ECD SYSTEM (w/o DPF), Diagnostic DTC:P1258, P1259, P1260, P1262, P1263, P2563, P2564, P2565, P2588, P2589

DTC Code DTC Name
P1258 VNT Position Sensor Range/Performance Bank 2 Sensor 1
P1259 VNT Position Sensor Low Bank 2 Sensor 1
P1260 VNT Position Sensor High Bank 2 Sensor 1
P1262 VNT Position Sensor Low Bank 2 Sensor 2
P1263 VNT Position Sensor High Bank 2 Sensor 2
P2563 Turbocharger/Supercharger Boost Control Position Sensor "A" Circuit Range/Performance
P2564 Turbocharger/Supercharger Boost Control Position Sensor "A" Circuit Low
P2565 Turbocharger/Supercharger Boost Control Position Sensor "A" Circuit High
P2588 Turbocharger/Supercharger Boost Control Position Sensor "B" Circuit Low
P2589 Turbocharger/Supercharger Boost Control Position Sensor "B" Circuit High

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 turbo motor driver. The turbo motor driver determines the actual nozzle vane position from the electric signals in order to calculate the target nozzle vane position.

A015CYBE02
P1258
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Ignition switch ON for 1 second The difference between VTI2 and VTA2 voltage is 0.8 V or more for 0.5 seconds (1 trip detection logic). Nozzle vane position sensor (turbocharger sub-assembly)
P1259
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Ignition switch ON for 1 second VTI2 voltage is 0.5 V or less for 0.5 seconds (1 trip detection logic).

  • Nozzle vane position sensor (turbocharger sub-assembly)

  • Open or short in nozzle vane position sensor circuit

  • Turbo motor driver
P1260
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Ignition switch ON for 1 second VTI2 voltage is 4.5 V or more for 0.5 seconds (1 trip detection logic).

  • Nozzle vane position sensor (turbocharger sub-assembly)

  • Open or short in nozzle vane position sensor circuit

  • Turbo motor driver
P1262
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Ignition switch ON for 1 second VTA2 voltage is 0.5 V or less for 0.5 seconds (1 trip detection logic).

  • Nozzle vane position sensor (turbocharger sub-assembly)

  • Open or short in nozzle vane position sensor circuit

  • Turbo motor driver
P1263
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Ignition switch ON for 1 second VTA2 voltage is 4.5 V or more for 0.5 seconds (1 trip detection logic).

  • Nozzle vane position sensor (turbocharger sub-assembly)

  • Open or short in nozzle vane position sensor circuit

  • Turbo motor driver
P2563
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Ignition switch ON for 1 second The difference between VTA1 and VTA voltage is 0.8 V or more for 0.5 seconds (1 trip detection logic). Nozzle vane position sensor (turbocharger sub-assembly)
P2564
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Ignition switch ON for 1 second VTA1 voltage is 0.5 V or less for 0.5 seconds (1 trip detection logic).

  • Nozzle vane position sensor (turbocharger sub-assembly)

  • Open or short in nozzle vane position sensor circuit

  • Turbo motor driver
P2565
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Ignition switch ON for 1 second VTA1 voltage is 4.5 V or more for 0.5 seconds (1 trip detection logic).

  • Nozzle vane position sensor (turbocharger sub-assembly)

  • Open or short in nozzle vane position sensor circuit

  • Turbo motor driver
P2588
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Ignition switch ON for 1 second VTA voltage is 0.5 V or less for 0.5 seconds (1 trip detection logic).

  • Nozzle vane position sensor (turbocharger sub-assembly)

  • Open or short in nozzle vane position sensor circuit

  • Turbo motor driver
P2589
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Ignition switch ON for 1 second VTA voltage is 4.5 V or more for 0.5 seconds (1 trip detection logic).

  • Nozzle vane position sensor (turbocharger sub-assembly)

  • Open or short in nozzle vane position sensor circuit

  • Turbo motor driver

Tech Tips

If DTC P1258, P1259, P1260, P1262, P1263, P2563, P2564, P2565, P2588 and/or P2589 is stored, the following symptoms may appear:

Stuck open malfunction:


  • - Lack of power

  • - Vehicle surge or hesitation under light or medium load

  • - White smoke

WIRING DIAGRAM

A0157NVE03

INSPECTION PROCEDURE

Tech Tips

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.

PROCEDURE


  1. INSPECT TURBO MOTOR DRIVER (for Bank 1 and Bank 2)


    1. Remove the rear fender splash shield sub-assembly RH.

    2. Remove the front fender liner LH.

    3. Connect the intelligent tester to the DLC3.

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

    5. Enter the following menus: Powertrain / Engine / DTC.

    6. Read the DTCs.

      Tech Tips

      Record the output DTCs.

    7. Clear the DTCs Click here.

    8. Turn the ignition switch off.

    9. A015CO3

      Interchange the connectors for the turbo motor driver of bank 1 and bank 2.

    10. Turn the ignition switch to ON for 1 second.

    11. Enter the following menus: Powertrain / Engine / DTC.

    12. Read the DTCs.

      Result
      Display (DTC Output) Proceed to
      DTCs change B
      DTCs do not change A

    B

    REPLACE TURBO MOTOR DRIVER (for Bank 1 or Bank 2) Click here

    A

  2. CHECK HARNESS AND CONNECTOR (TURBO MOTOR DRIVER - NOZZLE VANE POSITION SENSOR)


    1. A0158JAE02

      Disconnect the nozzle vane position sensor connector.

    2. Disconnect the turbo motor driver connector.

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

      Standard Resistance (Check for Open)
      for Bank 1
      Tester Connection Condition Specified Condition
      Turbo motor driver connector-5 (VTAI) - C89-1 (VTA1) Always Below 1 Ω
      Turbo motor driver connector-2 (VNE2) - C89-2 (VNE2) Always Below 1 Ω
      Turbo motor driver connector-8 (VNVC) - C89-3 (VNVC) Always Below 1 Ω
      Turbo motor driver connector-6 (VTA) - C89-4 (VTA) Always Below 1 Ω
      Turbo motor driver connector-1 (E2S) - C89-5 (E2S) Always Below 1 Ω
      Turbo motor driver connector-7 (VCS) - C89-6 (VCS) Always Below 1 Ω
      for Bank 2
      Tester Connection Condition Specified Condition
      Turbo motor driver connector-5 (VTI2) - z66-1 (VTI2) Always Below 1 Ω
      Turbo motor driver connector-2 (VE2) - z66-2 (VE2) Always Below 1 Ω
      Turbo motor driver connector-8 (VNC2) - z66-3 (VNC2) Always Below 1 Ω
      Turbo motor driver connector-6 (VTA2) - z66-4 (VTA2) Always Below 1 Ω
      Turbo motor driver connector-1 (E2S2) - z66-5 (E2S2) Always Below 1 Ω
      Turbo motor driver connector-7 (VCS2) - z66-6 (VCS2) Always Below 1 Ω
      Standard Resistance (Check for Short)
      for Bank 1
      Tester Connection Condition Specified Condition
      Turbo motor driver connector-5 (VTAI) or C89-1 (VTA1) - Body ground Always 10 kΩ or higher
      Turbo motor driver connector-2 (VNE2) or C89-2 (VNE2) - Body ground Always 10 kΩ or higher
      Turbo motor driver connector-8 (VNVC) or C89-3 (VNVC) - Body ground Always 10 kΩ or higher
      Turbo motor driver connector-6 (VTA) or C89-4 (VTA) - Body ground Always 10 kΩ or higher
      Turbo motor driver connector-1 (E2S) or C89-5 (E2S) - Body ground Always 10 kΩ or higher
      Turbo motor driver connector-7 (VCS) or C89-6 (VCS) - Body ground Always 10 kΩ or higher
      for Bank 2
      Tester Connection Condition Specified Condition
      Turbo motor driver connector-5 (VTI2) or z66-1 (VTI2) - Body ground Always 10 kΩ or higher
      Turbo motor driver connector-2 (VE2) or z66-2 (VE2) - Body ground Always 10 kΩ or higher
      Turbo motor driver connector-8 (VNC2) or z66-3 (VNC2) - Body ground Always 10 kΩ or higher
      Turbo motor driver connector-6 (VTA2) or z66-4 (VTA2) - Body ground Always 10 kΩ or higher
      Turbo motor driver connector-1 (E2S2) or z66-5 (E2S2) - Body ground Always 10 kΩ or higher
      Turbo motor driver connector-7 (VCS2) or z66-6 (VCS2) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  3. REPLACE TURBOCHARGER SUB-ASSEMBLY (for Bank 1 or Bank 2) (NOZZLE VANE POSITION SENSOR)


    1. Replace the turbocharger sub-assembly (for Bank 1 or Bank 2) Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  4. REPLACE TURBO MOTOR DRIVER (for Bank 1 or Bank 2)


    1. Replace the turbo motor driver (for Bank 1 or Bank 2) Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  5. REPAIR OR REPLACE HARNESS OR CONNECTOR


    NEXT

  6. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the intelligent tester to the DLC3.

    2. Clear the DTCs Click here.

    3. Turn the ignition switch off.

    4. Turn the ignition switch off and leave the vehicle for 15 seconds.

    5. Turn the ignition switch to ON for 1 second.

    6. Confirm that the DTC is not output again.

      Tech Tips

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


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

      2. Input DTC P1258, P1259, P1260, P1262, P1263, P2563, P2564, P2565, P2588 and/or P2589.

      3. Check that STATUS is NORMAL. If STATUS is INCOMPLETE or UNKNOWN, idle the engine.


    NEXT

    END