Conditions for Setting the DTC
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- The Vehicle Communication Interface Module detects an open in the Cellular Microphone Low Reference circuit or a short to voltage in the Cellular Microphone Signal circuit.
- The above conditions are present for greater than 10 seconds.