WARNING: This page is about a different car, the 2001 Ford Focus and 2000 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Active Anti-Theft Alarm System Wiring Diagram (2000 Focus - 1 Of 2)
Fig 2: Active Anti-Theft Alarm System Wiring Diagram (2000 Focus - 2 Of 2)
Fig 3: Active Anti-Theft Alarm System Wiring Diagram (2001 Focus - 1 Of 2)
Fig 4: Active Anti-Theft Alarm System Wiring Diagram (2001 Focus - 2 Of 2)