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Home >> Lexus >> 2020 >> LS 500 Base, RWD >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Automatic Transmission System (Aga0E) - Service Information (1 Of 2) >> Shift Control Ecu >> Removal [10/2023 - ] >> Procedure

Removal [10/2023 - ]: Procedure

  1. PRECAUTION 
    WARNING:

    Be sure to read precaution thoroughly before servicing.

    Refer to PRECAUTION [10/2023 - ]

    GTY824211Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    NOTE:

    After turning the engine switch is turned off, there may be a waiting time before disconnecting the negative (-) battery terminal.

    Refer to BEFORE DISCONNECTING BATTERY [10/2023 - ]

  2. REMOVE LUGGAGE COMPARTMENT MAT SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 25

  3. REMOVE TOOL BOX 

    Refer to PROCEDURE - Step 3

  4. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    NOTE:

    It is necessary to remove the shift control ECU while no power is being supplied from the integration control supply. Therefore, perform the following procedures.

    1. Turn the engine switch off.
    2. Check that the ODO meter display has turned off.

      HINT: 

      The ODO meter continues to display for 30 seconds after turning off. Therefore, allow sufficient time for the shift control ECU to enter sleep mode and for the integration control supply to end.

    3. Disconnect the cable from the negative (-) battery terminal.
  5. REMOVE GLOVE COMPARTMENT DOOR ASSEMBLY 

    Refer to PROCEDURE - Step 32

  6. REMOVE NO. 2 AIR DUCT SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 51

  7. REMOVE SHIFT CONTROL ECU 
    NOTE:

    When disconnecting a wire harness of any component connected to the supply power of the integrated capacitor (integration control supply) or when removing the integrated capacitor (integration control supply), make sure to wait 5 minutes or more after turning the ignition switch off for self-diagnosis to complete and the voltage of the integrated capacitor (integration control supply) to discharge.

    1. Disconnect the 3 shift control ECU connectors.
      GTY799322Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 2 bolts and shift control ECU.
      GTY799320Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE NO. 1 SHIFT CONTROL ECU BRACKET 
    1. Remove the bolt and No. 1 shift control ECU bracket from the shift control ECU.
      GTY832557Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE NO. 2 SHIFT CONTROL ECU BRACKET 
    1. Remove the bolt and No. 2 shift control ECU bracket from the shift control ECU.
      GTY799321Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002