ECD SYSTEM(w/o DPF) REGISTRATION

CAUTION / NOTICE / HINT

Tech Tips


  • When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the intelligent tester. 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 tester display.

  • After replacing any of the injector assemblies, perform both the "Injector Compensation" and the "Pilot Quantity Learning Values Reset" functions using the intelligent tester. If any of the injector assemblies and the ECM are replaced at the same time, perform the same initialization/registrations as when replacing the ECM.

  • After replacing the air fuel ratio sensor, perform the "A/F Sensor Compensation Reset" function using the intelligent tester. If the air fuel ratio sensor and the ECM are replaced at the same time, perform the same initialization/registrations as when replacing the ECM.

  • After replacing the engine assembly, perform both the "Injector Compensation" and the "Pilot Quantity Learning Values Reset" functions using the intelligent tester. If the engine assembly and the ECM are replaced at the same time, perform the same initialization/registrations as when replacing the ECM.

  • If the "Learning Values Save" or "Learning Values Write" function has failed, input manually the injector compensation codes and the vehicle mileage using the "Injector Compensation" and "Vehicle Mileage Write" functions by following the instructions shown on the intelligent tester display.

PROCEDURE


  1. LEARNING VALUES CONFIRMATION

    Tech Tips

    This function is used for reading a learning value(s) that is input correctly.

    A01VG23E47

    Tech Tips

    This process may fail due to a problem with the wire harness or a bad connection with the DLC3. Check the wire harness and DLC3 connection. If no problem is found with either, the ECM may be malfunctioning.

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    1. Connect the intelligent tester to the DLC3.

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

    3. Enter the following menus: Powertrain / Engine and ECT / Utility / Learning Values Confirmation.

    4. A01VH86

      Press "Next".

    5. A01VHF2

      Press "Next".

      Tech Tips

      Confirm that the ignition switch is ON and the engine is stopped.

    6. A01VHNH

      Select an item and press "Next".

    7. Confirm the compensation code or the learning value(s), that is selected.

      A01VHT3

      Tech Tips


      • If you want to confirm other items continuously, press "Back" to return to the previous display.

      • To finish this function, press "Exit".

  2. LEARNING VALUES SAVE

    Tech Tips

    This function is used for saving data from the ECM to the intelligent tester depending on the replaced parts.

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    Tech Tips

    This process may fail due to a problem with the wire harness or a bad connection with the DLC3. Check the wire harness and DLC3 connection. If no problem is found with either, the ECM may be malfunctioning.

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    Tech Tips

    If the ECM data cannot be read for some reason, input the vehicle mileage to a new ECM using the "Vehicle Mileage Write" function.

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    1. Connect the intelligent tester to the DLC3.

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

    3. Enter the following menus: Powertrain / Engine and ECT / Utility / Learning Values Save.

    4. A01VL0E

      Press "Next".

    5. A01VEF5

      Press "Next".

      Tech Tips

      Confirm that the ignition switch is ON and the engine is stopped.

    6. A01VLIY
      A01VLWA

      Select item(s) for the replaced parts and press "Next".

      Tech Tips

      If the message appears for asking the data overwrite, press "Overwrite" to proceed to next step.

    7. A01VIUC

      Confirm the "Saved Date", and press "Exit" to finish this operation.

  3. LEARNING VALUES WRITE

    Tech Tips

    This function is used for writing the saved data from the intelligent tester to the ECM.

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    Tech Tips

    This process may fail due to a problem with the wire harness or a bad connection with the DLC3. Check the wire harness and DLC3 connection. If no problem is found with either, the ECM may be malfunctioning.

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    Tech Tips

    If the saved data cannot be written into a new ECM for some reason, input the vehicle mileage to the ECM using the "Vehicle Mileage Write" function.

    A01VEEH

    1. Connect the intelligent tester to the DLC3.

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

    3. Enter the following menus: Powertrain / Engine and ECT / Utility / Learning Values Write.

    4. A01VII8

      Press "Next".

      Tech Tips

      Confirm that the ignition switch is ON and the engine is stopped.

    5. A01VDIJ

      Press "Next".

    6. A01VLAI

      Confirm the "Saved Date", and press "Yes".

    7. A01VH8W

      Confirm the displayed list of data settings that are completed.

    8. Press "Next".

    9. A01VLXX
      A01VL8B

      Confirm the displayed list of data settings that need manual initialization and/or registration.

      Tech Tips

      If the message of "All settings are completed." is displayed, press "Exit" to finish this operation.

  4. INJECTOR COMPENSATION

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    Note

    Injector compensation codes are 12-digit, alphanumeric values printed on the head of each injector assembly. If an incorrect injector compensation code is input into the ECM, the engine may rattle or engine idling may become rough. In addition, engine failure may occur and the life of the engine may be shortened.

    Text in Illustration
    *a Example
    *b Injector Compensation Code
    A01VG8EE32

    1. Connect the intelligent tester to the DLC3.

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

      Tech Tips

      Confirm that the ignition switch is ON and the engine is stopped.

    3. Enter the following menus: Powertrain / Engine and ECT / Utility / Injector Compensation.

    4. A01VI6L

      Press "Next".

    5. A01VJKK

      Press "Next".

    6. A01VFJU

      Press "Next".

    7. A01VG2F

      Select the number of the cylinder corresponding to the injector compensation code that you want to input, and press "Next".

    8. Register the compensation code.


      1. A01VEOE

        Press "Input".

      2. A01VIJD

        Manually input the cylinder compensation code using the keyboard on the tester screen. The code is a 12-digit, alphanumeric value printed on the injector head.

        Tech Tips

        The compensation code for each selected cylinder must be input into the tester correctly.

      3. Confirm that the compensation code for the selected cylinder is correct, and then press OK.

    9. A01VM1N

      Check that the compensation code displayed on the screen is correct by comparing it with the 12-digit alphanumeric value on the head of the injector assembly.

      Note

      If an incorrect injector compensation code is input into the ECM, the engine may rattle or engine idling may become rough. In addition, engine failure may occur and the life of the engine may be shortened.

      Tech Tips


      • If a wrong compensation code is input or read, return to the Input Value screen by pressing Input.

      • The saving process may fail due to a problem with the wire harness or a bad connection with the DLC3. Check the wire harness and DLC3 connection. If no problem is found with either, the ECM may be malfunctioning.

    10. Press Next to register the compensation code in the ECM.

      Tech Tips


      • If the registration process fails, the compensation code may be incorrect. Check the compensation code again.

      • If the input compensation code fails to register even though it is input correctly, there may be a problem with the wire harness or a bad connection with the DLC3. Check the wire harness and DLC3 connection. If no problem is found with either, the ECM may be malfunctioning. Check the ECM and restart this operation.

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      If you want to continue with other compensation code registrations, press "Next". To finish the registration, press "Exit".

    12. Turn the ignition switch off and turn the tester off.

    13. Wait for at least 30 seconds.

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

    15. Clear the DTC P0603 stored in the ECM using the tester.

  5. VEHICLE MILEAGE WRITE

    Tech Tips

    If Pilot Quantity Learning Values cannot be saved or written using the intelligent tester, the ECM estimates the Pilot Quantity Learning Values based on the traveled distance using this function.

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    1. Connect the intelligent tester to the DLC3.

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

    3. Enter the following menus: Powertrain / Engine and ECT / Utility / Vehicle Mileage Write.

    4. A01VE90

      Press "Next".

    5. A01VLYZ

      Press "Next".

      Tech Tips

      Confirm that the ignition switch is ON and the engine is stopped.

    6. A01VK9P

      Select item(s) for the replaced parts and press "Next".

      Tech Tips

      Multiple items can be selected. However the "Engine ECU" is always in the selected state and cannot be unselected.

    7. A01VI1E

      Check the actual vehicle mileage and select the adequate range, and press "Next".

    8. A01VF3H

      Confirm the display and press "Next".

    9. A01VJNH

      Press "Exit" to finish this operation.