Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

P0973

DTC P0973 is a Type A DTC.
The TCM defaults the transmission to 3rd gear if the current gear is 1st, 2nd, or 3rd, or 5th gear if the current gear is 4th, 5th, or 6th gear.
The TCM inhibits torque converter clutch (TCC) engagement.
The TCM commands maximum line pressure.
The TCM freezes transmission adaptive functions.

P0974

DTC P0974 is a Type B DTC.
The TCM inhibits 1st gear.