LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2020 >> Corolla L >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 20 (Engine Control System (M20A-FKS) - Service Information (2 Of 2)) >> ECM >> Removal [11/2022 - 03/2023] >> Procedure

Removal [11/2022 - 03/2023]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. PRECAUTION 
    NOTE:

    After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal.

    Refer to BEFORE DISCONNECTING BATTERY [09/2022 - ]

  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 

    Refer to PROCEDURE - Step 2

  3. REMOVE RADIATOR SUPPORT OPENING COVER 
  4. REMOVE INLET NO. 1 AIR CLEANER 

    Refer to PROCEDURE - Step 3

  5. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE 

    Refer to PROCEDURE - Step 3

  6. REMOVE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 2

  7. REMOVE AIR CLEANER CASE SUB-ASSEMBLY 
    1. Remove the 2 bolts.
      GTY903928Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the guide to remove the air cleaner case sub-assembly.
  8. REMOVE ECM 
    1. Disengage the claw and 2 guides to remove the No. 1 relay block cover from the No. 1 engine room relay block and No. 1 junction block assembly.
      GTY903929Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the 3 connectors from the No. 1 engine room relay block and No. 1 junction block assembly.
      GTY903926Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Disengage the 2 claws to separate the engine wire from the No. 1 engine room relay block and No. 1 junction block assembly.
    4. Raise the 2 lock levers while pushing the locks on the levers, and disconnect the 2 ECM connectors.
      GTY998243Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Grommet
      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.

    5. Remove the bolt and disengage the wire harness clamp to separate the engine wire.
    6. Remove the grommet.
    7. Remove the bolt and nut.
      GTY802640Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. Disengage the guide to remove the ECM.
      NOTE:

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

  9. REMOVE NO. 2 ECM BRACKET 
    1. Remove the 2 screws and No. 2 ECM bracket from the ECM.
      GTY802636Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE NO. 1 ECM BRACKET 
    1. Remove the 2 screws and No. 1 ECM bracket from the ECM.
      GTY833286Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002