Automatic Transmission System Initialization

Drivetrain. Land Cruiser. Urj200, 202 Grj200 Vdj200
Ae80F Automatic Transmission Transaxle. Land Cruiser. Urj200, 202 Grj200 Vdj200

  1. RESET MEMORY

  1. ATF THERMAL DEGRADATION ESTIMATE RESET

Automatic Transmission System -- Initialization



RESET MEMORY
NOTICE:
  1. Perform Reset Memory (AT initialization) when replacing the automatic transmission assembly, transmission valve body assembly or any of the shift solenoid valves.
  2. Reset Memory can be performed only with the GTS.
HINT:
The TCM memorizes the vehicle conditions when the ECT controls the automatic transmission assembly and transmission valve body 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 engine switch on (IG).

  3. Turn the GTS on.

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

    NOTICE:
    After performing Reset Memory, be sure to perform the Road Test described earlier (Click here).
    HINT:
    The TCM learns through the Road Test.

ATF THERMAL DEGRADATION ESTIMATE RESET
NOTICE:
If either of the following conditions is met, perform ATF Thermal Degradation Estimate Reset.
  1. The ATF has been replaced.
    HINT:
    If 50000 or more is displayed for the Data List item "ATF Thermal Degradation Estimate", thermal degradation of the ATF is suspected. Perform ATF Thermal Degradation Estimate Reset after replacing the ATF.
  2. 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 engine switch on (IG).

    NOTICE:
    Do not start the engine.

  3. Turn the GTS on.

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