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I have a 06" F250 Super Duty with the upfitter switches. I had my back up lights wired to Nr 3 and my compressor for my air horns wired to Nr 4. My compressor stopped working so I jumpered power from Nr 3 to Nr 4 to see if it was something with the compressor or the relay in the upfitter box. Anyhow, I found a blown fuse for the compressor so it works fine on Nr 4, but every since I jumpered to Nr 3 I have lost power completely to Nr 3, the relay checks out and the fuse is good but still no power. Does anyone else have any idea of what else to check?
I have a 06" F250 Super Duty with the upfitter switches. I had my back up lights wired to Nr 3 and my compressor for my air horns wired to Nr 4. My compressor stopped working so I jumpered power from Nr 3 to Nr 4 to see if it was something with the compressor or the relay in the upfitter box. Anyhow, I found a blown fuse for the compressor so it works fine on Nr 4, but every since I jumpered to Nr 3 I have lost power completely to Nr 3, the relay checks out and the fuse is good but still no power. Does anyone else have any idea of what else to check?
Thanks Ozx3+1 that is exactly how it is layed out, unfortunately I do not see anything that I haven't checked unless something happened to what would appear to be a resistor or a diode in the switch itself, that is the only thing left I guess and of coarse you can't change just one switch, you have to replace all four. Thanks for the info, that is awsome drawing. Thanks again.
cant you just get your test light out?? see if you have power at the switch where power comes to it. is so, do you have power coming out of the switch. sounds pretty easy to me..test lights and multi meters are your best tools in this situation.
The wiring is the same on the 07, however when I tested power to my #3 switch it has none. took the relay box down above the glove box. I'm thinking the relay is bad, all the other switches work. Wonder how much one of the 10 amp relays are, probly not worth warranting it and going through the hassle of making an appointment.
I swapped the relays for Switch nr 4 and nr 3 since they are the same to ensure it is the relay, that was how I know my relays are good. Just a thought before you spend money on a new relay.