Circuit/System Verification
WARNING: This page is about a different car, the 2007 Pontiac Montana SV6, 2007 Chevrolet Uplander, and 2007 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
- Verify that DTC P0573 is not set in the ECM.
- If that DTC is set as current or history, go to Diagnostic Trouble Code (DTC) List - Vehicle .
- Rotate the steering wheel to both steering stops while activating each cruise control switch separately. With a scan tool, observe all cruise control switch parameters, including the Cruise Cancel Switch, in the ECM. Ensure that each cruise control switch activated and that each displayed switch position parameters do not match as the steering wheel is turned.
- If the parameters match with each depressed switch accordingly, go to Diagnostic Aids.