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: 416 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. 1. Disconnect Ignition switch 2. Check Continuity Between BCM side connector pin [C1-23] with BCM Battery Ground [C1-34/ C1-47] Continuity Found? Correct Wiring harness (Short To Ground) YES NO 1. Remove Ignition switch mating connector. 2. Check continuity of Ignition switch contact [C1- 23] with BCM battery [C3-2] Continuity Found? YES NO 1. Ignition switch faulty. 2. Replace Ignition switch BCM ECU Faulty Replace BCM ECU A B DTC’s confirmation:- After rectification, ensure the following points by using TML diagnostic tool before handing over to customer. Check DTC U1000 - 11 is not logged Circuit Schematic Diagram:-
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