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.
P0961
TCM detects an internal electrical malfunction of the line pressure control solenoid where the measured line pressure control solenoid current does not equal the commanded line pressure control solenoid current for 5 s.
P0962
TCM detects a short to ground on the line pressure control solenoid control circuit for 2 s.
P0963
TCM detects an open or a short to voltage on the line pressure control solenoid control circuit for 5 s.