* Your Owner's Manual: This is the primary source. The owner's manual should have a detailed diagram of the fuse box locations and layouts, including amperage ratings.
* The Fuse Box Itself: Most fuse boxes have a diagram printed on the inside of the cover. This is usually a small diagram, but it should still be helpful.
* Repair Manual (Haynes, Chilton, etc.): These manuals often contain detailed wiring diagrams and fuse box layouts. You can find these online or at auto parts stores.
* Online Forums: Search online forums specific to Cadillac Cateras (like Cadillac forums or general car repair forums). Someone may have posted a picture of their fuse box diagram. Be cautious about the accuracy of information found here.
Important Note: Before working with any electrical system, disconnect the negative battery cable to prevent accidental short circuits and injury.