Upfitter switches problems questions ??
ok so I was trying to hook up a set of lights and I used a relay to provided power and ground to the lights then I ran the + switch line off the relay to the 30a upfitter switch and then I took the - line off the relay and gave it a ground. I flicked the switch with the truck running and get no light. So I then unhook both line that were running to the upfitter and put them on the battery and the lights work fine. what am I doing wrong is there some wrong with my upfitters.
|