Apr 30, 2025 · 2025 F-250 Upfitter Switch Wiring Location - Ford Truck Enthusiasts Forums 2023+ Super Duty - 2025 F-250 Upfitter Switch Wiring Location - Does anyone have any …

The Ford Upfitter Switches are optional overhead console mount switches (Option Code 66S) that control underhood mounted relays. (Reference the Upfitter Relay Box section of this BBLB).

Apr 15, 2025 · Hey, I am finishing a AUX fuel tank install and I wanted to use a electric cut off valve to control it (there is a manual one installed for a back up). I went to just tap into the …

May 20, 2024 · I am installing a picker and service body on a 2024 F550 and curious if anyone has the wiring diagram for the rear of these trucks. The wiring is quite different than the '19 the …

Jun 7, 2024 · Howdy All! I have a 2024 F250 and I have a cell phone charger for the wife installed on upfitter switch #3. I get power on the wire with the "AC" on (engine not running), but when I …

Dec 31, 2017 · After looking through this area of the forums, I couldn't find where the wires for the upfitter switches were. In searching Youtube, I found a couple of videos that will help others …

The Ford Upfitter Switches are optional overhead console mount switches (Option Code 66S) that control under hood mounted relays. These relays power six blunt cut wires that are taped on a …

Aug 26, 2010 · Upfitter switch wire location Jump to Latest 26K views 24 replies 11 participants last post by Ed of the North Nov 16, 2011 Powerstrokingmypp Discussion starter

Sep 20, 2016 · The wires for the upfitter switches are taped to the main wiring harness that goes through the first wall on the driver's side. There is no option to use just the switch without using …

2015 F350 Ultra Lariat 6.7L CCLB DRW 3.73 Limited Slip, Green Gem Metallic w/ Caribou accent, Camper Package, Titan 65gal tank, Rapid Heat, Block Heater, Upfitter Switches, Dual …