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Vehicle Platform: OSPREY
ECU Name: Hella Body Control Module (BCM) DTC
Troubleshooting Data
Version: 1.1
Date: 03 Mar 2017
Author: Body CoC
Page: 139 of 784
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TATA MOTORS Ltd.
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B225A– 12: Front Fog Lamp Relay – Short to Battery
Overview:
ISO Code
B225A - 12
Customer Symptom
1. Front Fog Lamp always OFF.
2. Front Fog Facia Switch telltale always OFF
Fault Effects (On Vehicle)
1. Front Fog Lamp always OFF.
2. Front Fog Facia Switch telltale always OFF
Lamp Status (If Any)
Always OFF
Fault Detection Condition
This fault gets logged by BCM when front fog lamp
output is shorted to battery .
Normal Operating Condition
If the IGN is ON and headlamps / position lamps are ON
then Front Fog Lamp shall turn ON immediately after
pressing the Front Fog Lamp switch.
Probable Trouble Area
1. BCM connector Fault
2. Front wiring harness (Front Fog Lamp output
wire Short to battery)
3. Front Fog Lamp bulb blown /lamp damaged
4. BCM ECU fault
5. Front Fog Lamp mating connector fault
Healing Condition
1. Ignition OFF
Æ
ON
2. Clear DTC Command
Component Details:
Front fog lamps are located at front side of vehicle. If the IGN is ON and headlamps / position lamps
are ON and user presses the front fog lamp switch then front fog lamps will turn ON.
Preliminary Checks:
1. Check Battery Voltage (
9-16 V
)
2. Check ECU pins for oxidation, bending & damage.
Trouble Shooting:-