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Installation [10/2015 - ]: Procedure

WARNING: This page is about a different car, the 2019 Lexus GS 300, 2018 Lexus GS 300, 2017 Lexus GS 200t, and 2016 Lexus GS 200t. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSTALL NO. 2 ECM BRACKET 
    1. Install the No. 2 ECM bracket to the ECM with the 2 screws.

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

      NOTE:

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

  2. INSTALL ECM BRACKET 
    1. Install the ECM bracket to the ECM with the 2 screws.

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

      NOTE:

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

  3. INSTALL ECM 
    1. Install the ECM to the engine room ECM box.
      NOTE:
      • When installing the ECM, make sure that the stud bolt on the rear side is inserted into the hole of the ECM bracket first.
      • Make sure that the ECM is installed so that the stud bolts pass through the holes of the front and rear ECM brackets properly.
      • If the ECM has been struck or dropped, replace it.
    2. Install the ECM with the 2 nuts.

      Torque: 5.5 N*m (56 kgf*cm, 49 in.*lbf) 

      NOTE:

      Replace with a new part if it is dropped or if it receives a strong impact.

    3. Connect the connector of the engine wire to the ECM and lock with the lever.
      GTY613548Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • When connecting a connector, make sure that dirt, water and other foreign matter is not stuck between the connector and ECM.
      • Make sure that the lever is securely lowered.
    4. Connect the connector of the engine wire to the ECM and lock with the lever.
      GTY672720Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • When connecting a connector, make sure that dirt, water and other foreign matter is not stuck between the connector and ECM.
      • Make sure that the lever is securely lowered.
    5. Connect the 3 connectors and attach the claw to connect the connector holder to the engine room ECM box.
  4. INSTALL ENGINE ROOM ECU COVER 
    NOTE:
    • Make sure there is no water on or around the engine room ECU cover.
    • Perform the inspection indoors to avoid rain.
    • Be sure to prevent water from contacting the ECM (connectors and screw parts).
    1. Install the engine room ECU cover with the 3 bolts.

      Torque: 5.5 N*m (56 kgf*cm, 49 in.*lbf) 

  5. INSTALL COOL AIR INTAKE DUCT SEAL 

    Refer to PROCEDURE - Step 9

  6. INSTALL ENGINE ROOM SIDE COVER 

    Refer to PROCEDURE - Step 10

  7. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL 
    NOTE:

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

    Refer to INITIALIZATION [10/2015 - ]

  8. PERFORM INITIALIZATION 

    Refer to INITIALIZATION [10/2015 - ]

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