A couple of years ago my step stopped working in and out.
02 Diplomat, so figure maybe the motor was shot.
On that model of step the new motors require a new controller.
so I take a small hammer and tap on the motor, voila the motor worked a couple of cycles and quit again. So I’m thinking theses motors open and close and stop in the same position every time.
I take the motor off and take it to a shop that works on motors, had them clean up the commutator and put new brushes in it, reinstalled and it is working fine.
$50 well spent.