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Nexon Gasoline – EMS ECU Bosch
DTC Troubleshooting Manual
Version: 0.1
Date: 26-08-2017
Prepared By: Sunu S Babu/Yogesh Jadhav
Checked By: Yeshwant Jadhav
Approved By: Satish Kumar
Document Part No: 2921 02 224 A1736
Page: 1185 of 1203
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.
U0164-31_Loss of communication with HVAC Control Module- Message Timeout Failure
Overview:
ISO Code
U0164-31
Customer Symptom
Vehicle will not function as per design intent
Fault Effects (On Vehicle)
Vehicle will not function as per design intent
Lamp Status (If Any)
None.
Fault Detection Condition
1. HVAC Control Module connector is not connected
properly or disconnected from its location.
2. CAN Stub wire from HVAC Control Module connector
side is disconnected.
3. HVAC Control Module is not powered up.
Normal Operating Condition
HVAC Control Module communicates properly with TML
diagnostic Tool.
Probable Trouble Area
Disconnection of the HVAC connector
Healing Condition
To fix the HVAC Control Module correctly and Fix the wiring
harness issues from HVAC Control Module side.