RAM 2500 Truck 2WD L6-5.9L DSL Turbo VIN 7 (2001)
Fuel Pump Relay: Description and Operation
FUEL INJECTION PUMP RELAY
The fuel injection pump relay is located in the Power Distribution Center (PDC). Refer to label under PDC cover for relay location.
The Engine Control Module (ECM) energizes the electric fuel injection pump through the fuel injection pump relay. Battery voltage is applied to
the fuel injection pump relay at all times. When the key is turned ON, the relay is energized when a 12-volt signal is provided by the ECM. When
energized, 12-volts is supplied to the Fuel Pump Control Module. The Fuel Pump Control Module is located on the top of the fuel injection pump
and is non-serviceable.
