SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P024300, P024700, P25B372, P25B473, P25B572, P25B673

DTC Code DTC Name
P024300 Turbocharger/Supercharger Wastegate Actuator "A"
P024700 Turbocharger/Supercharger Wastegate Actuator "B"
P25B372 Turbocharger/Supercharger Wastegate "A" Actuator Stuck Open
P25B473 Turbocharger/Supercharger Wastegate "A" Actuator Stuck Closed
P25B572 Turbocharger/Supercharger Wastegate "B" Actuator Stuck Open
P25B673 Turbocharger/Supercharger Wastegate "B" Actuator Stuck Closed

DESCRIPTION

The waste gate valve is installed in the turbine housing. The ECM uses duty control to operate the DC motor inside the waste gate valve actuator assembly to control the opening amount according to the operation status.

The waste gate valve opening amount is detected by the waste gate valve position sensor and transmitted to the ECM. When high load engine operation is necessary, the waste gate valve closes to increase the torque and improve the response during acceleration. In the low-engine-load operating range, the waste gate valve opens to lower the exhaust manifold pressure to further reduce pumping losses and improve fuel economy.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P024300 Turbocharger/Supercharger Wastegate Actuator "A"

Both of the following conditions are met during waste gate valve active detection (1 trip detection logic):


  • Position sensor voltage at waste gate valve fully open contact is outside the specified range or position sensor voltage at waste gate valve fully closed contact is outside the specified range

  • Difference between position sensor voltages at waste gate valve fully open and fully closed contact is at or above a specified value

  • Open or short in waste gate valve actuator assembly (bank 1) circuit

  • Turbocharger sub-assembly (bank 1)

  • ECM

 Comes on DTC stored SAE: P0243
P024700 Turbocharger/Supercharger Wastegate Actuator "B"

Both of the following conditions are met during waste gate valve active detection (1 trip detection logic):


  • Position sensor voltage at waste gate valve fully open contact is outside the specified range or position sensor voltage at waste gate valve fully closed contact is outside the specified range

  • Difference between position sensor voltages at waste gate valve fully open and fully closed contact is at or above a specified value

  • Open or short in waste gate valve actuator assembly (bank 2) circuit

  • Turbocharger sub-assembly (bank 2)

  • ECM

 Comes on DTC stored SAE: P0247
P25B372 Turbocharger/Supercharger Wastegate "A" Actuator Stuck Open

All of the following conditions are met during waste gate valve active detection (1 trip detection logic):


  • Position sensor voltage at waste gate valve fully open contact is within the specified range

  • Position sensor voltage at waste gate valve fully closed contact is outside the specified range

  • Difference between position sensor voltages at waste gate valve fully open and fully closed contact is smaller than the specified value

  • Open or short in waste gate valve actuator assembly (bank 1) circuit

  • Turbocharger sub-assembly (bank 1)

  • ECM

 Comes on DTC stored SAE: P25B3
P25B473 Turbocharger/Supercharger Wastegate "A" Actuator Stuck Closed

All of the following conditions are met during waste gate valve active detection (1 trip detection logic):


  • Position sensor voltage at waste gate valve fully open contact is outside the specified range

  • Position sensor voltage at waste gate valve fully closed contact is within the specified range

  • Difference between position sensor voltages at waste gate valve fully open and fully closed contact is smaller than the specified value

  • Open or short in waste gate valve actuator assembly (bank 1) circuit

  • Turbocharger sub-assembly (bank 1)

  • ECM

 Comes on DTC stored SAE: P25B4
P25B572 Turbocharger/Supercharger Wastegate "B" Actuator Stuck Open

All of the following conditions are met during waste gate valve active detection (1 trip detection logic):


  • Position sensor voltage at waste gate valve fully open contact is within the specified range

  • Position sensor voltage at waste gate valve fully closed contact is outside the specified range

  • Difference between position sensor voltages at waste gate valve fully open and fully closed contact is smaller than the specified value

  • Open or short in waste gate valve actuator assembly (bank 2) circuit

  • Turbocharger sub-assembly (bank 2)

  • ECM

 Comes on DTC stored SAE: P25B5
P25B673 Turbocharger/Supercharger Wastegate "B" Actuator Stuck Closed

All of the following conditions are met during waste gate valve active detection (1 trip detection logic):


  • Position sensor voltage at waste gate valve fully open contact is outside the specified range

  • Position sensor voltage at waste gate valve fully closed contact is within the specified range

  • Difference between position sensor voltages at waste gate valve fully open and fully closed contact is smaller than the specified value

  • Open or short in waste gate valve actuator assembly (bank 2) circuit

  • Turbocharger sub-assembly (bank 2)

  • ECM

 Comes on DTC stored SAE: P25B6

MONITOR DESCRIPTION


  1. WASTE GATE VALVE ACTIVE DETECTION

    While the vehicle is stopped after engine warm-up, the ECM forcibly operates the waste gate valve to make contact for 3 seconds each in the fully open and fully closed positions while the engine is idling with accelerator pedal fully released. The ECM judges from the output voltage of the position sensor whether the following 3 items are within the specified range.


    • Position sensor voltage at waste gate valve fully open contact

    • Position sensor voltage at waste gate valve fully closed contact

    • Difference between position sensor voltages at waste gate valve fully open and fully closed contact

  2. WASTE GATE VALVE MALFUNCTION (P024300, P024700)

    When any or all of the output voltages during waste gate valve fully open contact and fully closed contact and the difference in the voltage change amount are outside the specified range, the ECM stores a DTC.

  3. WASTE GATE VALVE ACTUATOR STUCK OPEN (P25B372, P25B572)

    During waste gate valve active detection, when the output voltage at waste gate valve fully open contact is within the specified range, the output voltage at fully closed contact is outside the specified range and the voltage change amount is smaller than the specified value, the valve is judged to be stuck open and the ECM stores a DTC.

  4. WASTE GATE VALVE ACTUATOR STUCK CLOSED (P25B473, P25B673)

    During waste gate valve active detection, when the output voltage at waste gate valve fully closed contact is within the specified range, the output voltage at fully open contact is outside the specified range and the voltage change amount is smaller than the specified value, the valve is judged to be stuck closed and the ECM stores a DTC.

MONITOR STRATEGY

Required Sensors/Components Waste gate valve actuator assembly
Frequency of Operation Once per driving cycle

TYPICAL ENABLING CONDITIONS

Battery voltage 11 V or higher
Engine coolant temperature 70°C (158°F) or higher
Idle On
Engine speed 400 to 2000 rpm
Vehicle speed 20 km/h (12.4 mph) or less
Atmospheric pressure 76 kPa(abs) [11.02 psi(abs)] or higher
Intake air amount More than 15 g

CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG).

  3. Turn the GTS on.

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

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

  6. Turn the engine switch off and wait for at least 30 seconds.

  7. Turn the engine switch on (IG).

  8. Turn the GTS on.

  9. Start the engine.

  10. Idle the engine for 1 minute or more.

    Tech Tips

    This is for performing waste gate valve active detection.

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

  12. Read the pending DTCs.

    Tech Tips


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

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

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

  14. Input the DTC: P024300, P024700, P025B372, P025B473, P025B572 or P25B673.

  15. 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

    Tech Tips


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

    • If the judgment result is ABNORMAL, the system is malfunctioning.

WIRING DIAGRAM

Refer to DTC P024318.

Click here

CAUTION / NOTICE / HINT

Tech Tips


  • 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.

  • Bank 1 refers to the bank that includes the No. 1 cylinder*.

    *: The No. 1 cylinder is the cylinder which is farthest from the transmission.

  • Bank 2 refers to the bank that does not include the No. 1 cylinder.

    DTC Suspected Area
    P024300, P25B372, P25B473 Bank 1
    P024700, P25B572, P25B673 Bank 2

PROCEDURE


  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P24300, P24700, P2B372, P2B473, P2B572 AND/OR P2B673)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

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

    5. Read the DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTC P24300, P24700, P2B372, P2B473, P2B572 and/or P2B673 is output A
      DTC P24300, P24700, P2B372, P2B473, P2B572 and/or P2B673 and other DTCs are output B

      Tech Tips

      If any DTCs other than P24300, P24700, P2B372, P2B473, P2B572 and/or P2B673 are output, troubleshoot those DTCs first.


    B

    GO TO DTC CHART Click here

    A

  2. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

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

      Result
      Proceed to
      NEXT

    NEXT

  3. READ VALUE USING GTS (WASTEGATE VALVE)


    1. Start the engine.

    2. Allow the engine to idle until Coolant Temperature reaches 75°C (167°F) or higher.

    3. Turn the engine switch off and wait for at least 30 seconds.

    4. Turn the GTS on.

    5. Enter the following menus: Powertrain / Engine / Data List / Wastegate Valve Control Duty Ratio Bank1, Wastegate Valve Control Duty Ratio Bank2, Wastegate Valve Sensor Voltage when Fully Closed Bank1, Wastegate Valve Sensor Voltage when Fully Closed Bank2, Wastegate Valve Sensor Voltage when Fully Open Bank1, Wastegate Valve Sensor Voltage when Fully Open Bank2, Wastegate Valve Actuator Current Bank1, Wastegate Valve Actuator Current Bank2, Wastegate Valve Position Bank1 and Wastegate Valve Position Bank2.


      Powertrain > Engine > Data List
      Tester Display
      Wastegate Valve Control Duty Ratio Bank2
      Wastegate Valve Control Duty Ratio Bank1
      Wastegate Valve Sensor Voltage when Fully Closed Bank1
      Wastegate Valve Sensor Voltage when Fully Closed Bank2
      Wastegate Valve Sensor Voltage when Fully Open Bank1
      Wastegate Valve Sensor Voltage when Fully Open Bank2
      Wastegate Valve Actuator Current Bank1
      Wastegate Valve Actuator Current Bank2
      Wastegate Valve Position Bank1
      Wastegate Valve Position Bank2

    6. Set the snapshot function and start saving the data.

    7. Start the engine, run it at idle for 1 minute or more and then save the data.

    8. Display the saved data and read the Data List.

      Standard
      Standard Condition GTS Display Specified Condition
      1 When waste gate valve fully open contact Wastegate Valve Sensor Voltage when Fully Open Bank1 (Bank2) 0.7 to 1.6 V
      2 When waste gate valve fully closed contact Wastegate Valve Sensor Voltage when Fully Closed Bank1 (Bank2) 3.6 to 4.4 V
      3 From waste gate valve fully open to fully closed contact Wastegate Valve Sensor Voltage when Fully Closed Bank1 (Bank2) - Wastegate Valve Sensor Voltage when Fully Open Bank1 (Bank2) 1.8 to 3.8 V
      4 From waste gate valve fully open to fully closed contact - 3.8 V / sec. or higher
      Result
      Result Proceed to
      Waste gate valve does not move (Standards 1 to 4 are not met) A
      Waste gate valve abnormal sliding (Standard 4 is not met, Standards 1 to 3 are met)
      Waste gate valve moves smoothly but fully closed contact position is outside the specified range (Standard 4 is met, Standard 1, 2 or 3 is not met) B
      Waste gate valve moves smoothly (All Standards from 1 to 4 are met) C

      Tech Tips

      Perform "Inspection After Repair" after replacing the turbocharger sub-assembly.

      Click here


    B

    REPLACE TURBOCHARGER SUB-ASSEMBLY Click here

    C

    CLEAR DTC Click here

    A

  4. PERFORM ACTIVE TEST USING GTS (CONTROL THE WASTEGATE VALVE DUTY RATIO)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine / Active Test / Control the Wastegate Valve Duty Ratio Bank1 / Data List / Wastegate Valve Actuator Current Bank1.


      Powertrain > Engine > Active Test
      Active Test Display
      Control the Wastegate Valve Duty Ratio Bank1
      Data List Display
      Wastegate Valve Actuator Current Bank1

    5. Enter the following menus: Powertrain / Engine / Active Test / Control the Wastegate Valve Duty Ratio Bank2 / Data List / Wastegate Valve Actuator Current Bank2.


      Powertrain > Engine > Active Test
      Active Test Display
      Control the Wastegate Valve Duty Ratio Bank2
      Data List Display
      Wastegate Valve Actuator Current Bank2

    6. Operate the Active Test at 10% until the wastegate valve makes contact, and then operate it at 30% and read the Data List.

      Result
      GTS Operation Wastegate Valve Actuator Current Bank1 or Wastegate Valve Actuator Current Bank2
      30% 0.7 A or higher
      Result
      Proceed to
      OK
      NG

      Tech Tips

      Perform "Inspection After Repair" after replacing the turbocharger sub-assembly.

      Click here


    OK

    REPLACE TURBOCHARGER SUB-ASSEMBLY Click here

    NG

  5. CHECK HARNESS AND CONNECTOR (WASTE GATE VALVE ACTUATOR ASSEMBLY- ECM)


    1. Disconnect the waste gate valve actuator 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
      D40-2 (WG1+) - D1-1 (WGM+) Always Below 1 Ω
      D40-1 (WG1-) - D1-2 (WGM-) Always Below 1 Ω
      D41-1 (WG2+) - D1-20 (WG2+) Always Below 1 Ω
      D41-2 (WG2-) - D1-21 (WG2-) Always Below 1 Ω
      D40-2 (WG1+) or D1-1 (WGM+) - Body ground and other terminals Always 10 kΩ or higher
      D40-1 (WG1-) or D1-2 (WGM-) - Body ground and other terminals Always 10 kΩ or higher
      D41-1 (WG2+) or D1-20 (WG2+) - Body ground and other terminals Always 10 kΩ or higher
      D41-2 (WG2-) or D1-21 (WG2-) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE ECM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

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

      Result
      Proceed to
      NEXT

    NEXT

  7. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


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

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


      Powertrain > Engine > Utility
      Tester Display
      All Readiness

    3. Input the DTC: P24300, P24700, P2B372, P2B473, P2B572 or P2B673.

    4. Check the DTC judgment result.

      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
      Result
      Proceed to
      NEXT

    NEXT

    END