Trying to wire electric air horns into horn circuit. How to access horns to attach wires

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Pancho258

Well-Known Member
Joined
Apr 13, 2019
Posts
46
Reaction score
17
Location
McALLEN, Texas
2022 Timberline and I’m trying to access the horns so I can attach wires to add electric air horns. Has anyone tried to access the horns through the grill, and if so what requires removal? Or is there the ability to access the horn circuit somewhere else?
 

Dennis48755

Well-Known Member
Joined
Aug 26, 2017
Posts
61
Reaction score
23
Location
Caseville, MI
Maybe you can tie into fuse F15 in the Battery Junction Box (BCMC). This is the fuse box under the hood.

DennisFord 2022 Expedition - Horn Circuit.jpg
 

Tocapet

Full Access Members
Joined
Jul 13, 2014
Posts
202
Reaction score
62
Location
Texas/Colorado
2022 Timberline and I’m trying to access the horns so I can attach wires to add electric air horns. Has anyone tried to access the horns through the grill, and if so what requires removal? Or is there the ability to access the horn circuit somewhere else?
You wanna go honk your way through Reynosa. LOL. Anyway, I put Grover air horns on my '09 Expy. You can remove the plastic top in front of the radiator. Then you unbolt the grill from the top and then unhook it from the bottom. You use a screwdriver to push down on the clips holding it in and push BACK on the grill at the bottom. Work from one end. Push toward the radiator. Once you get it out, then you have all kinds of access to mount your horns. After you take your grill out the first time, it will be easier the next time. Putting it back in is easy too. Just set it into place and then pull it towards you at the bottom to hook it back to the clips. Then bolt it back down at the top. I pointed my horns straight down and the sound goes everywhere. Sounds like an 18-wheeler coming. Saludos.
 

Dennis48755

Well-Known Member
Joined
Aug 26, 2017
Posts
61
Reaction score
23
Location
Caseville, MI
Had I been under the impression it was that easy, I would have attempted removing the grill on my 2018 Expedition to install the remote antenna for my radar detector, and to move it to my 2022 Expedition if I ever get it.

However the Ford service manual's (2018 & 2022) describe the process to be much more complicated then you describe. But I don't know for sure as I gave up on the idea, and just installed the antenna working through the small grill openings.

Apparently there are grill lower mounting screws covered by the bumper cover. So the next step after removing the upper air deflector is to remove the bumper cover, according to the manual, looks quite tedious. Many screws, clips/pins and an electrical harnesse.

Dennis
 

pauldevz

Member
Joined
Jun 18, 2018
Posts
11
Reaction score
6
Location
Dubai
@Pancho258 did you get access to the horn circuit?
The only source I have seen is a video on YouTube removing the top covers and prying the grill to access the actually horn screw and access the socket underneath the vehicle. Removing the grill would need removal of the front bumper.
I have a defective horn and planning to change them to a louder one.
 

Latest posts

Forum statistics

Threads
53,396
Posts
500,656
Members
46,814
Latest member
savbraze
Top