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
Hybrid vehicle control ECU

    When vehicle ECU compensation code cannot be read

  • A/T code registration(Register compensation code)

  • Drive learning


  • Large shift shock

  • Deterioration of fuel efficiency

L310: Click here

L310F: Click here


    When vehicle ECU compensation code can be read

  • A/T code registration(Read compensation code)

  • A/T code registration(Register compensation code (automatic input))

  • Drive learning

Perform code registration Hybrid control system cannot be started See Service Bulletin for the registration method.
Auxiliary battery terminal is disconnected/reconnected Memorize steering angle neutral point LKA/LDA system (for Mono camera type)

for Stereo Camera type: Click here

for Mono Camera type: Click here

Lane control system (for Stereo camera type)
Parking support brake system*
Pre-collision system (for Stereo camera type)
Pre-collision system (for Mono camera type)
Adaptive high beam system

    Lighting system (EXT)

  • Cornering lights

Variable gear ratio steering system

Click here

Parking assist monitor system

Click here

Panoramic view monitor system

Click here

Initialize rear door sunshade system Rear door sunshade system

Click here

Initialize power trunk lid system Power trunk lid system

Click here

*: When performing learning using the GTS.
Click here Click here

Tech Tips


  • Use the same procedure for RHD and LHD vehicles.

  • The procedure listed below is for LHD vehicles.

PROCEDURE


  1. PRECAUTION

    CAUTION:

    Be sure to read precaution thoroughly before servicing.

    Click here

    B004S9K

    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

  2. REMOVE LUGGAGE COMPARTMENT MAT SUB-ASSEMBLY

    Click here

  3. DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL

    Click here

    CAUTION:


    • Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

    • If the airbag deploys for any reason, it may cause a serious accident.

    B004UM0

    Note

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

    Click here

  4. REMOVE LOWER NO. 2 INSTRUMENT PANEL AIRBAG ASSEMBLY

    Click here

  5. REMOVE INSTRUMENT SIDE PANEL LH

    Click here

  6. REMOVE LOWER NO. 1 INSTRUMENT PANEL PAD SUB-ASSEMBLY

    Click here

  7. REMOVE LOWER INSTRUMENT PANEL FINISH PANEL ASSEMBLY

    Click here

  8. REMOVE GLOVE COMPARTMENT DOOR PAD PLATE

    Click here

  9. REMOVE GLOVE COMPARTMENT DOOR ASSEMBLY

    Click here

  10. REMOVE HYBRID VEHICLE CONTROL ECU ASSEMBLY


    1. B004X6B

      Disconnect the 4 connectors.

    2. Remove the bolt, nut and hybrid vehicle control ECU assembly.

      Note


      • Do not drop the hybrid vehicle control ECU assembly, strike it with tools or subject it to impact.

      • If the hybrid vehicle control ECU assembly is subjected to an impact, replace it with a new one.