Windshield wiper switch-AARGH!

OOOkay,here's the deal. First off there's a 5 amp(or so I'm told) circuit breaker on here,the turn signal flasher routes thru here,the reverse lightsthe directionals to the front and the light switch and,Oh yeah,the windshield washer motor! Right now,the main thing is that if I plug it in,it will not stop running.Everything else is working fine so I don't want to jinx the car by plugging the switch back in. Any ideas?