Fuel Pump Relay

Fuel Pump Relay:

The fuel pump relay provides power to the electric fuel pump. The fuel pump relay is controlled by the Powertrain Control Module (PCM). The PCM provides an electrical ground for the coil of the fuel pump relay, which causes the contacts in the relay to close. When the ignition switch is turned to the START position, the circuit opening relay will be energized for 3 seconds in order to allow the fuel pump to operate and pressurize the system.

The fuel pump will continue to operate if the PCM receives an ignition reference signal while the engine is cranking or the engine is started and running. The fuel pump operates as long as the fuel pump relay is energized by the PCM. When the fuel pump relay is de-energized, the fuel pump will stop operating. The fuel pump relay (2) is located in the junction box (3), next to the main relay (1), behind the LH side kick panel of the passenger compartment.