Vehicle Platform: Tiago,Tigor & Osprey ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 2.0 Date: 22-10-2018 Author: Parag K Page: 291 of 737 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. B2253 – 11: Turn Left Indicator Switch Circuit – circuit short to ground Overview: ISO Code B2253 - 11 Customer Symptom 1. Turn left indication always on Fault Effects (On Vehicle) 1. Turn left indication always on 2. Battery Drain Lamp Status (If Any) Always ON Fault Detection Condition This fault will be logged after the input switch test routine execution. User has to operate the switch manually during routine. If short to ground fault is detected for turn left indicator switch then this DTC code will be returned with the Routine results. Normal Operating Condition There should not be any fault returned by routine Probable Trouble Area 1. BCM connector Fault 2. Turn left indicator switch short to ground from Cockpit wiring harness 3. Turn indicator switch damaged or stuck 4. Combi switch connector fault. 5. BCM ECU fault Healing Condition 1. Ignition OFF ON 2. Clear DTC Command Component Details: Turn left indicator switch is part of combi switch. If the IGN is ON and turn left indication is given by user then turn left indicator lamps will flash with predefined frequency. Preliminary Checks: 1. Check Battery Voltage (12.5 V & above) 2. Check ECU pins for oxidation, bending & damage. Trouble Shooting:-
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