starter will not engage.
Disturbance in CAN
circuit.
EMS not getting
powered on with ignition.
Defective EMS ECU.
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
DIAGNOSTIC PROCEDURE:
STEP A : CHECK CAN CIRCUIT
Check CAN circuit according to
the procedure given in the end of
the manual. (Appendix 1)
Is The CAN
circuit OK?
Rectify the the defect
identified in CAN circuit.
GO TO STEP B
NOYES
STEP B : CHECK EMS ECU POWER AND GROUND SUPPLY WIRE
Check the power and ground
supply to EMS according to
Procedure. (Appendix 2)
Is it OK?
Rectify the the defect
identified in CAN circuit.
Replace the EMS ECU.
Flash it with the correct
dataset.
Perform EMS assignment.
Confirm that the complaint
has been eliminated.
NOYES
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Combination – 7
ICU EMS
Code Description Code Description
P804A Negative Acknowledgement P1832 Immobilizer Authentication Failed
P8045
ECM Authentication Failed
(exclusively applicable for mHAWK
variants only)
P1834
G( ) result mismatch
(exclusively applicable for m2DiCR variant
only)
DTC INFORMATION PROBABLE CAUSES OF
FAILURE
NORMAL OPERATION
Ignition ON
After successful authentication the vehicle starts.
DTC DETECTING CONDITIONS
This combination is registered when the signal from the
ICU is not as expected by the EMS ECU for successful
ICU authentication.
DTC REACTIONS
Engine Check Lamp: Blinking.
Security tell tale lamp: OFF
Starter will engage.
Disturbance in CAN
circuit.
EMS & ICU out of sync
due to power disturbance
in any of the two.
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
DIAGNOSTIC PROCEDURE:
STEP A : CHECK OPEN OR SHORT IN CAN CIRCUIT
Check CAN circuit according to
the procedure given in the end of
the manual. (Appendix 1)
Is The CAN
circuit OK?
Rectify the the defect
identified in CAN circuit.
GO TO STEP B
NOYES
STEP B : CHECK EMS ECU POWER AND GROUND SUPPLY WIRE
Check the power and ground
supply to EMS according to
Procedure. (Appendix 2)
Is it OK?
Rectify the the defect
identified in CAN circuit.
GO TO STEP C
NOYES
DIAGNOSTIC MANUAL SCORPIO IMMOBILISER
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
STEP C : CHECK ICU POWER AND GROUND SUPPLY WIRE
Check the power and ground
supply to ICU according to
Procedure. (Appendix 3)
Is it OK?
Rectify the the defect
identified in the circuit.
Perform ICU assignment.
Clear the error codes.
Confirm that the complaint
has been eliminated.
NOYES
DIAGNOSTIC MANUAL SCORPIO IMMOBILISER
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Combination – 8
ICU EMS
Code Description Code Description
P8048 F() mismatch P1832 Immobilizer Authentication Failed
P8045
ECM Authentication Failed
(exclusively applicable for mHAWK
variants only)
P1833
F( ) result mismatch/Signature Mismatch
(exclusively applicable for m2DiCR variant
only)
DTC INFORMATION PROBABLE CAUSES OF
FAILURE
NORMAL OPERATION
Ignition ON
After successful authentication the vehicle starts.
DTC DETECTING CONDITIONS
This combination is registered when the signal from the
EMS ECU is not as expected by the ICU for successful
EMS authentication.
DTC REACTIONS
Engine Check Lamp: Blinking.
Security tell tale lamp: OFF
Starter will engage.
Disturbance in CAN
circuit.
EMS & ICU out of sync
due to power disturbance
in any of the two.
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
DIAGNOSTIC PROCEDURE:
STEP A : CHECK CAN CIRCUIT
Check CAN circuit according to
the procedure given in the end of
the manual. (Appendix 1)
Is The CAN
circuit OK?
Rectify the the defect
identified in CAN circuit.
GO TO STEP B
NOYES
STEP B : CHECK EMS ECU POWER AND GROUND SUPPLY WIRE
Check the power and ground
supply to EMS according to
Procedure. (Appendix 2)
Is The CAN
circuit OK?
Rectify the the defect
identified in CAN circuit.
GO TO STEP C
NOYES
DIAGNOSTIC MANUAL SCORPIO IMMOBILISER
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
STEP C : CHECK IC POWER AND GROUND SUPPLY WIRE
Check the power and ground
supply to ICU according to
Procedure. (Appendix 3)
Is it OK?
Rectify the the defect
identified in the circuit.
Perform ICU assignment.
Clear the error codes.
Confirm that the complaint
has been eliminated.
NOYES
DIAGNOSTIC MANUAL SCORPIO IMMOBILISER
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Combination – 9
ICU EMS
Code Description Code Description
P8049 No ECM Acknowledgement P1832
Immobilizer Authentication Failed
(exclusively applicable for mHAWK variant
only)
P8045
ECM Authentication Failed
(exclusively applicable for mHAWK
variants only)
DTC INFORMATION PROBABLE CAUSES OF
FAILURE
NORMAL OPERATION
Ignition ON
After successful authentication the vehicle starts.
DTC DETECTING CONDITIONS
This combination is registered when the signal from the
ICU is not getting any confirmation from the EMS ECU
whether the signal received from ICU is as expected or
not.
DTC REACTIONS
Engine Check Lamp: Blinks.
Security tell tale lamp: OFF
Starter will engage.
Disturbance in CAN
circuit.
Corrective Action:
Check the CAN circuit according to the procedure given in the end of the manual
(Appendix 1)
DIAGNOSTIC MANUAL SCORPIO IMMOBILISER
MAN-00281 DEC 2014/Rev 1
39
The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Combination – 10
ICU EMS
Code Description Code Description
P8049
No ECM Acknowledgement
(exclusively applicable for m2DiCR
variant only)
P1832 Immobilizer Authentication Failed
P8048
F() mismatch
(exclusively applicable for m2DiCR
variant only)
P183F
No ICU Response
(exclusively applicable for mHAWK variants
only)
P1833
F( ) result mismatch/Signature Mismatch
(exclusively applicable for m2DiCR variant
only)
DTC INFORMATION PROBABLE CAUSES OF
FAILURE
NORMAL OPERATION
Ignition ON
After successful authentication the vehicle starts.
DTC DETECTING CONDITIONS
This combination is registered when the signal from the
EMS ECU is not received by the ICU and the ICU is not
getting powered on.
DTC REACTIONS
Engine Check Lamp: Blinking.
Security tell tale lamp: Blinking
Starter will not engage.
ICU not getting powered
on after ignition is on.
Defective ICU.
DIAGNOSTIC MANUAL SCORPIO IMMOBILISER
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
DIAGNOSTIC PROCEDURE:
NOYES
Check the power and
ground supply to EMS
according to Procedure.
(Appendix 2)
Rectify the the defect
identified in the circuit.
Check the power and
ground supply to ICU
according to Procedure.
(Appendix 3)
Is it OK?
DIAGNOSTIC MANUAL SCORPIO IMMOBILISER
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Combination – 11
ICU EMS
Code Description Code Description
P804A Negative Acknowledgement
DTC INFORMATION PROBABLE CAUSES OF
FAILURE
NORMAL OPERATION
Ignition ON
After successful authentication the vehicle starts.
DTC DETECTING CONDITIONS
This combination is registered when EMS ECU does not
receive acknowledgement from ICU.
DTC REACTIONS
Engine Check Lamp: Blinking.
Security tell tale lamp: Blinking
Starter will not engage.
Disturbance in CAN
circuit.
Corrective Action:
Check the CAN circuit according to the procedure given in the end of the manual
(Appendix 1
DIAGNOSTIC MANUAL SCORPIO IMMOBILISER
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Combination – 12
ICU EMS
Code Description Code Description
P804A Negative Acknowledgement P1832 Immobilizer Authentication Failed
P8048 F() mismatch P1833 F( ) result mismatch/Signature Mismatch
DTC INFORMATION PROBABLE CAUSES OF
FAILURE
NORMAL OPERATION
Ignition ON
After successful authentication the vehicle starts.
DTC DETECTING CONDITIONS
This combination is registered when EMS ECU and ICU
go out of synchronization due to multiple occurrences
of combination 9.
DTC REACTIONS
Engine Check Lamp: Blinking.
Security tell tale lamp: Off
Engine will crank, but will not start
Disturbance in CAN
circuit.
Corrective Action:
Check the CAN circuit according to the procedure given in the end of the manual
(Appendix 1
Do the EMS assignment to bring back the ICU and EMS ECU back to sync.
DIAGNOSTIC MANUAL SCORPIO IMMOBILISER
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Combination – 13
ICU EMS
Code Description Code Description
P1832 Immobilizer Authentication Failed
P183F No response from ICU
U1117 Immobilizer Node absent
DTC INFORMATION PROBABLE CAUSES OF
FAILURE
NORMAL OPERATION
Ignition ON
After successful authentication the vehicle starts.
DTC DETECTING CONDITIONS
This combination is registered when the signal from the
EMS ECU is not received by the ICU and the ICU is not
getting powered ON.
DTC REACTIONS
Engine Check Lamp: Continuously ON.
Security tell tale lamp: Continuously ON.
Starter will not engage
ICU not getting powered
on after ignition is turned
ON.
Defective ICU.
DIAGNOSTIC MANUAL SCORPIO IMMOBILISER
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
DIAGNOSTIC PROCEDURE :
NOYES
Check the power and
ground supply to EMS
according to Procedure.
(Appendix 2)
Rectify the the defect
identified in the circuit.
Check the power and
ground supply to ICU
according to Procedure.
(Appendix 3)
Is it OK?
DIAGNOSTIC MANUAL SCORPIO IMMOBILISER
MAN-00281 DEC 2014/Rev 1
45
The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Combination – 14
ICU EMS
Code Description Code Description
P8044 No ECM Challenge P183E Immobilizer related EEPROM Error
P0633 Immobilizer not programmed
DTC INFORMATION PROBABLE CAUSES OF
FAILURE
NORMAL OPERATION
Ignition ON
After successful authentication the vehicle starts.
DTC DETECTING CONDITIONS
This combination can be observed when the EMS ECU
is replaced and before the EMS assignment is done.
EEPROM error is registered as the fresh EMS will read
blank sectors in the area where immobiliser related
data should be present.
DTC REACTIONS
Engine Check Lamp: Blinking .
Security tell tale lamp: Continuously ON.
Engine will crank, but will not start.
EMS assignment not done
after replacing new EMS
ECU and flashing
Corrective Action:
Do the EMS assignment.
DIAGNOSTIC MANUAL SCORPIO IMMOBILISER
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Combination – 15
ICU EMS
Code Description Code Description
P8044 No ECM Challenge P183E Immobilizer related EEPROM Error
DTC INFORMATION PROBABLE CAUSES OF
FAILURE
NORMAL OPERATION
Ignition ON
After successful authentication the vehicle starts.
DTC DETECTING CONDITIONS
This combination wil be displayed when the EMS ECU
detects error with the EEPROM segments allotted for
immobiliser functionality.
DTC REACTIONS
Engine Check Lamp: Blinking .
Security tell tale lamp: Continuously ON.
Engine will crank, but will not start.
EEPROM getting
corrupted
Corrective Action:
Replace the ems ecu, do flashing and perform EMS assignment.
DIAGNOSTIC MANUAL SCORPIO IMMOBILISER
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Appendix 1: CHECKING CAN CIRCUIT
Is the value
=60±5 Ω ?
GO TO STEP 2
Ignition OFF
Check the resistance between pin 14 and pin 6 of the DLC connector
GO TO STEP 14
YESNO
STEP 1 – CHECK CAN WIRES ARE OK
STEP 2– CHECK SHORT CIRCUIT IN CAN LOW AND CAN HIGH OF TERMINAL RESISTOR
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Is the value
=120±5 Ω ?
GO TO STEP 3
Ignition OFF
Terminal resistor wiring harness connector DISCONNECTED
Check the resistance between pin 14 and pin 6 of the DLC connector
Suspect internal short in
Terminal resistor
Replace the Terminal resistor
with a new one.
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
Is the value
=120±5 Ω ?
GO TO STEP 4
Ignition OFF
EMS ECU wiring harness connector DISCONNECTED
Check the resistance between pin 14 and pin 6 of the DLC connector
Suspect internal short in EMS
ECU
Replace the EMS ECU with a
new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
STEP 3 – CHECK INTERNAL SHORT CIRCUIT IN CAN LOW AND CAN HIGH OF EMS ECU
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Is the value
=60±5 Ω ?
GO TO STEP 5
Ignition OFF
ABS ECU wiring harness connector DISCONNECTED
Check the resistance between pin 14 and pin 6 of the DLC connector
Suspect internal short in ABS
ECU
Replace the ABS ECU with a
new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
NOYES
Is the value
=60±5 Ω ?
GO TO STEP 6
Ignition OFF
AIRBAG ECU wiring harness connector DISCONNECTED
Check the resistance between pin 14 and pin 6 of the DLC connector
Suspect internal short in
AIRBAG ECU
Replace the AIRBAG ECU with
a new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
NOYES
STEP 4 – CHECK INTERNAL SHORT CIRCUIT IN CAN LOW AND CAN HIGH OF ABS ECU
STEP 5 – CHECK INTERNAL SHORT CIRCUIT IN CAN LOW AND CAN HIGH OF AIRBAG ECU
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Is the value
=60±5 Ω ?
GO TO STEP 7
Ignition OFF
HVAC ECU wiring harness connector DISCONNECTED
Check the resistance between pin 14 and pin 6 of the DLC connector
Suspect internal short in HVAC
ECU
Replace the HVAC ECU with a
new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
NOYES
Is the value
=60±5 Ω ?
GO TO STEP 8
Ignition OFF
IS wiring harness connector DISCONNECTED
Check the resistance between pin 14 and pin 6 of the DLC connector
Suspect internal short in IS
Replace the IS with a new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
NOYES
STEP 6 – CHECK INTERNAL SHORT CIRCUIT IN CAN LOW AND CAN HIGH OF HVAC ECU
STEP 7 – CHECK INTERNAL SHORT CIRCUIT IN CAN LOW AND CAN HIGH OF
INFOTAINMENT SYSTEM
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Is the value
=60±5 Ω ?
GO TO STEP 9
Ignition OFF
MBFM wiring harness connector DISCONNECTED
Check the resistance between pin 14 and pin 6 of the DLC connector
Suspect internal short in
MBFM
Replace the MBFM with a new
one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
NOYES
Is the value
=60±5 Ω ?
GO TO STEP 10
Ignition OFF
IMMOBILISER wiring harness connector DISCONNECTED
Check the resistance between pin 14 and pin 6 of the DLC connector
Suspect internal short in
IMMOBILISER
Replace the IMMOBILISER
with a new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
NOYES
STEP 8 – CHECK INTERNAL SHORT CIRCUIT IN CAN LOW AND CAN HIGH OF MBFM
STEP 9 – CHECK INTERNAL SHORT CIRCUIT IN CAN LOW AND CAN HIGH OF IMMOBILISER STEP 9 – CHECK INTERNAL SHORT CIRCUIT IN CAN LOW AND CAN HIGH OF IMMOBILISER
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Is the value
=60±5 Ω ?
GO TO STEP 11
Ignition OFF
IC wiring harness connector DISCONNECTED
Check the resistance between pin 14 and pin 6 of the DLC connector
Suspect internal short in IC
Replace the IC with a new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
NOYES
Is the value
=60±5 Ω ?
GO TO STEP 12
Ignition OFF
RPAS wiring harness connector DISCONNECTED
Check the resistance between pin 14 and pin 6 of the DLC connector
Suspect internal short in RPAS
Replace the RPAS with a new
one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
NOYES
STEP 10 – CHECK INTERNAL SHORT CIRCUIT IN CAN LOW AND CAN HIGH OF IC
STEP 11– CHECK INTERNAL SHORT CIRCUIT IN CAN LOW AND CAN HIGH OF RPAS ECU
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Is the value
=∞Ω?
GO TO STEP 13
Ignition OFF
Check the resistance between pin 14 and pin 16 of the DLC
Connector
Examine the short circuit of
CAN LOW and battery positive
Replace the wiring harness
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
NOYES
Is the value
=∞Ω?
Examine the short circuit of
CAN LOW AND CAN HIGH
wires
Replace the wiring harness
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
Ignition OFF
Check the resistance between pin 6 and pin 16 of the DLC Connector
Examine the short circuit of
CAN HIGH and battery positive
Replace the wiring harness
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
NOYES
STEP 12 – CHECK SHORT TO BATTERY IN CAN LOW
STEP 13 – CHECK SHORT TO BATTERY IN CAN HIGH
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Is the value
=∞Ω?
GO TO STEP 15
Ignition OFF
Check the resistance between pin 6 of the DLC connector and
battery ground
GO TO STEP 24
YESNO
Is the value
=∞Ω?
GO TO STEP 16
Ignition OFF
EMS ECU wiring harness connector DISCONNECTED
Check the resistance between pin 6 of the DLC connector and
battery ground
Suspect internal short in EMS
ECU
Replace the EMS ECU with a
new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
STEP 14– CHECK SHORT TO GROUND IN CAN HIGH
STEP 15– CHECK INTERNAL SHORT TO GROUND IN CAN HIGH OF EMS ECU
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Is the value
=∞Ω?
GO TO STEP 17
Ignition OFF
ABS ECU wiring harness connector DISCONNECTED
Check the resistance between pin 6 of the DLC connector and
battery ground
Suspect internal short in ABS
ECU
Replace the ABS ECU with a
new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
Is the value
=∞Ω?
GO TO STEP 18
Ignition OFF
AIRBAG ECU wiring harness connector DISCONNECTED
Check the resistance between pin 6 of the DLC connector and
battery ground
Suspect internal short in
AIRBAG ECU
Replace the AIRBAG ECU with
a new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
STEP 16– CHECK INTERNAL SHORT TO GROUND IN CAN HIGH OF ABS ECU
STEP 17– CHECK INTERNAL SHORT TO GROUND IN CAN HIGH OF AIRBAG ECU
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Is the value
=∞Ω?
GO TO STEP 19
Ignition OFF
HVAC ECU wiring harness connector DISCONNECTED
Check the resistance between pin 6 of the DLC connector and
battery ground
Suspect internal short in HVAC
ECU
Replace the HVAC ECU with a
new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
Is the value
=∞Ω?
GO TO STEP 20
Ignition OFF
IS wiring harness connector DISCONNECTED
Check the resistance between pin 6 of the DLC connector and
battery ground
Suspect internal short in IS
Replace the IS with a new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
STEP 18– CHECK INTERNAL SHORT TO GROUND IN CAN HIGH OF HVAC ECU
STEP 19– CHECK INTERNAL SHORT TO GROUND IN CAN HIGH OF INFOTAINMENT SYSTEM
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Is the value
=∞Ω?
GO TO STEP 21
Ignition OFF
MBFM wiring harness connector DISCONNECTED
Check the resistance between pin 6 of the DLC connector and
battery ground
Suspect internal short in
MBFM
Replace the MBFM with a new
one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
Is the value
=∞Ω?
GO TO STEP 22
Ignition OFF
IMMOBILISER wiring harness connector DISCONNECTED
Check the resistance between pin 6 of the DLC connector and
battery ground
Suspect internal short in
IMMOBILISER
Replace the IMMOBILISER
with a new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
STEP 20– CHECK INTERNAL SHORT TO GROUND IN CAN HIGH OF MBFM
STEP 21– CHECK INTERNAL SHORT TO GROUND CIRCUIT IN CAN HIGH OF IMMOBILISER
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Is the value
=∞Ω?
GO TO STEP 23
Ignition OFF
IC wiring harness connector DISCONNECTED
Check the resistance between pin 6 of the DLC connector and
battery ground
Suspect internal short in IC
Replace the IC with a new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
Is the value
=∞Ω?
Examine the short circuit of
CAN HIGH wire and battery
ground
Replace the wiring harness
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
Ignition OFF
RPAS ECU wiring harness connector DISCONNECTED
Check the resistance between pin 6 of the DLC connector and
battery ground
Suspect internal short in RPAS
ECU
Replace the RPAS ECU with a
new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
STEP 22– CHECK INTERNAL SHORT TO GROUND IN CAN HIGH OF INSTRUMENT CLUSTER
STEP 23– CHECK INTERNAL SHORT TO GROUND IN CAN HIGH OF RPAS ECU
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Is the value
=∞Ω?
GO TO STEP 25
Ignition OFF
Check the resistance between pin 14 of the DLC connector and
battery ground
Intermittent problem exists
Refer the intermittent problem
inspection procedure
YESNO
Is the value
=∞Ω?
GO TO STEP 26
Ignition OFF
EMS ECU wiring harness connector DISCONNECTED
Check the resistance between pin 14 of the DLC connector and
battery ground
Suspect internal short in EMS
ECU
Replace the EMS ECU with a
new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
STEP 24– CHECK SHORT CIRCUIT IN CAN LOW
STEP 25– CHECK INTERNAL SHORT TO GROUND IN CAN LOW OF EMS ECU
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Is the value
=∞Ω?
GO TO STEP 27
Ignition OFF
ABS ECU wiring harness connector DISCONNECTED
Check the resistance between pin 14 of the DLC connector and
battery ground
Suspect internal short in ABS
ECU
Replace the ABS ECU with a
new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
Is the value
=∞Ω?
GO TO STEP 28
Ignition OFF
AIRBAG ECU wiring harness connector DISCONNECTED
Check the resistance between pin 14 of the DLC connector and
battery ground
Suspect internal short in
AIRBAG ECU
Replace the AIRBAG ECU with
a new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
STEP 26 – CHECK INTERNAL SHORT TO GROUND IN CAN LOW OF ABS ECU
STEP 27 – CHECK INTERNAL SHORT TO GROUND IN CAN LOW OF AIRBAG ECU
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Is the value
=∞Ω?
GO TO STEP 29
Ignition OFF
HVAC ECU wiring harness connector DISCONNECTED
Check the resistance between pin 14 of the DLC connector and
battery ground
Suspect internal short in HVAC
ECU
Replace the HVAC ECU with a
new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
Is the value
=∞Ω?
GO TO STEP 30
Ignition OFF
IS wiring harness connector DISCONNECTED
Check the resistance between pin 14 of the DLC connector and
battery ground
Suspect internal short in IS
Replace the IS with a new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
STEP 28 – CHECK INTERNAL SHORT TO GROUND IN CAN LOW OF HVAC ECU
STEP 29 – CHECK INTERNAL SHORT TO GROUND IN CAN LOW OF INFOTAINMENT
SYSTEM
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Is the value
=∞Ω?
GO TO STEP 31
Ignition OFF
MBFM wiring harness connector DISCONNECTED
Check the resistance between pin 14 of the DLC connector and
battery ground
Suspect internal short in
MBFM
Replace the MBFM with a new
one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
Is the value
=∞Ω?
GO TO STEP 32
Ignition OFF
IMMOBILISER wiring harness connector DISCONNECTED
Check the resistance between pin 14 of the DLC connector and
battery ground
Suspect internal short in
IMMOBILISER
Replace the IMMOBILISER with
a new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
STEP 30 – CHECK INTERNAL SHORT TO GROUND IN CAN LOW OF MBFM
STEP 31 – CHECK INTERNAL SHORT TO GROUND IN CAN LOW OF IMMOBILISER
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Is the value
=∞Ω?
GO TO STEP 33
Ignition OFF
IC wiring harness connector DISCONNECTED
Check the resistance between pin 14 of the DLC connector and
battery ground
Suspect internal short in IC
Replace the IC with a new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
Is the value
=∞Ω?
Examine the short circuit of
CAN LOW wire and battery
ground
Replace the wiring harness
Check and confirm the ECU’s
are able to communicate
with the diagnostic tool
Ignition OFF
RPAS ECU wiring harness connector DISCONNECTED
Check the resistance between pin 14 of the DLC connector and
battery ground
Suspect internal short in RPAS
ECU
Replace the RPAS ECU with a
new one
Check and confirm that ECU’s
are able to communicate with
the diagnostic tool
YESNO
STEP 32 – CHECK INTERNAL SHORT TO GROUND IN CAN LOW OF INSTRUMENT CLUSTER
STEP 33 – CHECK INTERNAL SHORT TO GROUND IN CAN LOW OF RPAS ECU
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
APPENDIX 2: CHECKING POWER AND GROUND TO EMS ECU
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
STEP 1: CHECK THE FUSES
NOYES
GO TO STEP 2 Replace the blown fuses.
Check the fuses F2,F5,F43,F46
Are all the fuses
0k?
STEP 2: CHECK THE BATTERY VOLTAGE IN EMS RELAY
NOYES
GO TO STEP 3
Check the wiring for any
discontinuity/short to ground.
Replace/repair.
Ignition off.
EMS relay removed.
Check for battery voltage at pin number 8
and 9 of EMS relay connector (C 78C).
Is battery voltage
available?
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
STEP 3: CHECK THE BATTERY VOLTAGE IN EMS ECU
NOYES
GO TO STEP 4
Check the wiring for any
discontinuity/short to ground.
Replace/repair.
Ignition on.
EMS connector (C4-A) removed.
Check for battery voltage at pin number 71
EMS connector (C4-A).
Is battery voltage
available?
STEP 4: CHECK THE CONTINUITY B/W EMS RELAY AND EMS ECU
NO
YES
Ignition off.
EMS connector (C4)
removed.
Check continuity between
1, G4-C4:01
2, G4-C4:02
Make sure ground
connections and battery
terminals are clean.
Check the wiring for any
discontinuity/short to ground.
Replace/repair.
Ignition off.
EMS connector (C4) removed.
EMS relay removed.
Check continuity between
1, C78C:6-C4:06
2, C78C:6-C4:04 and
3, C78C:7-C4:50.
Are the wires
continuity?
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
APPENDIX 3: CHECKING POWER AND GROUND TO IMMOBILISER
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
STEP A: CHECK THE FUSES
NOYES
GO TO STEP B Replace the blown fuses.
Check the fuses F2, F4, F5, F53, F46
Are all the fuses
Good?
STEP B: CHECK BATTERY VOLTAGE IN ICU BATTERY SUPPLY WIRE
NOYES
GO TO STEP C
Check the wiring for any
discontinuity/short to ground.
Replace/repair.
Ignition off.
ICU connector (C251) removed.
Check for battery voltage at pin number 1 of
ICU connector (C251).
Is battery voltage
available?
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
STEP C: CHECK BATTERY VOLTAGE IN ICU IGNITION SUPPLY WIRE
NOYES
Ignition off.
ICU connector (C251)
removed.
Check continuity between
1, G4-C251:4
Make sure ground
connections and battery
terminals are clean.
Check the wiring for any
discontinuity/short to ground.
Replace/repair.
Ignition on.
ICU connector (C251) removed.
Check for battery voltage at pin number 6
ICU connector (C251).
Is battery voltage
available?
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
HOW TO USE THE DIAGNOSTIC TOOL
Home Screen (Use Mahindra Vehicle Security System V5 for Scorpio)
To start EMS/ICU/Key
assignment or to enter
ASC1 or ASC2 for an
existing session click
here
To check error codes
click here
To check the details of an
existing session click here
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Checking DTCs
1, After clicking on CHECK ERROR CODES tab the below window will appear.
Select GARUDA from the
drop down menu
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
2, After selecting GARUDA the below window will appear.
To read errors in EMS ECU
click here
To read errors in ICU click
here
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
3, After selecting Read EMS Error Codes the below window will appear. Similar window will
come up for Read Immobiliser Error Codes also.
To refresh error code
screen click here
To clear error codes click
here
To close the error code
window click here
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
High Security Programming
1, After selecting High security programming in the home screen, the below window will appear.
Click here to start session
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
2, After clicking start session, the below window will appear.
Select GARUDA from the
drop down menu
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
3, After selecting GARUDA, the below window will appear.
To create a new session to
generate TPK1 select this
option
To enter ASC1 received
from TEKline select this
option
To enter ASC2 received
from TEKline select this
option
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
CREATING NEW SESSION TO GENERATE TPK1
1, After selecting the above option, the below window will appear.
Enter the dealer code
which was entered during
installation of the software
here
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
2, After selecting entering dealer code, the below window will appear.
Select the service to be done
from the three options. For the
purpose of demonstration
EMS change is taken as the
service
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
3, After selecting operation, the below window will appear.
In case of key assignment, the combinations to be chosen are as follows.
To erase an old key: Old keys 1, New Keys 0
To assign 1 new key: Old keys 1, New Keys 1
To assign 2 new keys: Old keys 0, New Keys 2
Select one or two based on
the number of old keys
presented by the customer
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
4, After selecting the number of old keys , the below window will appear.
The tool will guide you
through further procedure.
Follow the instructions
coming in this tab until the
TPK1is generated
Before clicking next and
starting the coding
procedure verify the
selections made are correct
from those displayed here
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
SENDING TPK1&TPK2 TO TEKLINE
At the end of the procedure the tool will generate a file XXXXXXXXXXXXXX.tpk1 in the location
C:\codes
Attach the file to the TAR and send it to the TEKline.
TPK2 also will be generated in the same folder after entering ASC1 received from
TEKline, which again should be sent to TEKline.
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
HOW TO IDENTIFY TPK1 & TPK2
The name of the TPK1 or TPK2 file generated carries a bunch of information as given
below
MA1YE2JEKA6H50005_K295.tpk1
Vin Number of the vehicle Operation Carried Out
K – Key Assignment
C – ICU Change
E – EMS Change
Session ID: running serial
number in the tool
Type of code
.tpk1 – TPK1
.tpk2 – TPK2
.asc1 – ASC1
.asc2 – ASC2
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
Adding ASC1 or ASC2 to an existing session
Download the file XXXXXXXXXXX.asc1/XXXXXXXXXX.asc2 received from the TEKline and save
it in any convenient location in your laptop. After selecting high security programming in the
home screen, select Add ASC1/ASC2 for existing session depending on the code you have to
add
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
The following window will open up
Browse and select the
ASC1/ASC2 received from
TEKline based on the Vin
number, operation, session id
and TPK1/TPK2 and click
open at the bottom
Follow the instructions coming up in the window
Until TPK2 is generated if entering ASC1
Until the assignment process is completed
successfully if entering ASC2
Browse and select the
ASC1/ASC2 received from
TEKline based on the Vin
number, operation, session id
and TPK1/TPK2 and click
open at the bottom
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
CHECKING SESSION DETAILS
After selecting Check Session Details on the home screen the following window will appear
STAGE 1: Waiting for ASC1
from TEKline after generation
of TPK1
Session ID: running
serial number for the
assignment
procedure from the
beginning of
installation of tool
Vin number of
the vehicle in
which the Service
is being carried
out
Start date of
the
operation
Service: type of
service
(EMS/ICU/KEY
assignment) being
carried out.
Time remaining till
the expirey of
TPK1/TPK2
STAGE 1: Waiting for ASC1
from TEKline after
generation of TPK1
STAGE 2 SESSION: waiting
for ASC2 from TEKline for
completion of the service
after generation of TPK2
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
mHAWK IMMOBILISER TROUBLESHOOTING CHART
IMMOBILISER TROUBLESHOOTING CHART
Sr No:
ICU EMS Interpretation Probable Cause Field Action
1
P8040 P1832
No signal received from Key
Defective Key Check with both keys. If starting with second key, replace the first one and
do learning
P183F Defective Antenna If not starting with both keys the
Antenna can be defective, replace ICU and do the learning
2
P8041 P1832
Signal received from the key cannot be read by ICU.
Defective Key Check with both keys. If starting with second key, replace the first one and
do learning
P183F Defective Antenna If not starting with both keys the
Antenna can be defective, replace ICU and do the learning
3
P8042 P1832 Signal received can be read, but not
learnt for the particular vehicle. Wrong Key Used
Use the correct key and do learning if required
P183F
4 P8043 P1832
Blank ICU. No key is learned to the ICU
New ICU from stock Perform key learning
P183F
5
P8044 P1832 Signal from EMS not received by ICU Disturbance in CAN wiring (short to +/-, terminating
resistor) Check wiring & rectify
P183F EMS has not sent the signal
Ignition turned on before EMS After run got completed.
IGN OFF for 2 min and try again.
EMS is not Flashed properly Replace/Reflash EMS &Perform
ECM - ICU/ICU - Key learning
Note:183B(Locked State) can come in all the above conditions after 30 consecutive occurrences.
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
mHAWK IMMOBILISER TROUBLESHOOTING CHART
IMMOBILISER TROUBLESHOOTING CHART
Sr No: ICU EMS Interpretation Probable Cause Field Action
6
P8044
No communication from EMS
Disturbance in CAN wiring (short to +/-, terminating resistor)
Check wiring & rectify
EMS not getting IGN input/Defective EMS
Check wiring & rectify/Replace EMS
7
P804A P1832
ICU response not acceptable to ECM
Disturbance in CAN wiring (short to +/-, terminating resistor)
Check wiring & rectify
P8045 ECM & ICU out of sync Perform ECM - ICU learning
8
P8048 P1832 Signal from EMS ECU is not acceptable
to ICU.
Disturbance in CAN wiring (short to +/-, terminating resistor)
Check wiring & rectify
P8045 ECM & ICU out of sync Perform ECM - ICU learning
9
P8049 P1832 ICU didn’t receive acknowledgement
from ECM.
Disturbance in CAN wiring (short to +/-, terminating resistor)
Check wiring & rectify
P8045 Erase the DTC and check if it is
coming again
10
P1832
No communication from ICU.
Disturbance in CAN wiring (short to +/-, terminating resistor) or
power/ground lines. Check wiring & rectify
P183F Defective ICU Replace ICU &Perform ECM -
ICU/ICU - Key learning
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
m2DiCR IMMOBILISER TROUBLESHOOTING CHART
IMMOBILISER TROUBLESHOOTING CHART
Sr No: ICU EMS Interpretation Probable Cause Field Action
1
8040 P1832
No signal received from Key
Defective Key Check with both keys. If starting
with second key, replace the first one and do learning
P183F
Defective Antenna If not starting with both keys the
Antenna can be defective, replace ICU and do the learning U1417
2
8041 P1832
Signal received from the key cannot be read by ICU.
Defective Key Check with both keys. If starting
with second key, replace the first one and do learning
P183F
Defective Antenna If not starting with both keys the
Antenna can be defective, replace ICU and do the learning U1417
3
8042 P1832
Signal received can be read, but not learnt for the particular vehicle.
Wrong Key Used Use the correct key and do learning
if required P183F
U1417
4
8043 P1832
Blank ICU. No key is learned to the ICU New ICU from stock Perform key learning P183F
U1417
5
8044 P1832 Signal from EMS not received by ICU Disturbance in CAN wiring (short to +/-, terminating
resistor) Check wiring & rectify
P183F Signal from ICU is not received by EMS
Ignition turned on before EMS After run got
completed.
Crank, IGN OFF for 2 min and try again.
EMS is not Flashed properly Replace/Reflash EMS &Perform
EMS learning
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
m2DiCR IMMOBILISER TROUBLESHOOTING CHART
IMMOBILISER TROUBLESHOOTING CHART
Sr No: ICU EMS Interpretation Probable Cause Field Action
6
8044
No communication from EMS
Disturbance in CAN wiring (short to +/-, terminating
resistor) Check wiring & rectify
EMS not getting IGN input/Defactive EMS
Check wiring & rectify/Replace EMS
7 8045 P1832
EMS challenge not acceptable to ICU
Disturbance in CAN wiring (short to +/-, terminating
resistor) Check wiring & rectify
P1834 ECM & ICU out of sync Perform ECM - ICU learning
8 8048 P1832 Signal from EMS ECU is not acceptable to
ICU.
Either is EMS or ICU is replaced but pairing was not
done Perform ECM - ICU learning
P1833 ECM & ICU out of sync
9
8049 ICU didn’t recieve acknowledgement
from ECM.
Disturbance in CAN wiring (short to +/-, terminating
resistor)
Check wiring & rectify
Erase the DTC and check if it is
coming again
10
8049 P1832 ICU didn’t recieve acknowledgement
from ECM.
Disturbance in CAN wiring (short to +/-, terminating
resistor).
Check wiring & rectify
8048 P1833 Erase the DTC and check if it is
coming again
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The repair methods given by the manufacturer in this document are based on the technical specifications, current at the time of release. The methods may be modified as a result of changes introduced by the manufacturer in the production of the various component units and accessories from which the vehicles are manufactured. The reproduction, translation, transmission, in part of or whole of the present document, are prohibited without the prior written consent of Mahindra & Mahindra Ltd. The use of this document by any person other than the trained
personnel, at the Authorized Service Centre of Mahindra & Mahindra Ltd., will amount to unauthorized use and shall be liable for penalty/prosecution© 2014 Mahindra & Mahindra Ltd.
m2DiCR IMMOBILISER TROUBLESHOOTING CHART
IMMOBILISER TROUBLESHOOTING CHART
Sr No: ICU EMS Interpretation Probable Cause Field Action
11
804A Acknowledgement received from EMS
is not acceptable to ICU
Disturbance in CAN wiring (short to +/-, terminating
resistor). Check wiring & rectify
12
804A P1832 Acknowledgement received from EMS
is not acceptable to ICU
Disturbance in CAN wiring (short to +/-, terminating
resistor). Check wiring & rectify
8048 P1833
13
P1832
No communication from ICU
Disturbance in CAN wiring (short to +/-, terminating
resistor) Check wiring & rectify
P183F ICU not getting power Check wiring & rectify
U1117 Defective ICU Replace ICU
14 8044 P183E EMS is not programmed with EMS ID or
IMMO ID hence challenges are not received by ICU
EMS-ICU learning is not done after the Flashing in a
fresh EMS ECU
Check the DTCs and perform the EMS learning P0633
15 8044 P183E No communication from EMS as
EEPROM got corrupt EMS EEPROM error
Replace EMS ECU and perform EMS assignment
183B(Locked State) can come in all the above conditions after 20 consecutive occurrences.
DIAGNOSTIC MANUAL SCORPIO IMMOBILISER
MAN-00281 DEC 2014/Rev 1
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