Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2008 Pontiac G5 and 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

P0973

DTC P0973 is a Type B DTC.
The TCM inhibits 3-2 downshifts when the vehicle speed is greater than 52 km/h (32 mph).
The TCM commands maximum line pressure.
The TCM freezes transmission adaptive functions.

P0974

DTC P0974 is a Type B DTC.
The TCM commands maximum line pressure.
The TCM freezes transmission adaptive functions.