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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 [12/2017 - 10/2020] >> Procedure

Installation [12/2017 - 10/2020]: 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. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL 

    Refer to PROCEDURE - Step 2

    NOTE:

    When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

    Refer to INITIALIZATION [12/2017 - 09/2018] , or refer to INITIALIZATION [09/2018 - 10/2020]

  8. INSTALL LUGGAGE COMPARTMENT MAT SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 11

  9. PERFORM DYNAMIC REAR STEERING SYSTEM CALIBRATION 

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