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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© 2021 Mahindra & Mahindra Ltd.

STEP 3 – CHECK UICU POWER AND GROUND CIRCUIT

PRE CONDITION

• Turn ON ignition

TEST PROCEDURE

•

Check the UICU power and ground wires

ACCEPTANCE CRITERIA

• Is the power and ground circuit of UICU is OK

ACTION TO BE TAKEN

OK

NOT OK

• Connect i-SMART and try to clear all DTC’s

• If the DTC’s not getting cleared,

Contact

TEKliner for further assistance

• If the DTC’s got cleared. Turn OFF the ignition,

wait for 2 minutes. Turn ON ignition & Check
whether the issue is resolved

• Replace or repair the wiring harness

• After replacing the wiring harness,

Check

whether

the

DTC

got

reproduced.

• If the DTC reproduced again, contact

TEKline

Diagnostic Manual
XUV700 (Diesel)

UICU

MAN-01065

OCT - 2021/Rev 1

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Содержание XUV700 2021

Страница 1: ...Diagnostic Manual MAN 01065 DIAGNOSTIC MANUAL XUV700 Diesel UICU Revision 1 OCT 2021 Published by Service Engineering Technical Hub ...

Страница 2: ......

Страница 3: ... RECOMMENDED TROUBLE SHOOTING PROCESS 11 5 WARRANTY OTHER INFORMATION 12 6 ADRENOX SERVICE MODE 13 7 IMMOBILIZER SYSTEM OVERVIEW 15 7 1 KIT LOCK SET WITH UNIVERSAL IMMOBILIZER 15 7 2 EMS MD1CS018 16 7 3 CRANK AND START CONDITION FOR BOSCH MD1CS018 UICU COMBINATION 17 7 4 IGNITION KEY INTERLOCK SYSTEM Only applicable for RKE AT Variant 18 8 EMS ECU AND UICU REPLACEMENT 19 8 1 EMS ECU Bosch MD1CS018...

Страница 4: ...B2F49 00 NO ECM ACKNOWLEDGEMENT 59 13 10 B2F4A 00 NEGATIVE ACKNOWLEDGEMENT 61 13 11 B2F47 00 IMMOBILIZER ID NOT PROGRAMMED 64 13 12 B2F4F 00 ICU EMS ID NOT PROGRAMMED INVALID 66 13 13 B2F47 4F 43 50 00 UICU BLANK 68 13 14 B2F50 00 SK NOT PROGRAMMED INVALID 70 13 15 B2F4E 00 TAG FEATURE CODING NOT DONE 72 13 16 B2FFE 00 EMS AUTHENTICATION LOCKED 74 13 17 B2F4D 00 ANTENNA COIL BREAKAGE 76 13 18 U281...

Страница 5: ...MP Amplifier Branded Audio BLAC Brush less Alternative Current CAN H CAN High Signal CAN L CAN Low Signal C EPS Column Type Electronic Power Steering DATC Dual Automatic Temperature Control ECU Electronic Control Unit EEPROM Electrically Erasable and Programmable Read Only Memory EPS Electric Power Steering ESCL Electronic Steering Column Lock ETC Electronic Temperature Control EMS Engine Manageme...

Страница 6: ...1 Mahindra Mahindra Ltd RVC Rear View Camera RPAS Reverse Park Assist System RLS Rain Light Sensor SAS Steering Angle Sensor SCM Seat Control Module SENT 1 Torque Sensor Signal 1 SENT 2 Torque Sensor Signal 2 SENT Single Edge Nibble Transmit SRS Supplementary Restraint System SVS Surround View System 360 TAS Torque and Angle Sensor TPMS Tyre Pressure Monitoring System VSS Vehicle Speed Sensor VBAT...

Страница 7: ...d will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 7 2 HOW TO USE THIS MANUAL If DTC code is known then go to the DTC BASED DIAGNOSIS and click on the DTC The DTCs are hyperlinked to the respective trouble shooting procedures The following is the structure of the UICU Diagnostic Manual DTC and a brief description of the system DTC Information C...

Страница 8: ...re of Mahindra Mahindra Ltd will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 3 STANDARD TEST PROCEDURE TESTING OF VOLTAGE POTENTIAL Connect the ground lead of a voltmeter to a known good ground or battery ground Connect the other lead of voltmeter to selected test point The vehicle ignition may need to be turned ON to check voltage TESTING FOR ...

Страница 9: ...tery ground Starting at the fuse block move shake the wiring harness about six to eight inches apart and look at the Multimeter display If the Multimeter registers resistance value audible beep then there is a short to ground in that area of the wiring harness TESTING FOR A SHORT TO GROUND ON FUSES POWERING SEVERAL LOADS Switch OFF the ignition and disconnect the battery Referring the wiring diagr...

Страница 10: ...ditions frequency of occurrence and trouble symptoms and then try to recreate the trouble symptoms Before replacing a component or wiring assembly check the following items Connectors inter connector are fully locked Check for water traces in the fuse or relay box connectors Any spread terminals or pin back out Terminals in the wiring assembly are fully seated into the connector component and lock...

Страница 11: ...han the trained personnel at the Authorized Service Centre of Mahindra Mahindra Ltd will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 11 4 RECOMMENDED TROUBLE SHOOTING PROCESS Customer complaint Record Understand Customer Verbatim What happened When did it happen Were any specific events recorded observed before the complaint Does it happen all ...

Страница 12: ...ther 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 2021 Mahindra Mahindra Ltd 5 WARRANTY OTHER INFORMATION All failures complaints encountered in UICU and other system components should be reported through Service Complaint Report SCR Replacement of UICU and other system components re...

Страница 13: ...nauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 13 6 ADRENOX SERVICE MODE Enabling Service mode from the AdrenoX display will disable all remote functions from the AdrenoX connect app Applicable Vehicle Variants AX3 AX5 AX7 AX7 L AX7 C AX7 T The above mentioned vehicle variants are equipped with remote functions from the AdrenoX app make sure to enable Servic...

Страница 14: ...cument 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 2021 Mahindra Mahindra Ltd 5 Scroll down to locate the Service Mode function and slide the button left to right t...

Страница 15: ...rvice Centre of Mahindra Mahindra Ltd will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 15 7 IMMOBILIZER SYSTEM OVERVIEW 7 1 KIT LOCK SET WITH UNIVERSAL IMMOBILIZER An immobilizer control unit is an electronic device fitted in the vehicle which prevents vehicle to start unless a valid key is being used to start the vehicle This type universal im...

Страница 16: ...ited 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 2021 Mahindra Mahindra Ltd 7 2 EMS MD1CS018 The EMS is an electronic control unit that ensures optimum performance from the engine...

Страница 17: ...nel at the Authorized Service Centre of Mahindra Mahindra Ltd will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 17 7 3 CRANK AND START CONDITION FOR BOSCH MD1CS018 UICU COMBINATION Sl No CONDITION CHECK LAMP STATUS CRANKING Veh STARTING 1 Key not learnt IMMO BLINKING NO NO ENGINE BLINKING 2 EMS UICU Data Mismatch IMMO OFF YES NO ENGINE BLINKING ...

Страница 18: ...d shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 7 4 IGNITION KEY INTERLOCK SYSTEM Only applicable for RKE AT Variant The Ignition Key cannot be removed from the key barrel unless the TGS lever is moved to P Park position If the key is stuck in the key barrel due to an malfunction in the TGS lever remove fuse F43 from ENGINE COMPARTMENT FUSE BOX to release the key And contact A...

Страница 19: ...N plate VIN is matching before proceeding further Open latest version of i SECURE tool and navigate to platform home page and select EMS ECU assignment option to perform EMS ECU assignment Share the TPK generated at the 1st stage of EMS ECU assignment to TEKline for ASC or using Automated BS generate ASC and execute ASC of EMS ECU assignment After successful completion of EMS ECU assignment turn i...

Страница 20: ...ahindra 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 2021 Mahindra Mahindra Ltd 9 i SECURE TOOL LOGIN Always use i SECURE V4 0 7 and above for all BS6 BOSCH MD1CS018 based vehicles For all BS6 models with MD1CS018 ECU based vehicle i S...

Страница 21: ...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 2021 Mahindra Mahindra Ltd 21 After successful user authentication OTP will be shared to team mahindra eMail ID enter OTP in the text box and click OK Please Not...

Страница 22: ...e 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 2021 M...

Страница 23: ...resent 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 2021 Mahindra Mahindra Ltd 23 10 1 EMS ECU UNLOCKING PROCEDURE 1 To unlock the EMS ECU Select EMS ECU Un...

Страница 24: ... 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 2021 Mahindra Mahindra Ltd 3 Enter the OTP received in the reg...

Страница 25: ...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 2021 Mahindra Mahindra Ltd 25 5 To Unlock the EMS ECU click on the below highlighted...

Страница 26: ...icles 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 2021 Mahind...

Страница 27: ...rior 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 2021 Mahindra Mahindra Ltd 27 11 1 UICU KEY CHECKING PROCESS This is process of checking or validating the key to ensure that the key is fit to perf...

Страница 28: ...ufactured 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 2021 Mahindra Mahindra L...

Страница 29: ...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 2021 Mahindra Mahindra Ltd 29 5 Select the appropriate EMS ECU MD1C and Click Proceed 6 Enter th...

Страница 30: ...uction 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 2021 Mahindra Mahindra Ltd 8 Enter the Four ...

Страница 31: ...ich 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 ...

Страница 32: ...mission 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 2021 Mahindra Mahindra Ltd 10 Select the number keys available with ...

Страница 33: ...ahindra 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 2021 Mahindra Mahindra Ltd 33 12 Once the first key authentication is completed with 7938 Auth Pass message tool will prompt for second key Change second key in the barrel a...

Страница 34: ...erved after clicking on proceed please retry once again to ensure the error If the same error reoccurs please proceed as per the explanation given below in the table List of Error codes observed during key checking S L No ERROR ROOT CAUSE ACTION 1 Key manufacturing operation not done Key Transponder is faulty Replace the key 2 Default Key Same key used or key type is different between two keys Che...

Страница 35: ...use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 35 12 INDEX OF DTC s UNIVERSAL IMMOBILIZER CONTROL UNIT DTC LIST B2F40 00 Missing transponder No response B2F41 00 TAG authentication failed B2F42 00 Wrong TXP B2F43 00 TXP table is empty B2F48 00 F Signature 1 mismatch B2F44 00 No ECM Challenge B2F45 00 Authentication failed time out B2F49 00 No ECM acknowledgement B2F47 0...

Страница 36: ...re 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 2021 Mahindra Mahindra Ltd EMS ECU DTC LIST B2FFF 00 Immobilizer Authentication failed B2FF9 00 Immobilizer not present N...

Страница 37: ...les 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 2021 Mahindra...

Страница 38: ...authenticate with other security components in order to allow the vehicle to crank and start DTC Description EMS ECU UICU DTC Description Immobilizer Authentication failed B2FFF 00 B2F48 00 F Signature 1 mismatch Signature 1 Mismatch B2FF7 00 B2F45 00 Authentication failed time out DTC INFORMATION PROBABLE CAUSES OF FAILURE NORMAL OPERATION Ignition ON After successful security authentication vehi...

Страница 39: ... penalty prosecution 2021 Mahindra Mahindra Ltd 39 13 1 2 DIAGNOSTIC PROCEDURE If vehicle ignition turned ON for more than 20 times with DTC B2F48 00 F Signature 1 mismatch live in UICU EMS ECU will get locked setting DTC B2FFE 00 EMS Authentication Locked live in EMS ECU To unlock EMS follow EMS ECU UNLOCK PROCEDURE STEP 1 CHECK CAN CIRCUIT PRE CONDITION Turn ON ignition TEST PROCEDURE Check CAN ...

Страница 40: ...Mahindra Mahindra Ltd will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd STEP 3 CHECK UICU POWER AND GROUND CIRCUIT PRE CONDITION Turn ON ignition TEST PROCEDURE Check the UICU power and ground wires ACCEPTANCE CRITERIA Is the power and ground circuit of UICU is OK ACTION TO BE TAKEN OK NOT OK Connect i SMARTand try to clear all DTC s If the DTC ...

Страница 41: ...ll the three components authenticate with each other during every ignition cycle Either one of it failed to authenticate or absent will result in immobilization of vehicle DTC Description EMS ECU UICU DTC Description Immobilizer Authentication Failed B2FFF 00 B2F44 00 No ECM challenge B2F45 00 Authentication failed time out DTC INFORMATION PROBABLE CAUSES OF FAILURE NORMAL OPERATION Ignition ON Af...

Страница 42: ...TIC PROCEDURE If any of the below key Transponder related DTC are present try to clear those DTC first B2F40 00 Missing transponder B2F41 00 Tag authentication failed B2F42 00 Wrong TXP B2F43 00 TXP ID table empty STEP 1 STARTING VEHICLE BEFORE AFTER RUN IS COMPLETED PRE CONDITION Turn OFF ignition TEST PROCEDURE Wait for about 2 to 3 minutes ACCEPTANCE CRITERIA Try starting the vehicle ACTION TO ...

Страница 43: ...a Mahindra Ltd will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 43 ACCEPTANCE CRITERIA Is the CAN circuit is OK ACTION TO BE TAKEN OK NOT OK Go to STEP 4 Replace or repair the wiring harness STEP 4 CHECK EMS ECU POWER AND GROUND CIRCUIT PRE CONDITION Turn ON ignition TEST PROCEDURE Check EMS ECU power and ground wires ACCEPTANCE CRITERIA Is the...

Страница 44: ...f 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 2021 Mahindra Mahindra Ltd OK NOT OK Check and confirm the status of Immobilizer check lamp and Engine check lamp If the engine check lamp is still blinking Replace the EMS ECU with new one and perform E...

Страница 45: ... TXP TABLE EMPTY 13 3 1 UICU TXP TABLE In universal immobilizer TXP table is the space were transponder ID s are stored and the same are compared during every ignition cycle DTC Description EMS ECU UICU DTC Description Immobilizer Authentication failed B2FFF 00 B2F43 00 TXP ID table empty B2F42 00 Wrong TXP B2F45 00 Authentication failed time out B2F44 00 No ECM Challenge U1517 00 IMMO Variant Cod...

Страница 46: ...rosecution 2021 Mahindra Mahindra Ltd 13 3 2 DIAGNOSTIC PROCEDURE STEP 1 PERFORM KEY ASSIGNMENT PRE CONDITION Turn ON ignition TEST PROCEDURE Connect i SECURE dealer programming tool using garuda VCI in the vehicle and generate an key assignment TPK Always use i SECURE V4 0 7 and above for any security components ECU programming in XUV 7OO ACCEPTANCE CRITERIA Key assignment TPK should be generated...

Страница 47: ...0 MISSING TRANSPONDER NO RESPONSE 13 4 1 TRANSPONDER CHIP Transponder is a chip which is present inside the key during key authentication this chip will get energized when it is inside the key barrel by the immobilizer ring and transmits RF signal DTC Description EMS ECU UICU DTC Description Immobilizer Authentication failed B2FFF 00 B2F40 00 Missing transponder No response B2F44 00 No ECM Challen...

Страница 48: ...Centre of Mahindra Mahindra Ltd will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 13 4 2 DIAGNOSTIC PROCEDURE STEP 1 TRY STARTING THE VEHICLE WITH THE SECOND KEY PRE CONDITION Turn ON ignition with second key TEST PROCEDURE Check whether Immobilizer check lamp and Engine check lamp is blinking ACCEPTANCE CRITERIA Check lamp s should be OFF and v...

Страница 49: ... FAILED 13 5 1 AUTHENTICATION During every ignition cycle security components authenticate within each other to make sure vehicle is secured DTC Description EMS ECU UICU DTC Description Immobilizer Authentication failed B2FFF 00 B2F41 00 TAG authentication failed B2F44 00 No ECM Challenge B2F45 00 Authentication failed time out DTC INFORMATION PROBABLE CAUSES OF FAILURE NORMAL OPERATION Turn Ignit...

Страница 50: ...a Ltd 13 5 2 DIAGNOSTIC PROCEDURE STEP 1 CHECK TAG FEATURE CODING PRE CONDITION Turn ON the ignition TEST PROCEDURE Connect i SMART diagnostic tool see whether UICU is detecting Open UICU read ECU tab and check TAG feature code ACCEPTANCE CRITERIA TAG feature code should be 0X00000000020201 ACTION TO BE TAKEN OK NOT OK Connect i SECURE tool and enter platform home page Select No of keys available ...

Страница 51: ...ahindra Mahindra Ltd 51 13 6 B2F42 00 WRONG TXP 13 6 1 WRONG OR NEW KEY Key which is being used in the vehicle is a valid key but doesn t belong to this vehicle or it is not yet learnt to the vehicle DTC Description EMS ECU UICU DTC Description Immobilizer Authentication failed B2FFF 00 B2F42 00 Wrong TXP B2F44 00 No ECM challenge B2F45 00 Authentication failed time out DTC INFORMATION PROBABLE CA...

Страница 52: ...hindra Mahindra Ltd 13 6 2 DIAGNOSTIC PROCEDURE STEP 1 CHECK WHETHER CORRECT PART LOCK SET IS FITTED PRE CONDITION Turn OFF the ignition TEST PROCEDURE Check the part number of UICU and lockset fitted in the vehicle Refer EPC parts catalogue for Kit part number ACCEPTANCE CRITERIA Immobilizer ECU and lockset part number should be correct as per electronic parts catalogue ACTION TO BE TAKEN OK NOT ...

Страница 53: ...zed Service Centre of Mahindra Mahindra Ltd will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 53 OK NOT OK If the keys are new generate a TPK for key assignment and share it to TEKline to get ASC or generate ASC using automated blue signature and execute ASC After executing ASC turn off ignition for 2 minutes After 2 minutes turn ignition ON and...

Страница 54: ...td 13 7 B2F44 00 NO ECM CHALLENGE EMS ECU NODE ABSENT 13 7 1 EMS ECU NODE ABSENT EMS ECU is not in CAN when the ignition is turned ON DTC Description EMS ECU UICU DTC Description B2F44 00 No ECM challenge B2F45 00 Authentication failed timeout DTC INFORMATION PROBABLE CAUSES OF FAILURE NORMAL OPERATION Ignition ON After successful security authentication vehicle starts normally DTC DETECTING CONDI...

Страница 55: ... the trained personnel at the Authorized Service Centre of Mahindra Mahindra Ltd will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 55 ACCEPTANCE CRITERIA EMS ECU should be connecting and read ECU tab should be able to access ACTION TO BE TAKEN OK NOT OK Connect i SMARTand try to clear all DTC s If the DTC s not getting cleared contact TEKliner f...

Страница 56: ...ition cycle EMS ECU ID s and ICU ID s are checked for mismatch DTC Description EMS ECU UICU DTC Description Immobilizer Authentication failed B2FFF 00 B2F4C 00 Checksum mismatch Immobilizer No Response B2FF9 00 DTC INFORMATION PROBABLE CAUSES OF FAILURE NORMAL OPERATION Ignition ON After successful security authentication vehicle starts normally DTC DETECTING CONDITIONS This combination is registe...

Страница 57: ...rized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 57 STEP 1 CHECK CAN CIRCUIT PRE CONDITION Turn ON ignition TEST PROCEDURE Check CAN circuit ACCEPTANCE CRITERIA Is the CAN circuit is OK ACTION TO BE TAKEN OK NOT OK Go to STEP 2 Replace or repair the wiring harness STEP 2 CHECK EMS ECU POWER AND GROUND CIRCUIT PRE CONDITION Turn ON the ignition TEST PROCEDURE Check E...

Страница 58: ...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 2021 Mahindra Mahindra Ltd ACTION TO BE TAKEN OK NOT OK Connect i SMARTand try to clear all DTC s If the DTC s not getting cleared Contact TEKliner...

Страница 59: ...S ECU UICU and the transponder key All the three components authenticate with each other during every ignition cycle Either one of it failed to authenticate or absent will result in immobilization of vehicle DTC Description EMS ECU UICU DTC Description Immobilizer Authentication failed B2FFF 00 B2F49 00 No ECM acknowledgement Signature 2 mismatch B2FF6 00 B2F45 00 Authentication failed time out DT...

Страница 60: ...on 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 2021 Mahindra Mahindra Ltd 13 9 2 DIAGNOSTIC PROCEDURE STEP 1 CHECK CAN CIRCUIT PRE CONDITION Turn ON the ignition TEST PROCEDURE Check CAN circuit ACCEPTANCE CRITERIA Is the CAN circuit is OK ACTION TO BE TAKEN OK NOT OK Connect ...

Страница 61: ... EMS ECU UICU and the transponder key All the three components authenticate with each other during every ignition cycle Either one of it failed to authenticate or absent will result in immobilization of vehicle DTC Description EMS ECU UICU DTC Description Immobilizer Authentication Failed B2FFF 00 B2F4A 00 Negative acknowledgement B2F45 00 Authentication failed time out DTC INFORMATION PROBABLE CA...

Страница 62: ...ll amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 13 10 2 DIAGNOSTIC PROCEDURE STEP 1 CHECK CAN CIRCUIT PRE CONDITION Turn ON the ignition TEST PROCEDURE Check CAN circuit ACCEPTANCE CRITERIA Is the CAN circuit is OK ACTION TO BE TAKEN OK NOT OK Go to STEP 2 Replace or repair the wiring harness STEP 2 CHECK EMS ECU POWER AND GROUND CIRCUIT PRE CON...

Страница 63: ...hindra 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 2021 Mahindra Mahindra Ltd 63 ACCEPTANCE CRITERIA Is the power and ground circuit of UICU is OK ACTION TO BE TAKEN OK NOT OK Connect i SMARTand try to clear all DTC s If the DTC s not...

Страница 64: ...osecution 2021 Mahindra Mahindra Ltd 13 11 B2F47 00 IMMOBILIZER ID NOT PROGRAMMED 13 11 1 EMS and IMMO ID EMS ECU and UICU ID s are checked for any mismatch during every ignition cycle DTC Description EMS ECU UICU DTC Description Immobilizer Authentication failed B2FFF 00 B2F47 00 Immobilizer ID not programmed B2F43 00 TXP ID table empty B2F42 00 Wrong TXP B2F45 00 Authentication failed time out D...

Страница 65: ...horized Service Centre of Mahindra Mahindra Ltd will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 65 13 11 2 DIAGNOSTIC PROCEDURE STEP 1 PERFORM UICU PROGRAMMING PRE CONDITION Turn ON ignition TEST PROCEDURE Connect i SECURE dealer tool and perform UICU assignment Always use i SECURE V4 0 7 and above for any security components ECU programming i...

Страница 66: ...penalty prosecution 2021 Mahindra Mahindra Ltd 13 12 B2F4F 00 ICU EMS ID NOT PROGRAMMED INVALID 13 12 1 EMS AND IMMO ID s EMS ECU and UICU ID s are checked for any mismatch during every ignition cycle DTC Description EMS ECU UICU DTC Description Authentication failed B2FFF 00 B2F4F 00 EMS ECU ID not programmed Invalid B2F44 00 No ECM Challenge B2F45 00 Authentication failed time out DTC INFORMATIO...

Страница 67: ...horized Service Centre of Mahindra Mahindra Ltd will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 67 13 12 2 DIAGNOSTIC PROCEDURE STEP 1 PERFORM UICU PROGRAMMING PRE CONDITION Turn ON ignition TEST PROCEDURE Connect i SECURE dealer tool and perform UICU assignment Always use i SECURE V4 0 7 and above for any security components ECU programming i...

Страница 68: ...ned personnel at the Authorized Service Centre of Mahindra Mahindra Ltd will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 13 13 B2F47 4F 43 50 00 UICU BLANK 13 13 1 EMS AND IMMO ID s EMS ECU and UICU ID s are checked for any mismatch during every ignition cycle DTC Description EMS ECU UICU DTC Description Immobilizer Authentication Failed B2FFF ...

Страница 69: ... OPERATION Ignition ON After successful security authentication vehicle starts normally DTC DETECTING CONDITIONS This combination is registered when the signal from EMS ECU is not matching with UICU UICU is blank DTC REACTIONS Immobilizer check lamp ON Engine check lamp BLINKS Starter will not engage HEALING CONDITION Program UICU UICU is not programmed 13 13 2 DIAGNOSTIC PROCEDURE STEP 1 PERFORM ...

Страница 70: ...penalty prosecution 2021 Mahindra Mahindra Ltd 13 14 B2F50 00 SK NOT PROGRAMMED INVALID 13 14 1 EMS and IMMO ID EMS ECU and UICU ID s are checked for any mismatch during every ignition cycle DTC Description EMS ECU UICU DTC Description Immobilizer authentication error P1832 00 B2F50 00 SK not Programmed INVALID B2F42 00 Wrong TXP B2F45 00 Authentication failed time out DTC INFORMATION PROBABLE CAU...

Страница 71: ...a Ltd will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 71 13 14 2 DIAGNOSTIC PROCEDURE STEP 1 PERFORM UICU PROGRAMMING PRE CONDITION Turn ON ignition TEST PROCEDURE Connect i SECURE dealer tool and perform UICU assignment Always use i SECURE V4 0 7 and above for any security components ECU programming in XUV 7OO ACCEPTANCE CRITERIA UICU assignm...

Страница 72: ...he ignition barrel for this vehicle TAG feature code is return in UICU for it to understand the type of transponder key being used DTC Description EMS ECU UICU DTC Description B2F4E 00 Tag Feature Coding Not Done DTC INFORMATION PROBABLE CAUSES OF FAILURE NORMAL OPERATION Ignition ON After successful security authentication vehicle starts normally DTC DETECTING CONDITIONS This combination is regis...

Страница 73: ...2F47 00 Immobilizer ID not programmed Invalid B2F4F 00 EMS ECU ID not programmed Invalid B2F43 00 TXP ID table empty B2F42 00 Wrong TXP B2F50 00 SK not Programmed INVALID U1517 00 Immo variant code error STEP 1 PERFORM KEY CHECK TO WRITE TAG CODE PRE CONDITION Turn ON ignition TEST PROCEDURE Connect i SECURE dealer tool select the appropriate platform Select no of keys available and perform the ke...

Страница 74: ...g maximum number of wrong ignition ON attempts made In this condition EMS ECU had to be unlocked to get EMS ECU back in system DTC Description EMS ECU UICU DTC Description Immobilizer authentication error B2FFF 00 B2F44 00 No ECM Challenge EMS Authentication Locked B2FFE 00 B2F45 00 Authentication failed time out DTC INFORMATION PROBABLE CAUSES OF FAILURE NORMAL OPERATION Ignition ON After success...

Страница 75: ...nd shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 75 STEP 1 UNLOCKING THE EMS ECU PRE CONDITION Turn ON ignition TEST PROCEDURE Connect i SECURE dealer tool and navigate to EMS ECU unlocking tab and click on UNLOCK EMS ECU button Refer EMS ECU UNLOCK PROCEDURE Always use i SECURE V4 0 7 and above for any security components ECU programming in XUV 7OO ACCEPTANCE CRITERIA After s...

Страница 76: ... Mahindra Ltd 13 17 B2F4D 00 ANTENNA COIL BREAKAGE 13 17 1 EMS and IMMO ID EMS ECU and UICU ID s are checked for any mismatch during every ignition cycle DTC Description EMS ECU UICU DTC Description Immobilizer authentication error B2FFF 00 B2F4D 00 Antenna coil breakage B2F40 00 Missing transponder No response B2F44 00 No ECM Challenge B2F45 00 Authentication failed time out DTC INFORMATION PROBA...

Страница 77: ...at the Authorized Service Centre of Mahindra Mahindra Ltd will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 77 13 17 2 DIAGNOSTIC PROCEDURE STEP 1 REPLACE UICU AND PERFORM UICU PROGRAMMING PRE CONDITION Replace UICU to new one Turn ON ignition TEST PROCEDURE Connect i SECURE dealer tool and perform UICU assignment Always use i SECURE V4 0 7 and ...

Страница 78: ... shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 13 18 U2817 00 IMMO FEATURE CODE ERROR ILLUMINATION RING 13 18 1 IMMOBILIZER RING Immobilizer will have immo coil which is soldered to the immobilizer main PCB Immo illuminating ring represents the immo coil area DTC Description EMS ECU UICU DTC Description U2817 00 Illumination ring Feature Coding Not Done DTC INFORMATION PROBABL...

Страница 79: ...a 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 2021 Mahindra Mahindra Ltd 79 13 18 2 DIAGNOSTIC PROCEDURE STEP 1 PERFORM UICU FLASHING PRE CONDITION Turn ON ignition TEST PROCEDURE Connect i FLASH dealer tool and flash the UICU to writ...

Страница 80: ...Mahindra Ltd will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 13 19 U1517 00 IMMO VARIANT CODE ERROR 13 19 1 VARIANT CODE In universal immobilizer IMMO variant code is written through i FLASH for vehicle compatibility DTC Description EMS ECU UICU DTC Description U1517 00 Immo variant code error DTC INFORMATION PROBABLE CAUSES OF FAILURE NORMAL ...

Страница 81: ...n 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 2021 Mahindra Mahindra Ltd 81 13 19 2 DIAGNOSTIC PROCEDURE STEP 1 VARIANT CODE NOT WRITTEN IN UICU PRE CONDITION Turn ON ignition TEST PROCEDURE Connect i FLAS...

Страница 82: ...ion 2021 Mahindra Mahindra Ltd 13 20 U1217 00 IMMO BUS OFF ERROR 13 20 1 BUS OFF Immobilizer ECU receives messages from other ECU s through the CAN BUS IMMO BUS OFF error arises when immobilizer is unable to receive or transmit messages through the CAN BUS DTC Description EMS ECU UICU DTC Description U1217 00 Immo bus off error DTC INFORMATION PROBABLE CAUSES OF FAILURE NORMAL OPERATION Ignition O...

Страница 83: ...ice Centre of Mahindra Mahindra Ltd will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 83 13 20 2 DIAGNOSTIC PROCEDURE This DTC normally appears in the UICU in healed state Check for intermittent ECUs connectivity issue in CAN STEP 1 CHECK CAN CIRCUIT PRE CONDITION Turn ON the ignition TEST PROCEDURE Check CAN circuit ACCEPTANCE CRITERIA Is the C...

Страница 84: ... liable for penalty prosecution 2021 Mahindra Mahindra Ltd 13 21 U1317 00 VIN MISMATCH IN IMMO 13 21 1 VIN IN EMS ECU AND UICU Dealer tool reads VIN from EMS ECU as the first step to initiate the assignment process before unlocking the EMS ECU DTC Description EMS ECU UICU DTC Description U1317 00 VIN mismatch in immo DTC INFORMATION PROBABLE CAUSES OF FAILURE NORMAL OPERATION Ignition ON After suc...

Страница 85: ...authorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 85 13 21 2 DIAGNOSTIC PROCEDURE Check whether the VIN in EMS ECU and UICU is matching VIN plate Check whether the DTC occurred post replacement of new EMS ECU Flashing STEP 1 VIN MISMATCH BETWEEN EMS ECU AND UICU PRE CONDITION Turn ON ignition TEST PROCEDURE Connect i SMART diagnostic tool and check VIN in EMS EC...

Страница 86: ...SPONSE ICU NODE ABSENT 13 22 1 UICU NODE ABSENT UICU node absent denotes UICU nodes is not connected in CAN During security authentication UICU is not responding to the other ECU s in CAN DTC Description EMS ECU UICU DTC Description Immobilizer authentication failed B2FFF 00 Immobilizer no response B2FF9 00 Immobilizer node absent U1117 00 DTC INFORMATION PROBABLE CAUSES OF FAILURE NORMAL OPERATIO...

Страница 87: ...ent 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 2021 Mahindra Mahindra Ltd 87 13 22 2 DIAGNOSTIC PROCEDURE STEP 1 CHECK UICU POWER AND GROUND CIRCUIT PRE CONDITION Turn ON ignition TEST PROCEDURE Check the UICU power and ground wires ACCEPTANCE CRITERIA Is the po...

Страница 88: ...cles 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 2021 Mahindr...

Страница 89: ... F42 60A ENGINE COMP FUSE BOX EMS ECU DIESEL BATT SIG IGN CRANK F20 40A F6 5A F46 5A I P 1 4 3 G R I P 1 4 3 B G R E C 1 4 3 D I G R E C 4 4 3 2 C D I R EC 14432 DI R I P 7 7 9 7 R B N 1 0 0 1 B IP 1518 R W E C 1 5 1 8 R W EC 165 DI R BP 100 R E C 4 4 3 2 A D I R L EC 160 DI R Y B A T T E R Y C 144 136 C 144 137 ENG COMP FUSE BOX F1 15A E C 1 6 2 A D I R G E C 1 6 2 B D I R G E C 1 8 1 9 D I R Y 1...

Страница 90: ... the trained personnel at the Authorized Service Centre of Mahindra Mahindra Ltd will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 14 1 1 1 CONNECTOR LOCATION 14 1 1 2 CONNECTOR VIEWS AND INFORMATION CONNEC TOR NO CONNECTOR DESCRIPTION PIN NO FUNCTION C 532 EMS ECU 60 CAN LOW 77 CAN HIGH EMS ECU DIESEL K W2L07C028_C 532 C 532K C 532K BLACK W2L07...

Страница 91: ...thorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 91 CONNEC TOR NO CONNECTOR DESCRIPTION PIN NO FUNCTION 18 PERMANENT BATTERY SUPPLY 1 BATTERY SUPPLY 1 3 BATTERY SUPPLY 2 5 BATTERY SUPPLY 3 16 IGNITION 4 BATTERY GROUND 2 6 BATTERY GROUND 3 2 BATTERY GROUND 1 14 1 1 3 DIAGNOSTIC PROCEDURE STEP 1 CHECK THE FUSES PRE CONDITION Ignition OFF TEST PROCEDURE Check the co...

Страница 92: ...age is 12V ACTION TO BE TAKEN OK NOT OK Go to step 3 Check the wiring harness for any open or short circuit and replace or repair the wiring harness STEP 3 CHECK THE BATTERY VOLTAGE AT EMS ECU PRE CONDITION Ignition OFF Remove the EMS ECU connector C 532K Ignition ON TEST PROCEDURE Check the battery voltage at pin number 1 of C 532K Check the battery voltage at pin number 3 of C 532K Check the bat...

Страница 93: ...RIA Is the resistance value is 1Ω ACTION TO BE TAKEN OK NOT OK Go to step 5 Check the wiring harness for any open or short circuit and replace or repair the wiring harness STEP 5 CHECK THE EMS ECU GROUND WIRES PRE CONDITION Ignition OFF Remove the EMS ECU connector C 532 Remove the G 5 ground terminal TEST PROCEDURE Check the resistance between pin number 4 of C 532K and G 5 Check the resistance b...

Страница 94: ...orized Service Centre of Mahindra Mahindra Ltd will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd Check the resistance between pin 160 of C 144 EMS ECU main relay and pin number 1 of C 532K Check the resistance between pin 160 of C 144 EMS ECU main relay and pin number 3 of C 532K Check the resistance between pin 160 of C 144 EMS ECU main relay a...

Страница 95: ...es 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 2021 Mahindra ...

Страница 96: ... and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd 15 1 UICU POWER SUPPLY AND GROUND WIRE CHECKING PROCEDURE 15 1 1 UICU CIRCUIT SCHEMATIC POWERTRAIN CAN C 72_G B3 C 72_H A7 C 72_E A9 G 25 1 IP SP009 4 IP CSP036 IP CSP035 C 72_A 1 C 405 F C 144 60 59 C 405 M 2 4 2 4 P 2 1 3 C 116 1 6 2 3 F19 10A ENG COMP FUSE BOX F43 60A F42 60A F41 5A INTERNAL GND R9 IGN RELAY IP FUSE BOX IMM...

Страница 97: ...e 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 2021 Mahindra Mahindra Ltd 97 15 1 1 1 CONNECTOR LOCATION 15 1 1 2 CONNECTOR VIEWS AND INFORMATION CONNECTOR NO CONNECTOR ...

Страница 98: ...entre of Mahindra Mahindra Ltd will amount to unauthorized use and shall be liable for penalty prosecution 2021 Mahindra Mahindra Ltd CONNECTOR NO CONNECTOR DESCRIPTION PIN NO FUNCTION 3 CAN HI 2 CAN LOW 4 GROUND 15 1 1 3 DIAGNOSTIC PROCEDURE STEP 1 CHECK THE FUSES PRE CONDITION Ignition OFF TEST PROCEDURE Check the condition of fuse F19 F27 F41 F42 F43 ACCEPTANCE CRITERIA Are all the fuses are OK...

Страница 99: ...ion 2021 Mahindra Mahindra Ltd 99 OK NOT OK Go to step 3 Check the wiring harness for any open or short circuit and replace or repair the wiring harness STEP 3 CHECK THE BATTERY VOLTAGE IN IGNITION INPUT WIRE PRE CONDITION Ignition OFF Remove the UICU connector C 116 Ignition ON TEST PROCEDURE Check the battery voltage at pin number 6 of C 116 ACCEPTANCE CRITERIA Is the battery voltage is 12V ACTI...

Страница 100: ...ission 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 2021 Mahindra Mahindra Ltd OK NOT OK Contact TEKline for further assi...

Страница 101: ...les 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 2021 Mahindra...

Страница 102: ... O B I L I Z E R I P 1 5 0 1 P M Y I P 1 5 0 2 P P G IP 1502 PU G E C 1 5 0 1 P D Y E C 1 5 0 2 P D G IP 1502 PG G I P 1 5 0 1 P A Y I P 1 5 0 2 P A G I P 1 5 0 1 P D Y I P 1 5 0 2 P D G I P 1 5 0 1 P H Y I P 1 5 0 2 P H G EC 1502 PB G EC 1501 PB Y E C 1 5 0 1 Y E C 1 5 0 2 G IP 1501 PU Y I P 1 5 0 1 P P Y I P 1 5 0 2 P M G IP 1501 PG Y IP 1502 PE G IP 1501 PE Y C 108 7 8 EPS ECU CAN LOW CAN HIGH ...

Страница 103: ...lation 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 2021 Mahindra Mahindra Ltd 103 16 1 1 1 CONNECTOR LOCATI...

Страница 104: ...uction 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 2021 Mahindra Mahindra Ltd IMMOBILIZER W2L15...

Страница 105: ...CONNECTOR NO CONNECTOR DESCRIPTION PIN NO FUNCTION C 555 DIAGNOSTIC CONNECTOR 14 CAN LOW 6 CAN HIGH C 532K EMS ECU 77 CAN HIGH 60 CAN LOW C 116 IMMOBILIZER 3 CAN HIGH 2 CAN LOW C 111 TERMINATING RESISTOR 1 CAN HIGH 2 CAN LOW 16 1 1 3 DIAGNOSTIC PROCEDURE STEP 1 CHECK FOR SHORT CIRCUIT BETWEEN CAN HIGH AND CAN LOW PRE CONDITION Ignition OFF Battery terminal disconnected TEST PROCEDURE Measure the r...

Страница 106: ...1 Mahindra Mahindra Ltd ACCEPTANCE CRITERIA Resistance 60 10 Ω ACTION TO BE TAKEN OK NOT OK GO TO STEP 6 GO TO STEP 2 STEP 2 CHECK CONNECTIVITY BETWEEN CAN HIGH AND CAN LOW AT DLC CONNECTOR PRE CONDITION Ignition OFF Disconnect all the ECUs and terminating resistor from the CAN network TEST PROCEDURE Measure the resistance between pin 14 and pin 6 of the DLC connector ACCEPTANCE CRITERIA Resistanc...

Страница 107: ...terminal resistor Replace the terminal resistor with a new one Check and confirm that ECUs are able to communicate with i SMART Clear the DTC and verify STEP 4 CHECK INTERNAL SHORT CIRCUIT IN CAN LOW AND CAN HIGH OF EMS ECU PRE CONDITION Ignition OFF Battery terminals DISCONNECTED EMS ECU only connected with the CAN All other ECUs and Terminating resistor disconnected TEST PROCEDURE Measure the re...

Страница 108: ...ecution 2021 Mahindra Mahindra Ltd Measure the resistance between pin 14 and pin 6 of the DLC connector C 555 ACCEPTANCE CRITERIA Resistance 60 10 Ω ACTION TO BE TAKEN OK NOT OK GO TO STEP 6 Suspect internal short in immobilizer Replace the immobilizer with a new one Check and confirm that ECUs are able to communicate with i SMART Clear the DTC and verify STEP 6 CHECK CAN HIGH LOW WIRES FOR SHORT ...

Страница 109: ... short to battery ground If the ECUs are OK identify the harness which is having internal short to battery Identify and replace the faulty wiring harness ECUs Check and confirm that ECUs are able to communicate with i SMART Clear the DTC and verify STEP 7 CHECK FOR CAN HIGH LOW CIRCUIT SHORT TO BATTERY POSITIVE PRE CONDITION Ignition ON TEST PROCEDURE Measure the voltage between pin 14 of DLC conn...

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