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

1. Install the ECM to the engine room ECU box with the 2 nuts.
   Fig 1: Locating ECM 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: Locating Connector Holder

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Install the ECM cover with the 3 bolts.
   Fig 3: Locating ECM Cover Bolts

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

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

HINT: 

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

HINT: 

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