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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