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Q5/X451 FATC
DTC Troubleshooting Data
Version: 1.0
Date: 16-Oct-2018
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.
Author: ERC
Page: 176 of 202
B1F52-4B:- Half Bridge Driver Thermal Warning –Over Temperature
Overview:
ISO Code
B1F52-4B
Customer Symptom
Some or all functionality may be lost
Fault Effects (On Vehicle)
Some or all functionality may be lost
Lamp Status (If Any)
CCM shall shut off the driver
Fault Detection Condition
Diagnosis word contains thermal warning indication bit. This
bit is treated as an early warning and will be set to High if the
junction temperature reaches warning threshold.
Normal Operating Condition
CCM is fully functional based on the User input on CCH
Probable Trouble Area
NA
Healing Condition
Replace with new CCM