ECD SYSTEM (w/o EGR Cooler), Diagnostic DTC:P0047, P0048

DTC Code DTC Name
P0047 Turbocharger/Supercharger Boost Control "A" Circuit Low
P0048 Turbocharger/Supercharger Boost Control "A" Circuit High

DESCRIPTION

Refer to DTC P0046 Click here.

DTC No. DTC Detection Condition Trouble Area
P0047

All of following conditions met for 1 second or more

(1 trip detection logic):


  • DC motor duty ratio 100%

  • DC motor current 0.5 A or less

  • Open in DC motor circuit

  • Turbo motor driver

  • DC Motor (Turbocharger sub-assembly)
P0048

DC motor current 6.5 A or more for 0.5 seconds or more

(1 trip detection logic)

  • Short in DC motor circuit

  • Turbo motor driver

  • DC Motor (Turbocharger sub-assembly)

WIRING DIAGRAM

Refer to DTC P0046 Click here.

INSPECTION PROCEDURE

Note

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

Tech Tips

Read freeze frame data using the intelligent tester. 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 TURBOCHARGER SUB-ASSEMBLY (DC MOTOR OPERATION)


    1. Turn the ignition switch ON.

    2. Turn the ignition switch OFF and check the DC motor operation.

      OK
      When ignition switch is turned OFF, operation link moves as shown in A to D in illustration below.
      A01DZFME01

    OK

    CHECK FOR INTERMITTENT PROBLEMS Click here

    NG

  2. INSPECT TURBOCHARGER SUB-ASSEMBLY (DC MOTOR)


    1. A01DVMNE03

      Disconnect the T10 DC motor connector.

    2. Measure the resistance of the DC motor.

      Standard resistance
      Tester Connection Specified Condition
      M+ (2) - M- (1) 1 to 100 Ω

    NG

    REPLACE TURBOCHARGER SUB-ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (DC MOTOR - TURBO MOTOR DRIVER)


    1. A01E2BDE06

      Disconnect the T10 DC motor connector.

    2. Disconnect the T8 turbo motor drive connector.

    3. Measure the resistance of the wire harness side connectors.

      Standard resistance (Check for open)
      Tester Connection Specified Condition
      M+ (T8-12) - M+ (T10-2) Below 1 Ω
      M- (T8-5) - M- (T10-1) Below 1 Ω
      Standard resistance (Check for short)
      Tester Connection Specified Condition
      M+ (T8-12) or M+ (T10-2) - Body ground 10 kΩ or higher
      M- (T8-5) or M- (T10-1) - Body ground 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. REPLACE TURBO MOTOR DRIVER


    NEXT

  5. CHECK IF DTC OUTPUT RECURS (DTC P0047 AND/OR P0048)


    1. Connect the intelligent tester to the DLC3.

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

    3. Clear the DTC Click here.

    4. Start the engine.

    5. Perform the test drive.

    6. Enter the following menus: Powertrain / Engine and ECT / DTC.

    7. Read the DTCs.

      Result
      Display (DTC Output) Proceed to
      P0047 and/or P0048 A
      No output B

    B

    END

    A

    REPLACE TURBOCHARGER SUB-ASSEMBLY Click here