Conditions for Setting the DTC
WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
P2728
TCM detects an internal electrical performance malfunction of the pressure control solenoid 5 control circuit where the measured pressure control solenoid 5 current does not equal the commanded pressure control solenoid 5 current for 5 s.
P2729
TCM detects a short to ground on the pressure control solenoid 5 control circuit for 1 s.
P2730
TCM detects an open or short to voltage on the pressure control solenoid 5 control circuit for 1 s.