Inertia Fuel Shutoff (Ifs) Switch

WARNING: This page is about a different car, the 1994 Mercury Tracer, 1994 Mercury Topaz, 1994 Ford Tempo, 1994 Ford Probe, and 1994 Ford Escort. 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 below.

INERTIA FUEL SHUTOFF (IFS) SWITCH LOCATION

Application		Location
Escort & Tracer
Sedan		Right Side Of Trunk
Wagon		Behind Access Door In Right Rear Cargo Area
Probe		Right Side Of Trunk
Tempo & Topaz		In Trunk On Left Hinge Support Or Behind Trim Panel

To test inertia switch, turn ignition off. Remove inertia switch. Shake inertia switch to force switch into tripped position (switch open).Measure resistance between appropriate inertia switch terminals. See WIRING DIAGRAMS . Continuity should be not present between terminals with switch tripped and present when reset.