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Home >> Nissan-Datsun >> 2016 >> Sentra FE+S >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTCS) (2 Of 3) >> DTC/Circuit Diagnosis >> DTC P0453: EVAP Control System Pressure Sensor >> Diagnosis Procedure >> Diagnostic Test
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Diagnostic Test

  1. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR FOR WATER

    1. Turn ignition switch OFF.
    2. Disconnect EVAP control system pressure sensor harness connector.
    3. Check sensor harness connector for water.
      Water should not exist.

    Is the inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    Repair or replace harness connector.

  2. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY

    1. Turn ignition switch ON.
    2. Check the voltage between EVAP control system pressure sensor harness connector and ground.
      + - Voltage
      (Approx.)
      EVAP control system pressure sensor
      Connector Terminal
      B47 3 Ground 5 V

    Is the inspection result normal?

    YES 

    GO TO STEP 4  .

    NO 

    GO TO STEP 3  .

  3. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between EVAP control system pressure sensor harness connector and ECM harness connector.
      + - Continuity
      EVAP control system pressure sensor ECM
      Connector Terminal Connector Terminal
      B47 3 E16 113 Existed
    4. Also check harness for short to ground and to power.

    Is the inspection result normal?

    YES 

    Perform the trouble diagnosis for power supply circuit.

    NO 

    Repair or replace error-detected parts

  4. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between EVAP control system pressure sensor harness connector and ECM harness connector.
      + - Continuity
      EVAP control system pressure sensor ECM
      Connector Terminal Connector Terminal
      B47 1 E16 124 Existed
    4. Also check harness for short to power.

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    Repair or replace error-detected parts.

  5. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR SIGNAL CIRCUIT

    1. Check the continuity between EVAP control system pressure sensor harness connector and ECM harness connector.
      + - Continuity
      EVAP control system pressure sensor ECM
      Connector Terminal Connector Terminal
      B47 2 E16 114 Existed
    2. Also check harness for short to ground and to power.

    Is the inspection result normal?

    YES 

    GO TO STEP 6  .

    NO 

    Repair or replace error-detected parts.

  6. CHECK RUBBER TUBE

    1. Disconnect rubber tube connected to EVAP canister vent control valve.
    2. Check the rubber tube for clogging.

    Is the inspection result normal?

    YES 

    GO TO STEP 7  .

    NO 

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

  7. CHECK EVAP CANISTER VENT CONTROL VALVE

    Refer to COMPONENT INSPECTION .

    Is the inspection result normal?

    YES 

    GO TO STEP 8  .

    NO 

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

  8. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR

    Refer to COMPONENT INSPECTION .

    Is the inspection result normal?

    YES 

    GO TO STEP 9  .

    NO 

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

  9. 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.
      Fig 1: Checking EVAP Canister For Water
      G04160077Courtesy of NISSAN NORTH AMERICA, INC.

    Does water drain from EVAP canister?

    YES 

    GO TO STEP 10  .

    NO 

    Check intermittent incident. Refer to INTERMITTENT INCIDENT .

  10. 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 1.9 kg (4.2 lb). 

    Is the inspection result normal?

    YES 

    Check intermittent incident. Refer to INTERMITTENT INCIDENT .

    NO 

    GO TO STEP 11  .

  11. DETECT MALFUNCTIONING PART

    Check the following.

    • EVAP canister for damage
    • EVAP hose between EVAP canister and vehicle frame for clogging or poor connection

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

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