* Under the hood in the fuse box: This is the most common location. The fuse box is usually located near the battery. Look for a diagram on the inside of the fuse box lid to identify the fuel pump relay. The relay itself might be labeled, or you might need to consult a wiring diagram to be sure.
* Under the dash: Less common, but possible. This would be within the main fuse/relay panel under the dashboard. Again, a diagram on the inside of the panel cover is helpful.
To find it definitively:
1. Consult your owner's manual: This is the best resource. It should have a diagram showing the location of all fuses and relays.
2. Use a wiring diagram: A wiring diagram for your specific year, make, and model will pinpoint the relay's location and its connection to the fuel pump circuit. You can find these online (sometimes for free, often for a small fee) through sources like Haynes or Chilton repair manuals, or online automotive parts websites.
3. Look for a relay that's likely to be the fuel pump relay: It's usually a relatively large relay, especially compared to other relays in the fuse box. You can also visually inspect the wires connected to it and see if you can trace them. If unsure, do not attempt to test a random relay.
Remember to always disconnect the negative battery terminal before working with electrical components in your vehicle to prevent accidental shorts and injury.
