When outside temperature goes below 33 degrees,you turn the wheel left or right the horn will toot. If you park the vehicle with the wheel turned either way the horn will start honking until you go out and straighten the wheel. The horn toots while you are driving down the road and turn left or right.
Year? model? does it have an air bag in the steering wheel? most likely the horn switch is bad
SOURCE: 2002 Ford Focus Doors lock with key fob, but horn does not honk
there are two seperate horns
SOURCE: 2003 Mitsubishi Lancer horn not honking
check all the wiring in the stearing wheel. Cover should screw off from the back side. Make sure the horn is hooked up. Should be in the front bumper. If it still dont work then buy a new one. Should run about fiftenn bucks.
SOURCE: 2000 Tahoe Horn broken
You can remove the horn relay and use a Ohm meter and check the resistance between the horn relay connector terminal No. 86 (Black Wire) and ground. If the ohms are less then 5 ohms replace the horn relay. There are a lot more tests but as Polarcycle states you can do what he suggested other then I believe you have two horns in this vehicle.
SOURCE: Horn wont honk. Fuse is good and horn honks when
check relay , yes , also check ground circuit, if horn grounds by it's mount or by external wire... check all.. also check horn button contacts go bad or horn brush in steering wheel...
SOURCE: Keyless remote locks the doors but the horn doesn't honk.
First and foremost: THANK YOU! Leave it this way! That horn honk is annoying. There is an option on cars with factory alarms to disable the (annoying) horn feature by removing and re-inserting an electronic key usually found somewhere below the steering wheel. There is no problem with your alarm.
Hope this helped,
matt
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2003 Chevy Trailblazer. Yes it does have airbag in the steering wheel
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