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

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

  1. INSTALL FRONT STEERING CONTROL ECU 
    1. Install the front steering control ECU with the 2 nuts.

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

    2. Connect the 4 connectors to the front steering control ECU.
    3. Return the floor carpet to its original position.
  2. INSTALL GLOVE COMPARTMENT DOOR ASSEMBLY 

    Refer to PROCEDURE - Step 15 [10/2020 - 10/2022] , or refer to PROCEDURE - Step 14 [10/2022 - 10/2023]

  3. INSTALL GLOVE COMPARTMENT DOOR PAD PLATE 

    Refer to PROCEDURE - Step 16 [10/2020 - 10/2022] , or refer to PROCEDURE - Step 15 [10/2022 - 10/2023]

  4. INSTALL LWR INSTRUMENT PANEL FINISH PANEL ASSEMBLY 

    Refer to PROCEDURE - Step 25 [10/2020 - 10/2022] , or refer to PROCEDURE - Step 24 [10/2022 - 10/2023]

  5. INSTALL LOWER NO. 1 INSTRUMENT PANEL PAD SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 33 [10/2020 - 10/2022] , or refer to PROCEDURE - Step 32 [10/2022 - 10/2023]

  6. INSTALL INSTRUMENT SIDE PANEL LH 

    Refer to PROCEDURE - Step 36 [10/2020 - 10/2022] , or refer to PROCEDURE - Step 35 [10/2022 - 10/2023]

  7. INSTALL LOWER NO. 2 INSTRUMENT PANEL AIRBAG ASSEMBLY 

    Refer to INSTALLATION [10/2020 - ]

  8. CONNECT NEGATIVE BATTERY TERMINAL 

    Refer to PROCEDURE - Step 2

  9. INSTALL LUGGAGE COMPARTMENT MAT SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 11

  10. 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]

  11. PERFORM VARIABLE GEAR RATIO STEERING SYSTEM CALIBRATION 

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