To find the correct fuse:
1. Locate the underhood fuse box: This is usually a black plastic box located near the battery.
2. Open the fuse box cover: You'll likely need to remove a cover or latch.
3. Consult the fuse box diagram: The inside of the cover or a sticker inside the fuse box should have a diagram showing the fuse locations and their corresponding circuits. Look for the fuse labeled "Power Outlet," "Accessory Power," "Cigarette Lighter," or something similar. The amperage rating of the fuse should also be listed.
4. Check the fuse: Carefully examine the fuse to see if it's blown. A blown fuse will have a broken internal filament.
If you can't find the diagram on the fuse box cover, you can try searching online for a "2001 Ford Ranger fuse box diagram". Many websites and forums provide these diagrams. Always remember to disconnect the negative battery terminal before working with any fuses or electrical components in your vehicle.