Where is the fuse for the horn on 2002 Ford Focus?

The horn fuse for a 2002 Ford Focus is located in the fuse box under the dashboard on the driver's side. Specifically, it is in the fuse panel above the brake pedal. You can identify it by checking the diagram on the fuse box cover, which will indicate the specific fuse number for the horn. If the horn isn't working, checking this fuse is a good first step.