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Removal [10/2017 - 08/2020]: Procedure

  1. PRECAUTION 
    NOTE:
    • After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

      Refer to PRECAUTION [02/2017 - 05/2018] , or refer to PRECAUTION [05/2018 - ]

    • Perform the Vehicle Identification Number (VIN) registration when replacing the ECM. (w/ Canister Pump Module)

      Refer to REGISTRATION [02/2017 - ]

    • Perform the Vehicle Identification Number (VIN) registration when replacing the ECM. (w/o Canister Pump Module)

      Refer to REGISTRATION [10/2017 - 12/2021]

  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 

    Refer to PROCEDURE - STEP 1

    NOTE:

    When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

    Refer to INITIALIZATION [10/2017 - 05/2018] , or refer to INITIALIZATION [05/2018 - 09/2019] , or refer to INITIALIZATION [09/2019 - 08/2020]

  3. REMOVE NO. 2 CYLINDER HEAD COVER 

    See step  1

  4. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE 

    See step  3

  5. REMOVE RADIATOR COVER 

    Refer to PROCEDURE - STEP 1 [10/2017 - 09/2019] , or refer to PROCEDURE - STEP 1 [09/2019 - ]

  6. REMOVE NO. 1 AIR CLEANER INLET 

    Refer to PROCEDURE - STEP 6 [10/2017 - 05/2018] , or refer to PROCEDURE - STEP 6 [05/2018 - 09/2019] , or refer to PROCEDURE - STEP 6 [09/2019 - 12/2021]

  7. REMOVE AIR CLEANER CASE SUB-ASSEMBLY 
    1. Remove the air cleaner filter element sub-assembly from the air cleaner case sub-assembly.
      GTY767492Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 2 bolts and air cleaner case sub-assembly from the vehicle.
      GTY767491Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE ECM 
    1. Raise the 2 levers while pushing the locks on the levers, and disconnect the 2 ECM connectors.
      GTY767294Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      After disconnecting the ECM connectors, make sure that dirt, water or other foreign matter does not contact the connecting parts of the ECM connectors.

    2. Remove the No. 1 relay block cover from the No. 1 engine room relay block.
      GTY774462Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Disconnect the 3 connectors from the engine room relay block assembly.
      GTY767289Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Disengage the 2 claws to separate the engine wire from the No. 1 engine room relay block.
    5. Remove the bolt, nut and ECM.
      GTY767293Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

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

  9. REMOVE NO. 1 ECM BRACKET 
    1. Remove the 2 screws and No. 1 ECM bracket from the ECM.
      GTY767291Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE NO. 2 ECM BRACKET 
    1. Remove the 2 screws and No. 2 ECM bracket from the ECM.
      GTY767286Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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