Nexon_MCE2_7inch_Digital Instrument Cluster_DTC Trouble Shooting Data Version: 1.0 Date: 09-May-2023 Author: Suraj Patil / Rajesh Patil Page: 161 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. U0422 - 81: - Invalid Data Received from Body Control Module Overview: - ISO Code U042281 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 BCM. Normal Operating Condition BCM ECU sends correct data in normal condition. Probable Trouble Area Incorrect data received from BCM. Healing Condition After rectifying all the functional failures in the BCM ECU Trouble Shooting: - DTC’s confirmation: - After rectification, ensure the following points using TML diagnostic tool before handing over to customer. a) DTC should not be present in ECU memory. 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 BCM ECU St o p Clear DTC Stop Yes Check Relevant functional DTC’s in BCM ECU Is DTC in permeant? No (DTC in History?)
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