Vehicle Platform: OSPREY ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 1.4 Date: 15 May 2018 Author: Body CoC Page: 333 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. B2248 – 15: Right Rear Fog Lamp Circuit – Short to Battery or Open Circuit Overview: ISO Code B2248 - 15 Customer Symptom 1. Right Rear Fog Lamps always ON. 2. Facia Switch illumination for rear fog lamp always ON Fault Effects (On Vehicle) 1. Right Rear Fog Lamps always ON. 2. Facia Switch illumination for rear fog lamp always ON Lamp Status (If Any) Always ON Fault Detection Condition This fault gets logged by BCM when right rear fog lamp output is shorted to battery or open circuit Normal Operating Condition If the IGN is ON and headlamps / position lamps are ON and front fog lamps are ON then rear fog lamps shall turn ON immediately after pressing the rear fog lamp switch. Probable Trouble Area 1. BCM connector Fault 2. Right rear fog lamp output wire Short to battery or open circuit from rear wiring harness 3. Right Rear Fog Lamp bulb blown /lamp damaged 4. Right rear fog lamp mating connector fault 5. BCM ECU fault Healing Condition 1. Ignition OFF ON 2. Clear DTC Command Component Details: Right rear fog lamps are located at right rear side of vehicle. If the IGN is ON and headlamps / position lamps are ON and front fog lamps are ON and user presses the rear fog lamp switch then rear 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:-
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