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NEXON AMT
DTC Troubleshooting Guide
Version: 2.0
Date: 24-01-2018
Author: Suraj/Anupama
Page: 408 of 434
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.
140.
U0146-08:-Lost communication with Drive Control Switch
Module-DCS Bus signal/Message Failure
Overview:
ISO Code
U0146-08
Customer Symptom
TBD
Fault Effects (On Vehicle)
TBD
Lamp Status (If Any)
TBD
Fault Detection Condition
6. DCS connector is not connected properly or
disconnected from its location.
7. DCS is not powered up
8. DCS connector is not connected/ disconnected from
vehicle side wiring harness.
9. CAN_H, CAN_L or/ and both lines of TCM are
opened
10. Wrong data length (less than expected data) from
DCS
Normal Operating Condition
TCM ECU communicates properly with DCS ECU.
Probable Trouble Area
3. Disconnection of the DCS connector
4. CAN_H and CAN_L lines at TCM connector end
Healing Condition
3. To fix the DCS connector correctly and Fix the wiring
harness issues from DCS side.
4. CAN_H, CAN_L or/ and both lines of TCM are
connected properly to the TCM connector.