TML Infotainment DTC Troubleshooting guide for Nexon MCE Version: 0.2 Date: 28-Feb-20 Author: Pritam Bansod Page: 72 of 95 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. Trouble Shooting:- Start Read IVN DTCs in Silver Box If MTO logged against BCM in current state? No (In history) Check continuity between BCM CAN_H (Connector A pin no. 48 ) to IPC CAN_H(pin no. 6) and BCM CAN_L (Connector A pin no. 49 ) to IPC CAN_L(pin no. 5) in vehicle wiring side connector. Is continuity there? Repair the wiring harness Clear DTC Stop Check Ignition (Connector A pin no.9), Battery (Connector C pin no. 1,2 and connector E pin no.1) and Ground (Connector A pin no.34,47 and Connector B pin no. 26) of BCM is properly connected or not. Also check fuse blown (Name: F4, F7 and F9; Rating: 15A for all) Do necessary repair in the harness Yes Yes No U0140-08 Lost Communication with Body Control Module - Bus Signal / Message Failures
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