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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 501 (Engine Control System (DTC/Circuit Diagnosis) (2 Of 3)) >> DTC/Circuit Diagnosis >> DTC P0444: EVAP Canister Purge Volume Control Solenoid Valve >> DTC Diagnosis Procedure

DTC Diagnosis Procedure

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY 
    1. Turn ignition switch OFF.
    2. Disconnect EVAP canister purge volume control solenoid valve harness connector.
    3. Turn ignition switch ON.
    4. Check the voltage between EVAP canister purge volume control solenoid valve harness connector and ground.

      +

      -

      Voltage

      (Approx.)

      EVAP canister purge volume control solenoid valve

      Connector

      Terminal

      F15

      2

      Ground

      Battery voltage

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    GO TO 2.

  2. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect IPDM E/R harness connector.
    3. Check the continuity between EVAP canister purge volume control solenoid valve harness connector and IPDM E/R harness connector.

      +

      -

      Continuity

      EVAP canister purge volume control solenoid valve

      IPDM E/R

      Connector

      Terminal

      Connector

      Terminal

      F15

      2

      E119

      4

      Existed
    4. Also check harness for short to ground.

    Is the inspection result normal?

    YES

    Perform the trouble diagnosis for power supply circuit.

    NO

    Repair or replace error-detected parts.

  3. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between EVAP canister purge volume control solenoid valve harness connector and ECM harness connector.

      +

      -

      Continuity

      EVAP canister purge volume control solenoid valve

      ECM

      Connector

      Terminal

      Connector

      Terminal

      F15

      1

      F54

      54

      Existed
    4. Also check harness for short to power.

    Is the inspection result normal?

    YES

    SYMBOL With CONSULT: GO TO 4.

    YES

    SYMBOL Without CONSULT: GO TO 5.

    NO

    Repair or replace error-detected parts.

  4. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION 

    SYMBOL With CONSULT

    1. Reconnect all harness connectors disconnected.
    2. Start engine.
    3. Perform "PURG VOL CONT/V" in "ACTIVE TEST" mode of "ENGINE" using CONSULT.
    4. Check that engine speed varies according to the valve opening.

    Does engine speed vary according to the valve opening?

    YES

    Check intermittent incident. Refer to Intermittent Incident .

    NO

    GO TO 5.

  5. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE 

    Check the EVAP canister purge volume control solenoid valve. Refer to Component Inspection .

    Is the inspection result normal?

    YES

    Check intermittent incident. Refer to Intermittent Incident .

    NO

    Replace EVAP canister purge volume control solenoid valve. Refer to Exploded View .

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