How can I tell if the Ford inertia switch has tripped?

The diagram shows the reset button in a raised, dashed-outline position labeled "POSITION FOR OPEN SWITCH" — if the button is up in this position, the switch is open (tripped).

How do I reset the fuel pump inertia switch?

Press the reset button down; the diagram labels the depressed button position as "RESET BUTTON (SWITCH CLOSED)," indicating the switch is closed and reset when the button is pushed in.

Where is the reset button on the inertia switch?

Per the illustration, the reset button is on the top of the inertia switch assembly.

Home/ Registry/ Ford/ Bronco/ 1992-1996/ “The Bronco”/ Photo supermotors.net/registry/media/254838

Ford Bronco Fuel Pump Inertia Switch Reset Button Diagram - Open vs Closed

Diagram of inertia fuel shutoff switch showing open position and reset button

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Service manual figure of an inertia switch labeling the open-switch position and the reset button when closed.

AI caption October 2005 · Photo 129 of 277

This document is a single line-art illustration from a Ford service manual showing the fuel pump inertia switch (fuel cutoff switch). The diagram depicts the switch assembly with its electrical connector terminals at the lower left and the reset button on top. Two callouts explain the reset button's positions: a dashed outline at the top labeled "POSITION FOR OPEN SWITCH" shows where the button sits when the switch has been tripped (fuel pump circuit open), and the solid outline labeled "RESET BUTTON (SWITCH CLOSED)" shows the depressed position when the switch is reset and the circuit is closed. The figure reference number A20827-A appears at the bottom right. A reader can learn how to visually identify whether the inertia switch has tripped (button popped up in the open position) and that pressing the reset button down restores the closed (normal operating) state. The illustration was uploaded to a 1992 Ford Bronco gallery and is consistent with the inertia/fuel shutoff switch used on Ford trucks of that era, though the drawing itself contains no year, model, or part number text.

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Frequently asked questions

How can I tell if the Ford inertia switch has tripped?: The diagram shows the reset button in a raised, dashed-outline position labeled "POSITION FOR OPEN SWITCH" — if the button is up in this position, the switch is open (tripped).
How do I reset the fuel pump inertia switch?: Press the reset button down; the diagram labels the depressed button position as "RESET BUTTON (SWITCH CLOSED)," indicating the switch is closed and reset when the button is pushed in.
Where is the reset button on the inertia switch?: Per the illustration, the reset button is on the top of the inertia switch assembly.