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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 84 (Engine Control System (DTC/Circuit Diagnosis) (1 Of 5)) >> DTC/Circuit Diagnosis >> DTC P0075: IVT Control Solenoid Valve >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY 
    1. Turn ignition switch OFF.
    2. Disconnect intake valve timing (IVT) control solenoid valve harness connector.
    3. Turn ignition switch ON.
    4. Check the voltage between intake valve timing control solenoid valve harness connector and ground with CONSULT or tester.

      DTC

      +

      -

      Voltage

      IVT control solenoid valve

      Bank

      Connector

      Terminal

      P0075

      1

      F67

      1

      Ground

      Battery voltage

      P0081

      2

      F66

      1

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

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

  2. CHECK IVT CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect IPDM E/R harness connector.
    3. Check the continuity between IVT control solenoid valve harness connector and IPDM E/R harness connector.

      DTC

      IVT control solenoid valve

      IPDM E/R

      Continuity

      Bank

      Connector

      Terminal

      Connector

      Terminal

      P0075

      1

      F67

      1

      F50

      59

      Existed

      P0081

      2

      F66

      1

    4. Also check harness for short to ground.

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Repair or replace error-detected parts.

  3. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between intake valve timing control solenoid valve harness connector and ECM harness connector.

      DTC

      IVT control solenoid valve

      ECM

      Continuity

      Bank

      Connector

      Terminal

      Connector

      Terminal

      P0075

      1

      F67

      2

      F14

      117

      Existed

      P0081

      2

      F66

      2

      119

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

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

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

  4. CHECK IVT CONTROL SOLENOID VALVE 

    Check the IVT control solenoid valve. Refer to Component Inspection (IVT Control Solenoid Valve) .

    Is the inspection result normal?

    YES

    GO TO 5.

    NO

    Replace IVT control solenoid valve. Refer to Exploded View .

  5. CHECK IVT INTERMEDIATE LOCK CONTROL SOLENOID VALVE POWER SUPPLY 
    1. Disconnect IVT intermediate lock control solenoid valve harness connector.
    2. Turn ignition switch ON.
    3. Check the voltage between IVT intermediate lock control solenoid valve harness connector and ground.

      DTC

      +

      -

      Voltage

      IVT intermediate lock control solenoid valve

      Bank

      Connector

      Terminal

      P0075

      1

      F76

      1

      Ground

      Battery voltage

      P0081

      2

      F77

      1

    Is the inspection result normal?

    YES

    GO TO 7.

    NO

    GO TO 6.

  6. CHECK IVT INTERMEDIATE LOCK CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect IPDM E/R harness connector.
    3. Check the continuity between IVT intermediate lock control solenoid valve harness connector and IPDM E/R harness connector.

      DTC

      IVT intermediate lock control solenoid valve

      IPDM E/R

      Continuity

      Bank

      Connector

      Terminal

      Connector

      Terminal

      P0075

      1

      F76

      1

      F50

      59

      Existed

      P0081

      2

      F77

      1

    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.

  7. CHECK IVT INTERMEDIATE LOCK CONTROL SOLENOID VALVE GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between IVT intermediate lock control solenoid valve harness connector and ECM harness connector.

      DTC

      IVT intermediate lock control solenoid valve

      ECM

      Continuity

      Bank

      Connector

      Terminal

      Connector

      Terminal

      P0075

      1

      F76

      2

      F14

      118

      Existed

      P0081

      2

      F77

      2

      120

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

    Is the inspection result normal?

    YES

    GO TO 8.

    NO

    Repair or replace error-detected parts.

  8. CHECK IVT INTERMEDIATE LOCK CONTROL SOLENOID VALVE 

    Check the IVT intermediate lock control solenoid valve. Refer to Component Inspection (IVT Intermediate Lock Control Solenoid Valve) .

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace IVT intermediate lock control solenoid valve. Refer to Exploded View .