Circuit/System Verification
WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
With the ignition ON, observe the DTCs with the scan tool.
- If other DTCs are set, diagnose them first. Refer to Diagnostic Trouble Code (DTC) List - Vehicle .