You can find this diagram in a few places:
* Owner's Manual: The most reliable source. Check your owner's manual; it almost certainly has a fuse box diagram.
* Online Resources: Many websites offer repair manuals and diagrams for older Cadillacs. Search online for "1993 Cadillac Sedan DeVille fuse box diagram" or "1993 Cadillac Sedan DeVille fuse panel layout." Be cautious about the site's reputation; some might offer inaccurate or incomplete information. Sites specializing in car repair manuals (often subscription-based) are usually more reliable.
* Auto Parts Store: Auto parts stores like AutoZone, Advance Auto Parts, or NAPA may have access to diagrams. They might even have printed versions available.
* Online Forums: Cadillac-specific forums (like those found on sites like Club Cadillac) could be helpful. Someone there might have a scanned copy of the diagram they can share.
Remember to always disconnect the negative battery terminal before working on any electrical components in your vehicle.