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: 581 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 Is connector faulty? Correct connector fault (Terminals Bend) YES 1.Take out Ambient Foot well Lights. 2. Check if bulb is blown Continuity found? Correct BCM side wiring harness (Short To Battery) YES NO Check continuity between BCMconnector pin [C2-13] and BCM battery [C3-2/C3-1] 1. Remove Ambient Foot well Lights 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 Bulb blown? Replace the bulb (Open Circuit) 1. Remove all BCMconnector. 2. Take out Ambient Foot well Lights output wire [C2-13] from connector. 3. Reconnect all connectors including battery. 4. Check if Ambient Foot well Lights is ON? Ambient Foot well Lights is ON? Reconnect all connectors firmly YES NO YES NO NO A B B1F14 – 15: Ambient Foot well Lights – Short To Battery / Open