Does the 1999 Ford Explorer has a inertia switch?

Yes, the 1999 Ford Explorer has an inertia switch. The inertia switch is a safety device that is designed to shut off the fuel pump in the event of a collision. This helps to prevent the engine from continuing to run and potentially causing a fire. The inertia switch is located in the passenger compartment of the vehicle, usually under the dashboard or on the firewall. It is a small, black box with a red button on top. If the vehicle is involved in a collision, the inertia switch will automatically shut off the fuel pump. To reset the inertia switch, simply push the red button back in.