2011 F250 horn does not work when the button is pressed. I have checked the fuse, it is fine. Horn still chirps when the doors are locked and also when the panic button is pressed also cruise and all other steering wheel controls are fine. I removed the air bag, all connections are clean and secure as well as the contacts at the corners. I am at a loss........anybody else run into this?

 

The horn has a relay. You can swap another one from a different spot that has the same number to make sure that the relay is bad before buying another one

 

The horn relay is in the BCM and it is NOT serviceable. You might have a bad clock spring or bad SCCM. I suspect a bad clock spring.

The horn switch gives the horn relay a ground, so, I would apply a ground to the points along the steering wheel circuit for the horn to see if it will blow.

 

I didn't see a horn relay listed in the owners manual in either the passenger kick panel or the underhood box only a 20A fuse in the kick panel, where do I find the relay?

 

Rusty, you didn't read what I wrote nor did you check the wiring diagram I posted. The horn relay is located in the BCM and it is NOT serviceable. It is not replaceable. The BCM would have to be replaced to replace the horn relay. I think you have a bad clock spring or SCCM or switch.

 

Larry,
Sorry I was typing when you posted, thanks for the diagram. Since the horn is still functional except for the actual horn button I too think it is isolated to something in the general steering wheel area. My only reservation to thinking it is the clock spring was that everything I read indicated that cruise was typically lost when it fails.

 

You can have bad spots on the clock spring. In my truck, the steering wheel button to change the radio stations would jump around backwards or forwards multiple stations when steering wheel was in certain positions. They changes the clock spring and it solved the problem.

You can try turning the steering wheel with engine running as you press the horn button. If it blows in certain positions, I would think clock spring. If not change, I would look at the horn switch next nd lastly the SCCM.

 

Thats interesting Larry. There have been so many changes to these trucks over the year in electrical systems. Some good some not so much. Sure makes it hard to fix or diagnose simple problems and make for cheap fixes. I found out that I have low voltage to my headlight switch because all the voltage goes to a relay instead of running 12 volts to the switch.

 

Yesterday I finally had time to swap out the clock spring, horn is functional again, problem solved.
Just wanted to update the thread in case somebody else may have the same problem.
Thanks for the help!

 

I just bought the 2010 f250 superduty, where is the location of the clock spring and horn switch? Thanks!

 

Clock spring is behind the airbag inside of the steering wheel.

-- Dave