ECD SYSTEM (for Swirl Control Valve), Diagnostic DTC:P0046

DTC Code DTC Name
P0046 Turbocharger / Supercharger Boost Control "A" Circuit Range / Performance

DESCRIPTION

Refer to DTC P0045 Click here.

DTC No. DTC Detection Condition Trouble Area
P0046

Overcurrent or short in both outputs of DC motor (turbocharger sub-assembly) circuit for 0.22 seconds.

(3 trip detection logic)

  • Open or short in DC motor (turbocharger sub-assembly) circuit

  • DC motor (turbocharger sub-assembly)

  • ECM

WIRING DIAGRAM

A01IUHTE52

INSPECTION PROCEDURE

Note

When replacing the ECM, the ECM needs Registration and Initialization Click here.

Tech Tips


  • When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the GTS. Then after installing the new ECM, perform all of the initialization/registrations for the "Learning Values Write" function by following the instructions shown on the GTS display.

  • 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. CHECK HARNESS AND CONNECTOR (DC MOTOR - ECM)


    1. Disconnect the DC motor 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
      C83-1 (VN+A) - C112-51 (VN+A) Always Below 1 Ω
      C83-2 (VN-A) - C112-21 (VN-A) Always Below 1 Ω
      C83-1 (VN+A) or C112-51 (VN+A) - Body ground Always 10 kΩ or higher
      C83-2 (VN-A) or C112-21 (VN-A) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  2. INSPECT TURBOCHARGER SUB-ASSEMBLY (DC MOTOR)


    1. Disconnect the turbocharger sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (VN+A) - 2 (VN-A) Always 0.3 to 100 Ω

    NG

    REPLACE TURBOCHARGER SUB-ASSEMBLY Click here

    OK

  3. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  4. REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the harness or connector.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  5. REPLACE TURBOCHARGER SUB-ASSEMBLY


    1. Replace the turbocharger sub-assembly Click here.


    NEXT

  6. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the GTS to the DLC3.

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

    3. Clear the DTCs Click here.

    4. Turn the ignition switch off and wait for 60 seconds or more [A].

    5. Perform road test [B].

    6. Repeat [A] and [B] for the number of trips detected.

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

    8. Confirm that the DTC is not output again.


    NEXT

    END