Inertia Fuel Shutoff (Ifs) Switch

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1995 Mercury Grand Marquis, 1995 Mercury Cougar, 1995 Lincoln Town Car, 1995 Lincoln Continental, and 1995 Ford Thunderbird. However, it is still accessible from the selected car via links, so may be relevant.

If IFS switch is tripped, engine cannot be restarted until switch is manually reset. To reset IFS switch, depress switch button. For IFS switch location, see INERTIA FUEL SHUTOFF (IFS) SWITCH LOCATION table.

INERTIA FUEL SHUTOFF (IFS) SWITCH LOCATION

Application	Location
All	In Trunk On Left Hinge Support Or Behind Trim Panel

To test IFS switch, turn ignition off. Remove IFS switch. Shake IFS switch to force it into tripped position (switch open). Check continuity between appropriate IFS switch terminals. See appropriate article in the ENGINE PERFORMANCE section:
- WIRING DIAGRAMS - Continental
- WIRING DIAGRAMS - 4.6L - Cougar & Thunderbird
- WIRING DIAGRAMS - Town Car
- WIRING DIAGRAMS - 4.6L - Crown Victoria & Grand Marquis

Continuity should not exists. Reset switch and ensure continuity exists between appropriate terminals.