Circuit/System Testing

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet 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. Verify that the DTC does not reset.

If the DTC resets, replace the control solenoid (w/body and TCM) valve assembly.