Test Description
WARNING: This page is about a different car, the 2003 Pontiac Montana, 2003 Oldsmobile Silhouette, and 2003 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.
The numbers below refer to the step numbers on the diagnostic table.
- Always perform the lighting diagnostic system check before attempting to diagnose DTC 3.
- Tests for a short to battery positive voltage in the courtesy lamps low control circuit.
- If all the courtesy lamps illuminate when the courtesy lamps supply voltage is connected to battery positive voltage, the courtesy lamps low control circuit has a short to ground.