Circuit/System Testing
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Clear the DTC and operate the vehicle under the conditions for running and setting the DTC.
- Observe the High Side Driver CKT Status parameter. The parameter should display OK.
- If the parameter displays Open, Short to Ground, Short to Voltage, or the DTC resets, replace the control solenoid (w/body and TCM) valve assembly. Refer to Control Module References for replacement, setup, and programming.