Rear Fog Light: Diagnosis
TWICE detects the imbalance and puts a fault message onto the bus. SID generates an acoustic signal and puts FOG LIGHT FAILURE onto the display.
Diagnostic trouble code B1145 is generated in the event of an open circuit or a short circuit on pin 25 to ground or a short circuit to B+.
DTCs are not generated if the voltage is below 11 V or during diagnostic communication.
IMPORTANT:
When changing a bulb, use a replacement bulb of the correct wattage, since there could otherwise be damage to components.