Vehicle Platform: Nexon-EV ,Nexon-MCE ECU Name: Telematics Control Unit (TCU) DTC Troubleshooting Data Version: 1.4 Date: 16-09-2020 Author: TCM COC Page: 3 of 121 Copyright © TATA MOTORS Ltd. This document must not be used in any way, such as copying and redistributing to third parties, without the consent of author. Contents Change History ........................................................................................................................................................................ 2 IVN DTCs............................................................................................................................................................................... 6 CAN Bus Architecture for Nexon ....................................................................................................................................... 7 CAN Wiring Harness Diagram for Nexon ......................................................................................................................... 8 Abbreviation .......................................................................................................................................................................... 9 Pin Diagram and Description ............................................................................................................................................ 10 Preliminary Check .............................................................................................................................................................. 11 U3000 - 08:- Control Module - Bus Signal / Message Failures ................................................................................... 12 U3006 - 16:- Control Module Input Power "A" - circuit voltage below threshold ...................................................... 14 U3006 - 17:- Control Module Input Power "A" - circuit voltage above threshold ...................................................... 16 U1006 - 4B:- Control Module Internal - over temperature ........................................................................................... 18 U0422 - 81:- Invalid Data Received From Body Control Module - invalid serial data received ............................. 20 U0424 - 81:- Invalid Data Received From HVAC Control Module - invalid serial data received ........................... 22 U1622 - 81:- Invalid Data Received From Vehicle Control Unit - invalid serial data received ............................... 24 U1617 - 81:- Invalid Data Received From PEPS - invalid serial data received ........................................................ 26 U1309 - 08:- Lost Communication with Antilock Braking System/Electronic Stability Program (ABS/ESP) Control Module - Bus Signal / Message Failures .......................................................................................................... 28 U1320 - 08:- Lost Communication with Vehicle Control Unit - Bus Signal / Message Failures ............................. 30 U1611 - 57:- Master Electronic Control Module Communication from Backup Electronic Control Module - missing message ................................................................................................................................................................ 32 U0028 - 88 :- Vehicle Communication Bus A - bus off ................................................................................................. 34 U0037 - 88 :- Vehicle Communication Bus B - bus off ................................................................................................. 36 U0402 - 81 :- Invalid Data Received From TCM (Transmission Control Module) - invalid serial data received . 38 U0420 - 81 :- Invalid Data Received From Power Steering Control Module - invalid serial data received .......... 40 U0401 - 81:- Invalid Data Received From ECM/PCM "A" - invalid serial data received ......................................... 42 U0423 - 81:- Invalid Data Received From Instrument Panel Cluster Control Module - invalid serial data received ............................................................................................................................................................................... 44 U0101 - 08 :- Lost Communication With TCM - Bus Signal / Message Failures ...................................................... 46 U0131 - 08 :- Lost Communication With Power Steering Control Module - Bus Signal / Message Failures ....... 48 U0140 - 08 :- Lost Communication With Body Control Module - Bus Signal / Message Failures ......................... 50
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