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

Vehicle Platform: Zest, Bolt, Tiago, Tigor, Osprey, Q501, X451, Q502 ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 3.1 Date: 30-11-2019 Author: BCM COC Page: 655 of 1106 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. Is connector faulty? Correct connector fault (Terminals Bend) YES Check continuity between BCM connector pin[ C1-12] and BCM ground [C1-34/C1-47] Continuity found? Correct BCM side wiring harness ( Short to Ground) YES 1. Remove Rear washer switch mating connector 2. Perform the visual check of connectors for pin bend or damaged etc. Is connector faulty? Correct connector fault (Terminals Bend) YES NO Check continuity between two terminals of Front Washer switch Continuity found? BCM ECU Faulty Replace BCM ECU Check continuity between Rear Washer switch terminal [pin details TBD] and ground [ground details TBD] NO NO NO YES A B B223B – 23: Rear Wash Switch – Signal Stuck Low 1. Switch is faulty 2. Replace combi switch