To find the correct fuse:
1. Consult your owner's manual: This is the best resource. It will have a diagram of the fuse box(es) showing the location and amperage of each fuse. Look for "cigarette lighter," "power outlet," or a similar designation.
2. Examine the underhood fuse box: The cover usually has a diagram printed on the inside. Look for fuses labeled "power outlet," "accessory," or a similar description.
If your owner's manual is unavailable or doesn't provide the answer, you can try searching online for a 1998 Ford Expedition fuse box diagram. Many websites and forums dedicated to Ford vehicles provide this information. Be sure to specify the year and model when searching.
Remember to always turn off the vehicle and disconnect the negative battery terminal before working with fuses to avoid electrical shocks.
