ECM REMOVAL

CAUTION / NOTICE / HINT

Note


  • Perform the Vehicle Identification Number (VIN) registration when replacing the ECM.


  • Before replacing the ECM, refer to Service Bulletin.

  • After turning the engine 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.

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PROCEDURE


  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

    Note

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

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  2. REMOVE ENGINE ROOM ECU COVER

    Note


    • Remove all water on and around the engine room ECU cover.

    • Perform the inspection indoors to avoid rain.

    • Be sure to prevent water intrusion to the ECM (connectors and screw parts).


    1. B00739N

      Remove the 3 bolts and engine room ECU cover.

  3. DISENGAGE WIRE HARNESS


    1. B0073LQN01

      Disconnect the engine wire harness connector (A) as shown in the illustration.

    2. Disconnect the 2 engine wire harness connectors (B).

    3. B0075YU

      Using a screwdriver, disengage the claw.

    4. Disengage the clamp and disconnect the connector holder from the engine room ECU box.

    5. B0075HB

      Disconnect the 6 ECM connectors and disengage the wire harness from the engine room ECU box.

      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.

    6. B007610

      Disconnect the transmission control ECU assembly connector.

    7. B0076S8

      Disengage the wire harness clamp.

    8. Disengage the wire harness from the engine room ECU box.

  4. REMOVE ECM


    1. B0074UU

      Remove the 2 nuts and ECM from the engine room ECU box.

      Note

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

  5. REMOVE NO. 1 ECM BRACKET


    1. B007422

      Remove the 2 screws and No. 1 ECM bracket from the ECM.

  6. REMOVE NO. 2 ECM BRACKET


    1. B00764Y

      Remove the 2 screws and No. 2 ECM bracket from the ECM.