ECD SYSTEM INITIALIZATION


  1. Supply Pump Learning Value Reset

    Tech Tips

    When a fuel supply pump assembly is replaced, the fuel supply pump learning value stored in the ECM must be reset.

    This function is used to reset the fuel supply pump learning value stored in the ECM upon replacing the fuel supply pump assembly.


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

      Note

      Do not start the engine.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine and ECT / Utility / Supply Pump Learning Value Reset.

    5. A004N47

      When the first screen is displayed, check the vehicle condition and push "Next".

      Tech Tips

      If an error occurs during learning value reset, check the vehicle condition, and then perform learning value reset again.

      A004R27
    6. A004NL6

      When the screen indicating reset completion is displayed, push "Exit".

  2. EGR Learning Value Reset

    Tech Tips

    When an EGR valve assembly is replaced, the EGR learning value stored in the ECM must be reset.

    This function is used to reset the EGR learning value stored in the ECM upon replacing the EGR valve assembly.


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

      Note

      Do not start the engine.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine and ECT / Utility / EGR Learning Value Reset.

    5. A004SR2

      When the first screen is displayed, check the vehicle condition and push "Next".

      Note

      DTC P042F is output when performing EGR learning value reset. Therefore, after starting the engine, clear the DTCs.

      Tech Tips

      If an error occurs during learning value reset, check the vehicle condition, and then perform learning value reset again.

      A004O1P
    6. A004NEX

      When the screen indicating reset completion is displayed, push "Exit".

    7. Start the engine 3 times and keep the engine speed above 3000 rpm for 3 seconds each time.

  3. Air Flow Meter Learning Value Reset

    Tech Tips

    When a mass air flow meter is replaced, the air flow meter learning value and deterioration compensation stored in the ECM must be reset.

    This function is used to reset the air flow meter learning value and deterioration compensation stored in the ECM upon replacing the mass air flow meter.


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

      Note

      Do not start the engine.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine and ECT / Utility / Air Flow Meter Learning Value Reset.

    5. A004R1M
      A004OKO

      When the first screen is displayed, check the vehicle condition and push "Next".

      Tech Tips

      If an error occurs during learning value reset, check the vehicle condition, and then perform compensation reset again.

    6. A004PZY

      Press "Next".

    7. A004OA6

      When the screen indicating reset completion is displayed, push "Exit".

  4. DPF History Information Reset

    Tech Tips


    • This value is the ash accumulation volume in the exhaust manifold converter sub-assembly (DPF catalytic converter) calculated by the ECM. If the ash accumulation volume in the exhaust manifold converter sub-assembly (DPF catalytic converter) increases, the difference in pressure in front of and behind the exhaust manifold converter sub-assembly (DPF catalytic converter) will increase. The difference in pressure in front of and behind the exhaust manifold converter sub-assembly (DPF catalytic converter) is offset depending on the volume of accumulated ash.

    • When an exhaust manifold converter sub-assembly (DPF catalytic converter) is replaced, the DPF deterioration record stored in the ECM must be cleared.


    1. Connect the GTS to the DLC3.

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

    3. Enter the following menus: Powertrain / Engine and ECT / Utility / DPF History Information Reset.

    4. A004QV6

      When the first screen is displayed, check the vehicle condition and push "Next".

      Tech Tips

      If an error occurs during history information reset, check the vehicle condition, and then perform history information reset again.

      A004T8N
    5. A004PUH

      Press "Next".

    6. A004PI0

      When the screen indicating reset completion is displayed, push "Exit".

  5. O2 Sensor Learning Value Reset

    Tech Tips

    When an air fuel ratio sensor is replaced, the air fuel ratio sensor learning value stored in the ECM must be reset.

    This function is used to reset the air fuel ratio sensor learning value stored in the ECM upon replacing the air fuel ratio sensor.


    1. Connect the GTS to the DLC3.

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

    3. Enter the following menus: Powertrain / Engine and ECT / Utility / O2 Sensor Learning Value Reset.

    4. A004QAR

      When the first screen is displayed, check the vehicle condition and push "Next".

      Tech Tips

      If an error occurs during learning value reset, check the vehicle condition, and then perform learning value reset again.

      A004PUY
    5. A004OLV

      When the screen indicating reset completion is displayed, push "Exit".

  6. Differential Pressure Learning Value Reset

    Tech Tips

    When a differential pressure sensor is replaced, the differential pressure sensor learning value stored in the ECM must be reset.

    This function is used to reset the differential pressure sensor learning value stored in the ECM upon replacing the differential pressure sensor.


    1. Connect the GTS to the DLC3.

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

    3. Enter the following menus: Powertrain / Engine and ECT / Utility / Differential Pressure Learning Value Reset.

    4. A004MRA

      When the first screen is displayed, check the vehicle condition and push "Next".

      Tech Tips

      If an error occurs during learning value reset, check the vehicle condition, and then perform learning value reset again.

      A004SXX
    5. A004MZT

      When the screen indicating reset completion is displayed, push "Exit".

  7. Swirl Valve Learning Value Reset

    Tech Tips

    When a swirl control valve is replaced, the swirl control valve learning value stored in the ECM must be reset.

    This function is used to reset the swirl control valve learning value stored in the ECM upon replacing the swirl control valve.


    1. Connect the GTS to the DLC3.

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

    3. Enter the following menus: Powertrain / Engine and ECT / Utility / Swirl Valve Learning Value Reset.

    4. A004T2P

      When the first screen is displayed, check the vehicle condition and push "Next".

      Tech Tips

      If an error occurs during learning value reset, check the vehicle condition, and then perform learning value reset again.

      A004QAW
    5. A004TJQ

      When the screen indicating reset completion is displayed, push "Exit".

  8. Upstream Turbine Pressure Learning Value Reset

    Tech Tips

    When a turbo pressure sensor is replaced, the turbo pressure sensor learning value stored in the ECM must be reset.

    This function is used to reset the turbo pressure sensor learning value stored in the ECM upon replacing the turbo pressure sensor.


    1. Connect the GTS to the DLC3.

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

    3. Enter the following menus: Powertrain / Engine and ECT / Utility / Upstream Turbine Pressure Learning Value Reset.

    4. A004PVW

      When the first screen is displayed, check the vehicle condition and push "Next".

      Tech Tips

      If an error occurs during learning value reset, check the vehicle condition, and then perform learning value reset again.

      A004QE4
    5. A004PIQ

      When the screen indicating reset completion is displayed, push "Exit".

  9. NOx Storage Catalyst Learning Value Reset

    Tech Tips

    When an exhaust manifold converter sub-assembly (catalytic converter) is replaced, the NOx storage catalyst learning value stored in the ECM must be reset.

    This function is used to reset the NOx storage catalyst learning value stored in the ECM upon replacing the exhaust manifold converter sub-assembly (catalytic converter).


    1. Connect the GTS to the DLC3.

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

    3. Enter the following menus: Powertrain / Engine and ECT / Utility / NOx Storage Catalyst Learning Value Reset.

    4. A004OTG

      When the first screen is displayed, check the vehicle condition and push "Next".

      Tech Tips

      If an error occurs during learning value reset, check the vehicle condition, and then perform learning value reset again.

      A004OBD
    5. A004SSY

      When the screen indicating reset completion is displayed, push "Exit".

  10. Fuel PCV Compensation Value Reset

    Tech Tips

    When a pressure discharge valve is replaced, the fuel PCV compensation value stored in the ECM must be reset.

    This function is used to reset the fuel PCV compensation value stored in the ECM upon replacing the pressure discharge valve.


    1. Connect the GTS to the DLC3.

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

    3. Enter the following menus: Powertrain / Engine and ECT / Utility / Fuel PCV Compensation Value Reset.

    4. A004SNX

      When the first screen is displayed, check the vehicle condition and push "Next".

      Tech Tips

      If an error occurs during learning value reset, check the vehicle condition, and then perform learning value reset again.

      A004MRF
    5. A004OWO

      When the screen indicating reset completion is displayed, push "Exit".