HYBRID VEHICLE CONTROL ECU REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during hybrid vehicle control ECU removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure Necessary Procedures Effect/Inoperative Function when Necessary Procedure not Performed Link
Auxiliary battery terminal is disconnected/reconnected Memorize steering angle neutral point Lane departure alert system (w/ Steering Control)

Click here

Intelligent clearance sonar system*1
Simple intelligent parking assist system*1
Pre-crash safety system
Parking assist monitor system

Click here

Initialize back door lock Power door lock control system

Click here

Replacement of hybrid vehicle control ECU Perform code registration (Immobiliser system)

  • Entry and start system

  • Wireless door lock control system

  • Hybrid control system cannot be started

 See Service Bulletin for the registration method.
Clear DTCs (Vehicle proximity notification system)*2 Vehicle proximity notification system

Click here

*1: When performing learning using the GTS.

Click here

*2: w/ Vehicle Proximity Notification System

PROCEDURE


  1. PRECAUTION

    Note


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

      Click here

    • Before replacing the hybrid vehicle control ECU, refer to Service Bulletin.

  2. DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL

    Note

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

    Click here

  3. REMOVE NO. 2 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY

    Click here

  4. REMOVE GLOVE COMPARTMENT DOOR ASSEMBLY

    Click here

  5. REMOVE ECU INTEGRATION BOX RH (for LHD)


    1. Disconnect each connector.

    2. B004Q3WC03
      *a Lock Lever

      Move each lock lever as shown in the illustration and disconnect the 3 hybrid vehicle control ECU connectors.

    3. B004P2O

      Disengage the 3 clamps.

    4. B004QR9

      Remove the bolt, 2 nuts and ECU integration box RH.

  6. REMOVE HYBRID VEHICLE CONTROL ECU (for LHD)


    1. B004PGS

      Disengage the 2 claws and remove the hybrid vehicle control ECU as shown in the illustration.

      Note


      • If the ECU integration box is deformed or damaged, replace it.

      • Do not bend the 2 claws more than necessary.

  7. REMOVE ECU INTEGRATION BOX LH (for RHD)


    1. Disconnect each connector.

    2. B004PCYC02
      *a Lock Lever

      Move each lock lever as shown in the illustration and disconnect the 3 hybrid vehicle control ECU connectors.

    3. B004OKE

      Remove the bolt, nut and ECU integration box LH.

  8. REMOVE HYBRID VEHICLE CONTROL ECU (for RHD)


    1. B004PG2

      Disengage the 2 claws and remove the hybrid vehicle control ECU as shown in the illustration.

      Note


      • If the ECU integration box is deformed or damaged, replace it.

      • Do not bend the 2 claws more than necessary.