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Home >> Nissan-Datsun >> 2019 >> Altima Edition ONE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Control System (DTC/Circuit Diagnosis) (Pr25DD) (2 Of 4)) >> DTC/Circuit Diagnosis >> DTC P0453: EVAP Control System Pressure Sensor >> DTC Diagnosis Procedure >> PR25DD engine

PR25DD engine

WARNING: This page is about a different variant/trim than selected.
  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 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

      B63 *1

      B64 *2

      3

      Ground

      5 V

      *1: Without all wheel drive

      *2: With all wheel drive

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    GO TO 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

      B63 *1

      B64 *2

      3

      E31

      135

      Existed

      *1: Without all wheel drive

      *2: With all wheel drive

    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

      B63 *1

      B64 *2

      1

      E31

      158

      Existed

      *1: Without all wheel drive

      *2: With all wheel drive

    4. Also check harness for short to power.

    Is the inspection result normal?

    YES

    GO TO 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

      B63 *1

      B64 *2

      2

      E31

      131

      Existed

      *1: Without all wheel drive

      *2: With all wheel drive

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

    Is the inspection result normal?

    YES

    GO TO 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 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 8.

    NO

    Replace EVAP canister vent control valve. Refer to Removal and Installation (AWD) or Removal and Installation (FWD).

  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. Refer to Removal and Installation (AWD) or Removal and Installation (FWD).

  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.
      G04160077Courtesy of NISSAN NORTH AMERICA, INC.

    Does water drain from EVAP canister?

    YES

    GO TO 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 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 (AWD) or Removal and Installation (FWD).

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