Vehicle Platform: Tiago,Tigor & Osprey ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 2.0 Date: 22-10-2018 Author: Parag K Page: 20 of 737 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. U0100-08:- Lost communication with ECM- Message Timeout Failure Overview: ISO Code U0100-08 Customer Symptom Rear Defogger does not turn ON Fault Effects (On Vehicle) Rear Defogger does not turn ON Lamp Status (If Any) N.A Fault Detection Condition 1. ECM connector is not connected properly or disconnected from its location 2. CAN Stub wire from ECM connector side is disconnected. 3. ECM ECU is not powered up. Normal Operating Condition ECM ECU communicates properly TML diagnostic Tool. Probable Trouble Area Disconnection of the ECM connector Healing Condition To fix the ECM connector correctly and Fix the wiring harness issues from ECM side.
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