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Home >> Lexus >> 2024 >> RC 350 Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 41 (Automatic Transmission System (8AR-FTS,Aa81E) - Diagnostics - Introduction (1 Of 2)) >> AUTOMATIC TRANSMISSION SYSTEM (for 8AR-FTS) >> Registration [10/2015 - ] >> Procedure

Registration [10/2015 - ]: Procedure

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  1. INPUT TRANSMISSION COMPENSATION CODE INTO ECM (Step 1) 
    NOTE:

    Transmission compensation codes are unique, 60-digit alphanumeric values printed on a QR code label on the transmission. If an incorrect transmission compensation code is input into the ECM, shift shock may occur.

    1. Record the transmission compensation code specified on the QR code label.
      GTY625759Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Transmission Compensation Code
      *2 QR Code Label

      HINT: 

      The transmission compensation code is a 60-digit alphanumeric value imprinted on the QR code label.

    2. Make sure the shift lever is in P or N.
    3. Connect the Techstream to the DLC3.
    4. Turn the engine switch on (IG).
      NOTE:

      Do not start the engine.

    5. Turn the Techstream on.
    6. Enter the following menus: Powertrain / Transmission / Utility / A/T Code Registration.

      Powertrain > Transmission > Utility 

      Tester Display
      A/T Code Registration
    7. Select "Set Compensation Code".
    8. Register the transmission compensation code.
    9. Manually input the transmission compensation code.
    10. Check that the transmission compensation code displayed on the screen is correct by comparing it with the 60-digit alphanumeric value on the QR code label.
      NOTE:

      If an incorrect transmission compensation code is input into the ECM, shift shock may occur.

    11. Press "NEXT" to register the transmission compensation code to the ECM.
  2. TRANSFER TRANSMISSION COMPENSATION CODE (Step 2) 
    NOTE:

    Transmission compensation codes are unique, 60-digit alphanumeric values printed on a QR code label on the transmission. If an incorrect transmission compensation code is input into the ECM, shift shock may occur.

    HINT: 

    The following operation is available for use when an ECM that is being replaced can still transmit its registered transmission compensation code to the Techstream.

    1. Read the transmission compensation code.
      1. Make sure the shift lever is in P or N.
      2. Connect the Techstream to the DLC3.
      3. Turn the engine switch on (IG).
        NOTE:

        Do not start the engine

      4. Turn the Techstream on.
      5. Enter the following menus: Powertrain / Transmission / Utility / A/T Code Registration.

        Powertrain > Transmission > Utility 

        Tester Display
        A/T Code Registration
      6. Select "Read Compensation Code".
        NOTE:

        Do not use the code printed on the transmission QR code label even if the transmission compensation code cannot be read using the Techstream. The code printed on an in-service transmission may not match its current characteristics. Replace the ECM with a new one and perform a road test to allow the ECM to learn the transmission characteristics.

      7. Turn the engine switch off.
      8. Replace the ECM.
    2. Register the transmission compensation code.
      1. Turn the engine switch on (IG).
        NOTE:

        Do not start the engine.

      2. Turn the Techstream on.
      3. Enter the following menus: Powertrain / Transmission / Utility / A/T Code Registration.

        Powertrain > Transmission > Utility 

        Tester Display
        A/T Code Registration
      4. Select "Set Compensation Code".
      5. Press "Open".
      6. Press "Open" again to proceed.
      7. Press "EXIT".