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AUTOMATIC TRANSMISSION SYSTEM INITIALIZATION

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  1. RESET MEMORY

    Note:

    • Perform Reset Memory (AT initialization) when replacing the automatic transmission assembly, transmission valve body assembly or any of the shift solenoid valves.

    • Reset Memory can be performed only with the GTS.

    Tip:

    The TCM memorizes the control conditions of the automatic transmission assembly and engine assembly. Therefore, when the automatic transmission assembly, transmission valve body assembly or any of the shift solenoid valves 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. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / ECT / Utility / Reset Memory.


      1. Powertrain > ECT > Utility
        Tester Display
        Reset Memory




      Note:

      After performing Reset Memory, be sure to perform the Road Test described earlier.

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      Tip:

      The TCM learns through the road test.

  2. ATF THERMAL DEGRADATION ESTIMATE RESET

    Note:

    If either of the following conditions is met, perform ATF Thermal Degradation Estimate Reset.


    • The ATF has been replaced.

    • Approximately 50% or more of the ATF has been replaced during a repair of the transmission or a similar operation.


    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. Enter the following menus: Powertrain / ECT / Utility / ATF Thermal Degradation Estimate Reset.


      1. Powertrain > ECT > Utility
        Tester Display
        ATF Thermal Degradation Estimate Reset