Vehicle Platform: OSPREY ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 1.4 Date: 15 May 2018 Author: Body CoC Page: 285 of 855 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. B220A – 11: Front Fog Lamp Control Switch – Short to Ground Overview: ISO Code B220A - 11 Customer Symptom 1. Front fog lamps always ON. 2. Facia Switch illumination for fog lamp always ON Fault Effects (On Vehicle) 1. Front fog lamps always ON. 2. Facia Switch illumination for fog lamp always ON 3. Battery Drain Lamp Status (If Any) Always ON Fault Detection Condition This fault will be logged after the input switch test routine execution. User has to operate the switch manually during routine. If short to ground fault is detected for front fog lamp switch then this DTC code will be returned with the Routine results. Normal Operating Condition There should not be any fault returned by routine Probable Trouble Area 1. BCM connector Fault 2. Front fog lamp switch input wire Short to ground from cockpit wiring harness 3. Switch damaged or stuck 4. Facia Switch connector fault. 5. BCM ECU fault Healing Condition 1. Ignition OFF ON 2. Clear DTC Command Component Details: Front fog lamp switch is part of facia switch bank. If the IGN is ON and headlamps / position lamps are ON and user presses the front fog lamp switch, front fog lamps will turn ON. Preliminary Checks: 1. Check Battery Voltage (12.5 V & above) 2. Check ECU pins for oxidation, bending & damage. Trouble Shooting:-
RkJQdWJsaXNoZXIy MTIwNTUz