Question about 2005 Pontiac Sunfire

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Horn failure The horn on my 2005 Pontiac Sunfire stopped working. I'm fairly sure it's a problem with the switch (or whatever) in the steering wheel as it does work occasionally. Also, when it does work, it does only when pressing one side of the inner section of the steering wheel, not all the way around.

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Te switch is bad...."

or it could be the relay that is sticking....too

Posted on May 24, 2009


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Posted on Jan 02, 2017


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How to get to the horn swicth on steering wheel of 2000 pontiac sunfire

Pull the air bag module , don't recommend you do that ! Is the air bag light lit on the instrument cluster ? Horn not working an air bag light lit would indicate clock spring problem . Do you know what the clock spring is ?
How cars clock spring works

Did you check the horn relay ? Do you know what a relay is ?

VEHICLE RELAYS Operation Diagnosis

Mar 06, 2018 | 2000 Pontiac Sunfire

1 Answer

Horn does not work fuse is ok is there a horn relay?

Hi, I'm glad to help!

The horn relay is located inside the car mounted to the junction block which is also known as the fuse box. But there is a possibility that it could be the horn itself OR the clock spring behind the steering wheel. To eliminate the horns as the problem have someone who knows how run power and ground to the horn's one at a time to make sure there are OK. If they are then the next step would be to ground the horn wire coming from the horn pad on the steering wheel. Unfortunately the steering wheel will need o be removed to do this. Because if you ground the wire for the horn pad and nothing happens, then you know you need a "Clock Spring". Hope this helps and have an awesome day.

Mar 27, 2013 | 1999 Pontiac Sunfire

1 Answer

Pontiac sunfire interior lights, horn and blinkers do not work

They are talking about the body control module, but I'm not sure they are right. The horn does not need the bcm to work. See diagram below. The horn relay is energized by the horn switch on the steering wheel. The switch also signals the bcm, but that is not used to power the horn.

The turn signal does not use the bcm at all. The problem there may be the switch or the wire. See diagram below.


The instrument lights DO REQUIRE the bcm, but can be rewired to bypass the bcm. The gray wire from the bcm in the diagram below powers the instrument lights. You can cut the gray wire and splice it to the brown wire from the multi function switch. Find the brown wire coming out the bottom of the steering column, skin some insulation off the wire and verify it has 12 volts when the parking lights are on. Do not cut the brown wire--just attach the gray wire to it. You will not be able to dim the lights, but they will come on.


Aug 07, 2017 | 2005 Pontiac Sunfire

1 Answer


HI. The first check point will be the fuse. make sure that the fuse filament isn't severed. This is common. If the fuse is in good condition, move onto the wiring and horn device. There may be a disconnection at the horn connection point. You can also test the connection wires for shorts, as well.

More than likely the actual horn may need to be replaced if the wiring and fuse prove to be in good condition. A basic multimeter can be used for the wire test, if you have one.

NOTE: In rare cases, the horn switch in the steering wheel could be the culprit, although, highly unlikely in most cases.

Nov 01, 2011 | 2003 Pontiac Sunfire

2 Answers

My 2005 Pontiac Sunfire horn stopped working. I've tried replacing the fuse, but that's not the problem. Any ideas?

Hello: It could be a failed horn. the best way to check is to get a test light and connect one end to the green wire at the horn connection and the other end to a good ground, have helper press horn. if test light lights up the horn has failed. also you might check the fuse box under the hood and see if there is a horn relay. if there is a horn relay then look to see if there another relay like it. if there is one swap the relays and see if the horn works.

Jan 26, 2011 | Pontiac Sunfire Cars & Trucks

1 Answer

The horn button on the steering wheel is not working on a 1998 sunfire GT

  • Check the fuse first and if the fuse is good checked the connection of the wire in your horn button and make sure that the negative wire is properly connected.
  • After you perform this and still the same check the horn maybe the connection on the horn is not properly connected.
  • If you have additional questions feel free to reply to this solution.

Jun 17, 2010 | 1998 Pontiac Sunfire

1 Answer

Location of horn on a 2000 pontiac sunfire se

On the steering wheel. There should be little horn symbols on your steering wheel in the center.

Feb 13, 2010 | 2000 Pontiac Sunfire

2 Answers

98 bonneville horn issue- changed both horns, relay works, I can now get my panic horn button to blow horn which didnt before. Still cant get my steering wheel to blow horn. Fuses are good based on my...

The HORN Is a GROUND CONTROLLED BUTTON you need to FIRST Check under CENTER STEERING WHEEL Cover to see if it has a Bad Commectiot, After Asuring this there Is c CLOCK Spring UNDER Steering Wheel that is Fairly Common for Failing.

The FOB / Remote Utilizes a Different Part of the Curcuit to Activate Horn, I Hope this Helps you With your Problem as Im Sure of All that I Advised. Remember to RATE ME !!

Oct 04, 2009 | 1998 Pontiac Bonneville

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