WARNINGS:
Stop refuelling after the fuel nozzle stops the second time. Additional fuel will fill the expansion space in the fuel tank which could lead to fuel overflowing. Fuel spillage could be hazardous to other road users.
Do not use any kind of flames or heat near the fuel system. The fuel system is under pressure. There is a risk of injury if the fuel system is leaking.
Ford Focus Key Programming Switch State Control - General Procedures
Special Tool(s)
Vehicle Communication Module (VCM) and Integrated Diagnostic System
(IDS) software with appropriate hardware, or equivalent scan tool
NOTE: The spare key programming switch is a programmable switch which
provides the capability to enable/disable ...