2012 Jeep Liberty - Horn blares randomly and whenever any buttons are pressed on the key fob, or open or close doors. Followed instructions for reprogramming alarm system. You can lock or unlock doors for about 60 seconds after, but then it goes back to doing the same thing. But if you try to honk the horn, it doesn't work at all. The horn did work before this problem occurred. If I disconnect the battery to reset, will I have to reprogram? Right now I've removed both fuses that go to the horn? Anything else I might try?
It is stuck in anti theft mode you try disconnecting battery and see if it helps. You will have to reprogram as well.
This is helpful. It makes sense. Can I reprogram myself. If so, how do I do that?
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SOURCE: 97' Jeep Grand Cherokee factory alarm going off randomly at night
Replacing the ECU will not require Dealer Intervention Although most folks Like to Buy them From junk yard, I Have Never done That For My Personal Cars or most Customers , as You May Buy the SAME PROBLEM & or More different ones. AND that Solution I would ONLY resort to If,, You have EXHAUSTED "ALL" other Avenues, such as Bad Dome Light Buttons, all it takes is 1 to be Slightly Dirty at the Contacts. I would check them all and there plugs/Connecters etc.I think I'll Do a little more reserch on this
But if I have Helped More or solved this Please Remember to RATE me Thonk you RejakWilson
SOURCE: i have a 2003 jeep
I just got mine out of the shop. They said the problem was the clockspring,it is located under the horn button in the steering wheel.
SOURCE: 2005 Jeep Liberty Horn wont shut off
wiggle the horn on the colum if it stops then the spring on the horn pad has gone bad
SOURCE: My horn used to honk when I locked my 1999 Jeep with the remote
If you have your owner's manual, there is a section that will tell you the exact sequence to press to enable/disable the horn bonk. It has three settings, chirp, honk, and off. The chirp is a really quick chirp of the horn. Honk is a longer honk. Off seems to be what you've set.
I hope this helps.
SOURCE: 02 Jeep Liberty horn going off
Hi, there are two switches involved in actuating the horn: the horn relay which when closed will send current to the horn and the "clockspring" in the steering column that provides the connection to the steering wheel horn button, which when grounded activates the relay's switch. It is more likely that the clockspring has developed a direct short to ground due to a broken internal wire. There is one further wrinkle: the actuation of the relay is intermediated by the body controller which also needs to activate the horn as part of the anti-theft alarm system but if that where the cause it would probably also flash the park, tail, and headlights while the horn was falsely sounding. The most likely cause is the clockspring which you could assess by noticing if you can cause the horn to sound be repeated turning of the steering wheel to prompt the false grounding. Or when it blasts on its own accord turn the wheel slightly to see if that cuts off the horn.
If that doesn't reveal a fault you could try switching the horn relay with a similar relay such as the adjacent headlamp delay relay in the under dash fuse box (they are side by side) which if the horn stopped its issue and instead the headlamps came on for no good reason would tell you that the horn relay is spontaneously closing its switch and therefor needs to be replaced).
If neither approach is revelatory, then the body computer would be suspect. But verification would be in order due to the cost.
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The problem maybe your rear glass hatch, I had problem that alarm goes off as well as interior lights stay on. It's a Jeep problem for years
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