Action Taken When the DTC Sets

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DTCs P0976 and P0977 are Type A DTCs.
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 the torque converter clutch (TCC).
The TCM commands maximum line pressure.
The TCM freezes transmission adaptive functions.