2002 Ford Focus the interiror lights dont work

For interier lighting it could be either 2 fuses, but if you are having an electrical problem with your vehicle, then I would suggest you checking each and every fuse. When you take off the cover to your fuse box, if you turn it around, with the two prongs at the bottom, that will be your fuse diagram. If you need further direction, the two fuses you will have to check, is either your dash, or interior lighting. The first is going to be in slot F30, in the top left hand corner. It will be a 10amp fuse. The other is on the bottom row, the 4th fuse from the right. This one will be a 7.5amp fuse. Those are the fuses that control your interior lighting. But like I said, I would suggest checking each fuse, as they control vital components to your vehicle.