Conditions for Setting the DTC
WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
P2719
The transmission control module detects an internal electrical performance malfunction of the clutch pressure control solenoid 4 control circuit when the actual 1-3 clutch pressure does not equal the commanded 1-3 clutch pressure for 5 seconds.
P2720
The transmission control module detects an internal low voltage electrical malfunction of the clutch pressure control solenoid 4 control circuit for 500 milliseconds.
P2721
The transmission control module detects an internal high voltage electrical malfunction of the clutch pressure control solenoid 4 control circuit for 500 milliseconds.