OK, bought this truck a few months back, and the power mirrors did not work then. After a while, first the passenger and then the driver lock would not work. I pulled the switch out for the locks, cleaned the contacts and reinstalled the switch. The locks work great now...

So, befiore I pull out the switch on the power mirrors, has anyone else had this problem, and am I on the right path? Or is there any other devil in the electrical that can cause this?

I have already gone through the fuses, and know they are all good.

 

There are plenty "devils" that can cause problems in electrical systems. Clean the connections see if that helps, maybe the switch went bad. Could be any number of things in any number of places.

Start with the simplest, and go from there.