S-Type (X200) V8-4.2L (2005)
Inertia Fuel Shutoff Switch: Description and Operation
Fuel Tank And Lines - VIN Range: N52048->N99999
Inertia Fuel Shutoff (IFS) Switch
The inertia fuel shutoff (IFS) switch is designed to cut power to the fuel pump in the event of an accident. It is located behind the left-hand cowl side trim
panel.