Vehicle Platform: OSPREY ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 1.4 Date: 15 May 2018 Author: Body CoC Page: 42 of 855 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. U0164-08:- Lost communication with HVAC Control Module- Message Timeout Failure Overview: ISO Code U0164-08 Customer Symptom Heater rear window does not operate Fault Effects (On Vehicle) Heater rear window does not operate 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.
RkJQdWJsaXNoZXIy MTIwNTUz