Quote:
Originally Posted by Shaggy
I found the 4 pass through wires under the hood and that's it. Can't locate anything under the dash. I do have the upfitter switches.
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If the switches were factory installed, then the pass throughs are where they end. They actually come from the relays in the battery junction box. If you can't get them to go live, then chances are either the relays or fuses are missing or both. all the interior switches do is trigger the relays and you have the stub ends under the hood.
Check page 7, it shows the fuse numbers and relay numbers. Also check the Junction box in the cab to make sure it's fuse is in there, that is shown on page 7 as well.
https://www.fleet.ford.com/truckbbas...iring_v1-0.pdf
Good luck!