To find the fuse, you'll need to consult your owner's manual. This is the most reliable source of information, as the fuse box layout can vary slightly even within model years. The manual will have a diagram showing the fuse box layout and what each fuse controls.
If you don't have the manual, you can often find a PDF version online by searching "2002 Jeep Wrangler owner's manual" and specifying whether it's a TJ or LJ. You can also try searching for a diagram of the fuse box online, but verify the image matches your specific Jeep year and model. Keep in mind that online diagrams may not be entirely accurate.