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Author: Balaji / Amar /
Nitin / Umapathi /
Deepak
Page: 102 of 138
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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.
U0164-08:- Lost communication with HVAC Control Module- Message Timeout Failure
Overview:-
ISO Code
U0164-08
Customer Symptom
No Customer symptom
Fault Effects (On Vehicle)
No vehicle effect.
Lamp Status (If Any)
N.A
Fault Detection Condition
1. HVAC connector is not connected properly or
disconnected from its location
2. CAN Stub wire from HVAC connector side is
disconnected.
3. HVAC ECU is not powered up.
Normal Operating Condition
HVAC ECU communicates properly with TML diagnostic
Tool.
Probable Trouble Area
Disconnection of the HVAC connector
Healing Condition
To fix the HVAC connector correctly and Fix the wiring
harness issues from HVAC side.
Trouble Shooting:-