My horn all of the sudden comes on and stays on and i have to disconnect the battery to get it too stop. I need to know which fuse to pull out of the fuse box since mine doesnt have the cover that has all of the fuses listed. Please let me know Thanks [email protected]

Horn relay is stuck. Pull the relay out of the under hood fuse box and replace it

Check your fuses. It varies from car to car but you may have a fuse dedicated only to the horn unit. In that case you can just pull the fuse without affecting anything else..

Other than that you will need to pull the wiring connectors off the horn unit and tape them up to keep any moisture and dirt out. Hopefully that will not trigger any issue with the security system.

Your owners manual will show you exactly where it is...However it is easy to disconnect the horn...You desperately need a horn for safety reasons to avoid a crash...Especially if your state has a safety inspection requirement...Your fuse panel should also have the fuses numbered and a sticker inside the fuse box cover stating which fuse goes to horn....Also you can wear safety glasses and disconnect the battery to avoid air bag explosion..Remove steering wheel center cover where the horn is pressed...,You will see a small wire attached to the cover and to the prong inside steering wheel...It could be loose or disconnected.....If not just disconnect the wire and black tape the terminal end ..Then the horn is disconnected...

sounds like there's a short in your wiring in the steering column, A lot of times with a tilt wheel a wire get loose or gets a short in it. the steering wheel may have to come off to fix the problem but make sure to disconnect the airbag first, I'm not sure what vehicle you have so I don't know where to tell you to look for the connection, may be best to take to a dealership if possible. Hope this helps.

malfunction with the horn switch... disconnect the wire harness from the horn itself. then take remove and replace the horn switch w/ a new one.

did u recently put a new stereo system inmost recent cars alot of there securety systems run through it an it effects the lights the horn and if its making the system short out out the battery also.

Hi,
If the horn only honked once it may be a symptom of your car alarm being set off after power has been re-applied. If the horn stays on after you reconnect the battery you have either a stuck horn button on your steering wheel or a stuck horn relay. Or it could be the alarm sounding the horn but that usually that occurs in a series of horn blasts (rather than continuous) and the car indicators usually flash in sync with the alarm sounding.
If the horn is stuck on in a continuous blast ie not sounding on and then off and then on etc etc, disconnect one the battery cables then pull the fuse that feeds the horn or pull off one of the removable spade electrical connectors from one of the 2 terminals on the horn itself. Usually the fuse box is either under the dashboard on the drivers side or could be under the hood. Consult your user manual for your car for fuse and horn locations.
If the horn is stuck you need to visit a qualified auto electrician, or perhaps you have a friend who knows his way around auto electrics?
Cheers,
Steve (Melbourne, Australia)

Hello.
Changing out the old battery, you may somehow shorted something out in the car. You can check this by seeing if you have any power going to the lights on the car and what ever else that uses the power when you turn on the key. Newer cars like yours usually cant short out, but if the lights and other stuff dont work when your check them, disconnect the battery and look for the fuse panel. Check ALL your fuses and make sure none of them have been blown. You can check that by seeing if the filament in them looks to be burnt or broken as if it popped.
You can also check and make sure that the negative battery terminal is on tight enough. Sometimes a bad ground can mess everything up. As your doing this, before your reconnect your battery, go under the hood of your car and disconnect the horn. This will allow you to work without the horn blaring. To disconnect the horn, its just a wire with an end that simply slides over a metal tab, just give it a pull and it should come right off. You may have two horns so check both sides of the radiator. Hope this helps!
-Steve

The Air Bag module in the steering wheel is no good. The contacts burn and stick.

my horn did the same thing - we disconnected the horn (which in an 02' is behind the passenger side headlight) I'm sure it's wearing out and we need to replace it.