Horn stopped working randomly

[BluesClues]

Checking to see if this happened to anyone else - I honked at someone a week ago and my horn stopped working (literally honked then no sound then no sound when pressing or locking)

today after the truck sat for 4 days without driving, the horn started working again.

any ideas?

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[Heliian]

Moisture?

Best to check it daily by honking at people.

 

[K6CCC]

Hmmm, I've had my truck 45 days and have yet to have any need to honk the horn. Only time it has sounded is if I hit the lock button too many times.

 

[RocketGhost]

The horn in my last F150 quit working altogether. Dealer replaced the horn itself.

 

[Henry Ford]

Maybe a bad clock spring? Try honking the horn while rotating the steering wheel from lock to lock. Maybe do this in an unpopulated area.

 

[BluesClues]

Maybe a bad clock spring? Try honking the horn while rotating the steering wheel from lock to lock. Maybe do this in an unpopulated area.

oh that's an interesting thought - i'll try this before going in for the appt I scheduled…

 

[trev5150]

Did you pay for the subscription? ?

 

[Milli42]

Did you pay for the subscription? ?

??. It costs $1.99/per horn use.

 

[Henry Ford]

Did you pay for the subscription? ?

I genuinely laughed out loud. Thanks!

 

[BluesClues]

Small update - it stopped working again

 

[Henry Ford]

Small update - it stopped working again

Completely stopped working?

If everything else on your steering wheel is still working it's probably not the clock spring. In the olden days of cars if something was intermittent it meant a bad ground. In these modern times it probably just means a bad part. I'm saying a new horn fixes it.

 

[sstevetx]

Probably not the issue, but check the fusebox in the frunk and make sure the horn fuse is not loose.

When I got my lightning, the fuse was removed by the dealer for some reason and taped to the fuse box. Added it back in and has worked fine since.

 

[BluesClues]

Probably not the issue, but check the fusebox in the frunk and make sure the horn fuse is not loose.

When I got my lightning, the fuse was removed by the dealer for some reason and taped to the fuse box. Added it back in and has worked fine since.

I'll check this out… small update that I think it's likely water related?

With no rain/dry weather for a few days (and warmer), the horn is back to functional (my neighbors loved it)

 

[BluesClues]

They said its an electrical problem; got a Mustang GT convertible loaner!

 

[BluesClues]

After 101 days, this saga has concluded.

15728 verified cust complaint. self test sccm and bcm and both passed. elect diag. found corrosion on conn 2280f with no power out to horn relay. found corrosion on conn 2280a. partially removed under hood wiring harness and replaced both conn 2280f, conn 2280a and replaced bcm. performed pmi to bcm. retest all and verified repair. all repairs per tech assist case #redacted

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