Vehicle Platform: OSPREY ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 1.4 Date: 15 May 2018 Author: Body CoC Page: 628 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. B1F07 - 11: Illumination Dimming Level PWM Output - circuit short to ground: ISO Code (DTC Code) B1F07 - 11 Customer Symptom Cockpit illumination permanently off Fault Effects (On Vehicle) Cannot change the cockpit illumination level settings. Lamp Status (If Any) This fault gets logged by BCM when Illumination Dimming Level PWM Output - circuit short to ground Fault Detection Condition This fault will be logged with IGN ON and cockpit illumination output is short to ground. Normal Operating Condition This fault will be logged with IGN ON and position lamp is ON. Probable Trouble Area BCM connector Fault. Cockpit illumination output is Short to Ground. ECU fault. Cockpit LED/ Bulb is faulty/ blow off. Healing Condition Run the input switch test routine and read the DTC. The DTC B1F07-11 shall not be logged. Component Details: BCM changes the cockpit illumination level setting through PWM output and output is STG for DTC B1F07 - 11. Preliminary Checks: 1. Check Battery Voltage (9V-16V) 2. Check ECU pins for oxidation, bending & damage. Trouble Shooting:-
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