Where is the 1999 ford explorer fuel pump reset switch location?

The 1999 Ford Explorer does not have a fuel pump reset switch. There's no such switch in that model year or in most vehicles. If you're having fuel pump issues, it's a more involved mechanical or electrical problem that requires troubleshooting and likely repair or replacement of the fuel pump itself, the fuel pump relay, or perhaps a faulty fuel pump inertia switch (which is a safety feature, not a reset switch).