Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

P0965

DTC P0965 is a Type C DTC.
The TCM freezes transmission adaptive functions.

P0966

DTC P0966 is a Type A DTC.
The TCM forces HSD1 OFF.
The TCM forces TCC OFF.
The TCM freezes transmission adaptive functions.
The TCM commands maximum line pressure.
The TCM enables Torque management.
The TCM inhibits TAP Up/Down function.
The TCM defaults the transmission to a limited shift pattern utilizing 2 forward gears and reverse gear based on the fault detected.
The TCM inhibits manual shifting of forward gears.

P0967

DTC P0967 is a Type A DTC.
The TCM defaults the transmission to 3rd gear or reverse gear.
The TCM forces TCC OFF.
The TCM freezes transmission adaptive functions.
The TCM commands maximum line pressure.
The TCM enables Torque management.
The TCM inhibits TAP Up/Down function.
The TCM inhibits manual shifting of forward gears.