Ford Focus (1999 - 2004) - fuse box diagram - Auto Genius May 01, 2015Ford Focus (1999 - 2004) - fuse box diagram. Ford Focus (1999 - 2004) - fuse box diagram. Everything about cars Skip to content. Search. Main page; About us; Contact us; Ford Focus (1999 – 2004) – fuse box diagram. Posted on 1 May 2015 23 July 2018 by admin. Fuse Diagram for the Both Fuse Boxes Needed - 2CarPros Where can I get a fuse diagram for the both fuse boxes under the hood and under the dash because they are numbered? I have no way of knowing what fuse does what because my manual does not show nothing. I have the car listed above it is the zx3 model with a 2.3 liter engine.