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

DIAGNOSTIC MANUAL SCORPIO IMMOBILISER

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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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OVERVIEW OF VEHICLE COMMUNICATION NETWORK


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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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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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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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mailto:[email protected]



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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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)


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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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)


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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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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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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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



P8048 F mismatch




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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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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


ICU EMS

23 Code Description Code Description

P8041 Invalid Transponder P1832 Immobilizer Authentication Failed



ICU EMS


P8042 Wrong Transponder P1832 Immobilizer Authentication Failed



ICU EMS


P8043 No Transponder is Learnt P1832 Immobilizer Authentication Failed



ICU EMS


P8044 No ECM Challenge P1832 Immobilizer Authentication Failed


DTC COMBINATIONS - mHAWK VARIANTS


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ICU EMS

31Code Description Code Description



ICU EMS


P804A Negative Acknowledgement P1832 Immobilizer Authentication Failed



ICU EMS

36


P8048 F() mismatch P1832 Immobilizer Authentication Failed



ICU EMS

39Code Description Code Description

P8049 No ECM Acknowledgement P1832 Immobilizer Authentication Failed



ICU EMS





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DTC COMBINATIONS –m2DiCR VARIANT


ICU EMS

21





U1417 Immo Message Content Failure


ICU EMS

23






ICU EMS

25





ICU EMS

27






ICU EMS

28





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ICU EMS




ICU EMS

33


P8045 ECM Authentication Failed P1832 Immobilizer Authentication Failed

P1834 G( ) result mismatch


ICU EMS

36



P1833 F( ) result mismatch/Signature

Mismatch


ICU EMS

39




ICU EMS

40


P8049 No ECM Acknowledgement P1832 Immobilizer Authentication Failed

P8048 F() mismatch P1833 F( ) result mismatch/Signature

Mismatch


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Combination - 11

ICU EMS

42



Combination - 12 PAGE

ICU EMS

43



P8048 F() mismatch P1833 F( ) result mismatch/Signature

Mismatch

Combination 13 PAGE

ICU EMS

44





Combination 14 PAGE

ICU EMS

46


P8044 No ECM Challenge P183E Immobilizer related EEPROM Error


Combination 15 PAGE

ICU EMS




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Combination – 1

ICU EMS





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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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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Combination – 2

ICU EMS




U1417



only)

DTC INFORMATION PROBABLE CAUSES OF

FAILURE

NORMAL OPERATION

Ignition ON



This combination is registered when the signal received

from the key is invalid.

DTC REACTIONS

Engine Check Lamp: Blinking.

Security tell tale lamp: Blinking.


Defective Key

Defective ICU (Antenna)


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STEP 1


with second Key.

Is it Starting?

Replace ICU.

ICU assignment.




NOYES


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Combination – 3

ICU EMS




U1417


(exclusively applicable for m2DiCR variant only)


FAILURE

NORMAL OPERATION

Ignition ON



This combination is registered when the signal received

is valid, but not belongs to the particular vehicle.

DTC REACTIONS




Defective Key

Defective Antenna


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STEP 1


with second Key.

Is it Starting?

Replace ICU.

ICU assignment.




NOYES


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Combination – 4

ICU EMS




U1417



only)


FAILURE

NORMAL OPERATION

Ignition ON



This combination is registered when the fresh ICU is

fitted in the vehicle and no keys are learnt to it.

DTC REACTIONS




ICU assignment not

done.


Perform ICU Assignment.


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Combination – 5

ICU EMS





FAILURE

NORMAL OPERATION

Ignition ON



This combination is registered when message from EMS

is not received by ICU.

DTC REACTIONS


Security tell tale lamp: OFF


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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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


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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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Combination 6

ICU EMS




FAILURE

NORMAL OPERATION

Ignition ON



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




Disturbance in CAN

circuit.

EMS not getting

powered on with ignition.

Defective EMS ECU.


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STEP A : CHECK CAN CIRCUIT


the procedure given in the end of

the manual. (Appendix 1)

Is The CAN

circuit OK?


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?



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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Combination – 7

ICU EMS



P8045

ECM Authentication Failed

(exclusively applicable for mHAWK

variants only)

P1834

G( ) result mismatch


only)


FAILURE

NORMAL OPERATION

Ignition ON




ICU is not as expected by the EMS ECU for successful

ICU authentication.

DTC REACTIONS



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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STEP A : CHECK OPEN OR SHORT IN CAN CIRCUIT




Is The CAN

circuit OK?



GO TO STEP B

NOYES





Is it OK?



GO TO STEP C

NOYES


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STEP C : CHECK ICU POWER AND GROUND SUPPLY WIRE


supply to ICU according to


Is it OK?


identified in the circuit.

Perform ICU assignment.

Clear the error codes.



NOYES


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Combination – 8

ICU EMS



P8045



variants only)

P1833

F( ) result mismatch/Signature Mismatch


only)


FAILURE

NORMAL OPERATION

Ignition ON




EMS ECU is not as expected by the ICU for successful

EMS authentication.

DTC REACTIONS




Disturbance in CAN

circuit.

EMS & ICU out of sync

due to power disturbance

in any of the two.


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STEP A : CHECK CAN CIRCUIT




Is The CAN

circuit OK?



GO TO STEP B

NOYES





Is The CAN

circuit OK?



GO TO STEP C

NOYES


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STEP C : CHECK IC POWER AND GROUND SUPPLY WIRE


supply to ICU according to


Is it OK?



Perform ICU assignment.

Clear the error codes.



NOYES


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Combination – 9

ICU EMS


P8049 No ECM Acknowledgement P1832

Immobilizer Authentication Failed

(exclusively applicable for mHAWK variant

only)

P8045



variants only)


FAILURE

NORMAL OPERATION

Ignition ON




ICU is not getting any confirmation from the EMS ECU

whether the signal received from ICU is as expected or

not.

DTC REACTIONS




Disturbance in CAN

circuit.

Corrective Action:

Check the CAN circuit according to the procedure given in the end of the manual

(Appendix 1)


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Combination – 10

ICU EMS


P8049

No ECM Acknowledgement

(exclusively applicable for m2DiCR

variant only)


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


only)


FAILURE

NORMAL OPERATION

Ignition ON




EMS ECU is not received by the ICU and the ICU is not

getting powered on.

DTC REACTIONS


Security tell tale lamp: Blinking


ICU not getting powered

on after ignition is on.

Defective ICU.


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NOYES

Check the power and

ground supply to EMS

according to Procedure.

(Appendix 2)



Check the power and

ground supply to ICU


(Appendix 3)

Is it OK?


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Combination – 11

ICU EMS




FAILURE

NORMAL OPERATION

Ignition ON



This combination is registered when EMS ECU does not

receive acknowledgement from ICU.

DTC REACTIONS


Security tell tale lamp: Blinking


Disturbance in CAN

circuit.

Corrective Action:


(Appendix 1


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Combination – 12

ICU EMS



P8048 F() mismatch P1833 F( ) result mismatch/Signature Mismatch


FAILURE

NORMAL OPERATION

Ignition ON



This combination is registered when EMS ECU and ICU

go out of synchronization due to multiple occurrences

of combination 9.

DTC REACTIONS


Security tell tale lamp: Off

Engine will crank, but will not start

Disturbance in CAN

circuit.

Corrective Action:


(Appendix 1

Do the EMS assignment to bring back the ICU and EMS ECU back to sync.


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Combination – 13

ICU EMS






FAILURE

NORMAL OPERATION

Ignition ON




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.


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NOYES

Check the power and

ground supply to EMS


(Appendix 2)



Check the power and

ground supply to ICU


(Appendix 3)

Is it OK?


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Combination – 14

ICU EMS





FAILURE

NORMAL OPERATION

Ignition ON



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 .


Engine will crank, but will not start.

EMS assignment not done

after replacing new EMS

ECU and flashing

Corrective Action:

Do the EMS assignment.


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Combination – 15

ICU EMS




FAILURE

NORMAL OPERATION

Ignition ON



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 .


Engine will crank, but will not start.

EEPROM getting

corrupted

Corrective Action:

Replace the ems ecu, do flashing and perform EMS assignment.


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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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Is the value

=120±5 Ω ?

GO TO STEP 3

Ignition OFF

Terminal resistor wiring harness connector DISCONNECTED


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


Suspect internal short in EMS

ECU

Replace the EMS ECU with a

new one



the diagnostic tool

YESNO

STEP 3 – CHECK INTERNAL SHORT CIRCUIT IN CAN LOW AND CAN HIGH OF EMS ECU


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Is the value

=60±5 Ω ?

GO TO STEP 5

Ignition OFF

ABS ECU wiring harness connector DISCONNECTED


Suspect internal short in ABS

ECU

Replace the ABS ECU with a

new one



the diagnostic tool

NOYES

Is the value

=60±5 Ω ?

GO TO STEP 6

Ignition OFF

AIRBAG ECU wiring harness connector DISCONNECTED



AIRBAG ECU

Replace the AIRBAG ECU with

a new one



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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Is the value

=60±5 Ω ?

GO TO STEP 7

Ignition OFF

HVAC ECU wiring harness connector DISCONNECTED


Suspect internal short in HVAC

ECU

Replace the HVAC ECU with a

new one



the diagnostic tool

NOYES

Is the value

=60±5 Ω ?

GO TO STEP 8

Ignition OFF

IS wiring harness connector DISCONNECTED


Suspect internal short in IS

Replace the IS with a new one



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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Is the value

=60±5 Ω ?

GO TO STEP 9

Ignition OFF

MBFM wiring harness connector DISCONNECTED



MBFM

Replace the MBFM with a new

one



the diagnostic tool

NOYES

Is the value

=60±5 Ω ?

GO TO STEP 10

Ignition OFF

IMMOBILISER wiring harness connector DISCONNECTED



IMMOBILISER

Replace the IMMOBILISER

with a new one



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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Is the value

=60±5 Ω ?

GO TO STEP 11

Ignition OFF

IC wiring harness connector DISCONNECTED


Suspect internal short in IC

Replace the IC with a new one



the diagnostic tool

NOYES

Is the value

=60±5 Ω ?

GO TO STEP 12

Ignition OFF

RPAS wiring harness connector DISCONNECTED


Suspect internal short in RPAS

Replace the RPAS with a new

one



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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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



the diagnostic tool

NOYES

Is the value

=∞Ω?


CAN LOW AND CAN HIGH

wires




the diagnostic tool

Ignition OFF

Check the resistance between pin 6 and pin 16 of the DLC Connector


CAN HIGH and battery positive




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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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



battery ground


ECU


new one



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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Is the value

=∞Ω?

GO TO STEP 17

Ignition OFF



battery ground


ECU


new one



the diagnostic tool

YESNO

Is the value

=∞Ω?

GO TO STEP 18

Ignition OFF



battery ground


AIRBAG ECU


a new one



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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Is the value

=∞Ω?

GO TO STEP 19

Ignition OFF



battery ground


ECU


new one



the diagnostic tool

YESNO

Is the value

=∞Ω?

GO TO STEP 20

Ignition OFF



battery ground





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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Is the value

=∞Ω?

GO TO STEP 21

Ignition OFF



battery ground


MBFM


one



the diagnostic tool

YESNO

Is the value

=∞Ω?

GO TO STEP 22

Ignition OFF



battery ground


IMMOBILISER

Replace the IMMOBILISER

with a new one



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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Is the value

=∞Ω?

GO TO STEP 23

Ignition OFF



battery ground





the diagnostic tool

YESNO

Is the value

=∞Ω?


CAN HIGH wire and battery

ground




the diagnostic tool

Ignition OFF

RPAS ECU wiring harness connector DISCONNECTED


battery ground


ECU

Replace the RPAS ECU with a

new one



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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Is the value

=∞Ω?

GO TO STEP 25

Ignition OFF


battery ground

Intermittent problem exists

Refer the intermittent problem

inspection procedure

YESNO

Is the value

=∞Ω?

GO TO STEP 26

Ignition OFF



battery ground


ECU


new one



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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Is the value

=∞Ω?

GO TO STEP 27

Ignition OFF



battery ground


ECU


new one



the diagnostic tool

YESNO

Is the value

=∞Ω?

GO TO STEP 28

Ignition OFF



battery ground


AIRBAG ECU


a new one



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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Is the value

=∞Ω?

GO TO STEP 29

Ignition OFF



battery ground


ECU


new one



the diagnostic tool

YESNO

Is the value

=∞Ω?

GO TO STEP 30

Ignition OFF



battery ground





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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Is the value

=∞Ω?

GO TO STEP 31

Ignition OFF



battery ground


MBFM


one



the diagnostic tool

YESNO

Is the value

=∞Ω?

GO TO STEP 32

Ignition OFF



battery ground


IMMOBILISER

Replace the IMMOBILISER with

a new one



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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Is the value

=∞Ω?

GO TO STEP 33

Ignition OFF



battery ground





the diagnostic tool

YESNO

Is the value

=∞Ω?


CAN LOW wire and battery

ground


Check and confirm the ECU’s

are able to communicate

with the diagnostic tool

Ignition OFF

RPAS ECU wiring harness connector DISCONNECTED


battery ground


ECU

Replace the RPAS ECU with a

new one



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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APPENDIX 2: CHECKING POWER AND GROUND TO EMS ECU


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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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STEP 3: CHECK THE BATTERY VOLTAGE IN EMS ECU

NOYES

GO TO STEP 4



Replace/repair.

Ignition on.

EMS connector (C4-A) removed.


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.



Replace/repair.

Ignition off.

EMS connector (C4) removed.

EMS relay removed.


1, C78C:6-C4:06

2, C78C:6-C4:04 and

3, C78C:7-C4:50.

Are the wires

continuity?


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APPENDIX 3: CHECKING POWER AND GROUND TO IMMOBILISER


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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



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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STEP C: CHECK BATTERY VOLTAGE IN ICU IGNITION SUPPLY WIRE

NOYES

Ignition off.

ICU connector (C251)

removed.


1, G4-C251:4

Make sure ground

connections and battery

terminals are clean.



Replace/repair.

Ignition on.

ICU connector (C251) removed.


ICU connector (C251).

Is battery voltage

available?


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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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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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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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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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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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2, After clicking start session, the below window will appear.

Select GARUDA from the

drop down menu


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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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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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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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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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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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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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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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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 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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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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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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mHAWK 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



P8045 ECM & ICU out of sync Perform ECM - ICU learning

8

P8048 P1832 Signal from EMS ECU is not acceptable

to ICU.




9

P8049 P1832 ICU didn’t receive acknowledgement

from ECM.



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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m2DiCR IMMOBILISER TROUBLESHOOTING CHART



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


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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6

8044

No communication from EMS

Disturbance in CAN wiring (short to +/-, terminating


EMS not getting IGN input/Defactive EMS

Check wiring & rectify/Replace EMS

7 8045 P1832

EMS challenge not acceptable to ICU




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.


resistor)


Erase the DTC and check if it is

coming again

10

8049 P1832 ICU didn’t recieve acknowledgement

from ECM.


resistor).


8048 P1833 Erase the DTC and check if it is

coming again


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11

804A Acknowledgement received from EMS

is not acceptable to ICU


resistor). Check wiring & rectify

12

804A P1832 Acknowledgement received from EMS

is not acceptable to ICU


resistor). Check wiring & rectify

8048 P1833

13

P1832

No communication from ICU



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.


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IMMOBILISER DIAGNOSTIC MANUAL S10/S8/S6+/S6/S4/S2

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Transcript of IMMOBILISER DIAGNOSTIC MANUAL S10/S8/S6+/S6/S4/S2