TML HARRIER Infotainment DTC Troubleshooting guide Version: 0.2 Draft Date: 31-Jul-18 Author: Vijaya Bhaskar B/Pritam Bansod Page: 103 of 113 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. Start Read IVN DTCs in Head Unit If MTO logged against HVAC Control Module in current state? No (In history) Check continuity between HVAC Control Module CAN_H (Connector C1 pin no. 24 ) to IPC CAN_H(pin no. 6) and HVAC Control Module CAN_L (Connector C1 pin no. 22 ) 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 C1 pin no.11), Battery (Connector C1 pin no. 15,16) and Ground (Connector C1 pin no. 1,2) of HVAC Control Module is properly connected or not. Also check fuse blown (Name: F18, Rating:10Amp) Do necessary repair in the harness Yes Yes No U0164-08 Lost Communication with HVAC Control Module - Bus Signal / Message Failures
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