ECD SYSTEM (w/o DPF), 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

Both 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

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. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (TEST THE TURBO CHARGER STEP MOTOR)


    1. Turn the ignition switch to ON.

    2. Turn the ignition switch off and check the DC motor operation (check the operation link movement).

      OK
      When the ignition switch is turned off, the operation link moves as shown in A to D in the illustration below and the operation link contacts the stopper bolt
      A01BC6XE01

    NG

    INSPECT TURBOCHARGER SUB-ASSEMBLY (DC MOTOR) Click here

    OK

    CHECK FOR INTERMITTENT PROBLEMS

  2. INSPECT TURBOCHARGER SUB-ASSEMBLY (DC MOTOR)


    1. A01BC1AE13
      Text in Illustration
      *a

      Component with harness connected

      (DC Motor)

      Disconnect the D65 DC motor connector.

    2. Measure the DC motor resistance.

      Standard resistance
      1 to 100 Ω

    NG

    REPLACE TURBOCHARGER SUB-ASSEMBLY

    OK

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


    1. Disconnect the D65 DC motor connector.

    2. Disconnect the B53 turbo motor driver connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      B53-12 (M+) - D65-2 (M+) Always Below 1 Ω
      B53-5 (M-) - D65-1 (M-) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      B53-12 (M+) or D65-2 (M+) - Body ground Always 10 kΩ or higher
      B53-5 (M-) or D65-1 (M-) - Body ground Always 10 kΩ or higher

    4. Reconnect the turbo motor driver connector.

    5. Reconnect the DC motor connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. REPLACE TURBO MOTOR DRIVER


    1. Replace the turbo motor driver.


    NEXT

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


    1. Connect the intelligent tester to the DLC3.

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

    3. Clear the DTCs Click here.

    4. Drive the vehicle with a city driving pattern at least 10 minutes.

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

    6. Read the DTCs.

      Result
      Result Proceed to
      P0047 and/or P0048 is output A
      No DTC is output B

    B

    END

    A

    REPLACE TURBOCHARGER SUB-ASSEMBLY