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: 466 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. BCM ECU Faulty Replace BCM ECU Continuity found? Correct BCM side wiring harness (Short To Ground) YES Check continuity between BCM connector pin [C1-42] and BCM ground pin[ C1-34/ C1-47] 1. Take out the relay from its mounting base. 2. Check the continuity between the two terminals of relay coil. Is Relay faulty? Replace with the correct and working Relay YES NO NO A B B160B - 14: Door Unlock control driver Relay/ Tailgate Unlock Control Relay- Circuit Short to Ground or Open YES 1.Remove door unlock relay/Tailgate Unlock relay mating connector 2. Perform the visual check of connectors for pin bend or damaged etc. Is connector faulty? Correct Relay mating connector fault (Terminals Bend) NO