According to my Chilton repair manual there is a 20 amp fuse in your fusebox (under your dash on driver's side) that is for your horns. The Chilton book has the fuse being in location # 2. That's a place to start.
If the fuse, relay and horn check out okay it sounds like the classic "clock spring" in the steering column.
I believe that is located below the battery tray
Run a direct wire from the battery to the horn, if it works the problem is in the horn button or the fuse. On second thought, use a test light to see if the horn wire is getting power when the horn button is pressed. If it is, make sure the horn has a good ground. If everything checks out, replace the horn.
horn location for 2004 ford explorer
where is the horn located on a 1999 ford explorer?
You have to manually test the inputs and outputs of the clockspring with an ohm meter. But if you have lost your horn, cruise, and your airbag light is flashing a code 32 (three flashes, short pause, then two flashes, long pause, and repeat), then you can pretty much bet the clockspring is bad.
I believe the horn is mounted to the Explorer below the battery tray
The 2006 four Explorer factory horn is located on the right hand side of the radiator. The horn will be behind the front grill.
horn not working on 2003 ford explorer sport trac, just a clicking sound
Siegfried Horn died in 1993.
I believe the horn is mounted below the battery tray
I believe the horn is mounted below the battery tray
Horn not working