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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 747 (Engine Controls - Pinpoint Tests - 6.0L Diesel (99P E-Series & 99P F450/550)) >> Pinpoint Test R: Injection Pressure Regulator (IPR) >> Test Procedure

Test Procedure

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  1. R1 PRELIMINARY DIAGNOSIS FOR DTC P2623 
    NOTE: DTC will not set during crank mode.
    • Perform a visual inspection.
    • Connect the scan tool.
    • Retrieve and record all DTCs.
    • Clear all DTCs.
    • Perform the On-Demand Self Test.

    IS DTC P2623 PRESENT? 

    Yes No
    Go to  R2. Unable to duplicate condition. CHECK for loose connections, damaged or corroded pins. WIGGLE harness attempting to recreate fault. REFER to SYMPTOM CHARTS - 6.0L DIESEL if a driveability concern exist.
  2. R2 CHECK THE IPR SOLENOID RESISTANCE 
    NOTE: Refer to the PCM and component connector pin numbers, Figure and Figure, at the beginning of this pinpoint test.
    • Key off.
    • Disconnect the IPR.
    • Measure the resistance between the IPR solenoid pin 1, component side and the IPR solenoid pin 2, component side.

    IS THE RESISTANCE BETWEEN 3.0 AND 15.0 OHMS? 

    Yes No
    Go to  R3. INSTALL a new IPR.
  3. R3 CHECK THE IPR SYSTEM VOLTAGE 
    • Key on, engine off.
    • Measure the voltage between the IPR solenoid VPWR circuit pin 1, harness side and ground.

    IS THE VOLTAGE GREATER THAN 10.5 VOLTS? 

    Yes No
    Go to  R4. REPAIR the circuit.
  4. R4 CHECK THE IPR CONTROL CIRCUIT FOR A SHORT TO POWER 
    • Key off.
    • Disconnect the PCM engine harness connector.
    • Key on.
    • Measure the voltage between the IPR solenoid control circuit pin 2, harness side and ground.

    IS ANY VOLTAGE INDICATED? 

    Yes No
    REPAIR the circuit Go to  R5.
  5. R5 CHECK THE IPR CONTROL CIRCUIT FOR A SHORT TO GROUND 
    • Key off.
    • Measure the resistance between the IPR solenoid control circuit pin 2, harness side and ground.

    IS THE RESISTANCE GREATER THAN 10,000 OHMS? 

    Yes No
    Go to  R6. REPAIR the circuit.
  6. R6 CHECK THE IPR CONTROL CIRCUIT FOR AN OPEN 
    • Measure the resistance between the PCM engine harness connector pin 2, harness side and the IPR solenoid control circuit pin 2, harness side.

    IS THE RESISTANCE LESS THAN 5 OHMS? 

    Yes No
    INSTALL a new PCM. REPAIR the circuit.
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