Ford Excursion, Expedition, Lincoln Navigator 2000-2005

Fuel Injector Control Module



6.0L Diesel Engine

The FICM receives information from the PCM, including the volume of fuel desired, RPM, engine oil temperature, injection control pressure, and others. The FICM then uses those signals to calculate fuel injection and duration. After calculating injector fuel delivery time, the FICM sends 48 volts at a 20-amp pulse to the correct injector so that the correct amount of fuel is delivered to the cylinder at the correct time.

Removal & Installation

6.0L Diesel Engine

Make sure the ignition switch is in the OFF position prior to working on the electronic engine controls. All vehicles

  1. Turn the ignition switch to the OFF position.
  3. Relieve the cooling system pressure. Disconnect and plug or cap the engine vent hose and radiator vent hose.
    WARNING: Never remove the pressure relief cap while the engine is operating or when the cooling system is hot. Failure to follow these instructions can result in damage to the cooling system or engine or result in personal injury. To avoid having scalding hot coolant or steam blow out of the degas bottle when removing the pressure relief cap, wait until the engine has cooled, then wrap a thick cloth around the pressure relief cap and turn it slowly. Step back while the pressure is released from the cooling system. When certain all the pressure has been released, (still with a cloth) turn and remove the pressure relief cap. Failure to follow these instructions can result in personal injury.

  5. Remove the bolts and position the degas bottle aside. Late build vehicles
  7. Disconnect the two exhaust pressure (EP) sensor harness pin-type retainers.
  9. Disconnect the two exhaust pressure (EP) sensor harness pin-type retainers. All vehicles
  11. Remove the two bolts, two nuts and turbocharger intake tube bracket.
  13. Remove the fuel injector control module (FICM) bolts.
    Make sure both latches are released before removing the electrical connectors or connector damage can occur.

  15. Position out the FICM and disconnect the electrical connectors. Remove the FICM.
    With the engine cold, fill vehicles without a yellow fill level decal on the degas bottle only to the MIN line. The correct fill level on these vehicles is between the MIN line and 15 mm (0.59 in) below the MIN line. Fill vehicles with a yellow fill level decal to within the yellow cold fill range shown on the decal. These fill levels will allow for coolant expansion. Overfilling the degas bottle may result in damage to the pressure cap, which can cause the engine to overheat.


To install:

  1. To install, reverse the removal procedure and note the following:
    1. Tighten the fuel injector control module bolts to 10 ft. lbs. (13 Nm).
    3. Tighten the turbocharger intake tube bracket nuts to 10 ft. lbs. (13 Nm).
    5. Tighten the degas bottle bolts to 89 inch. lbs. (10 Nm).



6.0L Diesel Engine

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Fig. Fuel Injection Control Module Connector View

  1. Checking the ignition power circuit for voltage:

    Turn ignition switch off.
    Disconnect the FICM C connector.
    Turn ignition switch on engine off.
    Measure the voltage between the FICM ignition power circuit pin 7, harness side and ground.
    The voltage reading should be higher than 10 volts.
    If the voltage is not as stated repair power circuit.

  3. Checking the FICM ground circuits for an open condition:

    Check Pin 1 and ground
    Check Pin 2 and ground
    Check Pin 3 and ground
    Check Pin 22 and ground
    Check Pin 26 and ground
    The resistances readings should be less than 5 ohms, if not repair the circuit in question.