The engine immobiliser is a theft protection system that prevents someone from starting the engine with an incorrectly coded key.
Ford Focus Fuel cut-off switch
Vehicles with a Duratec engine
The fuel supply may be cut off as a result
of an accident or sudden vibrations (e.g.
collision when parking).
The switch is located in the side panel in
front of the driver's door.
Resetting the switch
WARNING:
Do not reset the fuel cut-off switch
if ...