TIAGO/TIGOR AMT Gasoline DTC Troubleshooting Guide Version: 4.0 Date: 18-04-2017 Author: Sathi/Anupama Page: 364 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. 127. U0001-88 - Vehicle Communication Bus A- Bus off Overview: ISO Code U0001-88 Customer Symptom All warning lamps will be ON Fault Effects (On Vehicle) 1. If vehicle in standstill; it will not crank 2. If in running condition; no gear shift allowed, Gear will be forced to Neutral Lamp Status (If Any) All warnings lamps will be ON. Fault Detection Condition 1. Short circuit between CAN_H-CAN_L, CAN_H –GND, CAN_L-Vbatt, CAN_L-GND and/or CAN_H- Vbatt 2. Open circuit of CAN_H/ CAN_L/ both lines Normal Operating Condition TCM ECU communicates properly with TML diagnostic Tool. Probable Trouble Area CAN_H and CAN_L wires Healing Condition 1. Removal of the above mentioned shorts in the wiring harness or at ECU pin. 2. Reconnecting CAN_H/ CAN_L/ both lines
RkJQdWJsaXNoZXIy MTIwNTUz