ECD SYSTEM 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 DPF catalytic converter, perform the "DPF Deterioration Record Clear" function using the intelligent tester. If the DPF catalytic converter 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 injection 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.

    A005M1IE01

    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.

    A005JLW

    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. A005H5R

      Press "Next".

    5. A005KHG

      Press "Next".

      Tech Tips

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

    6. A005JQO

      Select an item and press "Next".

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

      A005JKA

      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.

    A005L5AE04

    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.

    A005MJ1

    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.

    A005GY3

    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. A005KWQ

      Press "Next".

    5. A005IUN

      Press "Next".

      Tech Tips

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

    6. A005M3A
      A005J6L

      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. A005MJH

      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.

    A005LJWE25

    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.

    A005M65

    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.

    A005KM1

    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. A005IGA

      Press "Next".

      Tech Tips

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

    5. A005JD2

      Press "Next".

    6. A005JLK

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

    7. A005M55

      Confirm the displayed list of data settings that are completed.

    8. Press "Next".

    9. A005LQP
      A005LKV

      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

    A005HBHE01
    Example
    *1 Injector Compensation Code

    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.

    A005L8IE31

    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. A005J4I

      Press "Next".

    5. A005GKL

      Press "Next".

    6. A005LAJ

      Press "Next".

    7. A005LOI

      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. A005HHB

        Press "Input".

      2. A005I5M

        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. A005MFD

      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.

    11. A005J8B

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

    A005GCZE12

    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. A005K3B

      Press "Next".

    5. A005K2M

      Press "Next".

      Tech Tips

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

    6. A005H0H

      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. A005I6U

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

    8. A005JC6

      Confirm the display and press "Next".

    9. A005LWU

      Press "Exit" to finish this operation.