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

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.
Disconnect cable from auxiliary negative battery terminal Memorize steering angle neutral point LKA/LDA system

Click here

Pre-collision system
Parking assist monitor system

Click here

Steering sensor zero point calibration Variable gear ratio steering system

Click here

Tech Tips


  • Use the same procedure for RHD and LHD vehicles.

  • The procedure listed below is for LHD vehicles.

PROCEDURE


  1. PRECAUTION

    Note

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

  2. REMOVE LOWER NO. 2 INSTRUMENT PANEL AIRBAG ASSEMBLY

    Click here

  3. REMOVE NO. 2 INSTRUMENT PANEL GARNISH SUB-ASSEMBLY

    Click here

  4. REMOVE GLOVE COMPARTMENT DOOR ASSEMBLY

    Click here

  5. REMOVE HYBRID VEHICLE CONTROL ECU ASSEMBLY


    1. B004ABT

      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.