Action Taken When the DTC Sets: P0843

WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

DTC P0843 is a Type B DTC.
The TCM forces the TCC OFF.
The TCM inhibits TCC engagement.
The TCM freezes transmission adaptive functions.
The TCM inhibits 4th gear if the transmission is in Hot Mode.