X2 Eagle ESP DTC Troubleshooting Data Version: 1.0 Date: 23-Oct-15 Author: ERC, Chassis E&E CoC Page: 196 of 224 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. U0102-08:- Lost communication with Transfer Case Control Module Overview: ISO Code U0102-08 Customer Symptom None Fault Effects (On Vehicle) ABS, EBD & ESP – Available Lamp Status (If Any) ABS – OFF, EBD – OFF, ESP – OFF Fault Detection Condition 1. TCC connector is not connected properly or disconnected from its location. 2. CAN wire from TCC connector side are disconnected 3. TCC VCC line fuse blown/disconnected. 4. CAN_H, CAN_L or both lines of TCC are open circuit Normal Operating Condition TCC communicates properly with TML diagnostic Tool. Probable Trouble Area 1. TCC connector / TCC fuse. 2. CAN lines of TCC Healing Condition 1. TCC is connected and no wiring harness issues from TCC side 2. CAN_H, CAN_L or both lines of TCC 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/ESP in IGN ON condition Note: After rectification please give Ignition latch to heal the DTC.
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