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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: 119 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.
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
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:-