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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Engine Control System (DTC/Circuit Diagnosis) (5.6L) (4 Of 6)) >> DTC/Circuit Diagnosis >> DTC P0454: EVAP System Pressure Sensor >> DTC Diagnosis Procedure

DTC Diagnosis Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR 
    1. Disconnect EVAP control system pressure sensor harness connector.
    2. Check that water is not inside connectors.

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair or replace harness connector.

  2. 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.

      EVAP control system pressure sensor

      Ground

      Voltage (V)

      Connector

      Terminal

      C32

      3

      Ground

      Approx. 5 V

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    GO TO 3.

  3. CHECK SENSOR POWER SUPPLY 3 CIRCUIT 

    Perform DTC Diagnosis Procedure .

    Is the inspection result normal?

    YES

    Perform the trouble diagnosis for power supply circuit. Refer to DTC Diagnosis Procedure .

    NO

    Repair or replace error-detected parts.

  4. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR 

    Refer to Component Inspection (EVAP Control System Pressure Sensor) .

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace EVAP control system pressure sensor.