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.


      Powertrain > Engine and ECT > Utility
      Tester Display
      Supply Pump Learning Value Reset
    5. A01LWS2

      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.

      A01LV29
    6. A01LYLL

      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.


      Powertrain > Engine and ECT > Utility
      Tester Display
      EGR Learning Value Reset
    5. A01LVTN

      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.

      A01LYXF
    6. A01LYK5

      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 sub-assembly learning value and deterioration compensation stored in the ECM upon replacing the mass air flow meter sub-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 / Air Flow Meter Learning Value Reset.


      Powertrain > Engine and ECT > Utility
      Tester Display
      Air Flow Meter Learning Value Reset
    5. A01M39O
      A01M0JW

      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. A01LYQM

      Press "Next".

    7. A01LV3D

      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.


      Powertrain > Engine and ECT > Utility
      Tester Display
      DPF History Information Reset
    4. A01M1LS

      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.

      A01LVI1
    5. A01M1TZ

      Press "Next".

    6. A01M0B0

      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.


      Powertrain > Engine and ECT > Utility
      Tester Display
      O2 Sensor Learning Value Reset
    4. A01LZAB

      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.

      A01M2JM
    5. A01M1I1

      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.


      Powertrain > Engine and ECT > Utility
      Tester Display
      Differential Pressure Learning Value Reset
    4. A01M1GI

      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.

      A01M1P3
    5. A01LXSP

      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.


      Powertrain > Engine and ECT > Utility
      Tester Display
      Swirl Valve Learning Value Reset
    4. A01LXS4

      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.

      A01LXPQ
    5. A01LWSF

      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.


      Powertrain > Engine and ECT > Utility
      Tester Display
      Upstream Turbine Pressure Learning Value Reset
    4. A01M08T

      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.

      A01LXBL
    5. A01M27H

      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.


      Powertrain > Engine and ECT > Utility
      Tester Display
      NOx Storage Catalyst Learning Value Reset
    4. A01LXLK

      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.

      A01LVMQ
    5. A01M0DB

      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.


      Powertrain > Engine and ECT > Utility
      Tester Display
      Fuel PCV Compensation Value Reset
    4. A01LY11

      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.

      A01LZEE
    5. A01LWKU

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