TIAGO/TIGOR AMT Gasoline DTC Troubleshooting Guide Version: 4.0 Date: 18-04-2017 Author: Sathi/Anupama Page: 379 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 ECM in TCM in current state ? No (In history) Check continuity between TCM CAN_H (25 ) to ECM Diesel CAN_H(19)/ ECM Gasoline (C1,32) and TCM CAN_L (28 ) to ECM Diesel CAN_L(18)/ ECM Gasoline (C1,44) in vehicle wiring side connector. Is continuity there? Repair the wiring harness if continuity is not there Clear DTC Stop Yes Yes No U0100-08 Lost of communication with Engine Control Module - Bus Signal/Message Failure 1. Check ECM ECU fuses are blown. 2. Also, check ECM ECU is powered up properly with battery, ignition and ground lines.
RkJQdWJsaXNoZXIy MTIwNTUz