Looking for Bronco upfitter wires

[dickiebirdventures]

Hi - do you know or know where I can find the locations of the factory upfitter wiring? I found the front grill wire which I used for fog lights and of course the group of wires on the left-side of the firewall, but I'm looking for the wire that runs to the 'right side visor' and can't seem to locate it. I'm trying to run an upfitter switch wire for a dash cam and the 'right side visor' wire, once connected to the correct upfitter switch at the firewall, would work well. Thanks for any help.

Richard

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[Qarlos]

Just in case you haven't seen these images, I have attached them. I haven't looked for Circuit D, myself. My understanding is that you will find it under the roof panel, from the top, not in the interior.

 

[dickiebirdventures]

Thank you!

 

[Qarlos]

I was probably wrong about getting to it from the roof. Here's some info from the bot to find the far end of Circuit D:

1. Start at the passenger A-pillar trim

This is the most common location where installers find the wire termination.

Procedure
1. Move the passenger seat fully rearward.
2. Carefully pull off the A-pillar interior trim panel.
• Pull straight outward.
• The trim uses retention clips.

Important:
• The Bronco has curtain airbags behind this trim.
• Do not route wiring in front of the airbag deployment path.

⸻

2. Look for the capped accessory wire bundle

Behind that trim or slightly above it, you should find:
• A taped or capped wire lead
• Usually labeled or matching Ford’s upfitter color coding
• Often secured to the factory harness running toward the roof

That lead is the far end of Circuit D.

⸻

3. Secondary possible termination spots

Depending on build date and options, installers sometimes find Circuit D slightly shifted toward:

Passenger visor mount area
• Remove visor screws.
• Gently lower the visor bracket.
• Inspect nearby harness routing.

 

[dickiebirdventures]

Great. Thank you.

 

[totaljustice]

There is an set of Light Bar installation instructions around here somewhere from Ford Performance that shows detailed images and instructions for getting at that wire behind the A pillar. Pretty much everything in that area has to come off. And get some nylon pry tools as you'll need them.

 

[dickiebirdventures]

Thanks. I went to the dealer this morning for another reason and one of the guys said to remove the right visor mount and the panel underneath the mount and the wire is right there. Since I'm looking to mount a camera, that's hopefully all I'll need. Thanks again.
Richard

 

[totaljustice]

Here's a link to those instructions just in case you wanted to have a look.

https://performanceparts.ford.com/download/instructionsheets/IS_M-15200K-BRL_BRRL_9-1-22.PDF

 

[Demon4x4]

Seemed easier to me to just run a wire all the way down from the light bar to the engine bay wiring. lol

 

[totaljustice]

Seemed easier to me to just run a wire all the way down from the light bar to the engine bay wiring. lol

It is probably but the procedure in the instructions left the least amount of exposed wire. I mounted my light bar with the wire on the passenger side. I only have about 4 inches showing before it disappears into the roof.

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