Which fuse is correct one for fuel pump relay 1999 Cadillac Catera?

The 1999 Cadillac Catera's fuel pump relay doesn't directly use a fuse in the traditional sense. The fuel pump itself is protected by a fuse, but the relay is controlled by a circuit that *might* have a fuse in the larger power distribution system. There's no single "fuel pump relay fuse".

To find the correct fuse, you need to consult your owner's manual. Look for the fuse box diagrams. It'll likely show a fuse protecting the circuit that powers the fuel pump relay, or it might show the fuse for the fuel pump itself. You'll need to trace the wiring diagram to be certain.

Important Note: If your fuel pump isn't working, replacing a fuse might not fix it. The problem could be the relay itself, the fuel pump motor, or a wiring issue. Jumping to conclusions and replacing parts without proper diagnosis is inefficient and potentially dangerous.