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-   -   Horn suddenly comes on (http://www.wranglerforum.com/f274/horn-suddenly-comes-on-214952.html)

Bourget117 01-26-2013 02:15 PM

Horn suddenly comes on
 
For the first time my 2012 sahara jku with 6,200 miles started having some strange electrical problem. Went to the market today and as I got out of the jeep the horn came on and I couldn't shut it off. Not the alarm but the constant horn sound that sounded like I had my hand pressed down on the button. It finally stopped after a minute or two. Then I hit the remote and walked away and it came back on again for another minute or two. I manually locked the door and left. When I returned I hit the unlock bottom on the remote and same thing again. When I got home I decided to disconnect the batery(after reading a similar story n this forum) to do a reset. The horn sounded as soon as I opened the hood. I disconnected the batery and same thing. Horn sounded when I reconnected. I didn't need to use the vehicle anymore today so I left it the batery disconnected until tomorrow when I'll go out and unplug the horn for now.
So anyone have an idea what's going on before I call the dealer to make a appointment? I have searched the forum first and found similar but not the same exact problem as mine. I definitely didn't leave the top down in the rain as others have said can causes this problem. It's been 0-12 degrees here this week
Ad no leaks anywhere that I'm aware of. The only thing I have changed n the jeep in the last 7 days has been upgrading the interior light to LEDs. I got the Putco front and cargo area lights. Some have complained about lights staying on cause of the CANBUS system but only on 2013s I think. I have had zero problems since plugging in these lights. So I don't they are the cause. I can get the horn to stop if I bang on the steering wheel button which would make one think its a stuck switch BUT the horn comes on from opening the hood and hitting the remote lock/unlock too which makes me think its a lot more complicated problem like maybe having something to do with the alarm as well.

kbwwolf 01-26-2013 02:23 PM

You're not alone:

horn keeps randomly going off
Broken horn/alarm?
My Jeep has a Ghost!!!

Could be any number of things; I'd try unhooking the battery first, then hooking it back up. Might also be your TIPM, horn switch, clockspring...

A lot of the threads below deal with water getting into the horn, causing it to blow randomly, though it sounds like you've rule that out...

Horn randomly blows...
horn honks when wet
Horn Honking By Itself - JeepForum.com
stupid horn!!!

Bourget117 01-26-2013 02:43 PM

Quote:

Originally Posted by kbwwolf (Post 3281531)
You're not alone:

horn keeps randomly going off
Broken horn/alarm?
My Jeep has a Ghost!!!

Could be any number of things; I'd try unhooking the battery first, then hooking it back up. Might also be your TIPM, horn switch, clockspring...

A lot of the threads below deal with water getting into the horn, causing it to blow randomly, though it sounds like you've rule that out...

Horn randomly blows...
horn honks when wet
Horn Honking By Itself - JeepForum.com
stupid horn!!!

These are most of the posts I found myself. Some are similar to my problem. Disconnecting the battery and reconnecting doesn't make a difference. Horn comes back on right away. Now when you said maybe horn got wet do you mean the interior horn switch or the horn itself under the hood. I did get the jeep washed 6 days ago but I always get it washed often since I bought it last June and never had a problem or a leak that I'm aware of.

kbwwolf 01-26-2013 03:15 PM

Quote:

Originally Posted by Bourget117 (Post 3281602)
These are most of the posts I found myself. Some are similar to my problem. Disconnecting the battery and reconnecting doesn't make a difference. Horn comes back on right away. Now when you said maybe horn got wet do you mean the interior horn switch or the horn itself under the hood. I did get the jeep washed 6 days ago but I always get it washed often since I bought it last June and never had a problem or a leak that I'm aware of.

Most of the threads I've seen where the issue was caused by water seem to have been the result of wheeling, or cleaning the engine. Water in the actual horn.

I think one of em turned out to be a clockspring issue...but you'd probably have to take it to the dealer to get that verified/fixed.

kbwwolf 01-26-2013 03:18 PM

Posts #8 and #10 in this thread deal with horn issues resolved by the clockspring, and in one instance the stereo volume knob. HUH? Anyway, that's what the poster said...

Horn blows when door opens

Also, when I said unhook the battery and hook it back up, are you leaving it unhooked for a little while? Should be at least 10 mins...

Also, maybe pull the fuse for the horn, till you can figure something out?

Bourget117 01-26-2013 05:34 PM

Quote:

Originally Posted by kbwwolf (Post 3281728)
Posts #8 and #10 in this thread deal with horn issues resolved by the clockspring, and in one instance the stereo volume knob. HUH? Anyway, that's what the poster said...

Horn blows when door opens

Also, when I said unhook the battery and hook it back up, are you leaving it unhooked for a little while? Should be at least 10 mins...

Also, maybe pull the fuse for the horn, till you can figure something out?

Just wondering what is a clockspring and where is it located?
And I didn't leave it disconnected for more than a second so tomorrow I will try ten minutes like you mentioned.

kbwwolf 01-27-2013 03:39 AM

Quote:

Originally Posted by Bourget117 (Post 3282135)
Just wondering what is a clockspring and where is it located?
And I didn't leave it disconnected for more than a second so tomorrow I will try ten minutes like you mentioned.

The clockspring is in your steering wheel, and handles the electrical connections btw steering wheel and steering column. A bad clockspring can cause all sorts of issues, usually with ESC warning lights, airbag lights, etc. I believe Chrysler extended the warranty on some MYs...

JoabsJks 01-27-2013 04:02 AM

Re: Horn suddenly comes on
 
I say is the clockspring, make an Appointment, the dealer should warranty it, all my buttons went dead on my steering wheel and that was the issue, that it's a 300+instal part, 11JKS, 25000 miles

Bourget117 01-27-2013 05:05 AM

Quote:

Originally Posted by kbwwolf (Post 3283780)
The clockspring is in your steering wheel, and handles the electrical connections btw steering wheel and steering column. A bad clockspring can cause all sorts of issues, usually with ESC warning lights, airbag lights, etc. I believe Chrysler extended the warranty on some MYs...

Quote:

Originally Posted by JoabsJks (Post 3283796)
I say is the clockspring, make an Appointment, the dealer should warranty it, all my buttons went dead on my steering wheel and that was the issue, that it's a 300+instal part, 11JKS, 25000 miles

Ok so I googled the clockspring and now I know where it's located and what it does. I'm a little surprised it could be worn out already on a 2012 with 6000 miles but maybe just defective. Anything is possible I guess my last vehicle I bought new in 2003 was a Infiniti FX45, one of the first to hit the market, needed to have the entire rear hatch replaced after three days of owning it so anything is possible.
So here where I'm confused. If clockspring could be bad then horn stays on by itself as if I'm holding down the button cause of bad contacts maybe. But then why when I hit remote unlock open or open the hood does the horn instantly blow? I'm hoping its not a more complicated electrical issue.

Lusus_Naturae 01-27-2013 04:29 PM

For someone it was the clockspring, cruise control switch and radio knob - the only reason I can think of for the radio knob is they meant the radio control knob in the steering wheel itself, maybe its routed by the clockspring.

MichiganJeepster 02-01-2013 08:06 PM

Cruise control switch replaced twice for same problem.

Bourget117 02-03-2013 07:37 PM

Quote:

Originally Posted by Bourget117

Ok so I googled the clockspring and now I know where it's located and what it does. I'm a little surprised it could be worn out already on a 2012 with 6000 miles but maybe just defective. Anything is possible I guess my last vehicle I bought new in 2003 was a Infiniti FX45, one of the first to hit the market, needed to have the entire rear hatch replaced after three days of owning it so anything is possible.
So here where I'm confused. If clockspring could be bad then horn stays on by itself as if I'm holding down the button cause of bad contacts maybe. But then why when I hit remote unlock open or open the hood does the horn instantly blow? I'm hoping its not a more complicated electrical issue.

Quote:

Originally Posted by MichiganJeepster
Cruise control switch replaced twice for same problem.

Ok so got the problem fixed this weekend and it was the cruise control buttons affecting the horn. They explained it to me that its all tied in together.

yjswampthing 03-13-2013 01:31 PM

I picked up a JKU 2012 Model yesterday from the dealer (Ford Dealer). 8k miles on it. Went to lunch today and was taking the front panels off the hard top when the horn comes on and stays on. I thought I had tripped some sort of security thing. Noticed that the actual horn button does not function driving down the road or in park. Did it again before I got it started and left. Just like you're describing... like a Phantom laying on the horn. Did it again in the Target parking lot so I drove it to the dealer (luckily right across the street from work) he's taking it to the jeep dealer now hoping they figure it out quick.



Question is, if I tell them I want to take it today is there any danger in doing that? Just pulling the fuses till I can set an appt at jeep for them to get in the wheel and fix it? I don't want it to be some sort of security feature that's gonna electrically lock my jeep down where I get stuck somewhere.

I have problems with patience and it's 75 and sunny in Dallas :D


Otherwise, good to be back in the jeep world! This is #3 for me (been a hard 2 years since Rubi has been gone :-/ )


Thanks guys

kbwwolf 03-13-2013 01:37 PM

Quote:

Originally Posted by yjswampthing (Post 3498706)
I picked up a JKU 2012 Model yesterday from the dealer (Ford Dealer). 8k miles on it. Went to lunch today and was taking the front panels off the hard top when the horn comes on and stays on. I thought I had tripped some sort of security thing. Noticed that the actual horn button does not function driving down the road or in park. Did it again before I got it started and left. Just like you're describing... like a Phantom laying on the horn. Did it again in the Target parking lot so I drove it to the dealer (luckily right across the street from work) he's taking it to the jeep dealer now hoping they figure it out quick.



Question is, if I tell them I want to take it today is there any danger in doing that? Just pulling the fuses till I can set an appt at jeep for them to get in the wheel and fix it? I don't want it to be some sort of security feature that's gonna electrically lock my jeep down where I get stuck somewhere.

I have problems with patience and it's 75 and sunny in Dallas :D


Otherwise, good to be back in the jeep world! This is #3 for me (been a hard 2 years since Rubi has been gone :-/ )


Thanks guys

Most of the peeps who end up having the horn problem end up pulling their fuse. It's either that, or break out the shotgun...

Bourget117 03-13-2013 02:42 PM

Quote:

Originally Posted by yjswampthing (Post 3498706)
I picked up a JKU 2012 Model yesterday from the dealer (Ford Dealer). 8k miles on it. Went to lunch today and was taking the front panels off the hard top when the horn comes on and stays on. I thought I had tripped some sort of security thing. Noticed that the actual horn button does not function driving down the road or in park. Did it again before I got it started and left. Just like you're describing... like a Phantom laying on the horn. Did it again in the Target parking lot so I drove it to the dealer (luckily right across the street from work) he's taking it to the jeep dealer now hoping they figure it out quick.



Question is, if I tell them I want to take it today is there any danger in doing that? Just pulling the fuses till I can set an appt at jeep for them to get in the wheel and fix it? I don't want it to be some sort of security feature that's gonna electrically lock my jeep down where I get stuck somewhere.

I have problems with patience and it's 75 and sunny in Dallas :D


Otherwise, good to be back in the jeep world! This is #3 for me (been a hard 2 years since Rubi has been gone :-/ )


Thanks guys

Quote:

Originally Posted by kbwwolf (Post 3498724)
Most of the peeps who end up having the horn problem end up pulling their fuse. It's either that, or break out the shotgun...

It's not just pulling the fuse to solve an annoying problem. I thought it would but I was wrong when every time the vehicle shorted out which by he way is the cause, it runs down the batery til it's completely dead if you don't start the jeep at least once a day. I'm still having problems after three trips to dealer. It's the cruise control switch which is wired to horn. All part of the inline CANBUS system. Chrysler knows about this and they don't know what to do about it. Supposedly they are trying to design a new switch with a built in ground but that doesn't do me or anyone else any good in the mean time.

maleman876 03-13-2013 02:51 PM

had to get my cruise control buttons replaced last week, it was cauing all the buttons on my wheel and the horn to not function at all. its all tied in together through the clockspring so it could be anything in there

yjswampthing 03-14-2013 09:00 AM

Jeep Dealer is saying it's the Horn switch on mine. Should have it fixed today. Fingers crossed this is the only time I have to deal with the issue.

yjswampthing 03-14-2013 11:17 AM

Quote:

Originally Posted by Bourget117 (Post 3498930)
It's not just pulling the fuse to solve an annoying problem. I thought it would but I was wrong when every time the vehicle shorted out which by he way is the cause, it runs down the batery til it's completely dead if you don't start the jeep at least once a day. I'm still having problems after three trips to dealer. It's the cruise control switch which is wired to horn. All part of the inline CANBUS system. Chrysler knows about this and they don't know what to do about it. Supposedly they are trying to design a new switch with a built in ground but that doesn't do me or anyone else any good in the mean time.

I guess this definitely concerns me as I still have opportunity to back out of the sale. How are they not able to isolate and replace a defective part in your steering wheel? If not all JKUs do this than certainly there must be a set up that does work without problems. I just don't want to be in and out of the dealer wasting my time with it.

michaeltoc 04-02-2013 08:53 AM

I have the same problem. Dealer replaced the cruise switch, horn switch, and clockspring. Escalated the case to Chrysler. They acknowledged a problem with the cruise switch and are working on a modification.

BManz 04-02-2013 09:27 AM

Had the same "horn comes on and stays on" problem. The dealer replaced the cruise control button pad assembly on the steering wheel (there is a TSB - don't know the #) and problem was solved. A week later and the same thing happened.

Dealer tech worked with corporate engineering and found out there are a bunch of these cruise button assemblies that are bad and made it into production as well as the service parts supply chain.

They replaced the cruise button assly (again) and so far so good.

Bourget117 04-03-2013 08:27 AM

Quote:

Originally Posted by BManz (Post 3583892)
Had the same "horn comes on and stays on" problem. The dealer replaced the cruise control button pad assembly on the steering wheel (there is a TSB - don't know the #) and problem was solved. A week later and the same thing happened.

Dealer tech worked with corporate engineering and found out there are a bunch of these cruise button assemblies that are bad and made it into production as well as the service parts supply chain.

They replaced the cruise button assly (again) and so far so good.

Well since I started this post I've had mine replaced 3 times. Engineers, techs, service managers all involved and still i was finally told the problem is not fixed. It's not a bad batch of cruise switched its a bad design. The new design has a built in capacitor. Chrysler has known about this for awhile now. They sent me a revised design switch to try and it failed two days later. Last week I wash told it will be a few months possibly before a new design is available. Then they will call me to install it. Until then I was told my only choice was to come in and get cruise switch replaced every time it fails.

maleman876 04-06-2013 08:59 AM

Mine was fixed this morning. Cruise switch, that's two replacements with less than 5K miles on it.

scottmphoto 04-06-2013 12:19 PM

Ahhhhh Chrysler.

BManz 04-08-2013 04:42 PM

Quote:

Originally Posted by Bourget117 (Post 3588423)
Well since I started this post I've had mine replaced 3 times. Engineers, techs, service managers all involved and still i was finally told the problem is not fixed. It's not a bad batch of cruise switched its a bad design. The new design has a built in capacitor.

So if what you say is true, then ALL 2012-2013 Chrysler/Jeep vehicles with cruise are experiencing the horn staying on because the cruise switch is a cross-platform part? Haven't seen that, but I did see the statement my dealer had from the Star case that looked like a supplier issue with this part, i.e. a bad batch of parts. If the bad run made it into production, part of that bad run also made it into the service parts chain where they sit waiting -- for a long time.

tluke 04-08-2013 08:32 PM

I have had mine in multiple times for the same problem. It is currently at the dealership for another attempt at fixing the problem permanently. The dealership said they consulted with the Regional Service Rep who stated that it was a problem with the wiring harness that shorted by static electricity. They are confident this will solve the problem. The last fix lasted several months so I won't know for sure if this finally fixed it for some time. During this most recent episode the horn blared constantly but the Cruise an EVIC switches continued to function. I guess it is somewhat comforting to know that I am NOT the only one with this problem.

Bourget117 04-09-2013 08:24 AM

Quote:

Originally Posted by BManz (Post 3610470)
So if what you say is true, then ALL 2012-2013 Chrysler/Jeep vehicles with cruise are experiencing the horn staying on because the cruise switch is a cross-platform part? Haven't seen that, but I did see the statement my dealer had from the Star case that looked like a supplier issue with this part, i.e. a bad batch of parts. If the bad run made it into production, part of that bad run also made it into the service parts chain where they sit waiting -- for a long time.

I got my info from the service manager, star rep and regional tech. Someone is giving out false info

tluke 04-09-2013 11:44 AM

I got it back from the dealership this morning and they are quite confident that they have found the problem. I was told that the problem had been diagnosed and it centers around the wiring harness. They needed to add a wire for ground. In addition, they replaced the cruise control switch. It shorted in the process.

live_slow 04-09-2013 12:30 PM

tag. i'm sorry but this thread is unintentionally funny.

sounds like we need a priest up in here.

tluke 04-09-2013 01:14 PM

https://www.facebook.com/media/set/?...1005261&type=3

BManz 04-09-2013 04:43 PM

Quote:

Originally Posted by tluke (Post 3614044)
I got it back from the dealership this morning and they are quite confident that they have found the problem. I was told that the problem had been diagnosed and it centers around the wiring harness. They needed to add a wire for ground. In addition, they replaced the cruise control switch. It shorted in the process.

I suspect a short or ground issue is the real root cause too. But -- big but -- there may be multiple reasons causing some horns to come on steady. Wonder if your ground wire was broken, missing or just loose? May or may not be related to the supposedly bad switch part. I get lots of static shock when I get out now that I think of it but that happens to me in all vehicles with cloth seats. Thanks for the info.


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