ECD SYSTEM (w/ EGR Cooler Bypass Valve), Diagnostic DTC:P2006

DTC Code DTC Name
P2006 Intake Manifold Runner Control Stuck Closed (Bank 1)

DESCRIPTION

The swirl control valve is mounted on the intake manifold. The Vacuum Switching Valve (VSV) for use to change the vacuum to control the swirl control valve.

The ECM determines the opening angle of the swirl control valve, and uses the VSV for swirl control valve to change the vacuum applied to the actuator's diaphragm to open and close the swirl control valve.

DTC No. DTC Detection Condition Trouble Area
P2006

When actual intake air volume detected by MAF meter continues to be smaller than volume estimated from boost pressure and intake air temperature sensor, ECM determines that swirl control valve is stuck closed.

(1 trip detection logic)

  • VSV for swirl control valve

  • Open or short in VSV for swirl control valve circuit

  • Intake manifold (swirl control valve)

  • Electric EGR control valve assembly

  • MAF meter

  • Air cleaner

  • Air cleaner hose

  • Vacuum hose

  • ECM

WIRING DIAGRAM

A01KIN6E02

INSPECTION PROCEDURE

Note

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

Tech Tips

Read freeze frame data using the intelligent tester. Freeze frame data records the engine conditions when a malfunction is 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. CHECK OTHER DTC OUTPUT (IN ADDITION TO DTC P2006)


    1. Connect the intelligent tester to the DLC3.

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

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

    4. Read the DTCs.

      Result
      Result Proceed to
      P2006 A
      P2006 and other DTCs B

      Tech Tips

      When MAP, MAF, Intake Air, and/or Intake Air Temp (Turbo)-related DTCs are stored along with P2006, perform troubleshooting for those DTCs first.

      MAP-related DTCs: P0106, P0107 and P0108 Click here.

      MAF-related DTCs: P0101, P0102 and P0103 Click here.

      Intake Air-related DTCs: P0112 and P0113 Click here.

      Intake Air Temp (Turbo)-related DTCs: P1496 and P1497 Click here.


    B

    GO TO DTC CHART Click here

    A

  2. CHECK AIR INTAKE SYSTEM


    1. Check for air leaks and blockages between the air cleaner case and turbocharger, and between the turbocharger and intake manifold.

      Result
      Result Proceed to
      Leaks and/or blockages exist in the intake system A
      No leaks or blockages in the intake system B

      Tech Tips


      • Inspect the air intake system, especially hoses and pipes between the air cleaner and turbocharger.

      • Check for abnormal disconnections, pipe and hose squashing, and any damage in the intake system.

      • Using your hand, check whether the pipes and hoses in the intake system are securely connected.

      • By applying soapy water and revving up the engine, air leaks from the intake system can be checked by checking for bubbles.

      • Check for any modifications in the intake system made by the user.


    B

    CHECK INTAKE MANIFOLD (SWIRL CONTROL VALVE OPERATION) Click here

    A

  3. REPAIR OR REPLACE AIR INTAKE SYSTEM


    1. Repair or replace the malfunctioning part in the air intake system.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED (IN ADDITION TO DTC P2006) Click here

  4. CHECK INTAKE MANIFOLD (SWIRL CONTROL VALVE OPERATION)


    1. A01KFULE02
      Text in Illustration
      *1 Swirl Control Valve

      Check the movement of the swirl control valve immediately after starting the engine.

      OK
      Swirl control valve rod operates smoothly.

    NG

    CHECK CONNECTION OF VACUUM HOSE Click here

    OK

  5. READ VALUE USING INTELLIGENT TESTER (MAF AND MAP)


    1. Connect the intelligent tester to the DLC3.

    2. Start the engine and turn the tester on.

    3. Enter the following menus: Powertrain / Engine and ECT / Data List / MAP and MAF.

    4. Take a snapshot when the engine speed is maintained at 4000 rpm with no load.

    5. Read the values of "MAP" and "MAF" in the Data List using the snapshot review function.

      Result
      Result Proceed to
      MAF 100 g/sec. or more and MAP 110 kPa or more C
      MAP less than 90 kPa B
      Except above A

    B

    CHECK TURBOCHARGER SUB-ASSEMBLY Click here

    C

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED (IN ADDITION TO DTC P2006) Click here

    A

  6. CLEAN MASS AIR FLOW METER


    1. Remove any deposits adhering to the mass air flow meter.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED (IN ADDITION TO DTC P2006) Click here

  7. CHECK TURBOCHARGER SUB-ASSEMBLY


    1. Check the turbocharger sub-assembly Click here.


    NEXT

  8. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED (IN ADDITION TO DTC P2006)


    1. Connect the intelligent tester to the DLC3.

    2. Start the engine and turn the tester on.

    3. Enter the following menus: Powertrain / Engine and ECT / Data List / MAP and MAF.

    4. Take a snapshot when the engine speed is maintained at 4000 rpm with no load.

    5. Read the values of "MAP" and "MAF" in the Data List using the snapshot review function.

      OK
      MAF is 100 g/sec. or more and MAP is 110 kPa or more.

    NEXT

    END

  9. CHECK CONNECTION OF VACUUM HOSE


    1. Check the vacuum hose connection of the swirl control valve system.


    NG

    REPAIR OR REPLACE VACUUM HOSE Click here

    OK

  10. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (ACTIVATE THE VSV FOR SWIRL CONTROL VALVE)

    A01KIFVE04
    Text in Illustration
    *1 Air
    *2 Air Filter
    *a VSV: on
    *b VSV: off

    1. Disconnect the vacuum hoses from the VSV for swirl control valve.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the ignition switch ON and turn the tester ON.

    4. Enter the following menus: Powertrain / Engine / Active Test / Activate the VSV for Swirl Control Valve.

    5. Check the VSV operation when it is operated using the intelligent tester.

      OK
      Tester Operation Specified Condition
      VSV ON Air from port E flows out through port F
      VSV OFF Air from port E flows out through air filter

    NG

    REPLACE VACUUM SWITCHING VALVE ASSEMBLY (VSV FOR SWIRL CONTROL VALVE) Click here

    OK

  11. INSPECT ELECTRIC EGR CONTROL VALVE ASSEMBLY


    1. Inspect the electric EGR control valve assembly Click here.

      Tech Tips


      • If there are any deposits adhering to the valve, clean the valve.

      • Check that the EGR valve is fully closed.


    OK

    INSPECT INTAKE MANIFOLD (SWIRL CONTROL VALVE OPERATION) Click here

    NG

    REPLACE ELECTRIC EGR CONTROL VALVE ASSEMBLY Click here

  12. REPLACE ELECTRIC EGR CONTROL VALVE ASSEMBLY


    1. Replace the electric EGR control valve assembly Click here.


    NEXT

  13. INSPECT INTAKE MANIFOLD (SWIRL CONTROL VALVE OPERATION)


    1. Inspect the intake manifold (swirl control valve).

      Tech Tips


      • If there are any deposits adhering to the valve, clean the valve.

      • Apply negative pressure to the diaphragm of the swirl control valve, and check whether the swirl control valve opens and closes smoothly.


    OK

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

    NG

    REPLACE INTAKE MANIFOLD Click here

  14. REPAIR OR REPLACE VACUUM HOSE


    1. Repair or replace the vacuum hose.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  15. REPLACE INTAKE MANIFOLD


    1. Replace the intake manifold (swirl control valve).


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  16. REPLACE VACUUM SWITCHING VALVE ASSEMBLY (VSV FOR SWIRL CONTROL VALVE)


    1. Replace the VSV for swirl control valve. Click here

      Tech Tips

      Before replacing the VSV for swirl control valve, perform a wire harness inspection and if there are any problems with the wire harness, repair or replace it.


    NEXT

  17. PERFORM ACTIVE TEST USING INTELLIGENT TESTER


    1. A01KIFVE04
      Text in Illustration
      *1 Air
      *2 Air Filter
      *a VSV: on
      *b VSV: off

      Disconnect the vacuum hoses from the VSV for swirl control valve.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the ignition switch ON and turn the tester ON.

    4. Enter the following menus: Powertrain / Engine / Active Test / Activate the VSV for Swirl Control Valve.

    5. Check the VSV operation when it is operated using the intelligent tester.

      OK
      Tester Operation Specified Condition
      VSV ON Air from port E flows out through port F
      VSV OFF Air from port E flows out through air filter

    OK

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

    NG

    REPLACE ECM Click here

  18. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  19. REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the harness or connector.


    NEXT

  20. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the intelligent tester to the DLC3.

    2. Start the engine and warm it up, and the A/C switch and all accessory switches should be off.

    3. Turn the tester on.

    4. Enter the following menus: Powertrain / Engine and ECT / Data List / MAP and MAF.

    5. Take a snapshot when the engine speed is maintained at 4000 rpm with no load.

    6. Read the values of "MAP" and "MAF" in the Data List using the snapshot review function.

      OK
      MAF is 100 g/sec. or more and MAP is 110 kPa or more.

    NEXT

    END