Conditions for Setting the DTC
WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- When the BCM receives a instrument panel lamps illumination request signal and the instrument panel lamps dimming control circuit is shorted to ground.
- There is a loss of the rear fuse block TBC 4 battery supply voltage to the BCM for more than 1 second.