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Home >> Lexus >> 2021 >> LS 500 Base, AWD >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Dynamic Rear Steering System - Service Information >> Dynamic Rear Steering Ecu >> Installation [10/2020 - 10/2023] >> Procedure

Installation [10/2020 - 10/2023]: Procedure

  1. INSTALL REAR STEERING CONTROL ECU 
    1. Install the rear steering control ECU with the 3 nuts.

      Torque: 7.5 N.m (76 kgf/cm, 66 in.lbf) 

    2. Connect the 3 connectors to the rear steering control ECU.

      HINT: 

      When connecting the connector with lock lever, return the lock lever to its original position and securely push in the lock of the lock lever as shown in the illustration.

      GTY802776Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Lock of the Lock Lever
      *b Lock Lever
    3. Disengage the clamp.
  2. INSTALL BATTERY CARRIER CATCH BRACKET SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 5

  3. INSTALL LOWER INNER LUGGAGE COMPARTMENT TRIM COVER 

    Refer to PROCEDURE - Step 7

  4. INSTALL LUGGAGE COMPARTMENT FLOOR MAT 

    Refer to PROCEDURE - Step 12

  5. INSTALL TOOL BOX 

    Refer to PROCEDURE - Step 8

  6. CONNECT NEGATIVE BATTERY TERMINAL 

    Refer to PROCEDURE - Step 2

  7. INSTALL LUGGAGE COMPARTMENT MAT SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 11

  8. INITIALIZATION AFTER RECONNECTING BATTERY TERMINAL 

    Refer to WORK PROCEDURE [10/2020 - 10/2022] , or refer to WORK PROCEDURE [10/2022 - 10/2023]

    HINT: 

    When disconnecting and reconnecting the battery, there is an automatic learning function that completes learning when the respective system is used.

    Refer to AUTOMATIC LEARNING CHART [10/2020 - 10/2023]

  9. PERFORM DYNAMIC REAR STEERING SYSTEM CALIBRATION 

    Refer to CALIBRATION [12/2017 - 10/2023]