LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2017 >> Prius Prime Advanced >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Control System - Service Information >> ECM >> Installation [09/2016 - ] >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Installation [09/2016 - ]: Procedure

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

      Torque: 4.5 N*m (46 kgf*cm, 40 in.*lbf) 

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

      Torque: 4.5 N*m (46 kgf*cm, 40 in.*lbf) 

  3. INSTALL ECM 
    1. Install the ECM with the bolt and nut.

      Bolt 

      Torque: 13 N*m (133 kgf*cm, 10 ft.*lbf) 

      Nut 

      Torque: 8.0 N*m (82 kgf*cm, 71 in.*lbf) 

      NOTE:

      If the ECM has been struck or dropped, replace it.

    2. Install the engine wire to the No. 1 ECM bracket with the bolt.

      Torque: 8.0 N*m (82 kgf*cm, 71 in.*lbf) 

    3. Engage the 2 clamps.
    4. Connect the 2 ECM connectors and lower the 2 levers.
      GTY710435Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • When connecting the ECM connectors, make sure that the connecting parts of the ECM connectors are free of dirt, water or other foreign matter.
      • Be sure to securely connect the ECM connectors.
  4. CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL 

    Refer to PROCEDURE - Step 2 [09/2016 - 05/2019] , or refer to PROCEDURE - Step 2 [05/2019 - ]

  5. PERFORM INITIALIZATION 

    Refer to INITIALIZATION [09/2016 - 05/2019] , or refer to INITIALIZATION [05/2019 - 07/2020] , or refer to INITIALIZATION [07/2020 - ]