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: 760 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 Is connector faulty? Check continuity between BCM connector pin[C1-28] and BCM battery[C3-2/C3-1]. Continuity found? 1. Remove express down matting connector. 2. Perform visual check of connector for pins bend or damaged etc. Is connector faulty? 1. Remove all BCM connector. 2.. Reconnect all connectors including battery. 3. Check if express down operation is working properly. Is function working properly ? BCM ECU faulty Replace BCM ECU Correct connector fault(Terminals bend) Correct BCM side wiring harness.(Short to battery) Correct connector fault(Terminals bend) No No No Yes Yes Yes B Yes B1326– 12 :Express down output – STB No