Ok, power mirror switch. Right on the 4 way didnt' work (in on drivers, out direction on passengers mirror). I think teh door panel got wet one day when it rained and i had the door open for a while..... Replaced switch, same problem. Go to start jumping terminals to see if the harness just isn't making good connections....and something that sounded like a fuse in the dash popped. All the fuses are fine. What circuit is the power mirrors fused on? 94 full size blazer. Thanks guys!