A fuel pump relay is an electrical device that supplies power to the fuel pump in a car. When the ignition is turned on, the relay sends power to the pump, which then begins to draw fuel from the gas tank and send it to the engine. If the fuel pump relay is not working properly, the fuel pump will not be able to get power and the engine will not be able to start. Fuel pump relays can fail for a variety of reasons, including electrical shorts, corrosion, and mechanical wear and tear.
It is important to be able to check the fuel pump relay to ensure that it is working properly. There are a few different ways to do this, but the most common method is to use a multimeter. A multimeter is a device that can measure voltage, current, and resistance. To check the fuel pump relay with a multimeter, follow these steps: