Question about 2008 Scion Xb

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Horn blows constantly

Removing the fuse turns the horn off, so its not a short to power on the relay output side. I have also disconnected the wiring at the front side of the clockspring, as well as behind it, horn continues to blow when the fuse is reinstalled. Ohm'd wire from back of clockspring to ground, 20 million ohms of resistance, so no short to ground. All thats left really is the fuse box and relay, the dealer says the relay is internal to the box.

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SOURCE: my horn stopped working on my 2006 Toyota Scion SB

most new cars have what is called a clock spring be hind the steering wheel.this is a flat ribbon cable like what you would Se in a computer.what can happen when the ribbon is damaged is the horn can quit working.the cruse control .and the air bag light will come also.but most likely one of the problems will occur.but over time the other problems start happening also.so are you sure you are getting power to the relay .use a volt meter on the terminals under the relay and have someone to push the horn button.this will tell you if you are getting power from the horn button.

Posted on Oct 21, 2009

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I have a 1998 chrysler concorde. The airbag light on the dash stays on and my horn doesnt work. How do i fix this without costing me tons of money?


Could be a wiring problem or the clockspring in the steering column.
You would need to pull the steering wheel and test the circuits.

Mar 26, 2015 | Chrysler Cars & Trucks

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Where is the horn relay on a 2001 mitsu mirage?


should be under the hood on drivers side in a black box...if that doesnt turn it off you may have to remove the wires to the horn...you have a hard short somewhere ...mainly happens at steering wheel.

Nov 20, 2014 | 2001 Mitsubishi Mirage

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Bought a 1992 acura vigor and found horn fuse missing. when I replaced the fuse alarm goes off and constantly sounds. how do I stop it? I've read that there's a relay somewhere under the hood


horn relay located on the right side kick panel,you will see a row of relays,if horn relay is okay, more likely your horn control pad has a short inside causing horn button contacts to stick causing horn to keep blowing.

Oct 01, 2012 | 1992 Acura Vigor

1 Answer

For 2004 ford truck f150 extended cab, I found the horn fuse, where is the horn relay?


disconnect the horn or horns, operate the horn and see if the fuse still blows. if the fuse still blows then there is most likely a short in the wiring. relays rarely cause shorts. if the fuse doesnt blow with the horn disconnected, reconnect the horn and operate the horn again, if the fuse blows you have a shorted horn.

Jul 14, 2012 | 2004 Ford F150

1 Answer

Horn blows constantly, doesn,t blow the fuse or anything else. can this problem be outside of the horn blowing assy. on the steering wheel? it,s a 2000 galant. problem occurs all the time if the switch is...


  • The horn relay might have welded contacts (stuck in the on position). Pulling the relay should stop the horn.
  • The wiring harness on the steering column might have a broken wire to the horn relay shorting to someplace that applies power to the relay. In this case, turning the steering wheel all the way to one side or the other may stop the horn, and it won't sound when you press the horn button.
  • The horn button in the steering wheel is stuck on or shorted.

Oct 28, 2010 | 2000 Mitsubishi Galant

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2006 grand prix horn fuse keeps blowing. what should i look for


horn may be shorted internally. Try pulling the connector off the horn, put in a fresh fuse, see if it blows.

If it still blows, you have a short in the wiring or the relay. If there is no obvious short in the wiring, change the relay.

If the fuse doesn't blow with the horn disconnected, replace the horn.

Sep 11, 2010 | 2006 Pontiac Grand Prix

1 Answer

Horn started blowing constantly...No voltage at cigarette lighter.....put 12v to lighter wire and horn blows constantly again. need lighter/horn wiring.....there must be a 12v to ground short associated...


the horn circuit is that theres 12v fed to one side of horn and works when its return is grounded at the horn button,,the feed to thec/liter may also be the feed to the horn,,the horn staying on may be the button return spring has calapsed and the contacts not seperating

Jun 23, 2010 | 2000 Dodge Stratus

2 Answers

I changed the fuse now the horn goes off constantly. Where is the relay located?


90 % horn on steering wheel is bad. 10 % chance its the relay. most realys are on the driver side under the hood. I would unplug the wire from the horn. so its good and quite. now put the fuse in and out fast and get someone to try to hear the relay click.

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2 Answers

Horn blows fuses


you may need to put a relay in it as the current from the horn may be back feeding up the immobiliser horn circuit and causing a short. Sounds like the immobiiliser has its own source of power seperate from the factory circuit When you press the horn the power goes to the horn and up the immobiliser horn circuit and it blows the fuse.

Oct 14, 2008 | 1999 Volkswagen Jetta

1 Answer

Electical


You may have some short circuits in your wiring, a bad horn relay or horn unit, and/or a bad wiper motor. Hard to tell without actually looking at it.
Try this:
Disconnect the horn, and try another fuse. Does it blow? If not, the horn is shorted, and needs replaced. If it blows, remove the horn relay & try another fuse. Same with the wiper motor, unplug it and try another fuse. If it does not blow, you need a wiper motor.

Sep 26, 2008 | 1985 Toyota 4Runner

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