Nexon_MCE2_7inch_Digital Instrument Cluster_DTC Trouble Shooting Data Version: 1.0 Date: 09-May-2023 Author: Suraj Patil / Rajesh Patil Page: 159 of 167 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. U1499 - 81:- Invalid Data Received From Telematics Control Unit Overview: - ISO Code U0402-81 Customer Symptom No customer symptom Fault Effects (On Vehicle) No effects. Lamp Status (If Any) N. A Fault Detection Condition Relevant functional DTCs present in Telematics. Normal Operating Condition Telematics ECU sends correct data in normal condition. Probable Trouble Area Incorrect data received from Telematics. Healing Condition After rectifying all the functional failures in the Telematics ECU Trouble Shooting: - Read DTCs and check whether it’s permanent or in history Start Connect the diagnostic tool Follow the procedure to diagnose relevant functional DTC’s in the Telematics ECU Sto p Clear DTC Stop Yes Check Relevant functional DTC’s in Telematics ECU Is DTC in permeant? No (DTC in History?)
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