Front Passenger Seat Electrical Problem

The fuse/breaker that covers the front passenger seat kept getting so hot you couldn't touch it before the power controls on the seat stopped working. The GM tech has replaced the fuse 2 times. Same problem repeats. I have removed the switch assembly. Has anyone had this problem? Where can I get a good wiring diagram for this seat assembly?
Thanks

The motors under the seat assembly could just be wearing out, requiring more amperage to move them and you in the seat. If everything works, and everything is factory, then that would be my only guess. More amperage means, more heat through that circuit. -Chris