ECD SYSTEM, 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 is used to change the vacuum to control the swirl control valve.

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

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P2006 Intake Manifold Runner Control Stuck Closed (Bank 1) When actual intake air volume detected by mass air flow 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).
  • Vacuum switching valve (for swirl control valve)

  • Open or short in vacuum switching valve (for swirl control valve) circuit

  • Intake manifold (swirl control valve)

  • Turbocharger sub-assembly

  • Mass air flow meter

  • Air cleaner hose

  • Vacuum hose

  • Air cleaner element is clogged

  • Intake hose is disconnected

  • ECM

Comes on DTC stored
A01L9GGC01
*1 ECM *2 Swirl Control Valve
*3 Vacuum Pump *4 Vacuum Switching Valve (for swirl control valve)
*5 Swirl Control Valve Actuator - -

CONFIRMATION DRIVING PATTERN

P2006
DTC Detection Drive Pattern After warming up engine, drive vehicle at an engine speed of 3200 rpm or more with high load for 1 minute or more.*

Tech Tips

*: When the above driving pattern cannot be performed due to road conditions, etc., the swirl control valve can be determined to be functioning normally if MAF is 84 gm/sec or more and MAP is 110 kPa or higher when the engine speed is at 4000 rpm with no load. However, no DTCs are stored when inspecting the vehicle with this method.

The above values were measured under standard atmospheric pressure. The values are influenced by elevation, weather conditions, etc.

Standard atmospheric pressure is 101 kPa. For every 100 m increase in elevation, pressure drops by 1 kPa. This varies by weather.

WIRING DIAGRAM

A01LELJE02

CAUTION / NOTICE / HINT

Tech Tips

Read freeze frame data using the GTS. Freeze frame data records the engine condition 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 GTS to the DLC3.

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

    3. Enter the following menus: Powertrain / Engine / Trouble Codes.


      Powertrain > Engine > Trouble Codes
    4. Read the DTCs.

      Result
      Result Proceed to
      P2006 A
      P2006 and other DTCs B

      Tech Tips

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

      MAP-related DTCs: P0105, P0107 and P0108.

      Click here

      MAF-related DTCs: P0100, P0102 and P0103.

      Click here

      Intake Air-related DTCs: P0110, P0112 and P0113.

      Click here

      Intake Air Temp (Turbo)-related DTCs: P0095, P0097 and P0098.

      Click here


    B
    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 if the air cleaner element is significantly dirty.

      • 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.

      • The swirl control valve does not move due to deposits or the diaphragm not being air-tight, etc., and the specified output performance cannot be obtained.

      • If operating normally, when the engine is started, the swirl control valve quickly moves from fully open to fully closed.

      • 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
    A
  3. REPAIR OR REPLACE AIR INTAKE SYSTEM


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

      Result
      Proceed to
      NEXT

    NEXT
  4. CHECK INTAKE MANIFOLD (SWIRL CONTROL VALVE OPERATION)


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

      A01LCPMC05
      *1 Swirl Control Valve - -
      OK
      Swirl control valve rod moves smoothly in the direction indicated by the arrow in the illustration.
      Result
      Proceed to
      OK
      NG

    NG
    OK
  5. READ VALUE USING GTS (MAF AND MAP)


    1. Connect the GTS to the DLC3.

    2. Start the engine and turn the GTS on.

    3. Warm up the engine (engine coolant temperature is 75°C (167°F) or higher).

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


      Powertrain > Engine > Data List
      Tester Display
      MAF
      MAP
    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.

      Result
      Result Proceed to
      MAF 84 gm/sec or more and MAP 117 kPa or higher C
      MAP below 90 kPa B
      Except above A

      Tech Tips


      • The shift lever should be in neutral and the A/C switch and all accessory switches should be off.

      • The above values were measured under standard atmospheric pressure. The values are influenced by elevation, weather conditions, etc.Standard atmospheric pressure is 101 kPa. For every 100 m increase in elevation, pressure drops by 1 kPa. This varies by weather.


    B
    C
    A
  6. CLEAN MASS AIR FLOW METER


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

      Result
      Proceed to
      NEXT

    NEXT
  7. CHECK CONNECTION OF VACUUM HOSE


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

      Result
      Proceed to
      OK
      NG

    NG
    OK
  8. PERFORM ACTIVE TEST USING GTS (ACTIVATE THE VSV FOR SWIRL CONTROL VALVE)


    1. B0026C8N01

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

    2. Connect the GTS to the DLC3.

    3. Turn the ignition switch to ON and turn the GTS on.

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


      Powertrain > Engine > Active Test
      Tester Display
      Activate the VSV for Swirl Control Valve
    5. Check the VSV operation when it is operated using the GTS.

      OK
      GTS 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
    6. Reconnect the vacuum hoses.

      Result
      Proceed to
      OK
      NG

    NG
    OK
  9. INSPECT INTAKE MANIFOLD (SWIRL CONTROL VALVE OPERATION)


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

      Click here

      Tech Tips


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

      • If there are any deposits adhering to the valve, clean the valve. When cleaning the valve, use diesel fuel or kerosene.

      • Apply vacuum to the diaphragm of the swirl control valve and check that the valve opens and closes smoothly.

      Result
      Proceed to
      OK
      NG

    OK
    NG
  10. CHECK AND REPLACE TURBOCHARGER SUB-ASSEMBLY


    1. Check the turbocharger sub-assembly.

      Click here

    2. Replace the turbocharger sub-assembly.

      Click here

      Tech Tips

      It is only necessary to replace the part when the results of the inspection indicate a problem.

      Result
      Proceed to
      NEXT

    NEXT
  11. REPAIR OR REPLACE VACUUM HOSE


    1. Repair or replace the vacuum hose.

      Result
      Proceed to
      NEXT

    NEXT
  12. REPLACE INTAKE MANIFOLD


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

      Click here

      Result
      Proceed to
      NEXT

    NEXT
  13. REPLACE VACUUM CONTROL VALVE SET


    1. Replace the vacuum control valve set.

      Click here

      Tech Tips

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

      Result
      Proceed to
      NEXT

    NEXT
  14. PERFORM ACTIVE TEST USING GTS (ACTIVATE THE VSV FOR SWIRL CONTROL VALVE)


    1. A01LES9N02

      Disconnect the vacuum hoses from the vacuum switching valve (for Swirl Control Valve).

    2. Connect the GTS to the DLC3.

    3. Turn the ignition switch to ON and turn the GTS on.

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


      Powertrain > Engine > Active Test
      Tester Display
      Activate the VSV for Swirl Control Valve
    5. Check the VSV operation when it is operated using the GTS.

      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
    6. Reconnect the vacuum hoses.

      Result
      Proceed to
      OK
      NG

    OK
    NG
  15. REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT
  16. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the GTS to the DLC3.

    2. Start the engine and turn the GTS on.

    3. Warm up the engine (engine coolant temperature is 75°C (167°F) or higher).

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


      Powertrain > Engine > Data List
      Tester Display
      MAF
      MAP
    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 84 gm/sec or more and MAP is 110 kPa or more.

      Tech Tips


      • The shift lever should be in neutral and the A/C switch and all accessory switches should be off.

      • The above values were measured under standard atmospheric pressure. The values are influenced by elevation, weather conditions, etc.

        Standard atmospheric pressure is 101 kPa. For every 100 m increase in elevation, pressure drops by 1 kPa. This varies by weather.

      Result
      Proceed to
      NEXT

    NEXT