Fuel Pump Relay

When ignition switch is turned to ON position, PCM turns electric fuel pump on by energizing fuel pump relay. PCM keeps relay energized if engine is running or cranking (PCM is receiving reference pulses from ignition module). If there are no reference pulses, PCM turns pump off.

For additional information on fuel pump activation, see SYSTEM & COMPONENT TESTING - 3.4L AZTEK & RENDEZVOUS article.