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Vehicle Platform: OSPREY
ECU Name: Hella Body Control Module (BCM) DTC
Troubleshooting Data
Version: 1.4
Date: 15 May 2018
Author: Body CoC
Page: 632 of 855
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B1F07 - 15: Illumination Dimming Level PWM Output - circuit short to battery or open
ISO Code (DTC Code)
B1F07 - 15
Customer Symptom
Cockpit illumination permanently ON with100%
illumination or doesn’t illuminate.
Fault Effects (On Vehicle)
Cannot change the cockpit illumination level settings.
Lamp Status (If Any)
Cockpit illumination LEDs may extinguish suddenly and
permanently
Fault Detection Condition
This fault will be logged with IGN ON and position lamp
is ON.
Normal Operating Condition
IGN ON and No DTC logged. Cockpit illumination level
changed from cockpit illumination rotary switch.
Probable Trouble Area
BCM connector Fault.
Cockpit illumination output is Short to battery or
open.
ECU fault.
If all cockpit illumination LED become open
(damaged).
Cockpit LED/ Bulb is faulty/ blow off.
Healing Condition
Run the input switch test routine and read the
DTC. The DTC B1F07-15 shall not be logged.
Component Details:
BCM changes the cockpit illumination level setting through PWM output and output is STB or Open for DTC
B1F07 - 15.
Preliminary Checks:
Check Battery Voltage (9V-16V)
Check ECU pins for oxidation, bending & damage.
Trouble Shooting:-