* Under the hood in the relay center: Many GM vehicles of this era have a fuse and relay box under the hood, often near the battery. This is the most likely location. Check your owner's manual or a wiring diagram for the specific location of the fuel pump relay within that box. The relay itself may be labeled, or you may need to refer to the diagram.
* Inside the car, usually under the dash: Less common for the fuel pump relay, but some GM vehicles placed relays in a secondary box within the passenger compartment.
To find it:
1. Consult your owner's manual: This is the best starting point. It should have a diagram of the fuse and relay boxes.
2. Look for a relay box under the hood: This is usually a black plastic box with numerous relays and fuses.
3. Check for labeling: The relay might be labeled "Fuel Pump" or have a number corresponding to the fuel pump in a diagram.
4. Use a wiring diagram: If you can't find it visually, a wiring diagram specific to your 1997 Cadillac Catera will show the relay's location and circuit. You can often find these online through forums dedicated to Cadillac Cateras or automotive repair websites.
Important Note: Before working with any automotive electrical components, disconnect the negative terminal of your battery to prevent shorts or electrical shocks.
