You'll find the fuse diagrams in a few places:
* Owner's Manual: The most likely place to start. Your owner's manual should have a section dedicated to fuses and relays, with diagrams showing their locations and what circuits they protect.
* Under the Hood: There's usually a fuse box under the hood, often with a cover that has a diagram printed on the inside of the cover. This diagram will show the fuses located *in that specific box*.
* Inside the Vehicle: Many vehicles also have an additional fuse panel or fuse block inside the cabin, usually in the dashboard or under the dash. Again, a diagram may be located on the cover.
* Online: You can search online for "2001 Ford Excursion fuse box diagram". Be sure to specify any additional information about your Excursion (like engine size or trim level) to get the most accurate results. Websites like Ford's official website (though finding older diagrams may be difficult) or parts websites might have diagrams. However, always double-check the information against your owner's manual.
Important Note: When working with fuses and electrical systems, always disconnect the negative battery terminal before starting any work to prevent electrical shock or damage to the vehicle's electronics.