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Home >> Nissan-Datsun >> 2009 >> Rogue SL, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Except CALIFORNIA) >> Component Diagnosis >> P0451 EVAP Control System Pressure Sensor >> Diagnosis Procedure
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Diagnosis Procedure

  1. CHECK GROUND CONNECTION
    1. Turn ignition switch OFF.
    2. Check ground connection E21. Refer to Ground Inspection in "CIRCUIT INSPECTION ".

      Is the inspection result normal? 

      YES: GO TO 2.

      NO: Repair or replace ground connection.

  2. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR FOR WATER
    1. Disconnect EVAP control system pressure sensor harness connector.
    2. Check sensor harness connector for water.

      Water should not exist. 

      Is the inspection result normal? 

      YES: GO TO 3.

      NO: Repair or replace harness connector.

  3. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT
    1. Turn ignition switch ON.
    2. Check the voltage between EVAP control system pressure sensor harness connector and ground.
      CONNECTOR VOLTAGE REFERENCE CHART

      EVAP control system pressure sensor Ground Voltage
      Connector Terminal
      B47 3 Ground Approx. 5 V

      Is the inspection result normal? 

      YES: GO TO  8.

      NO: GO TO 4.

  4. CHECK SENSOR POWER SUPPLY CIRCUIT

    Check harness for short to power and short to ground, between the following terminals.

    CONNECTOR TERMINAL REFERENCE

    ECM Sensor
    Connector Terminal Name Connector Terminal
    F8 72 Refrigerant pressure sensor E49 3
    76 CKP sensor (POS) F20 1
    E10 87 APP sensor E110 5
    91 EVAP control system pressure sensor B47 3

    Is the inspection result normal? 

    YES: GO TO 5.

    NO: Repair short to ground or short to power in harness or connectors.

  5. CHECK COMPONENT

    Check the following.

    • Crankshaft position sensor (POS) (Refer to "COMPONENT INSPECTION ".)
    • Refrigerant pressure sensor (Refer to "DIAGNOSIS PROCEDURE ".)

      Is the inspection result normal? 

      YES: GO TO 6.

      NO: Replace malfunctioning component.

  6. CHECK APP SENSOR

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: GO TO  9.

    NO: GO TO 7.

  7. REPLACE ACCELERATOR PEDAL ASSEMBLY
    1. Replace accelerator pedal assembly. Refer to "REMOVAL AND INSTALLATION ".
    2. Go to "SPECIAL REPAIR REQUIREMENT ".

    INSPECTION END

  8. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR

    Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: GO TO 9.

    NO: Replace EVAP control system pressure sensor.

  9. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    INSPECTION END

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