ECD SYSTEM (for DPF), Diagnostic DTC:P06DB, P06DC

DTC Code DTC Name
P06DB Engine Oil Pressure Control Circuit Low
P06DC Engine Oil Pressure Control Circuit High

DESCRIPTION

Refer to DTC P0524 Click here

P06DB
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
After warming up the engine, race the engine at 2200 rpm or higher.* Open or short in the oil pressure switching valve circuit for 1 second (1 trip detection logic).

  • Open or short in oil pressure switching valve assembly circuit

  • Oil pressure switching valve assembly

  • ECM
P06DC
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
After warming up the engine, race the engine at 2200 rpm or higher.* Open or short in the oil pressure switching valve circuit for 1 second (1 trip detection logic).

  • Open or short in oil pressure switching valve assembly circuit

  • Oil pressure switching valve assembly

  • ECM

*: Using the intelligent tester, the oil pressure control system can be inspected by performing Engine Oil Pressure Control Check. Enter the following menus: Powertrain / Engine and ECT/ Utility / Engine Oil Pressure Control Check.

Related Data List
DTC No. Data List

P06DB

P06DC

 Eng Oil Press Switch Valve

WIRING DIAGRAM

Refer to DTC P0522 Click here

INSPECTION PROCEDURE

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 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. CHECK OIL PRESSURE SWITCHING VALVE ASSEMBLY


    1. Inspect the oil pressure switching valve assembly Click here.


    NG

    REPLACE OIL PRESSURE SWITCHING VALVE ASSEMBLY Click here

    OK

  2. CHECK TERMINAL VOLTAGE (POWER SOURCE)


    1. A01IQ07E55
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Oil Pressure Switching Valve Assembly)

      Disconnect the oil pressure switching valve assembly 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 Condition Specified Condition
      C74-2 (OSV+) - Body ground Ignition switch ON 11 to 14 V

    4. Reconnect the oil pressure switching valve assembly connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (OIL PRESSURE SWITCHING VALVE - ECM)


    1. Disconnect the oil pressure switching valve 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
      C74-1 (OSVG) - C69-83 (EOPV) Always Below 1 Ω
      C74-1 (OSVG) or C69-83 (EOPV) - Body ground Always 10 kΩ or higher

    4. Reconnect the oil pressure switching valve assembly connector.

    5. Reconnect the ECM connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  4. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  5. REPLACE OIL PRESSURE SWITCHING VALVE ASSEMBLY


    1. Replace the oil pressure switching valve assembly.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  6. REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the harness or connector.


    NEXT

  7. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the intelligent tester to the DLC3.

    2. Clear the DTCs Click here.

    3. Turn the ignition switch off for 30 seconds or more.

    4. Turn the ignition switch to ON and start the engine.

    5. After warming up the engine, race the engine at 3000 rpm or higher.

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

    7. Confirm that the DTC is not output again.


    NEXT

    END