Like most vehicles, the 2001 Ford Focus uses a fuse to control power to the headlights (one fuse per bulb). If one of the headlight fuses is burned out, your headlights will be inoperative. Replacing a bad headlight fuse does not require a trip to the dealer or a service center; it can be replaced at home, even if you are inexperienced in auto repair. The headlights use typical 10A fuses; you can purchase a package of them at any automotive parts store.
Turn the engine off, open the hood, and disconnect the negative battery cable (--) with your pliers.
Locate the power distribution box against the firewall on the driver's side of the engine compartment. Flip up the latch and remove the plastic cover.
Determine which headlight fuse you want to replace. The 2001 Ford Focus uses four headlight fuses--one for each headlight. Fuse number 16 is for the passenger side low beam; fuse number 17 is for the driver's side low beam. Fuse number 26 is for the passenger side high beam; fuse number 27 is for the driver's side high beam.
Grasp the fuse with your fingers and pull it straight out of its mount. Insert the new fuse in its place. Replace the plastic cover and reconnect the negative battery cable.
