* Inertia Switch: This is the closest thing to a dedicated "safety switch." It's a small, usually red, switch that's designed to cut power to the fuel pump in the event of a collision. Its location varies slightly by model, but it's typically under the dash, often near the driver's side knee area, or sometimes under the hood, near the fuse box. You'll need to consult your owner's manual or a repair manual for the exact location.
* Fuel Pump Relay: This electrical relay controls power to the fuel pump. Failure of the relay acts as a safety feature (no power to the pump). It's located in the underhood fuse box.
* Computer Control: The engine computer (PCM) monitors various sensors and conditions before allowing the fuel pump to operate. This is a built-in safety feature.
To find the inertia switch: It's best to start by checking under the dash, in the areas mentioned above. If it's not there, check under the hood near the fuse box. The switch is often labeled. If you can't locate it, a repair manual specific to your 1992 Caravan year and engine will provide the exact location.
