Nexon MCE 2 Gen2 Digital Instrument Cluster DTC Troubleshooting Data Version: 1.0 Date: 11-June-23 Author: Vasant Date Page: 132 of 141 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. U0402-81:- Invalid Data Received From TCM Overview:- ISO Code U0402-81 Customer Symptom Current gear display will be ‘F’ Fault Effects (On Vehicle) Current gear display will be ‘F’ Lamp Status (If Any) TCM Lamp ON Fault Detection Condition Relevant functional DTCs present in TCM Normal Operating Condition TCM ECU sends correct data in normal condition. Probable Trouble Area Incorrect data received from TCM. Healing Condition After rectifying relevant functional failures in the TCM ECU Trouble Shooting:- Start Connect the diagnostic tool Read DTCs and check whether it’s permanent or in history Check relevant functional DTCs in the TCM ECU Follow the procedure to diagnose relevant functional DTCs in the TCM ECU NO YES Is DTC Permanent ? Clear DTC Stop (DTC in history) U0402-81-Invalid Data Received From TCM
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