Random Blowing Horn

[Mike in MI]

I have a 2022 Glad and I did not see this problem in any of the threads. The horn just blows 2 or 3 times randomly. It does it driving or parked and doors locked or unlocked. Any thoughts would be appreciated.

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[Texbaz]

Have you checked the wires and plunger style switch under the hood?

The horn relay is in the fuse box also.
Good places to start.

 

[Mike in MI]

Thanks...I did with no luck so I first pulled the horn fuse, N91, and it still would blow so I disconnected the battery came back in until I could call the dealer tomorrow and the horn blew again...with the battery disconnected. I don't think there is a battery backup. It seems really weird.

 

[Trollboogie]

The AUX battery is still giving it power.

 

[Texbaz]

Agreed the aux battery could very well be powering that circuit also but, if the fuse for the horn is pulled how is the power getting to the horn. Strange.

I think I'm going to pull that horn fuse tomorrow and then do the Ole get out of my vehicle while running close the door and see if the horn honks. Just curious.

Oh yeah good luck with the dealer hope it's something quick, easy, and under warranty.

 

[MT1]

https://www.jlwranglerforums.com/JL-Wiring-Diagrams/HORNS.pdf

Any other gremlins? Does the horn work if you press the horn ring/switch manually, when F91 is pulled?

 

[Texbaz]

Maybe a third party horn, from a theft alarm.
You sure the two horns in the front are going off?

 

[StanH]

If you try and lock the key in the Jeep it will honk 3 times. Is your spare key in there ?

 

[smlobx]

My money is on a trunk monkey!

 

[Hootbro]

If it is blowing with the horn F91 fuse pulled, the power wire is chaffing against another hot 12 Vdc source like another wire.

 

[Lost1wing]

Thanks...I did with no luck so I first pulled the horn fuse, N91, and it still would blow so I disconnected the battery came back in until I could call the dealer tomorrow and the horn blew again...with the battery disconnected. I don't think there is a battery backup. It seems really weird.

You need to pull the fender ground off of the fender or from the top plate of the IBS at the main negative. If you just removed the main negative from the battery post, you more than likely are going to kill the Aux battery if left off. You must remove the fender ground to remove power. See owners manual.

You may also need to do an IBS reset after charging both batteries.

You still need to look for a shorted wire going to your horn.
I'm afraid that you may have induced more problems by improperly disconnecting the main battery. Let's hope not.

 

[StanH]

If it is blowing with the horn F91 fuse pulled, the power wire is chaffing against another hot 12 Vdc source like another wire.

Or someone has his spare key and is sitting in their house hitting the panic button on and off.

 

[StanH]

When the horn honks are the door locks actuation happening also ?

 

[Badunit]

If you try to honk the horn does it honk?
Are you sure you pulled F91 and not some other fuse?
Is there something else tapped into the horn power wires?
Are the 2-3 honks short controlled honks evenly spaced in time (like when you exit the vehicle with it running, close the door, and start to walk away) or random honks of various durations and various time between?
Is it actually "2 or 3" or is it always 2 or always 3?

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