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Home >> Lexus >> 2014 >> IS 250C Base >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Control System (Service Information) >> ECM >> Installation [08/2013 - ] >> Installation [08/2013 - ]

Installation [08/2013 - ]

  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 Nuts
      GTY145339Courtesy 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: Connecting Connector Holder To 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 [08/2013 - ] - Step 76
  4. INSTALL COOL AIR INTAKE DUCT SEAL  . Refer to INSTALLATION [08/2013 - ] - Step 78
  5. 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 [08/2013 - ] .

  6. PERFORM INITIALIZATION 
    1. Perform initialization. Refer to REGISTRATION [08/2013 - ] .
  7. REMOVE REGISTRATION 
    NOTE:

    The Vehicle Identification Number (VIN) must be input into the replacement ECM. Refer to REGISTRATION [08/2013 - ]