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Vehicle Platform: Tiago,Tigor & Osprey

ECU Name: Hella Body Control Module (BCM)

DTC Troubleshooting Data

Version: 2.0

Date: 22-10-2018

Author: Parag K

Page: 43 of 737

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.

U0401-81:- Invalid Data Received From ECM

Overview:

ISO Code

U0401-81

Customer Symptom

Rear Defogger does not turn ON

Fault Effects (On Vehicle)

Rear Defogger does not turn ON

Lamp Status (If Any)

N.A

Fault Detection Condition

Relevant functional DTCs present in ECM

Normal Operating Condition

ECM ECU sends correct data in normal condition.

Probable Trouble Area

Incorrect data received from ECM.

Healing Condition

After rectifying relevant functional failures in the ECM

ECU