i accidently did that two months ago on my ECU kill switch. disconnect the wires from the switch, retrace your wires (to ensure good connections). make sure that u have a proper switch compared to your ampreage. you can burn out those cheap ass walmart switches like that if it doesn't match what u need. once you know the wires aren't the problem, make sure you used the correct prongs on the switch. is it two or three prong? if it's three, you want to run ont wire through the ground prong, and one through the accessory (i'm pretty sure). juss play with it till it works.