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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: 189 of 737
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TATA MOTORS Ltd.
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B2227 – 15: Left stop Lamp Circuit – Short to Battery or Open Circuit
Overview:
ISO Code
B2227 – 15
Customer Symptom
Left Stop Lamps always ON.
Fault Effects (On Vehicle)
1. Left Stop Lamp and CHMSL always ON.
2. Battery Drain
Lamp Status (If Any)
Always ON
Fault Detection Condition
This fault gets logged by BCM when left Stop lamp output is
shorted to battery or open circuit
Normal Operating Condition
Stop Lamp / Brake Lamp come ON when brake is pressed.
Probable Trouble Area
1. BCM connector Fault
2. Left Stop lamp output wire Short to battery or open
circuit
3. Left Stop Lamp bulb blown /lamp damaged
4. BCM ECU fault
5. Left Stop lamp mating connector fault
Healing Condition
1. Ignition OFF
ON
2. Clear DTC Command
Component Details:
Left Stop lamps are located at left rear side of vehicle Stop Lamp / Brake Lamp come ON when brake is pressed.
Preliminary Checks:
1. Check Battery Voltage (12.5 V & above)
2. Check ECU pins for oxidation, bending & damage.
Trouble Shooting:-