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Old 06-22-2015, 10:00 AM   #11
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Join Date: May 2012
Posts: 546
I had the opposite problem; my horn sounding off at odd intervals during the night, disturbing nearby campers. The simple solution, getting rid of the cats who ran across the steering wheel, would have also had the DW get rid of me. The solution was an SPST switch installed in the column just below the steering wheel, wired in series with the horn switch. When I arrive at a campground, the switch is turned off and the horn switch is effectively disconnected.


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Old 06-25-2015, 06:33 PM   #12
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Join Date: Oct 2013
Posts: 42
Georgetown Factory Horn Not working

Originally Posted by Iggy View Post
Now that you tested every part I think you need to check a few things.
1. With ignition on and you press the steering when horn button does the horn relay active. This will pin point if the problem if between the steering wheel and the relay.

2. If you feel the relay pull in and out then you have to work on the power from the relay to the horns.

This is the way I would proceed to see which side of the circuit has failed.

The steering wheel horn button only controls the ground to the horn relay.

Then at the relay contacts close and gives you 12 volt DC positive to the horn wire.
The horn frame mount is the ground.

Good luck.
Thank you for the advice, I wound up taking it to the local Ford dealer.
$550 later, they fixed the two issues causing the problem:
- The horn button(They call it a cover)
- The contact plate in the steering column.

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Old 07-06-2015, 08:43 AM   #13
Join Date: May 2014
Location: Illinois
Posts: 84
Originally Posted by George-B View Post
The factory(Ford) horn on our 2007 Georgetown SE 315 with the F53 chassis stopped working. I replaced the relay under the hood and the 20 AMP fuse. I removed the power plug to the horn and pressed the horn and with a gauge on the cable and there was no power going to the horn. I removed the horn from the steering wheel and connected the two pins in the steering column and still nothing. Is there more than one fuse in the line for the horn?
Where is the 20 amp fuse located?
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Old 07-06-2015, 09:30 AM   #14
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Posts: 42
Originally Posted by bmurph44 View Post
Where is the 20 amp fuse located?
The fuse is under the hood. The fuse box is to the left of the Air Filter Box. Very high above the radiator.
The fuse is a large yellow fuse. The horn relay is also in this fuse box.

This is a link to the fuse boxes and which each fuse does.

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