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: 632 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. A B Are connectors loose? 1. Remove BCM Connectors 2. Perform visual check for pin bent or damage Is any connector faulty? Correct the connect fault Yes Check continuity between BCM CAN-H [C1- 48] and CAN-L [C1-49] with ground, battery, each other, any other pin of Connector-1 No Is continuity found? Correct the BCM side wiring harness to remove wrong continuity Check continuity between 1. BCM CAN-H [C1-48] & HU CAN-H [C1-2] 2. BCM CAN-L [C1-49] & HU CAN-L [C1-5] No Yes Reconnect the connectors firmly Yes No C Check BCM Connectors for terminal back out Disconnect vehicle battery connection (Please follow safety guidelines)