ECD SYSTEM(for CCo), Diagnostic DTC:P0045

DTC Code DTC Name
P0045 Turbocharger / Supercharger Boost Control Solenoid Circuit / Open

DESCRIPTION

This DTC indicates that the vacuum regulating valve assembly of the turbocharger is malfunctioning. The ECM monitors the vacuum regulating valve assembly current to detect an open or short in the vacuum regulating valve assembly circuit. If the current is out of the standard range, the ECM stores a DTC and illuminates the MIL immediately.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P0045 Turbocharger / Supercharger Boost Control Solenoid Circuit / Open

Open or short in vacuum regulating valve assembly circuit for 0.5 seconds or more.

(1 trip detection logic)

  • Vacuum regulating valve assembly (for turbocharger control)

  • Open or short in vacuum regulating valve assembly (for turbocharger control) circuit

  • ECM

 Comes on DTC stored

Tech Tips

If DTC P0045 is stored, the following symptoms may appear.

When the nozzle vane of the turbocharger is stuck closed:

- Vehicle surge when driving with full load

When the nozzle vane of the turbocharger is stuck open:

- Lack of power

- Vehicle surge or hesitation under light or medium load

- White smoke

CONFIRMATION DRIVING PATTERN

DTC No. DTC Detection Drive Pattern
P0045 Ignition switch ON for 1 second

WIRING DIAGRAM

A00YW1FE01

CAUTION / NOTICE / HINT

Note


  • Inspect the fuses of circuits related to this system before performing the following inspection procedure.

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

Tech Tips

Read freeze frame data using the GTS. Freeze frame data records 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, and other data from the time the malfunction occurred.

PROCEDURE


  1. INSPECT VACUUM REGULATING VALVE ASSEMBLY (FOR TURBOCHARGER CONTROL)


    1. Inspect the vacuum regulating valve assembly (for turbocharger control).

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE VACUUM REGULATING VALVE ASSEMBLY (FOR TURBOCHARGER CONTROL) Click here

    OK

  2. CHECK TERMINAL VOLTAGE (POWER SOURCE)


    1. A00YV53C01
      *a

      Front view of wire harness connector

      (to Vacuum Regulating Valve Assembly (for Turbocharger Control))

      Disconnect the vacuum regulating valve assembly (for turbocharger control) connector.

    2. Turn the ignition switch to ON.

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      B43-1 - Body ground Ignition switch ON 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (VACUUM REGULATING VALVE ASSEMBLY (FOR TURBOCHARGER CONTROL) - EFI-MAIN NO. 2 RELAY) Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (VACUUM REGULATING VALVE ASSEMBLY (FOR TURBOCHARGER CONTROL) - ECM)


    1. Disconnect the vacuum regulating valve assembly (for turbocharger control) 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
      B43-2 - B76-83 (VN) Always Below 1 Ω
      B43-2 or B76-83 (VN) - Body ground Always 10 kΩ or higher

    4. Reconnect the vacuum regulating valve assembly (for turbocharger control) connector.

    5. Reconnect the ECM connector.

      Result
      Proceed to
      OK
      NG

    NG

    GO TO STEP 11 Click here

    OK

  4. REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 13 Click here

  5. CHECK HARNESS AND CONNECTOR (VACUUM REGULATING VALVE ASSEMBLY (FOR TURBOCHARGER CONTROL) - EFI-MAIN NO. 2 RELAY)


    1. Disconnect the vacuum regulating valve assembly (for turbocharger control) connector.

    2. Remove the EFI-MAIN NO. 2 relay from the engine room relay block and junction block assembly.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      B43-1 - 3 (EFI-MAIN NO. 2 relay) Always Below 1 Ω
      B43-1 or 3 (EFI-MAIN NO. 2 relay) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  6. INSPECT EFI-MAIN NO. 2 RELAY


    1. Inspect the EFI-MAIN NO. 2 relay.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE EFI-MAIN NO. 2 RELAY Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (EFI-MAIN NO. 2 RELAY - ECM)


    1. Remove the EFI-MAIN NO. 2 relay from the engine room relay block and junction block assembly.

    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
      1 (EFI-MAIN NO. 2 relay) - A61-45 (MREL) Always Below 1 Ω
      1 (EFI-MAIN NO. 2 relay) or A61-45 (MREL) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    GO TO STEP 11 Click here

    OK

  8. CHECK HARNESS AND CONNECTOR (EFI-MAIN NO. 2 RELAY - BODY GROUND)


    1. Remove the EFI-MAIN NO. 2 relay from the engine room relay block and junction block assembly.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      2 (EFI-MAIN NO. 2 relay) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    GO TO STEP 11 Click here

    OK

  9. REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI-MAIN NO. 2 RELAY - BATTERY)


    1. Repair or replace harness or connector.

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 13 Click here

  10. REPLACE EFI-MAIN NO. 2 RELAY


    1. Replace the EFI-MAIN NO. 2 relay.

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 13 Click here

  11. REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the harness or connector.

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 13 Click here

  12. REPLACE VACUUM REGULATING VALVE ASSEMBLY (FOR TURBOCHARGER CONTROL)


    1. Replace the vacuum regulating valve assembly (for turbocharger control).

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  13. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the GTS to the DLC3.

    2. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

    3. Turn the ignition switch to ON for 1 second or more.

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


      Powertrain > Engine > Trouble Codes

    5. Confirm that the DTC is not output again.

      Result
      Proceed to
      NEXT

    NEXT

    END