fuelpump shutoff switch?

There's a note under the hood that states, if the fuelpump shutoff switch is triggered, the fuelpump won't run. My car just stopped last night and now it won't start again. It's been working fine up until the point where it stopped so I'm thinking the switch might be the problem.

Anyone know where this thing is located and how to reset it?

What year is the Aerostar in question?
There are a couple of different places that this INERTIA SWITCH could be.
Try looking to the right of the Engine Doghouse, in the front floorboard. Also try looking in the front right (Passenger side) kickpanel.

Oh... and how to reset it, just push the button that is on top of it.