3794 / 4910
X2 Eagle
ABS DTC Troubleshooting Data
Version: 1.0
Date: 03-Dec-15
Author: ERC, Chassis E&E CoC
Page: 141 of 154
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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.