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: 716 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. Normal vehicle setup start Connect Diagnostic tool and Read DTC. Switch ON front wash and read DTC. Is DTC B220B-11 NO YES Stop Remove Vehicle Battery connections. (Please follow safety guidelines) 1) Remove BCM connector and check for backout/ pins bend/ damages. Yes YES Check continuity between 1) BCM connector B pin 7 and body GND in the harness connector. 2) BCM connector B pin 7 and Conn A pin 34/ 47 Yes Correct the wiring harness short and open circuit reconnect the vehicle battery and BCM Remove the Washer motor connector and check for continuity from connector B pin 7 to Wash motor conn pin1. Is continuity observed Yes No Correct the wiring harness short/ open circuit and reconnect the vehicle battery and BCM Check continuity between front wash motor pin1 and pin2 Yes Replac e the motor No Any fault observed Correct the fault No Any continuity observed No Is continuity observed B220B-11 Front washer short to GND Replac e the ECU