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Section 441 (Engine Control (Service Information)): ECM: Installation: Installation

WARNING: This page is about a different car, the 2010 Lexus IS 350C. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSTALL ECM 
    1. Install the ECM to the ECM box.
      Fig 1: Installing ECM To ECM Box
      GTY145302Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • Install the ECM to the ECM box with the name plate facing the inside of the vehicle.
      • Make sure that there is no foreign matter on the gasket surface of the ECM box.
      • Insert the stud bolt on the vehicle rear side to the ECM first.
      • Make sure that stud bolts are securely installed into the front and rear bolt holes.
    2. Install the 2 nuts.
      Fig 2: Identifying ECM
      GTY140217Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

      NOTE:

      Be sure to first tighten the nut on the vehicle rear.

    3. Connect the ECM connectors.
      1. Connect the 6 ECM connectors.
        NOTE:

        Be sure to securely connect the connector.

      2. Connect the connector holder to the ECM box.
        Fig 3: View Of Connecting The Connector Holder To The ECM Box
        GTY257220Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSTALL ECM COVER 
    1. Install the ECM cover with the 3 bolts.
      Fig 4: Identifying ECM Cover Bolts
      GTY133431Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

      NOTE:

      Make sure that the wire harness does not get caught between the parts.

  3. INSTALL ENGINE ROOM SIDE COVER LH  . Refer to INSTALLATION - Step 79
  4. INSTALL COOL AIR INTAKE DUCT SEAL  . Refer to INSTALLATION - Step 81
  5. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL 
  6. PERFORM INITIALIZATION 
    NOTE:

    After replacing the ECM on vehicles with a dynamic radar cruise control system, it is necessary to initialize the ECM so that the ECM can recognize the dynamic radar cruise control system.

    1. Perform initialization See step  6.
  7. PERFORM REGISTRATION 
    NOTE:

    The Vehicle Identification Number (VIN) must be input into the replacement ECM. Refer to REGISTRATION .

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