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 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. 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:-
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