Conditions for Setting the DTC
WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
The ECM detects the difference between the desired camshaft position angle and the actual camshaft position angle is greater than 8 degrees for 20 s.