DTC B1145: Rear fog light: Condition
WARNING: This page is about a different car, the 2001 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.
The control module output is monitored and a DTC generated if there is a:
- Open/short circuit to B+.
- Short to ground.
DTCs are not generated if the voltage is below 11V or during diagnostic communication.