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Installation [10/2022 - ]: Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2025 Lexus RX 500h, 2025 Lexus RX 350, 2024 Lexus RX 500h, 2024 Lexus RX 350, and 2023 Lexus RX 500h. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSTALL NO. 2 ECM BRACKET 

    Torque: 4.5 N*m (46 kgf*cm, 40 in.*lbf) 

  2. INSTALL NO. 1 ECM BRACKET 

    Torque: 4.5 N*m (46 kgf*cm, 40 in.*lbf) 

  3. INSTALL ECM 
    1. GTY1130177Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Install the ECM with the 2 bolts and nut.

        Torque: 8.0 N*m (82 kgf*cm, 71 in.*lbf) 

        NOTE:

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

      2. Connect the 3 ECM connectors and rotate the 3 levers to lock them.
        NOTE:
        • When connecting the ECM connectors, make sure that the connecting parts of the ECM connectors are free of dirt, water and other foreign matter.
        • Be sure to securely connect the ECM connectors.
  4. INSTALL AIR CLEANER ASSEMBLY 
    1. GTY1131993Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Cutout *b Protrusion
      *c Top *d Rear of Vehicle
      *e 13 to 19 mm (0.512 to 0.748 in.) *f Pin
      1. Install the air cleaner assembly to the air cleaner hose.
        NOTE:

        Align the cutout of the air cleaner hose with the protrusion of the air cleaner assembly.

      2. Tighten the hose clamp in the position shown in the illustration.
      3. Engage the 3 pins to install the air cleaner assembly.
      4. Engage the 3 wire harness clamps.
      5. Connect the mass air flow meter sub-assembly connector.
  5. INSTALL INLET AIR CLEANER ASSEMBLY 
  6. INSTALL COOL AIR INTAKE DUCT SEAL 
  7. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL 

    Refer to PROCEDURE - Step 5

  8. VEHICLE IDENTIFICATION NUMBER (VIN) REGISTRATION 

    Refer to PROCEDURE - Step 1

  9. ECU CONFIGURATION 

    Refer to ECU CONFIGURATION [10/2022 - ]

  10. UPDATE ECU SECURITY KEY 

    Refer to UPDATE ECU SECURITY KEY [10/2022 - ]

  11. PERFORM INITIALIZATION 

    Refer to WORK PROCEDURE [10/2022 - 08/2023] , or refer to WORK PROCEDURE [08/2023 - ]

  12. INITIALIZATION AFTER RECONNECTING BATTERY TERMINAL 

    Refer to WORK PROCEDURE [10/2022 - ]

    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 [10/2022 - 08/2023] , or refer to AUTOMATIC LEARNING CHART [08/2023 - ]

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