ECD SYSTEM REGISTRATION

PROCEDURE


  1. LEARNING VALUES CONFIRMATION

    This procedure uses the GTS to display the learned values (injector compensation code and pilot quantity learning value) stored in the ECM.

    B003QJKE23

    Tech Tips


    • B003RVR

      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 GTS to the DLC3.

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

      Note

      Do not start the engine.

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


      Powertrain > Engine > Utility
      Tester Display
      Learning Values Confirmation
    4. B003LAW

      Press "Next".

    5. B003NDA

      Press "Next" again to proceed.

    6. B003PI7

      Select the value to confirm and press "Next".

    7. B003PBC

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

  2. LEARNING VALUES SAVE

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

    B003K0YE19

    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 GTS.

    • B003LFF

      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.

    • B003MVZ

      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 GTS to the DLC3.

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

      Note

      Do not start the engine.

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


      Powertrain > Engine > Utility
      Tester Display
      Learning Values Save
    4. B003OUD

      Press "Next".

    5. B003NDA

      Press "Next" again to proceed.

    6. B003MGL

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

    7. B003M91

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

    8. B003M8T

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

  3. LEARNING VALUES WRITE

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

    B003L1ME11

    Tech Tips


    • B003LNI

      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 GTS to the DLC3.

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

      Note

      Do not start the engine.

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


      Powertrain > Engine > Utility
      Tester Display
      Learning Values Write
    4. B003S3K

      Press "Next".

    5. B003LJG

      Press "Next" again to proceed.

    6. B003JJN

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

    7. B003KT8

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

    8. Confirm the contents, and then press "Next".

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

    10. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

  4. INPUT INJECTOR COMPENSATION CODE(S) INTO ECM

    B003M7OC04
    *a Example
    *b Injector Compensation Code

    Note


    • When a 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 a 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 injector injector(s) with new one(s), input compensation code(s) of the injector assembly(s) 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 only one or more injector assemblies are replaced, input the injector compensation code(s), 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 the injector compensation code(s) need to be registered. Manually clear the DTC upon completion of pilot quantity learning.


      1. Input the compensation code(s), which is/are imprinted on the head portion(s) of the new injector assembly(s), into the GTS.

      2. Input the new compensation code(s) into the ECM using the GTS.

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

      4. Wait for at least 30 seconds.

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

      6. Perform pilot quantity learning.

      7. Clear the DTC P1601 stored in the ECM using the GTS.


        Powertrain > Engine > Clear DTCs

        Note

        If the DTCs are cleared without performing pilot quantity learning, DTC P1601 is stored the next time the ignition switch is turned to ON.

    2. Register compensation codes.

      B003K9VE13

      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. B003NZV

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


        Powertrain > Engine > Utility
        Tester Display
        Injector Compensation

      5. Press Next.

      6. B003J36

        Press Next again to proceed.

      7. B003JI8

        Select "Set Compensation Code".

      8. Press Next.

      9. B003OCH

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

      10. Press Next.

      11. B003MWT

        Register compensation code.


        1. Press Input.

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

          Tech Tips

          Each injector compensation code is unique. The compensation code for each selected cylinder must be input into the GTS correctly.

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

      12. B003RMP

        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 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. 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. B003PNP

        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 GTS off.

      16. Wait for at least 30 seconds.

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

      18. Perform pilot quantity learning.

      19. Clear the DTC P1601 stored in the ECM using the GTS.


        Powertrain > Engine > Clear DTCs

        Note

        If the DTCs are cleared without performing pilot quantity learning, DTC P1601 is stored the next time the ignition switch is turned to ON.

  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 GTS to perform "Pilot Quantity Learning".

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

    B003O6PE17

    Note

    After completing this procedure, clear the DTCs using the GTS.

    Tech Tips


    • B003PQA

      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.

    • B003QVZ

      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.


    1. Connect the GTS to the DLC3.

    2. Start the engine.

    3. Turn the GTS on.

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


      Powertrain > Engine > Utility
      Tester Display
      Pilot Quantity Learning
    5. B003NDJ

      Press "Next".

    6. B003NFF

      Press "Next" again to proceed.

    7. B003R1T

      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. B003LBG

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

      Essential Conditions for Learning
      GTS Display Standard
      Coolant Temp 50 to 100°C
      Intake Air 10 to 80°C
      Fuel Temperature 20 to 96°C
      Fuel Return Temp 54 to 130°C
      Battery Voltage 10 V or higher

      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 GTS, 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. 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.

      B003LBJ

      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)
      B003J6BE11
      B003RS1E11
    10. B003PVE

      When the screen changes, push "Exit".

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

    12. Wait for at least 10 seconds.

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

    14. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

    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 GTS 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).

    B003O6PE18

    Note

    After completing this procedure, clear the DTCs using the GTS.

    Tech Tips


    • B003L4N

      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.

    • B003QVZ

      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.


    1. Connect the GTS to the DLC3.

    2. Start the engine.

    3. Turn the GTS on.

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


      Powertrain > Engine > Utility
      Tester Display
      Pilot Quantity Learning(Detail)
    5. B003NDJ

      Press "Next".

    6. B003NFF

      Press "Next" again to proceed.

    7. B003R1T

      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. B003LBG

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

      Essential Conditions for Learning
      GTS Display Standard
      Coolant Temp 50 to 100°C
      Intake Air 10 to 80°C
      Fuel Temperature 20 to 96°C
      Fuel Return Temp 54 to 130°C
      Battery Voltage 10 V or higher

      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 GTS, 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. 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.

      B003LBJ

      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)
      B003J6BE11
      B003RS1E11
    10. B003PVE

      When the screen changes, push "Exit".

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

    12. Wait for at least 10 seconds.

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

    14. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

    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 EFI-MAIN NO. 1 relay turns off after the learned value is stored in the ECM.

      • The main relay turns off within approximately 30 seconds or more 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 GTS to the DLC3.

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

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


      Powertrain > Engine > Utility
      Tester Display
      Pilot Quantity Learning Values Clear
    4. B003REB

      Press "Next".

    5. B003PEH

      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. B003L7F

      Select the cylinders whose learned value will be cleared.

      Note


      • Multiple cylinders can be selected.

      • Only the cylinders for which 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. B003S3V

      When the screen changes, push "Exit".

    9. Turn the ignition switch off, and then turn the GTS off.

    10. Wait for at least 10 seconds.

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

    12. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

    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 / Trouble Codes.


      Powertrain > Engine > Trouble Codes

    16. Read the DTCs.

    17. Confirm that no DTCs are output.

  8. DESCRIPTION OF VIN

    Note

    The Vehicle Identification Number (VIN) or frame number must be input into a replacement ECM.

    Tech Tips

    The VIN is a 17-digit alphanumeric number. The GTS is required to register the VIN.

    This registration section consists of 2 parts: Read VIN or Frame Number and Write VIN or Frame Number.


    1. Read VIN or Frame Number: This procedure allows the VIN or frame number stored in the ECM to be read in order to confirm that the VINs or frame numbers, provided on the vehicle body and stored in the vehicle ECM, are the same.

    2. Write VIN or Frame Number: This procedure allows the VIN or frame number to be written into the ECM. If the ECM is replaced, or the ECM VIN or frame number and vehicle VIN or frame number do not match, the VIN or frame number can be registered, or overwritten in the ECM by following this procedure.

  9. READ VIN OR FRAME NUMBER


    1. Confirm the vehicle VIN or frame number.

    2. Connect the GTS to the DLC3.

    3. Turn the ignition switch to ON.

    4. Turn the GTS on.

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


      Powertrain > Engine > Utility
      Tester Display
      VIN

    6. According to the display on the GTS, read the frame number or VIN stored in the ECM.

  10. WRITE VIN OR FRAME NUMBER


    1. Confirm the vehicle VIN or frame number.

    2. Connect the GTS to the DLC3.

    3. Turn the ignition switch to ON.

    4. Turn the GTS on.

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


      Powertrain > Engine > Utility
      Tester Display
      VIN

    6. According to the display on the GTS, write the vehicle frame number or VIN to the ECM.