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

X0 MCE (Tiago / Tigor) Instrument Cluster DTC Troubleshooting Data Version: 1.4 Date: 14-Dec-19 Author: Jeeva Raj / Sharad Shivane Page: 125 of 135 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. Overview:- ISO Code U0401-81 Customer Symptom Engine Coolant temp lamp ON, No Indication on Temp bar graph display, AFE,IFE screen display will be --.--, Current gear display will be ‘ F ’ Fault Effects (On Vehicle) Engine Coolant temp lamp ON, No Indication on Temp bar graph display, AFE,IFE screen display will be --.--, Current gear display will be ‘ F ’ Lamp Status (If Any) Engine Coolant temp lamp ON Fault Detection Condition Relevant functional DTCs present in ECM Normal Operating Condition ECM ECU sends correct data in normal condition. Probable Trouble Area Incorrect data received from ECM. Healing Condition After rectifying relevant functional failures in the ECM ECU Trouble Shooting:- DTC’ s confirmation: - After rectification, ensure the following points using TML diagnostic tool before handing over to customer.