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Home › Infiniti › 2021 › Q60 Pure, AWD › Repair and Diagnosis › Engine Performance › System › Engine Control System (DTCS) (6 Of 7) › Engine (ECM) › DTC P2565: WASTEGATE Control Valve Position Sensor › DTC Diagnosis Procedure

DTC Diagnosis Procedure

  1. CHECK DTC PRIORITY 

    If DTC P2565 is displayed with DTC P0643, first perform the confirmation procedure (trouble diagnosis) for DTC P0643.

    Is applicable DTC detected?

    YES

    Perform diagnosis for P0643. Refer to DTC Description .

    NO

    GO TO 2.

  2. CHECK WASTEGATE CONTROL VALVE POSITION SENSOR POWER SUPPLY 
    1. Turn ignition switch OFF.
    2. Disconnect electric wastegate control actuator (bank 1) harness connector.
    3. Turn ignition switch ON.
    4. Check the voltage between electric wastegate control actuator (bank 1) harness connector and ground.

      +

      -

      Voltage

      (Approx.)

      Electric wastegate control actuator (bank 1)

      Connector

      Terminal

      F139

      3

      Ground

      5 V

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    GO TO 3.

  3. CHECK WASTEGATE CONTROL VALVE POSITION SENSOR POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between electric wastegate control actuator (bank 1) harness connector and ECM harness connector.

      Electric wastegate control actuator (bank 1)

      ECM

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      F139

      3

      F142

      130

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

    Is the inspection result normal?

    YES

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

    NO

    Repair or replace error-detected parts.

  4. CHECK WASTEGATE CONTROL VALVE POSITION SENSOR GROUND CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect ECM harness connector.
    3. Check the continuity between electric wastegate control actuator (bank 1) harness connector and ECM harness connector.

      Electric wastegate control actuator (bank 1)

      ECM

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      F139

      2

      F142

      99

      Existed
    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 WASTEGATE CONTROL VALVE POSITION SENSOR INPUT SIGNAL CIRCUIT 
    1. Check the continuity between electric wastegate control actuator (bank 1) harness connector and ECM harness connector.

      Electric wastegate control actuator (bank 1)

      ECM

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      F139

      1

      F142

      118

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

    Is the inspection result normal?

    YES

    GO TO 6.

    NO

    Repair or replace error-detected parts.

  6. CHECK ELECTRIC WASTEGATE CONTROL ACTUATOR (BANK 1) 

    Check the electric wastegate control actuator (bank 1). Refer to Component Inspection .

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace turbocharger assembly [do not replace electric wastegate control actuator (bank 1) only]. Refer to TURBOCHARGER : Removal & Installation .

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