Conditions for Setting the DTC
WARNING: This page is about a different car, the 2002 GMC Safari and 2002 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
- All courtesy lamps OFF.
- The courtesy lamp relay coil control circuit is open or shorted to ground.
- All the above conditions must be met for 0.5 seconds.