2022 F250 Upfitter Switches
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Trailering
Joined: Nov 2013
Posts: 20
Likes: 1
2022 F250 Upfitter Switches
Can someone tell me the correct procedure for installing auxiliary lights to the up-fitter switches? I know where the wire bundle is located in the engine bay. Should I ground the lights to the battery since the truck is aluminum? Should I ground each light individually? Is there a particular gauge wire I should use from the lights to the up-fitter switch wires? Thank you for your help!
Lead Driver
Joined: May 2021
Posts: 5,766
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From: Uh oh, CA
I added a pair of LED lights to the rear bumper. I pigtailed the lights and ran a single wire to the number 3 up fitter wire under the hood. I pigtailed the grounds from both lights, and then grounded them to a nearby ground at the back. As for the size wire, just search for a wire size chart for 12V and input the numbers for the lights you choose.
Lead Driver
Joined: Nov 2005
Posts: 8,440
Likes: 4,945
Can someone tell me the correct procedure for installing auxiliary lights to the up-fitter switches? I know where the wire bundle is located in the engine bay. Should I ground the lights to the battery since the truck is aluminum? Should I ground each light individually? Is there a particular gauge wire I should use from the lights to the up-fitter switch wires? Thank you for your help!
They are already fused and relayed, nothing else needed.
Tuned
Joined: Jun 2017
Posts: 361
Likes: 20
From: Clayton, Georgia
Wish some of the upfitter wires terminated under the dash, instead of all under the fuse/relay box beside the battery. Yesterday I had the bright idea to wire a CB radio to one of the switches. Had to run the power lead across the engine bay, then punch a hole in the large cable grommet above the brake pedal to run my power and antenna lead into the cab. My back is still in pain from the contortions I had to go through to feed the wires through the firewall. Ford allegedly does supply some pass through wires, but I count not find them on either side of the firewall.
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Trailering
Joined: Nov 2013
Posts: 20
Likes: 1
I installed the lights, grounded them to the frame with eye ring connector, connected to blue/green wire for aux 3 switch. Turned the truck on, hit the switch--nothing.
did I do something wrong? I've wired my own lights before on past trucks with my own relays and wiring--worked just fine. Why is this not working?
did I do something wrong? I've wired my own lights before on past trucks with my own relays and wiring--worked just fine. Why is this not working?
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Lead Driver
Joined: Nov 2005
Posts: 8,440
Likes: 4,945
I installed the lights, grounded them to the frame with eye ring connector, connected to blue/green wire for aux 3 switch. Turned the truck on, hit the switch--nothing.
did I do something wrong? I've wired my own lights before on past trucks with my own relays and wiring--worked just fine. Why is this not working?
did I do something wrong? I've wired my own lights before on past trucks with my own relays and wiring--worked just fine. Why is this not working?
Did you try the other switches in case you just hooked up the wrong one?
Have you tested the lights by directly hooking them to a battery to make sure they work at all?
I have my aux tank valve hooked to the #3 switch, but don't recall which wire color it was.
You did get the wire from the bundle under the upfitter fuse/relay box on the passenger side of the engine bay?
This is a diesel?
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Lead Driver
Joined: May 2021
Posts: 5,766
Likes: 3,415
From: Uh oh, CA
Wish some of the upfitter wires terminated under the dash, instead of all under the fuse/relay box beside the battery. Yesterday I had the bright idea to wire a CB radio to one of the switches. Had to run the power lead across the engine bay, then punch a hole in the large cable grommet above the brake pedal to run my power and antenna lead into the cab. My back is still in pain from the contortions I had to go through to feed the wires through the firewall. Ford allegedly does supply some pass through wires, but I count not find them on either side of the firewall.
Lead Driver
Joined: Nov 2005
Posts: 8,440
Likes: 4,945
So much FUN routing the wire up to the front to get it hooked up while keeping it safe.
4wd Low
Joined: Nov 2021
Posts: 10
Likes: 7
Wish some of the upfitter wires terminated under the dash, instead of all under the fuse/relay box beside the battery. Yesterday I had the bright idea to wire a CB radio to one of the switches. Had to run the power lead across the engine bay, then punch a hole in the large cable grommet above the brake pedal to run my power and antenna lead into the cab. My back is still in pain from the contortions I had to go through to feed the wires through the firewall. Ford allegedly does supply some pass through wires, but I count not find them on either side of the firewall.
Laughing Gas
Joined: Jan 2022
Posts: 1,101
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Don't use Chinese wire. Ran into all kind of problems using Chinese wire on my motorcycle.
Lead Driver
Joined: Dec 2020
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