TIAGO TIGOR BSVI - SERVICE MANUAL - DTC 24-12-2021

Vehicle Platform: Zest, Bolt, Tiago, Tigor, Osprey, Q501, X451, Q502 ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 3.1 Date: 30-11-2019 Author: BCM COC Page: 59 of 1106 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. U0424 – 81 :- Invalid Data Received From HVAC – Invalid Serial Data Received Overview: ISO Code U0424-81 Customer Symptom N/A. Fault Effects (On Vehicle) N/A. Lamp Status (If Any) N/A. Fault Detection Condition Relevant functional DTCs present in HVAC Normal Operating Condition HVAC ECU sends correct data in normal condition. Probable Trouble Area Incorrect data received from HVAC. Healing Condition After rectifying all the functional failures in the HVAC ECU