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: 307 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. B2503 -11: Reverse Gear Selection Switch - circuit short to ground/ open circuit START Connect Diagnostic tool and Run Input Test Routine and operate the switches as mentioned in the input switch test routine specification. Is DTC B2503-11 logged by Routine? Disconnect vehicle battery connection. (Please follow the safety guidelines) Check BCM and Gear selection switch connectors for terminal backout Are connectors loose? Reconnect connectors firmly YES NO 1.Remove BCM Connector. 2.Perform visual check of connectors for pins bent or damaged etc. Is connector faulty? Correct connector fault (Terminals Bend) YES NO Check Fuse ( Reverse and break lamp fuse/ Battery fuse) Fuse Blown? Replace the Fuse (Open Circuit) YES NO STOP YES NO A B