Upfitter switch wiring locations
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Post Fiend
Joined: Jan 2001
Posts: 5,121
Likes: 1
From: Springfield, VA
Upfitter switch wiring locations
Anyone out there with the upfitter switches know where the wire leads are located to connect to the aux switches? I have 4 loose wires under my hood, looks like they are coming out of the main harness, and since I bought this truck used there was no idea as to what they went to. I even asked the sales guy and he thought they went to something that the previous owner hooked up. The colors on the open ended wires are red, white, blue, and black. If they are the right wires, which color is for which switch?
