Vehicle Platform: OSPREY ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 1.4 Date: 15 May 2018 Author: Body CoC Page: 262 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. B2260 – 15: Left Daylight Running Lamp – Short to Battery or Open Circuit Overview: ISO Code B2260 – 15 Customer Symptom Left Daylight Running Lamp always ON Fault Effects (On Vehicle) 1. Left Daylight Running Lamp always ON 2. Battery drain Lamp Status (If Any) Always ON Fault Detection Condition This fault gets logged by BCM when Left Daylight Running Lamp output is shorted to battery or open circuit Normal Operating Condition DRL turn On when Ignition is ON / vehicle is running and both Headlamp and position lamps are ON. Probable Trouble Area 1. BCM connector Fault 2. Left Daylight Running Lamp output wire Short to battery or open circuit 3. Left Daylight Running Lamp bulb blown /lamp damaged 4. BCM ECU fault 5. Left Daylight Running Lamp mating connector fault Healing Condition 1. Ignition OFF ON 2. Clear DTC Command Component Details: Daylight Running lamps (DRL) are located at left front side of vehicle. DRL turn ON when Ignition is ON / vehicle is running and both Headlamp and position lamps are OFF. Preliminary Checks: 1. Check Battery Voltage (12.5 V & above) 2. Check ECU pins for oxidation, bending & damage. Trouble Shooting:- 1) Disconnect Vehicle battery. 2) Check continuity between A) left DRL output wire (c4-52) and battery. B) Between BCM pin (c4-52) and BCM battery (c3-2 / c3-1). C) Check for short within BCM. If found, rectify fault. 3) Remove BCM side connector and perform visual check of connectors for pin bent or damage etc. If found faulty, correct fault. 4) Remove DRL side mating connector and perform visual check of connector for pin bent or damaged etc. If found faulty, correct fault. 5) Remove BCM connector. Take out left DRL output wire (c4-52) from connector. Reconnect all connections including battery. Check if DRL is coming ON. If yes, reconnect all connectors firmly.
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