LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2023 >> LS 500 Base, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - Service Information >> ECM >> Removal [10/2023 - ] >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Removal [10/2023 - ]: Procedure

  1. PRECAUTION 
    NOTE:

    After 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. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 

    Refer to REMOVAL [10/2023 - ]

  3. REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY 

    Refer to REMOVAL [10/2020 - ]

  4. REMOVE ECM 
    1. Push in the locks on the 3 levers, raise the 3 levers, and disconnect the 3 ECM connectors.
      GTY815630Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Push
      Raise
      NOTE:

      After disconnecting the connectors, make sure that dirt, water or other foreign matter does not contact the connecting part of the connectors.

    2. Remove the bolt and nut.
      GTY817549Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the ECM.
      NOTE:

      If the ECM has been struck or dropped, replace it.

  5. REMOVE NO. 1 ECM BRACKET 
    1. Remove the 2 screws and No. 1 ECM bracket from the ECM.
      GTY786885Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. REMOVE NO. 2 ECM BRACKET 
    1. Remove the 2 screws and No. 2 ECM bracket from the ECM.
      GTY786884Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
scientia non olet · About LEMON Manuals