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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: 301 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.

B2254 – 11: Turn Right Indicator Switch Circuit – circuit short to ground

Overview:

ISO Code

B2254 - 11

Customer Symptom

1. Turn right indication always on

Fault Effects (On Vehicle)

1. Turn right 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 right

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 right indicator switch input 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 right indicator switch is part of combi switch. If the IGN is ON and turn right indication is given by user then

turn right 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:-