Vehicle Platform: OSPREY ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 1.4 Date: 15 May 2018 Author: Body CoC Page: 71 of 855 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 Overview: ISO Code U0424-81 Customer Symptom Heater rear window does not operate Fault Effects (On Vehicle) Heater rear window does not operate Lamp Status (If Any) N.A Fault Detection Condition Relevant functional DTCs present in ECM Normal Operating Condition HVAC ECU sends correct data in normal condition. Probable Trouble Area Incorrect data received from HVAC. Healing Condition After rectifying relevant functional failures in the HVAC ECU
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