ECD SYSTEM (w/o DPF), Diagnostic DTC:P2006

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

DESCRIPTION

The swirl control valve and the VSV for swirl control valve are mounted on the intake manifold.

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.

A01BGTWE01
DTC No. DTC Detection Condition Trouble Area
P2006

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)

  • 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

  • Mass air flow meter

  • Air cleaner hose

  • Vacuum hose

  • ECM

WIRING DIAGRAM

A01BH88E01

INSPECTION PROCEDURE

Tech Tips

Read freeze frame data using an intelligent tester. Freeze frame data record 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, if the air-fuel ratio was lean or rich, and other data, from the time the malfunction occurred.

PROCEDURE


  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2006)


    1. Connect an intelligent tester to the DLC3.

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

    3. Select the following menu items: Powertrain / Engine / DTC.

    4. Read DTCs.

      Result
      Display (DTC Output) Proceed To
      P2006 A
      P2006 and other DTCs B

      Tech Tips

      If any DTCs other than P2006 are output, troubleshoot those DTCs first.


    B

    GO TO DTC CHART

    A

  2. CHECK CONNECTION OF AIR CLEANER HOSE


    1. Check the air cleaner hose connection.


    NG

    REPAIR OR REPLACE AIR CLEANER HOSE

    OK

  3. CHECK CONNECTION OF VACUUM HOSE


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


    NG

    REPAIR OR REPLACE VACUUM HOSE

    OK

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

    A01BEZ4E01

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

    2. Connect an intelligent tester to the DLC3.

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

    4. Select the following menu items: 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 Operations Specified Conditions
      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.


    OK

    INSPECT INTAKE MANIFOLD (SWIRL CONTROL VALVE OPERATION) Click here

    NG

  5. INSPECT VACUUM SWITCHING VALVE FOR SWIRL CONTROL VALVE (RESISTANCE)

    A01BC1AE07

    1. Disconnect the D67 VSV for swirl control valve connector.

    2. Measure the VSV for swirl control valve resistance.

      Standard resistance
      Tester Connection Specified Condition
      1 - 2

      33 to 39 Ω

      at 20°C (68°F)

    3. Reconnect the VSV for swirl control valve connector.


    NG

    REPLACE VACUUM SWITCHING VALVE FOR SWIRL CONTROL VALVE

    OK

  6. CHECK HARNESS AND CONNECTOR (VSV FOR SWIRL CONTROL VALVE - ECM)


    1. A01BF0AE05

      Disconnect the D67 VSV for swirl control valve connector.

    2. Disconnect the D1 ECM connector.

    3. Check the resistance.

      Standard resistance (Check for open)
      Tester Connection Specified Condition
      D67-1 - SCV (D1-15) Below 1 Ω
      Standard resistance (Check for short)
      Tester Connection Specified Condition
      D67-1 or SCV (D1-15) - Body ground 10 kΩ or higher

    4. Reconnect the ECM connector.

    5. Reconnect the VSV for swirl control valve connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK HARNESS AND CONNECTOR (VSV FOR SWIRL CONTROL VALVE - MAIN RELAY)


    1. A01BD7JE01

      Disconnect the D67 VSV for swirl control valve connector.

    2. Remove the integration relay (MAIN relay) from the No.1 engine room R/B and J/B.

    3. Check the resistance.

      Standard resistance (Check for open)
      Tester Connections Specified Conditions
      D67-2 - Integration relay (1J-4) Below 1 Ω
      Standard resistance (Check for short)
      Tester Connections Specified Conditions
      D67-2 or Integration relay (1J-4) - Body ground 10 kΩor higher

    4. Reinstall the integration relay.

    5. Reconnect the VSV for swirl control valve connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE ECM

  8. INSPECT INTAKE MANIFOLD (SWIRL CONTROL VALVE OPERATION)


    1. Check for contamination between the swirl control valve and the intake manifold (housing). And check that the swirl control valve moves smoothly.

      OK
      The valve is not stuck and does not have heavy carbon deposits.

    NG

    REPLACE INTAKE MANIFOLD

    OK

  9. INSPECT ELECTRIC EGR CONTROL VALVE ASSEMBLY


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

      OK
      The valve is not stuck and does not have heavy carbon deposits.

    NG

    REPLACE ELECTRIC EGR CONTROL VALVE ASSEMBLY

    OK

  10. INSPECT MASS AIR FLOW METER


    1. Inspect mass air flow meter Click here.


    NG

    REPLACE MASS AIR FLOW METER

    OK

  11. CHECK WHETHER DTC OUTPUT RECURS (DTC P2006)


    1. Connect an intelligent tester to the DLC3.

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

    3. Select the following menu items: Powertrain / Engine / DTC / Clear.

    4. Clear DTCs.

    5. Start the engine and warm it up.

    6. Accelerate the engine from idling to 3,000 rpm or more at least 3 times.

    7. Select the following menu items: Powertrain / Engine / DTC.

    8. Read DTCs.

      Result
      Display (DTC Output) Proceed To
      P2006 A
      No output B

    B

    SYSTEM OK

    A

    REPLACE ECM