TIAGO TIGOR BSVI - SERVICE MANUAL - DTC 24-12-2021

Vehicle Platform: Zest, Bolt, Tiago, Tigor, Osprey, Q501, X451, Q502 ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 3.1 Date: 30-11-2019 Author: BCM COC Page: 152 of 1106 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 – 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  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:-