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ECD SYSTEM(w/ Urea SCR System), Diagnostic DTC:P2564, P2565

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DTC Code DTC Name
P2564 Turbocharger/Supercharger Boost Control Position Sensor "A" Circuit Low
P2565 Turbocharger/Supercharger Boost Control Position Sensor "A" Circuit High
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DESCRIPTION

The variable nozzle vane type turbocharger consists primarily of a compressor wheel, turbine wheel, nozzle vane, unison ring, DC motor and nozzle vane position sensor.

The nozzle vane position sensor consists of a Hall IC and a magnetic yoke that rotates in unison with the movement of the linkage that actuates the nozzle vane. The nozzle vane position sensor converts the changes in the magnetic flux that are caused by the rotation of the DC motor (hence, the rotation of the magnetic yoke) into electric signals, and outputs them to the ECM. The ECM determines the actual nozzle vane position from the electric signals in order to calculate the target nozzle vane position.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P2564 Turbocharger/Supercharger Boost Control Position Sensor "A" Circuit Low VNA voltage is 0.1 V or less for 2.1 seconds (1 trip detection logic).

  • Nozzle vane position sensor (turbocharger nozzle vane control actuator)

  • Open or short in nozzle vane position sensor circuit

  • ECM

 Comes on DTC stored
P2565 Turbocharger/Supercharger Boost Control Position Sensor "A" Circuit High VNA voltage is 4.9 V or higher for 2.1 seconds (1 trip detection logic).

  • Nozzle vane position sensor (turbocharger nozzle vane control actuator)

  • Open or short in nozzle vane position sensor circuit

  • ECM

 Comes on DTC stored
Tip:

If DTC P2564 and/or P2565 is stored due to the nozzle vane being stuck open, the following symptoms may appear:


  • - Lack of power

  • - Vehicle surge or hesitation under light or medium load

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CONFIRMATION DRIVING PATTERN

DTC No. DTC Detection Drive Pattern

P2564

P2565

 Ignition switch ON for 2 seconds or more
Table 1. *a Nozzle Vane Position Sensor (Turbocharger Nozzle Vane Control Actuator)
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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

After replacing the ECM, the new ECM needs registration (Click here ) and initialization (Click here).

Tip:

Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.

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PROCEDURE


  1. Click here

    CHECK TERMINAL VOLTAGE (POWER SOURCE OF NOZZLE VANE POSITION SENSOR)


    1. B0024RLC29
      *a

      Front view of wire harness connector

      (to Nozzle Vane Position Sensor)

      Disconnect the nozzle vane position sensor connector.

    2. Turn the ignition switch to ON.

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      C93-1 (VNVC) - C93-2 (VNE2) Ignition switch ON 4.5 to 5.5 V
      Result
      Proceed to
      OK
      NG

  2. Click here

    INSPECT NOZZLE VANE POSITION SENSOR (VNA VOLTAGE)


    1. B002636C41
      *a

      Component with harness connected

      (ECM)

      Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      C59-23 (VNA) - C59-22 (VNE2) Ignition switch ON 2.3 to 2.7 V
      Result
      Proceed to
      OK
      NG

  3. Click here

    CHECK HARNESS AND CONNECTOR (ECM - NOZZLE VANE POSITION SENSOR)


    1. Disconnect the nozzle vane position sensor connector.

    2. Disconnect the ECM connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      C93-3 (VTA1) - C59-23 (VNA) Always Below 1 Ω
      C93-2 (VNE2) - C59-22 (VNE2) Always Below 1 Ω
      C93-3 (VTA1) or C59-23 (VNA) - Body ground and other terminals Always 10 kΩ or higher
      C93-2 (VNE2) or C59-22 (VNE2) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

  4. Click here

    CHECK ECM (CHECK RESISTANCE)


    1. Disconnect the nozzle vane position sensor connector.

    2. B0024RLC30
      *a

      Front view of wire harness connector

      (to Nozzle Vane Position Sensor)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      C93-1 (VNVC) - C93-3 (VTA1) Ignition switch off No short or open circuit
      C93-3 (VTA1) - C93-2 (VNE2) Ignition switch off No short or open circuit
      Result
      Proceed to
      OK
      NG

  5. Click here

    REPLACE TURBOCHARGER NOZZLE VANE CONTROL ACTUATOR


    1. Replace the turbocharger nozzle vane control actuator.

      Click here

      Result
      Proceed to
      NEXT

  6. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the harness or connector.

      Result
      Proceed to
      NEXT

  7. Click here

    CHECK ECM (POWER SOURCE OF NOZZLE VANE POSITION SENSOR)


    1. B002636C42
      *a

      Component with harness connected

      (ECM)

      Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      C59-30 (VNVC) - C59-22 (VNE2) Ignition switch ON 4.5 to 5.5 V
      Result
      Proceed to
      OK
      NG

  8. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the harness or connector.

      Result
      Proceed to
      NEXT

  9. Click here

    REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

  10. Click here

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the GTS to the DLC3.

    2. Clear the DTCs.


      1. Powertrain > Engine > Clear DTCs


    3. Turn the ignition switch off and wait for 30 seconds or more.

    4. Turn the ignition switch to ON for 2 seconds or more.

    5. Confirm that the DTC is not output again.

      Tip:

      Perform the following procedure using the GTS to determine whether or not the DTC judgment has been carried out.


      1. Enter the following menus: Powertrain / Engine / Utility / All Readiness.


        1. Powertrain > Engine > Utility
          Tester Display
          All Readiness




      2. Input DTC P2564 and/or P2565.

      3. Check that STATUS is NORMAL. If STATUS is INCOMPLETE or N/A, idle the engine.

      Result
      Proceed to
      NEXT

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      END