RAM 1500 Truck 2WD V6-3.9L VIN X (1999)
Fuel Pump Relay: Description and Operation
FUEL PUMP RELAY-PCM OUTPUT
The PCM energizes the electric fuel pump through the fuel pump relay. Battery voltage is applied to the fuel pump relay when the ignition key is
ON. The relay is energized when a ground signal is provided by the PCM.
The fuel pump will operate for approximately one second unless the engine is operating or the starter motor is engaged.
Power Distribution Center (PDC)
The fuel pump relay is located in the Power Distribution Center (PDC).
