Check with the dealer I had the same problem and it was something that was recalled in the stearing wheel , and was fixed for free.It has something to do with the air bag . So worth the time to get repaired Like I said it was free from the dealer.
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Do you have a air bag light lit on the instrument cluster ? I ask this because , if the air bag light is lit , could be a clock spring problem . I know ,what the heck is this guy talking about . You have a air bag on the steering wheel ,the horn button is on the steering wheel . The clock spring is located under the steering wheel , in the top of the steering coulmn . It has flat wire tape in side that allows the steering wheel to be turned full left to full right , keeping the horn , air bag , an any other button's on the steering wheel connected electricly to the vehicle. Plus there is a relay , when you push the horn button it energizes the relay turning on the horns. Watch these videos , will explain a little better . VEHICLE RELAYS Operation Diagnosis How cars clock spring works
The horn relay is located in the under hood fuse box .
if the steering wheel clicks when you push on the horn then the wiring from the horn pad out to the horn is good.if it clicked before you replaced the parts then you didn`t have to replace them.check the horn at the horn,with someone pushing on the horn pad tap the horn to see if it will try to work if so then the horn needs to be replaced if not then run a power wire from the battery positive to the connector at the horn if the horn works again the horn needs replacing.
simple circuit, but can be hard if problem is switch in steering wheel. First check fuse and relay at fuse box. relay should click when horn button on wheel is pushed. If relay doesn't click, either button or relay is bad. If relay clicks, test for voltage at horn. You can use a simple test light available at the auto parts store if you don't have a voltmeter. If there is voltage at the horn, replace horn.
If relay does not click, replace relay to see if that fixes your problem. If new relay doesn't fix, you have a bad switch in the steering wheel or possibly bad wiring. cannot help you with switch as it's different on every car. any questions--let me know.
If it is the same horn, there is probably something in the area where you push to activate the horn. The horn itself is obviously working so there is no fuse problems, most likely your problem is in the steering wheel.
first thing to do is check the fuses , also have a look and see if all the relays are there ,u should know by the diagram on the back of the fuse box cover, secondly check the contact brushes on the back of the steering wheel ,these connect the wheel to the horn,do this by pressing the horn and rotatng the wheel to see if the horn works in sertain positions,thirdly it could be the clock spring ,u would need to check the contineuity in the windings to make sure they were ok. but i would say its just a fuse!
a very common cause of this problem is the steering wheel mounted horn button looses it's connection to the horn circuit due to a defective ribbon rotating contact under the steering wheel, the special clock spring shaped ribbon wiring harness is what allows you to turn the wheel and still have a connection to all steering wheel buttons and the airbag, to check this listen for a click when u press the horn button with the engine off, it will be faint but if u listen closely u will hear it, if u don't hear it u will ned to replace the Clock-Spring rotating contact under the steering wheel. I am a Ford factory trained tech with 20 years of new car dealer experience.
Probably the switch in the steering wheel, or fuse, but usually horn fuse works other things too such as cig lighter or radio. If everything else is working fine, then to troubleshoot you'll need a testlight. I would start with the wiring harness where the steering collumn plugs in and decipher which wire is the horn wire. Put the test light clip on +power, then check the wires on the collumn side one by one, pushing the horn button on each one. The horn switch is the wire that makes the light blink when you push the button. If you try all the wires and none make the light blink, then its probably a problem with the horn switch in the s. wheel. Does it have an after market steering wheel? Because aftermarket wheels often have crappy horn switches in them. Also could be a horn relay if it has one. If you listen carfully while pushing the horn, you should hear the relay faint clicking. If you hear this, then the switch is working, but the relay might not be. Follow the sound to find it if you hear it. Test all sides of the relay with your light. Should get power constant on one term, and the other two should light when the horn button is pushed. Hope this helps. Cheers.