If you have power to the clutch when all is on, then the other switching should be good.
I have used WD40 to clean the clutch magnetic contacts and gotten them to work. I just sprayed it while running. Be careful of the spray. If that does not work, then it sounds like it is time for a clutch.
Panama City, Fl.
I wake up in the morning with nothing to do and by supper time, I have half of it done.
2000 Lightning, s/c, tuned, Basanni, built tranny
Sold them all.....
Previous Mustangs:4 - '66 Coupes(silver/blue/grey/red) '87 GT HO, '00/'02/'07 GT Vert(red)(grey)(black), '68 Coupe, '11 GT/CS, 08 GT Vert