SFI SYSTEM, Diagnostic DTC:P024313

DTC Code DTC Name
P024313 Turbocharger/Supercharger Wastegate Solenoid "A" Circuit Open

DESCRIPTION

The waste gate valve is built into the turbine housing and is operated by the vacuum regulating valve assembly. The ECM uses duty control to open and close the vacuum regulating valve assembly. The amount of opening is controlled according to the operation status.

When the engine is started, the degree of opening of the waste gate valve is optimally adjusted so that the hot combustion gases passing through it flow directly into the catalyst. In the low-engine-load operating range, the waste gate valve opens to lower the exhaust manifold pressure to reduce pumping losses and improve fuel economy. Closing the waste gate valve increases the torque in the engine low-speed, high-load range to improve response during acceleration.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P024313

Turbocharger/Supercharger Wastegate Solenoid "A" Circuit Open

Open or short in vacuum regulating valve assembly circuit for 1 second or more (1 trip detection logic)

  • Open or short in vacuum regulating valve assembly circuit

  • Vacuum regulating valve assembly

  • ECM

Does not come on

DTC stored

SAE Code: P0243

MONITOR DESCRIPTION

This DTC is stored when an open or short is detected in the vacuum regulating valve assembly circuit. When an excessively high or low duty cycle malfunction occurs in the vacuum regulating valve assembly during vacuum regulating valve assembly drive, the ECM stores this DTC.

MONITOR STRATEGY

Required Sensors/Components (Main)

Vacuum regulating valve assembly

Frequency of Operation

Continuous

CONFIRMATION DRIVING PATTERN

A330723E05

  1. Connect the GTS to the DLC3.

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

  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  4. Turn the ignition switch off and wait for at least 30 seconds.

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

  6. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [A].

  7. Accelerate to 50 km/h (31 mph) or more with the accelerator pedal fully depressed [B].

    CAUTION:

    When performing the confirmation driving pattern, obey all speed limits and traffic laws.

  8. Enter the following menus: Powertrain / Engine / Trouble Codes [C].

  9. Read the pending DTCs.

    Tip:

    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

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

  11. Input the DTC: P024313.

  12. Check the DTC judgment result.

    GTS Display

    Description

    NORMAL

    • DTC judgment completed

    • System normal

    ABNORMAL

    • DTC judgment completed

    • System abnormal

    INCOMPLETE

    • DTC judgment not completed

    • Perform driving pattern after confirming DTC enabling conditions

    N/A

    • Unable to perform DTC judgment

    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
    Tip:

    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE or N/A, perform steps [B] and [C] again.

WIRING DIAGRAM

A330728E35

CAUTION / NOTICE / HINT

Tip:

Read freeze frame data using the GTS. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. 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. INSPECT VACUUM REGULATING VALVE ASSEMBLY

    1. Inspect the vacuum regulating valve assembly.

      Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE VACUUM REGULATING VALVE ASSEMBLY

    Click hereClick here

    OK

  2. CHECK HARNESS AND CONNECTOR (VACUUM REGULATING VALVE ASSEMBLY - ECM)

    1. Disconnect the vacuum regulating valve assembly 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

      B201-1 - B208-37 (WGV+)

      Always

      Below 1 Ω

      B201-2 - B208-36 (WGV-)

      Always

      Below 1 Ω

      B201-1 or B208-37 (WGV+) - Body ground and other terminals

      Always

      10 kΩ or higher

      B201-2 or B208-36 (WGV-) - Body ground and other terminals

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK WHETHER DTC OUTPUT RECURS (DTC P024313)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs.

      Powertrain > Engine > Clear DTCs

    5. Turn the ignition switch off and wait for at least 30 seconds.

    6. Start the engine and warm it up.

    7. Turn the GTS on.

    8. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

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

      Powertrain > Engine > Utility

      Tester Display

      All Readiness

    10. Input the DTC: P024313.

    11. Check the DTC judgment result.

      Result

      Result

      Proceed to

      NORMAL

      (DTCs are not output)

      A

      ABNORMAL

      (DTC P024313 is output)

      B
    A

    CHECK FOR INTERMITTENT PROBLEMS

    Click here

    B

    REPLACE ECM

    Click hereClick here