Explore the wiring diagram for a 2002 Honda Accord to troubleshoot electrical issues and make repairs with ease.. such as the headlights, fuel pump, and cooling fan, by opening or closing the electrical circuit as needed. 6.. It is important to keep the battery terminals free of corrosion and ensure that the battery is securely mounted... The first is P0087 (low fuel pressure), P0171, and P0174 (lean air-fuel mixture), P0230 (fuel pump relay low voltage), P0148 (fuel starvation), P0627 (fuel pump control circuit open). Conclusion At the end of the day, the best thing you can do to understand fuel pump wiring on any car is to get yourself a multimeter and use our guide to learn.
