ECD SYSTEM REGISTRATION

PROCEDURE


  1. LEARNING VALUES CONFIRMATION

    This procedure uses the intelligent tester to display the learned values (injector compensation code, pilot quantity learning value and crank time compensation learning value) stored in the ECM.

    B001GUZE48

    Tech Tips


    • B001H6S

      A malfunction may occur when reading the values if there is a problem with the ECM, a wire harness or the connection to the DLC3. If the wire harnesses and the connection to the DLC3 are inspected and found to be normal, the ECM may be malfunctioning.


    1. Connect the intelligent tester to the DLC3.

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

      Note

      Do not start the engine.

    3. Enter the following menus: Powertrain / Engine and ECT / Utility / Learning values confirmation.

    4. B001DRX

      Press "Next".

    5. B001E3Z

      Press "Next" again to proceed.

    6. B001GCZ

      Select the value to confirm and press "Next".

    7. When the next screen is displayed, confirm the contents and press "Exit".

      B001EJ0

  2. LEARNING VALUES SAVE

    This procedure uses the intelligent tester to save the learned values (injector compensation code, pilot quantity learning value and crank time compensation learning value) stored in the ECM in the intelligent tester depending on the components being replaced.

    B001IMOE11

    Tech Tips


    • When replacing the engine assembly or the injector assembly together with the ECM, this function automatically determines the data which can be transferred (old data) and saves the data in the intelligent tester.

    • B001GZT

      When there is no data to read from the ECM, manually perform the procedure to register each compensation code and learning value in the ECM.

    • B001F4E

      A malfunction may occur when reading the values if there is a problem with the ECM, a wire harness or the connection to the DLC3. If the wire harnesses and the connection to the DLC3 are inspected and found to be normal, the ECM may be malfunctioning.


    1. Connect the intelligent tester to the DLC3.

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

      Note

      Do not start the engine.

    3. Enter the following menus: Powertrain / Engine and ECT / Utility / Learning values save.

    4. B001GQU

      Press "Next".

    5. B001GLW

      Press "Next" again to proceed.

    6. B001CS3

      Select any components being replaced and press "Next". If no applicable components are displayed, press "Next" without selecting anything.

    7. B001GYO

      If the overwrite confirmation screen is displayed, press "Overwrite".

    8. B001HXO

      When the operation is finished, confirm the date and time of the save operation, and then press "Exit".

  3. LEARNING VALUES WRITE

    This procedure uses the intelligent tester to write all of the learned values (injector compensation code, pilot quantity learning value and crank time compensation learning value) stored in the intelligent tester to the ECM.

    B001DX2E29

    Tech Tips


    • B001GEL

      A malfunction may occur when writing the values if there is a problem with the ECM, a wire harness or the connection to the DLC3. If the wire harnesses and the connection to the DLC3 are inspected and found to be normal, the ECM may be malfunctioning.


    1. Connect the intelligent tester to the DLC3.

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

      Note

      Do not start the engine.

    3. Enter the following menus: Powertrain / Engine and ECT / Utility / Learning values write.

    4. B001CPZ

      Press "Next".

    5. B001CPR

      Press "Next" again to proceed.

    6. B001FTZ

      If the "Error Learning Values Write" screen indicating a problem with the saved values or that there are no saved values is displayed, perform "Learning Values Save" again.

    7. B001DEZ

      Confirm the date and time of the save operation, and then press "Yes".

    8. B001GM4

      Confirm the contents, and then press "Next".

    9. B001D1O

      If any instructions are displayed on the tester, manually perform the procedure to register each applicable compensation code or learning value in the ECM.

    10. Clear the DTCs.

  4. INPUT INJECTOR COMPENSATION CODE(S) INTO ECM

    B001FUYE10
    Example
    *1 Injector Compensation Code

    Note


    • When an injector assembly is replaced, the new injector compensation code must be input into the ECM. When the ECM is replaced, all of the existing injector compensation codes must be input into the new ECM.

    • Injector compensation codes are unique, 30-digit, alphanumeric values printed on the head portion of each injector assembly. If an incorrect injector compensation code is input into the ECM, the engine assembly may rattle or engine idling may become rough. In addition, engine failure may occur and the life of the engine may be shortened.

    • When an injector compensation code is input into the ECM, the pilot quantity learning values stored in the ECM are initialized. Also, DTC P1601 is stored when the pilot quantity learning values are initialized.


    1. After replacing one or more injectors assembly with new ones, input the compensation codes of the injector assemblies into the ECM as follows:

      Tech Tips


      • Each injector assembly has different fuel injection characteristics. In order to optimize the fuel injections, the ECM uses the compensation codes to balance the different fuel injections between each injector assembly.

      • When one or more injector assemblies are replaced, input the injector compensation codes, perform pilot quantity learning, and then clear the DTCs.

      • When the ignition switch is turned to ON after replacing the ECM, DTC P1601 is stored. This indicates that one or more injector compensation codes need to be registered. Manually clear the DTC upon completion of pilot quantity learning.


      1. Input the compensation codes, which are imprinted on the head portions of the new injector assemblies, into the intelligent tester.

      2. Input the new compensation codes into the ECM using the tester.

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

      4. Wait for at least 30 seconds.

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

      6. Perform pilot quantity learning.

      7. Clear DTC P1601 stored in the ECM using the tester Click here.

        Note

        If the DTCs are cleared without performing pilot quantity learning, DTC P1601 is stored immediately after clearing DTCs.

    2. Register compensation codes.

      B001DYKE36

      1. Connect the intelligent tester to the DLC3.

      2. Turn the ignition switch to ON.

        Note

        Do not start the engine.

      3. Turn the tester on.

      4. B001HQ5

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

      5. Press "Next".

      6. B001CUM

        Press "Next" again to proceed.

      7. B001H1W

        Select "Set Compensation Code".

      8. Press "Next".

      9. B001G6H

        Select the number of the cylinder corresponding to the injector compensation code that you want to register.

      10. Press "Next".

      11. B001EVK

        Register compensation code.


        1. Press "Input".

        2. B001HUB

          Manually input the cylinder compensation code using the keyboard on the tester screen. The code is a 30-digit, alphanumeric value printed on the head portion of the injector assembly.

          Tech Tips

          Each injector compensation code is unique. 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".

      12. B001GS4

        Check that the compensation code displayed on the screen is correct by comparing it with the 30-digit alphanumeric value on the head portion 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 an incorrect 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. Check the ECM and repeat this operation.

      13. 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.

      14. B001G0U

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

      15. Turn the ignition switch off, and then turn the tester off.

      16. Wait for at least 30 seconds.

      17. Turn the ignition switch to ON, and then turn the tester on.

      18. Perform pilot quantity learning.

      19. Clear DTC P1601 stored in the ECM using the tester (See page ).

        Note

        If the DTCs are cleared without performing pilot quantity learning, DTC P1601 is stored immediately after clearing DTCs.

  5. PILOT QUANTITY LEARNING


    • "Pilot Quantity Learning" is performed when injector assemblies have been replaced and injector compensation codes have been registered. "Pilot Quantity Learning (Detail)" is performed when there are engine problems but no DTCs are output and the technician wishes to clear the learned values and have the vehicle relearn the values.

    • This procedure uses the intelligent tester to perform "Pilot Quantity Learning".

    • When replacing the injector assembly, engine or ECM, perform this procedure after performing injector compensation (manual ID code registration).

    B001GFUE06

    Note

    After completing this procedure, clear the DTCs using the intelligent tester.

    Tech Tips


    • B001H58

      If "Exit" is pushed during the step where the accelerator pedal is operated and "Pilot Quantity Learning" is canceled, turn the ignition switch off, wait 10 seconds, check the vehicle condition, and then perform learning again.

    • If an error occurs during learning, check the vehicle condition after turning the ignition switch off, and then perform learning again.

    • If learning is canceled and DTCs are output due to excessive racing of the engine (depressing the accelerator pedal for 2 seconds or more), turn the ignition switch off, and then perform learning again.

    • B001DVN

      A communication malfunction may occur if there is a problem with the ECM, a wire harness or the connection to the DLC3. If the wire harnesses and the connection to the DLC3 are inspected and found to be normal, the ECM may be malfunctioning.

    Click here


    1. Connect the intelligent tester to the DLC3.

    2. Start the engine.

    3. Turn the tester on.

    4. Enter the following menus: Powertrain / Engine and ECT / Utility / Pilot quantity learning.

    5. B001EX5

      Press "Next".

    6. B001I92

      Press "Next" again to proceed.

    7. B001HH6

      Confirm that the atmospheric pressure screen is displayed.


      1. Confirm the displayed atmospheric pressure.

        Standard
        Atmosphere Pressure is 70 kPa or more

        Note


        • If the atmospheric pressure is below the standard range, "Pilot Quantity Learning" cannot be performed. In this case, press "Exit" and clear the learned values using "Pilot Quantity Learning Value Clear".

        • If the atmospheric pressure is below the standard range, even if "Pilot Quantity Learning" is performed, learning will not be completed.

      2. If the atmospheric pressure is within the standard range, proceed to the next screen.

    8. B001FPB

      Confirm the condition of the engine and wait until learning can be performed.

      Essential Conditions for Learning
      Tester Display Standard
      Coolant Temp 70 to 100°C
      Intake Air 10 to 120°C
      Fuel Temperature 30 to 96°C
      Fuel Return Temp 64 to 130°C
      Battery Voltage 10 V or higher
      Reju Pilot Quantity Learning READY

      Tech Tips


      • If the values deviate from the standard above, "Pilot Quantity Learning" enters a standby state or is canceled.

      • When the essential conditions to perform learning are met, the screen will change automatically.

      Note


      • Using the intelligent tester, make sure that DTCs other than DTC P1601 are not output.

      • If DTCs other than DTC P1601 are output, perform troubleshooting for those DTCs.

      Tech Tips

      DTC P1601 is stored when the value registered in the ECM for an input injector compensation code and/or pilot quantity deterioration learning value is the initial value.

    9. B001EQC
      B001GDK

      Follow the prompts on the screen and repeat the following procedure until the screen changes: Starting with the engine idling, race the engine until the engine speed is 3000 rpm or more for no more than 2 seconds, and then let the engine return to idling.

      Tech Tips


      • After confirming that the engine speed has reached 3000 rpm, completely release the accelerator pedal in order for the throttle opening amount to become 0%.

      • It is possible to confirm the status of the learning operation during "Pilot Quantity Learning" by observing the blinking pattern of the glow indicator light.

      Glow Indicator Light Blinking Pattern
      Learning Status Glow Indicator Light Condition
      Conditions essential to start learning have not been met Blinking at 0.5 second intervals
      Conditions essential to start learning have been met Blinking at 1 second intervals
      During racing (learning is being performed) Blinking at 1 second intervals
      Learning is finished Off
      Learning has been canceled Blinking at 1.5 second intervals
      Learning has been canceled (malfunctioning cylinder is indicated by blinking pattern) Blinking at 0.8 second intervals (2.3 second intervals between each set of blinks representing the number of a malfunctioning cylinder)
      B001FJBE31
      B001GDXE26
    10. B001G0D

      When the screen changes, push "Exit".

    11. Turn the ignition switch off, and then turn the tester off.

    12. Wait for at least 10 seconds.

    13. Turn the ignition switch to ON, and then turn the tester on.

    14. Clear the DTCs (See page ).

    15. Turn the ignition switch off.

      Note

      Do not disconnect the cable from the negative (-) battery terminal for 30 seconds after turning the ignition switch off.

      Tech Tips


      • The main relay turns off after the learned value is stored in the ECM.

      • The main relay turns off within approximately 5 to 10 seconds of turning the ignition switch off.

  6. PILOT QUANTITY LEARNING (DETAIL)


    • "Pilot Quantity Learning" is performed when injector assemblies have been replaced and injector compensation codes have been registered. "Pilot Quantity Learning (Detail)" is performed when there are engine problems but no DTCs are output and the technician wishes to clear the learned values and have the vehicle relearn the values.

      It takes time to clear the learned values and perform learning for all cylinders.

    • This procedure uses the intelligent tester to perform "Pilot Quantity Learning (Detail)".

    • When replacing the injector assembly, engine or ECM, perform this procedure after performing injector compensation (manual ID code registration).

    B001GFUE07

    Note

    After completing this procedure, clear the DTCs using the intelligent tester.

    Tech Tips


    • B001FLT

      If "Exit" is pushed during the step where the accelerator pedal is operated and "Pilot Quantity Learning (Detail)" is canceled, turn the ignition switch off, wait 10 seconds, check the vehicle condition, and then perform learning again.

    • If an error occurs during learning, check the vehicle condition after turning the ignition switch off, and then perform learning again.

    • If learning is canceled and DTCs are output due to excessive racing of the engine (depressing the accelerator pedal for 2 seconds or more), turn the ignition switch off, and then perform learning again.

    • B001EM9

      A communication malfunction may occur if there is a problem with the ECM, a wire harness or the connection to the DLC3. If the wire harnesses and the connection to the DLC3 are inspected and found to be normal, the ECM may be malfunctioning.

    Click here


    1. Connect the intelligent tester to the DLC3.

    2. Start the engine.

    3. Turn the tester on.

    4. Enter the following menus: Powertrain / Engine and ECT / Utility / Pilot quantity learning (Detail).

    5. B001HXY

      Press "Next".

    6. B001HWL

      Press "Next" again to proceed.

    7. B001E95

      Confirm that the atmospheric pressure screen is displayed.


      1. Confirm the displayed atmospheric pressure.

        Standard
        Atmosphere Pressure is 70 kPa or more

        Note


        • If the atmospheric pressure is below the standard range, "Pilot Quantity Learning" cannot be performed. In this case, press "Exit" and clear the learned values using "Pilot Quantity Learning Value Clear".

        • If the atmospheric pressure is below the standard range, even if "Pilot Quantity Learning" is performed, learning will not be completed.

      2. If the atmospheric pressure is within the standard range, proceed to the next screen.

    8. B001ETE

      Confirm the condition of the engine and wait until learning can be performed.

      Essential Conditions for Learning
      Tester Display Standard
      Coolant Temp 70 to 100°C
      Intake Air 10 to 120°C
      Fuel Temperature 30 to 96°C
      Fuel Return Temp 64 to 130°C
      Battery Voltage 10 V or higher
      Reju Pilot Quantity Learning READY

      Tech Tips


      • If the values deviate from the standard above, "Pilot Quantity Learning (Detail)" enters a standby state or is canceled.

      • When the essential conditions to perform learning are met, the screen will change automatically.

      Note


      • Using the intelligent tester, make sure that DTCs other than DTC P1601 are not output.

      • If DTCs other than DTC P1601 are output, perform troubleshooting for those DTCs.

      Tech Tips

      DTC P1601 is stored when the value registered in the ECM for an input injector compensation code and/or pilot quantity deterioration learning value is the initial value.

    9. B001F6P
      B001GZ9

      Follow the prompts on the screen and repeat the following procedure until the screen changes: Starting with the engine idling, race the engine until the engine speed is 3000 rpm or more for no more than 2 seconds, and then let the engine return to idling.

      Tech Tips


      • After confirming that the engine speed has reached 3000 rpm, completely release the accelerator pedal in order for the throttle opening amount to become 0%.

      • It is possible to confirm the status of the learning operation during "Pilot Quantity Learning (Detail)" by observing the blinking pattern of the glow indicator light.

      Glow Indicator Light Blinking Pattern
      Learning Status Glow Indicator Light Condition
      Conditions essential to start learning have not been met Blinking at 0.5 second intervals
      Conditions essential to start learning have been met Blinking at 1 second intervals
      During racing (learning is being performed) Blinking at 1 second intervals
      Learning is finished Off
      Learning has been canceled Blinking at 1.5 second intervals
      Learning has been canceled (malfunctioning cylinder is indicated by blinking pattern) Blinking at 0.8 second intervals (2.3 second intervals between each set of blinks representing the number of a malfunctioning cylinder)
      B001FJBE31
      B001GDXE26
    10. B001I05

      When the screen changes, push "Exit".

    11. Turn the ignition switch off, and then turn the tester off.

    12. Wait for at least 10 seconds.

    13. Turn the ignition switch to ON, and then turn the tester on.

    14. Clear the DTCs (See page ).

    15. Turn the ignition switch off.

      Note

      Do not disconnect the cable from the negative (-) battery terminal for 30 seconds after turning the ignition switch off.

      Tech Tips


      • The main relay turns off after the learned value is stored in the ECM.

      • The main relay turns off within approximately 5 to 10 seconds of turning the ignition switch off.

  7. PILOT QUANTITY LEARNING VALUE CLEAR

    Tech Tips


    • If the atmospheric pressure is below the threshold value, "Pilot Quantity Learning" will not be completed and DTC P1601 is stored. After "Pilot Quantity Learning Value Clear" is performed, DTC P1601 will not be stored.

    • Clear the learned values using the following procedure.


    1. Connect the intelligent tester to the DLC3.

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

    3. Enter the following menus: Powertrain / Engine and ECT / Utility / Pilot Quantity Learning Value Clear

    4. B001CX9

      Press "Next".

    5. B001FRF

      Confirm that the atmospheric pressure screen is displayed.


      1. Confirm the displayed atmospheric pressure.

        Standard
        Atmosphere Pressure is below 70 kPa

        Note


        • If the atmospheric pressure is higher than the standard range for performing "Pilot Quantity Learning Value Clear", do not clear the learned values. Instead, perform "Pilot Quantity Learning".

        • When the atmospheric pressure is higher than the standard range, perform "Pilot Quantity Learning" without initializing the learned values using "Pilot Quantity Learning Value Clear". If the learned values are initialized when the atmospheric pressure is higher than the standard range, the following symptoms may appear. Be sure to correctly follow procedures.


          • Driveability problems

          • Rough idle

          • Emission of white or black smoke, etc.

      2. Proceed to the next screen.

    6. B001F6L

      Select the cylinders whose learned value will be cleared.

      Note


      • Multiple cylinders can be selected.

      • Only the cylinders for which fuel injector compensation codes have been written must have their learned value cleared.

    7. After selecting the cylinders whose learned value will be cleared, press "Next" to begin the initialization.

    8. B001GP1

      When the screen changes, push "Exit".

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

    10. Wait for at least 10 seconds.

    11. Turn the ignition switch to ON, and then turn the tester on.

    12. Clear the DTCs Click here.

    13. Turn the ignition switch off and leave the vehicle for 30 seconds or more.

    14. Turn the ignition switch to ON for 1 second.

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

    16. Read the DTCs.

    17. Confirm that no DTCs are output.

  8. DESCRIPTION OF VIN

    Note

    The Vehicle Identification Number (VIN) must be input into the replacement ECM.

    Tech Tips

    The VIN is a 17-digit alphanumeric number. An intelligent tester is required to register the VIN.

    This registration section consists of two parts, Read VIN and Write VIN.


    1. Read VIN: Explains the VIN reading process in a flowchart. This process allows the Vin stored in the ECM to be read, in order to confirm that the two VINs, provided with the vehicle and stored in the vehicle's ECM, are the same.

    2. Write VIN: Explains the VIN writing process in a flowchart. This process allows the VIN to be input into the ECM. If the ECM is changed, or the ECM VIN and vehicle VIN do not match, the VIN can be registered, or overwritten in the ECM by following this procedure.

  9. READ VIN


    1. Confirm the vehicle VIN.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the ignition switch to ON.

    4. Turn the tester on.

    5. Enter the following menus: Powertrain / Engine and ECT / Utility / VIN / VIN Read.

  10. WRITE VIN


    1. Confirm the vehicle VIN.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the ignition switch to ON.

    4. Turn the tester on.

    5. Enter the following menus: Powertrain / Engine and ECT / Utility / VIN / VIN Write.