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F150 horn going off - 2004 Ford F150

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My horn on my ford f150 truck 1994 doesn't work. What steps can I do to fix it myself ?

Go to the 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.

Please rate my info.

Feb 27, 2013 | 1994 Ford F150 Styleside Supercab

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

2002 f150 horn sounds on it's own. what to do? Thanks

Unplug the horn or pull the horn fuse until you can get it looked at by a mechanic.

Mar 17, 2011 | 2002 Ford F150 Regular Cab

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Where is the horn fuse for the ford f 150 2002

The horn fuse for this 2002 ford f150 is located in the engine compartment fuse/relay box , heres a diagram of that box , i circled the fuse for the horn, it is in location f1.7. hope this is helpful. also you may want to check the horn relay thats also located in the same box and i circled that also. have a good day.johnjohn2_72.gif

Feb 27, 2011 | 2002 Ford F150 Regular Cab

1 Answer


Engine Compartment Fuse panel, Relay 205

If you did not get an owners manual with your truck ( purchased used ), you can download one from Ford :

Mar 02, 2010 | 2002 Ford F150 Regular Cab

1 Answer

1996 Ford F150 Truck Horn will not blow.check horn itself Ok.

How did you check the horn? You need to ohm it out. If in spec it is good. Check the fuse for it. Check the connector. Also If that is all good maybe be clockspring in steering wheel.

Feb 26, 2010 | 1997 Ford F150 Regular Cab

2 Answers

Replaced battery after starting the lights

alarm is going off sounds like you have an after market alarm need to disarm it

Jan 17, 2010 | 1999 Ford F150 Regular Cab

2 Answers

Horn not working

Check your horn fuse...

Sep 10, 2009 | 2004 Ford F150

1 Answer

2004 F 150 horn issues

Here is a pic of the horn location.
Go to NAPA or Autozone and get you a cheap 12V test light usually 5 to 6 bucks.
Hook the clamp end to a good ground like a metal bolt or battery neg. cable then touch the light end to the battery + cable to make sure it lights up.
Now hook the light to the horn connector and press the horn button and see if it lights up. If it does then the horn is bad. If it doesn't then let us know.

Mar 19, 2009 | 2004 Ford F150

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