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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: 114 of 737
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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.
B225A– 14: Front Fog Lamp Relay– Short to Ground or Open
Overview:
ISO Code
B225A - 14
Customer Symptom
1. Front Fog Lamp always ON.
Front Fog Facia Switch telltale always ON
Fault Effects (On Vehicle)
Battery drain
Lamp Status (If Any)
Always ON
Fault Detection Condition
This fault gets logged by BCM when Front Fog Lamp output is
short to ground during OFF state
Normal Operating Condition
If the IGN is ON and headlamps / position lamps are ON then
front fog lamps 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 ground)
3. Lamp damaged
4. BCM ECU fault
5. Front fog lamp 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 (9V-16V)
2. Check ECU pins for oxidation, bending & damage.
Trouble Shooting:-