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PSCM
DTC Troubleshooting Guide for Nexon
Version: 1.1
Date: 21/06/2017
Author: E&E Chassis - ERC
Page: 135 of 156
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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.
U0401 - 81: Invalid Data Received from ECM/PCM”A”- Invalid serial data received
Overview:
ISO Code
U0401-81
Customer Symptom
No warning lamp, No heavy steering
Fault Effects (On Vehicle)
NA
Lamp Status (If Any)
Warning lamp OFF
Fault Detection Condition
Incorrect data received from ECM
Normal Operating Condition
ECM ECU sends correct data in normal condition.
Probable Trouble Area
ECM ECU
Healing Condition
After rectifying relevant functional failures in the ECM ECU.
Component Details:
NA
Preliminary Checks:
NA