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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 2377 (Engine Control System - DTCS P0222 To P0603) >> DTC P0453: EVAP Control System Pressure Sensor >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK GROUND CONNECTIONS
    1. Turn ignition switch OFF.
    2. Loosen and retighten three ground screws on the body. Refer to "GROUND INSPECTION ".
      Fig 1: Checking Ground Connections
      G07152651Courtesy of NISSAN NORTH AMERICA, INC.

      OK or NG 

      OK: GO TO 2.

      NG: Repair or replace ground connections.

  2. CHECK CONNECTOR
    1. Disconnect EVAP control system pressure sensor (2) harness connector.
      • Fuel filler pipe (1)
      • EVAP canister vent control valve (3)
      • EVAP canister (4)
      • Drain filter (5)
      • <=: Vehicle front
    2. Check sensor harness connector for water.

      Water should not exist. 

      Fig 2: Identifying Fuel Filler Pipe, EVAP Control System Pressure Sensor, Evap Canister And Drain Filter
      G07152652Courtesy of NISSAN NORTH AMERICA, INC.

      OK or NG 

      OK: GO TO 3.

      NG: Repair or replace harness connector.

  3. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT
    1. Turn ignition switch ON.
    2. Check voltage between EVAP control system pressure sensor terminal 3 and ground with CONSULT-III or tester.

      Voltage: Approximately 5V 

      Fig 3: Checking Voltage Between EVAP Control System Pressure Sensor Terminal 3 And Ground
      G07152653Courtesy of NISSAN NORTH AMERICA, INC.

      OK or NG 

      OK: GO TO  5.

      NG: GO TO 4.

  4. DETECT MALFUNCTIONING PART

    Check the following.

    • Harness connectors C1, E41
    • Harness connectors E5, F14
    • Harness for open or short between EVAP control system pressure sensor and ECM

      Repair open circuit or short to ground or short to power in harness or connectors.

  5. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check harness continuity between EVAP control system pressure sensor terminal 1 and ECM terminal 67.

      Refer to WIRING DIAGRAM .

      Continuity should exist. 

    4. Also check harness for short to ground and short to power.

      OK or NG 

      OK: GO TO  7.

      NG: GO TO 6.

  6. DETECT MALFUNCTIONING PART

    Check the following.

    • Harness connectors C1, E41
    • Harness connectors E5, F14
    • Harness for open or short between EVAP control system pressure sensor and ECM

      Repair open circuit or short to ground or short to power in harness or connectors.

  7. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
    1. Check harness continuity between ECM terminal 32 and EVAP control system pressure sensor terminal 2.

      Refer to WIRING DIAGRAM .

      Continuity should exist. 

    2. Also check harness for short to ground and short to power.

      OK or NG 

      OK: GO TO  9.

      NG: GO TO 8.

  8. DETECT MALFUNCTIONING PART

    Check the following.

    • Harness connectors C1, E41
    • Harness connectors E5, F14
    • Harness for open or short between EVAP control system pressure sensor and ECM

      Repair open circuit or short to ground or short to power in harness or connectors.

  9. CHECK RUBBER TUBE
    1. Disconnect rubber tube connected to EVAP canister vent control valve.
    2. Check the rubber tube for clogging, vent and kinked.

      OK or NG 

      OK: GO TO 10.

      NG: Clean the rubber tube using an air blower, repair or replace rubber tube.

  10. CHECK EVAP CANISTER VENT CONTROL VALVE

    Refer to "COMPONENT INSPECTION ".

    OK or NG 

    OK: GO TO 11.

    NG: Replace EVAP canister vent control valve. Refer to "REMOVAL AND INSTALLATION ".

  11. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR

    Refer to "COMPONENT INSPECTION ".

    OK or NG 

    OK: GO TO 12.

    NG: Replace EVAP control system pressure sensor. Refer to "REMOVAL AND INSTALLATION ".

  12. CHECK DRAIN FILTER

    Refer to "COMPONENT INSPECTION ".

    OK or NG 

    OK: GO TO 13.

    NG: Replace drain filter.

  13. CHECK IF EVAP CANISTER IS SATURATED WITH WATER
    1. Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor attached.
    2. Check if water will drain from the EVAP canister.

      Yes or No 

      Yes: GO TO 14.

      No: GO TO  16.

      Fig 4: Checking EVAP Canister For Water Drain
      G07152654Courtesy of NISSAN NORTH AMERICA, INC.
  14. CHECK EVAP CANISTER

    Weigh the EVAP canister with the EVAP canister vent control valve and EVAP control system pressure sensor attached.

    The weight should be less than 2.0 kg (4.4 lb). 

    OK or NG 

    OK: GO TO  16.

    NG: GO TO 15.

  15. DETECT MALFUNCTIONING PART

    Check the following.

    • EVAP canister for damage
    • EVAP hose between EVAP canister and drain filter for clogging or poor connection

      Repair hose or replace EVAP canister. Refer to "REMOVAL AND INSTALLATION ".

  16. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    INSPECTION END 

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