What fuse is the horn on a Citroen Xsara Picasso?

On a Citroën Xsara Picasso, the horn is typically protected by a fuse located in the fuse box. The specific fuse number can vary by model year, but it is often numbered as fuse 9 or fuse 10. To be certain, it's best to consult the owner's manual for the exact fuse number and location for your particular model.