HV BATTERY STACK 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 HV battery stack 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

  • Battery ECU assembly

  • HV battery junction block assembly

 Perform Current sensor offset learning DTCs are stored

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Hybrid battery terminal block Perform high voltage fuse accumulated load history reset DTCs are stored

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  • No. 1 HV supply stack sub-assembly

  • No. 2 HV supply stack sub-assembly

  • Prediagnostic battery charge

  • Battery diagnosis

  • Battery status info update

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

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Pre-collision system
Parking assist monitor system

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Steering sensor zero point calibration Variable gear ratio steering system

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HV battery

  • Prediagnostic battery charge

  • Battery diagnosis

  • Battery status info update

 Warning Light Illumination

Click here

Electric parking brake ECU

  • Reset memory

  • Acquire tension sensor zero point

 Electric parking brake system

Click here

DRS ECU (rear steering control ECU) Perform Neutral Position Memorization and Motor Rotation Angle Sensor Calibration

  • Dynamic rear steering system

  • Steering wheel off-center

  • DTCs are output

Click here


  • Front seat assembly RH (Only for removal and installation)

  • Front seat assembly LH (Only for removal and installation)

 Initialize position control ECU Front Power Seat Control System

Click here

Spoiler control ECU assembly Initialization Active rear wing system

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CAUTION:


  • B004A7G

    Orange wire harnesses and connectors indicate high-voltage circuits. To prevent electric shock, always follow the procedure described in the repair manual.

    Click here

  • B004BJX

    To prevent electric shock, wear insulated gloves when working on wire harnesses and components of the high voltage system.

  • The hybrid system has high-voltage circuits. Accidents, such as electric shock, or electric leaks may result if the hybrid system is not operated in a correct manner. Make sure to follow the correct procedure.

  • When disposing of an HV battery assembly or hybrid vehicle supply stack sub-assembly, make sure to return them through an authorized collection agent who is capable of handling them safely.

  • Before returning an HV battery assembly, make sure to perform a recovery inspection.

  • Before returning an HV supply stack sub-assembly, make sure to perform a recovery inspection.

  • Make a note of the output DTCs as some of them may be necessary for "Recovery Inspection" of the HV battery assembly and HV supply stack sub-assemblies.

Note

When replacing the No. 1 hybrid vehicle supply stack sub-assembly or No. 2 hybrid vehicle supply stack sub-assembly, it is necessary to check, adjust and equalize the SOC of the HV battery. Otherwise, the engine may run longer than normal, resulting in a decrease in fuel efficiency.

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PROCEDURE


  1. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / HV Battery / Data List / Hybrid Battery Temperature 1 to 6.


      Powertrain > HV Battery > Data List
      Tester Display
      Hybrid Battery Temperature 1
      Hybrid Battery Temperature 2
      Hybrid Battery Temperature 3
      Hybrid Battery Temperature 4
      Hybrid Battery Temperature 5
      Hybrid Battery Temperature 6

    4. Read the Data List.

      Note

      If any of the temperatures listed in "Hybrid Battery Temperature 1 to 6" are 50°C or more, leave the vehicle until the temperature drops to less than 50°C.

  2. PRECAUTION

    Click here

  3. REMOVE HV BATTERY ASSEMBLY

    Click here

  4. REMOVE UPPER HV BATTERY COVER PANEL

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    1. B004B31

      Remove the 8 nuts and upper HV battery cover panel.

  5. REMOVE NO. 2 HYBRID BATTERY SHIELD SUB-ASSEMBLY

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    1. B004BUS

      Detach the 2 clamps.

    2. Remove the 4 bolts, 2 nuts and No. 2 hybrid battery shield sub-assembly.

  6. REMOVE NO. 1 HYBRID BATTERY SHIELD SUB-ASSEMBLY

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    1. B004B7J

      Remove the 4 bolts, 2 nuts and No. 1 hybrid battery shield sub-assembly.

  7. REMOVE HYBRID BATTERY TERMINAL BLOCK

    Click here

  8. REMOVE UPPER NO. 1 HYBRID BATTERY COVER SUB-ASSEMBLY

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    1. B004C6J

      Remove the 4 bolts, 4 nuts and upper No. 1 hybrid battery cover sub-assembly.

  9. REMOVE NO. 1 HYBRID BATTERY EXHAUST DUCT

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    1. B004CIG

      Detach the guide and remove the No. 1 hybrid battery exhaust duct.

  10. REMOVE BATTERY VOLTAGE SENSOR (for Upper Side)

    Click here

  11. REMOVE BATTERY ECU ASSEMBLY

    Click here

  12. REMOVE NO. 7 HV BATTERY SHIELD SUB-ASSEMBLY (for Upper Side)

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    1. B004AQY

      Disconnect the connector.

    2. Detach the 9 clamps.

    3. Remove the 2 nuts, No. 7 HV battery shield sub-assembly and wire harness clamp bracket.

  13. REMOVE NO. 1 HV SUPPLY STACK SUB-ASSEMBLY

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    1. B004BGX

      Disconnect the 2 connectors.

      Note

      Insulate the disconnected connectors with insulating tape.

    2. Detach the 6 clamps.

    3. Remove the nut.

    4. B004CFM

      Remove the 4 nuts and No. 1 HV supply stack sub-assembly.

  14. REMOVE NO. 8 HYBRID BATTERY INTAKE DUCT

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    1. B004CQP

      Remove the No. 8 hybrid battery intake duct.

  15. REMOVE WIRE HARNESS CLAMP BRACKET

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    1. B004C7F

      Detach the 8 clamps.

    2. Remove the 4 nuts and wire harness clamp bracket.

  16. REMOVE BATTERY COOLING BLOWER ASSEMBLY

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    1. B004BUJ

      Remove the 2 bolts and nut.

    2. Disconnect the 2 fittings on the No. 6 hybrid battery intake duct and remove the battery cooling blower assembly.

  17. REMOVE NO. 6 HYBRID BATTERY INTAKE DUCT

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    1. B004B29

      Detach the 2 clamps.

    2. Disconnect the HV battery intake air temperature sensor.

    3. Remove the No. 6 hybrid battery intake duct.

  18. REMOVE HV BATTERY JUNCTION BLOCK ASSEMBLY

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    1. B004AD4

      Disconnect the 3 connectors.

      Note

      Insulate the disconnected connectors with insulating tape.

    2. Remove the 4 nuts and HV battery junction block assembly.

      Note


      • Do not drop the HV battery junction block assembly, strike it with tools or subject it to impact.

      • If the HV battery junction block assembly is subjected to an impact, replace it with a new one.

  19. REMOVE UPPER HV BATTERY CARRIER SUB-ASSEMBLY

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    1. B004AIG

      Remove the 7 bolts, 6 nuts and upper HV battery carrier sub-assembly.

  20. REMOVE BATTERY VOLTAGE SENSOR (for Lower Side)

    Click here

  21. REMOVE NO. 7 HV BATTERY SHIELD SUB-ASSEMBLY (for Lower Side)

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    1. B004BTP

      Disconnect the connector.

    2. Detach the 7 clamps.

    3. Remove the 2 nuts, No. 7 HV battery shield sub-assembly and wire harness clamp bracket.

  22. REMOVE NO. 2 HV BATTERY PACK WIRE

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    1. B004CJ3

      Detach the clamp and remove the No. 2 HV battery pack wire.

  23. REMOVE NO. 2 HV SUPPLY STACK SUB-ASSEMBLY

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    1. B004CRW

      Detach the clamp.

    2. Remove the 4 nuts and No. 2 HV supply stack sub-assembly.

  24. REMOVE NO. 9 HYBRID BATTERY INTAKE DUCT

    CAUTION:

    Be sure to wear insulated gloves and protective goggles.


    1. B004AV1

      Remove the No. 9 hybrid battery intake duct.

  25. PERFORM RECOVERY INSPECTION


    1. Before returning the HV supply stack sub-assembly, make sure to perform a recovery inspection.

      Click here