Conditions for Setting the DTC: P2719
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
The TCM detects an internal electrical performance malfunction of the clutch PC solenoid 4 control circuit when the actual 1-3 reverse clutch pressure does not equal the commanded 1-3 reverse clutch pressure for 5 seconds.