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Home >> Lexus >> 2015 >> GS 350 Base, AWD >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Control System - Service Information >> ECM >> Installation [09/2014 - 10/2015] >> Procedure
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Installation [09/2014 - 10/2015]: Procedure

  1. INSTALL NO. 2 ECM BRACKET 
    1. Install the No. 2 ECM bracket with the 2 screws.

      Torque: 3.0 N*m (31 kgf*cm, 27 in.*lbf) 

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

      Torque: 3.0 N*m (31 kgf*cm, 27 in.*lbf) 

  3. INSTALL ECM 
    1. Install the ECM with the 2 nuts.

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

      NOTE:
      • Install the ECM to the ECM box with the name plate facing the outside 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.
  4. CONNECT WIRE HARNESS 
    1. Connect the 6 ECM connectors.
      NOTE:

      Be sure to securely connect the connector.

    2. Connect the connector holder to the ECM box.
    3. Connect the junction connector to the connector holder.
    4. Connect the 2 connectors.
  5. INSTALL ECM COVER 
    1. Install the ECM cover with the 3 bolts.

      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.

  6. INSTALL COOL AIR INTAKE DUCT SEAL 

    Refer to PROCEDURE - Step 120

  7. INSTALL ENGINE ROOM SIDE COVER 

    Refer to PROCEDURE - Step 121

  8. 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 [09/2014 - 10/2015] ).

  9. PERFORM INITIALIZATION 

    (Refer to INITIALIZATION [09/2014 - 10/2015] )