X2 Eagle ABS DTC Troubleshooting Data Version: 1.0 Date: 03-Dec-15 Author: ERC, Chassis E&E CoC Page: 141 of 154 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. U0101 - 08:- Lost Communication With TCM Overview: ISO Code U0101-08 Customer Symptom ABS lamp will be ON. Fault Effects (On Vehicle) NA Lamp Status (If Any) ABS lamp will be ON. Fault Detection Condition 1. TCM connector is not connected properly or disconnected from its location. 2. CAN wire from TCM connector side are disconnected 3. TCM IGN & Battery fuse blown. 4. CAN_H, CAN_L or both lines of TCM are open circuit Normal Operating Condition TCM ECU communicates properly with TML diagnostic Tool. Probable Trouble Area 1. TCM connector / TCM fuse. 2. CAN lines of TCM ECU Healing Condition 1. TCM ECU is connected and no wiring harness issues from TCM side 2. CAN_H, CAN_L or/ and both lines of TCM are connected properly Preliminary Check: 1. Check resistance in Diagnostic CAN pin no. 6 and 14. It should be 120 Ω. 2. Check for short conditions between CAN_H (pin no. 26)-CAN_L (pin no. 14), CAN_H (pin no. 26)-GND (pin no. 13), CAN_L (pin no. 14)-GND (pin no. 13), CAN_H (pin no. 26)-Vbatt (pin no. 1) and CAN_L (pin no. 14)-GND (pin no. 13). There should not be any short circuit conditions. 3. Check continuity between IPC CAN_H (pin no. 8) vehicle side connector to OBD connector CAN_H (pin no. 6) and CAN_L (pin no. 7) vehicle side connector to ODB connector (pin no.14) 4. Read IVN DTCs in ABS in IGN ON condition Note: After rectification please give Ignition latch to heal the DTC.
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