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Home >> Toyota >> 2019 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 34 (Automatic Transmission (U660F) - Diagnostics - Introduction (Except Hybrid)) >> Automatic Transaxle System >> Initialization [12/2013 - 11/2016] >> Initialization [12/2013 - 11/2016]

Initialization [12/2013 - 11/2016]

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  1. RESET TRANSAXLE COMPENSATION CODE 
    NOTE:
    • If the following parts have been replaced, initialize the TCM and perform the following "Reset Memory" and "Perform Road Test to Allow TCM to learn" steps.

      - Valve body assembly

      - Shift solenoid valve SL3

      - Shift solenoid valve SL4

      - TCM

    • The transaxle compensation code can only be initialized with the Techstream.

    HINT: 

    The TCM memorizes the condition that the ECT controls the automatic transaxle assembly according to those characteristics. Therefore, when the automatic transaxle assembly or TCM has been replaced, it is necessary to reset the memory so that the TCM can memorize the new information. The reset procedure is as follows:

    1. Move the shift lever to N or P.
    2. Turn the ignition switch off.
    3. Connect the Techstream to the DLC3.
    4. Turn the ignition switch to ON.
    5. Turn the Techstream on.
    6. Enter the following menus: Powertrain / ECT / Utility / A/T Code Reset.

      Powertrain > ECT > Utility 

      Tester Display
      A/T Code Reset
    7. Press "Next" again to proceed.
      NOTE:

      After the transaxle compensation code is initialized, perform the following "Reset Memory" and "Perform Road Test to Allow TCM to learn" steps.

    8. Press "Exit".
  2. PERFORM ROAD TEST TO ALLOW TCM TO LEARN 
    NOTE:

    Perform the following procedure while strictly observing all traffic laws and speed limits.

    1. Warm up the engine.
    2. Turn the ignition switch off.
    3. Connect the Techstream to the DLC3.
    4. Turn the ignition switch to ON.
    5. Turn the Techstream on.
    6. Enter the following menus: Powertrain / ECT / Data List / Throttle Position from EFI.

      Powertrain > ECT > Data List 

      Tester Display
      Throttle Position from EFI
    7. From a standstill, achieve highest possible speed with the accelerator pedal opened 15% or less. Keep the accelerator pedal angle steady while driving the vehicle.

      HINT: 

      "Throttle Position from EFI": 15% or less

    8. Repeat the previous step until shift shock no longer occurs.
    9. From a standstill, achieve highest possible speed with the accelerator pedal opened 25% to 35%. Keep the accelerator pedal angle steady while driving the vehicle.

      HINT: 

      "Throttle Position from EFI": 25% to 35%

    10. Repeat the previous step until shift shock no longer occurs.
  3. RESET MEMORY 
    NOTE:

    Reset Memory can be performed only with the Techstream.

    HINT: 

    The TCM (ECT) memorizes the vehicle conditions when controlling the automatic transaxle assembly and engine assembly.

    Therefore, when the automatic transaxle assembly, valve body assembly, shift solenoid valve SL3, shift solenoid valve SL4, or TCM has been replaced, it is necessary to reset the memory so that the TCM can memorize the new information. The reset procedure is as follows:

    1. Turn the ignition switch off.
    2. Connect the Techstream to the DLC3.
    3. Turn the ignition switch to ON.
    4. Turn the Techstream on.
    5. Enter the following menus: "Powertrain / ECT / Utility / Reset Memory". Then, press "Next".

      Powertrain > ECT > Utility 

      Tester Display
      Reset Memory
      NOTE:

      After performing Reset Memory, be sure to perform "Perform Road Test to Allow TCM to Learn" described earlier.

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