Nothing.....and the fuse is OK?
It used to stop working every month or 2 for about 20 seconds. I would just turn it off and then it would work again about 20 seconds later.
So is it the switch, fan motor, speed resistor ?

95 T100


89 ext cab 22re 4x4 267K miles (for sale)
94 Land Cruiser Factory lockers
95 T100 4x4 ext cab