How to Reset a Fuel Pump Shut Off Switchby Richard Rowe
Many vehicles available today come with fuel pump shut-off switches. These devices are essentially circuit breakers that sit inside you car's airbag control module's inertia switch, which is supposed to trigger when the vehicle comes to a sudden stop. This safety feature is intended to shut the fuel pump off in the event of an accident, but can sometimes be triggered by a pothole or even by sudden brake application. These switches are generally designed for a quick reset, but some models may require a more involved approach.
Locate your car's inertial trigger or airbag control module. You owner's manual should give the exact location, but if it doesn't try looking inside the center console, under the front seats, behind the glove compartment or behind the driver or passenger-side kick panels. These are the trim pieces just ahead of your front doors where your foot typically brushes.
Push the button on the inertial switch; it should be clearly marked as the fuel pump reset, and may be in a contrasting color to the case. You may need to turn the ignition key to the on or accessory position to energize the module and reset the switch. Proceed to the next step if your inertia switch doesn't use an external button.
Remove the inertia switch cover by either prying the plastic clips loose or removing the screws that hold it in place. Inside the switch you'll see one of three things: a button, a circuit-breaker-type switch or a fuse. Push the button or flip the breaker switch back to its original position. If your inertia switch uses an internal fuse, pull the blown fuse out and replace it with another fuse of the same rating.
- "2003 Ford Mustang Owners' Manual"; Ford Motor Company; 2003
- "2006 Toyota Camry Owner's Manual"; Toyota; 2006
- "2001 Ford Excursion Owners' Manual"; Ford; 2001
Things You'll Need
- Socket set, metric and standard
- Replacement fuse
Richard Rowe has been writing professionally since 2007, specializing in automotive topics. He has worked as a tractor-trailer driver and mechanic, a rigger at a fire engine factory and as a race-car driver and builder. Rowe studied engineering, philosophy and American literature at Central Florida Community College.