Section 307 (Engine Control System (Service Information)): ECM: Installation: Installation

WARNING: This page is about a different car, the 2011 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

INSTALL ECM
1. Install the ECM to the engine room ECU box with the 2 nuts.
  
  Fig 1: Identifying ECM Box & Nuts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Torque: 5.5 N*m (56 kgf*cm, 49 in.*lbf)
  NOTE:
  - Install the ECM on the ECM box with the label facing away from the engine.
  - 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 the stud bolts are securely installed into the front and rear bolt holes.
2. Connect the 6 ECM connectors.
  NOTE:
  Be sure to securely connect the connector.
3. Connect the connector holder.
  
  Fig 2: Identifying Connector Holder
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSTALL ENGINE ROOM ECU COVER
1. Install the ECM cover with the 3 bolts.
  
  Fig 3: Identifying ECM Cover Bolts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Torque: 5.5 N*m (56 kgf*cm, 49 in.*lbf)
INSTALL ENGINE ROOM SIDE COVER LH . Refer to INSTALLATION - Step 93
INSTALL COOL AIR INTAKE DUCT SEAL . Refer to INSTALLATION - Step 94
INSTALL V-BANK COVER SUB-ASSEMBLY . Refer to INSTALLATION - Step 95
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 .
PERFORM INITIALIZATION
1. When replacing the ECM, some systems need to be initialized.
  - Cruise control system. Refer to INSTALLATION - Step 3
  - Engine control system See step 7
PERFORM RESET MEMORY
NOTE:
Perform RESET MEMORY (AT initialization) when replacing the ECM. Refer to INITIALIZATION .

HINT:

Initialization cannot be completed by only disconnecting and reconnecting the cable to the negative (-) battery terminal.
PERFORM REGISTRATION
NOTE:
Perform Registration (VIN registration) when replacing the ECM. Refer to REGISTRATION .

HINT:

Initialization cannot be completed by only disconnecting and reconnecting the cable to the negative (-) battery terminal.