TIGOR AMT

TIAGO/TIGOR AMT Gasoline DTC Troubleshooting Guide Version: 4.0 Date: 18-04-2017 Author: Sathi/Anupama Page: 367 of 427 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. Trouble Shooting:- Start Read IVN DTCs in TCM Is MTO logged against ABS in TCM in current state ? No (In history) Check continuity between TCM CAN_H (25 ) to ABS CAN_H(pin no. 26) and TCM CAN_L (28 ) to ABS CAN_L(pin no. 14) in vehicle wiring side connector. Is continuity there? Repair the wiring harness if continuity is not there Clear DTC Stop Yes Yes No U0121-08 Loss of communication with Antilock Braking System- Message Failure 1. Check ABS ECU fuses ( Battery fuse 25A, Ignition fuse 5A) blown. 2. Also, check ABS ECU is powered up properly. ABS Battery(pin. 1,25), IGN(pin.28) and GND(pin 13, 38) connected properly with ABS ECU.