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Go to the Autozone.com site and register your vehicle for free. Then scroll to the bottom of the Homepage to the help sections. Some are free and some are pay sites.
The info you want is available Free. Should be under wiring and diagrams
Then go to Diagrams and there will be Power box info which will show Relay locations item by item. Remove the Horn Relay. Replace and switch the relay with a like part #. For testing, an unused Relay when the engine is OFF can be swapped to test.
If the horn will not sound with the different relay, your problem is not with the relay but with a wire or the horn itself.
The problem is likely with the clockspring in the steering column. The wiring for the horn button and the driver's air bag go through the clockspring. If you want to fix it yourself, I can probably find the procedure for you, but this is really a job for a professional auto electrician.
There are also relays for the horn. First check would be the connections at the horn then the fuse. If the fuse isn't blown, it's possible that the relay has gone on it. Another item to check would be the wires leading up to the horn it's self. If any of them are frayed and touching bare metal, causing a short circuit, the horn wouldn't work then.
disconnect the negative batery terminal be fore you mess with the horn. the cover should come off easily and you will the wire for the horn on my car the wire is green
LOOK UNDER THE LOWER AIR DEFLECTOR FROM BELOW THE RADIATOR. IF YOU HOT WIRE CAR HORN AND IT WORKS.YOU HAVE TO REPLACE THE WHOLE AIRBAG IN STEERING WITH HORN CONTROL BUTTONS.YOU NEED TO DISABLE AIRBAG IN STEERING WHEEL WHEN REPLACING AIRBAG AND HORN CONTROL BUTTON PAD.JUST TURN OFF RADIO FIRST, THEN DISCONNECT REMOVE THE NEGATIVE BATTERY CABLE.WAIT 20 MINUTES BEFORE WORKING ON AIRBAG AND HORN PAD IN THE STEERING WHEEL.
The fuse must be in the main fuse box. The position and function of the fuses is normally marked on the inside of the fuse box cover and also in the owner's handbook. If you don't come right with these, work your way through the fuses looking for a blown one. To ease your search the horn fuse it should be around 30 amps. A small pair or pliers will help removing the fuses for inspection.
easy check first ,, you need help,, disconnect the 2 wires at the horn itself, Located by the front gill under the hood,, use a multimeter to check for power,, have someone try and honk the horn to see if the horn itself is receiving power, if it is,, the horn went bad, if not,, the contacts in the horn contacts are bad, which doesn't happen often but it does happen, or ( and I don't know on your model, ) you may have a horn relay thats not working, I'll check more to see if I can locate that answer
The horn is located at the front of the vehicle near the radiator. Before you even look at the horn, check the fuse - the horn has its own fuse. Then check the horn relay and then the horn. Lastly, if the horn still does not work check the horn switch/button
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