Conditions for Setting the DTC
WARNING: This page is about a different car, the 2016 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
P281D
TCM detects a short to ground in the transmission control solenoid valve 8 control circuit, for 0.3 s.
P281E
TCM detects a short to power in the transmission control solenoid valve 8 control circuit, for 0.3 s.