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: 106 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. Open Circuit? Perform the visual check of Combiswitch connector for pin bend or damaged etc. Is connector faulty? Check continuity at HeadlampON contact of combiswitch mating connector with Battery supply. Continuity found? BCM ECU Faulty Correct wiring harness (Open Circuit) YES NO Correct connector fault at combi switch connector (Terminal Bend) Correct connector fault at combi switch mating connector (Short to battery) YES NO YES NO Replace BCM ECU Check continuity between HeadlampON terminal and Battery supply terminal of combiswitch Connector (Please refer the combiswitch drawings) Continuity found? YES 1. Combiswitch is faulty 2. Replace combiswitch NO A B B221A – 12: HeadLampON signal – Circuit Short To Battery
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