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ECD SYSTEM(w/ DPF), 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.

Table 1. P2564
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Ignition switch ON for 3 seconds or more.

Nozzle vane position sensor (turbocharger sub-assembly) output voltage is 0.25 V or less for 3 seconds.

(1 trip detection logic)

  • Open or short in nozzle vane position sensor (turbocharger sub-assembly) circuit

  • Nozzle vane position sensor (turbocharger sub-assembly)

  • ECM
Table 2. P2565
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Ignition switch ON for 3 seconds or more.

Nozzle vane position sensor (turbocharger sub-assembly) output voltage is 4.85 V for 3 seconds or more.

(1 trip detection logic)

  • Open or short in nozzle vane position sensor (turbocharger sub-assembly) circuit

  • Nozzle vane position sensor (turbocharger sub-assembly)

  • ECM
Tip:

  • If DTC P2564 or P2565 is stored, the following symptoms may appear:


    • Lack of power

Table 3. *a Nozzle Vane Position Sensor (Turbocharger Sub-Assembly)
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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

When replacing the ECM, the ECM needs Registration and Initialization (Click here).

Tip:

  • When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the intelligent tester. Then after installing the new ECM, perform all of the initialization/registrations for the "Learning Values Write" function by following the instructions shown on the tester display.

  • Read freeze frame data using the intelligent tester. 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 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
      B36-3 (VTA1) - B21-38 (VTAI) Always Below 1 Ω
      B36-1 (VNVC) - B21-37 (VNVC) Always Below 1 Ω
      B36-2 (VNE2) - B21-36 (VNE2) Always Below 1 Ω
      B36-3 (VTA1) or B21-38 (VTAI) - Body ground Always 10 kΩ or higher
      B36-1 (VNVC) or B21-37 (VNVC) - Body ground Always 10 kΩ or higher
      B36-2 (VNE2) or B21-36 (VNE2) - Body ground Always 10 kΩ or higher

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    CHECK HARNESS AND CONNECTOR (VC VOLTAGE)


    1. A01VGMNE01

      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 Switch Condition Specified Condition
      B36-1 (VNVC) - B36-2 (VNE2) Ignition switch ON 4.5 to 5.5 V
      Table 4. Text in Illustration
      *a

      Front view of wire harness connector

      (to Nozzle Vane Position Sensor)

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    REPLACE TURBOCHARGER SUB-ASSEMBLY (NOZZLE VANE POSITION SENSOR)


    1. Replace the turbocharger sub-assembly (Click here).

    2. Turn the ignition switch to ON.

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


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    CHECK WHETHER DTC OUTPUT RECURS (DTC P2564 OR P2565)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON and turn the tester on.

    3. Clear the DTCs (Click here).

    4. Turn the ignition switch off.

    5. Turn the ignition switch to ON.

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

    7. Turn the ignition switch to ON and wait for 10 seconds or more.

    8. Enter the following menus: Powertrain / Engine and ECT / DTC.

    9. Read the DTCs.

      Table 5. Result
      Result Proceed to
      DTC P2564 or P2565 A
      No DTC output B

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    REPLACE ECM


    1. Replace the ECM (Click here).


  6. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR


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    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON and turn the tester on.

    3. Clear the DTCs (Click here).

    4. Turn the ignition switch off.

    5. Turn the ignition switch to ON.

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

    7. Turn the ignition switch to ON and wait for 10 seconds or more.

    8. Enter the following menus: Powertrain / Engine and ECT / DTC.

    9. Confirm that the DTC is not output again.


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