Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

DTC P0335 is a Type A DTC.
The CMP actuator if equipped is commanded to the parked position.
The ignition system defaults to a limp home mode. The CMP sensor is used to determine engine position.