LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2021 >> LC 500h >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Control System - Service Information >> Steering Control Ecu >> Installation [05/2023 - ] >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Installation [05/2023 - ]: Procedure

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

      Torque: 5.5 N*m (56 kgf*cm, 49 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 16

  3. INSTALL NO. 2 INSTRUMENT PANEL GARNISH SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 29

  4. INSTALL LOWER NO. 2 INSTRUMENT PANEL AIRBAG ASSEMBLY 

    Refer to INSTALLATION [05/2023 - ]

  5. CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL 

    Refer to PROCEDURE - Step 2

  6. INSTALL NO. 2 DECK BOARD 

    Refer to PROCEDURE - Step 13

  7. PERFORM VARIABLE GEAR RATIO STEERING SYSTEM CALIBRATION 

    Refer to CALIBRATION [01/2017 - ]

  8. INITIALIZATION AFTER RECONNECTING AUXILIARY BATTERY TERMINAL 

    HINT: 

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

    Refer to AUTOMATIC LEARNING CHART [05/2023 - ]