Fuse for interior lights - 2001 Ford Focus

Fuse# 35 7.5 you can find this right underneath your steering wheel right above your break

Often times the owners manual will tell you fuse box locations and give you a diagram to which fuse controls what, and what amprage fuse youll need to replace it with. if the manual doesnt tell you which fuse controls what, then the fuse box should have a diagram somewhere close by like on a cover to the actual box. if all else fails, google "fuse box location 2001 focus" and see where it is