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Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Battery Control System - Service Information (3 Of 4) >> FRAME WIRE (for T24A-FTS) >> Removal [10/2022 - ] >> Procedure

Removal [10/2022 - ]: Procedure

  1. PRECAUTION 
    Refer to PRECAUTION [10/2022 - ]
  2. REMOVE FUEL TANK ASSEMBLY 

    Refer to REMOVAL [10/2022 - ]

  3. REMOVE SERVICE PLUG GRIP 

    Refer to REMOVAL [10/2022 - ]

  4. REMOVE FRONT WHEEL OPENING EXTENSION PAD LH 

    Refer to PROCEDURE - Step 7

  5. REMOVE FRONT WHEEL OPENING EXTENSION PAD RH 

    Refer to PROCEDURE - Step 8

  6. REMOVE NO. 1 ENGINE UNDER COVER 

    Refer to PROCEDURE - Step 9

  7. REMOVE NO. 2 ENGINE UNDER COVER ASSEMBLY 

    Refer to PROCEDURE - Step 10

  8. DRAIN COOLANT (for Intercooler) 

    Refer to PROCEDURE - Step 4

  9. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 22
  10. REMOVE AIR CLEANER ASSEMBLY WITH NO. 1 AIR CLEANER HOSE 

    Refer to PROCEDURE - Step 10

  11. REMOVE AIR CLEANER HOSE ASSEMBLY 

    Refer to PROCEDURE - Step 11

  12. REMOVE ECM 
    Refer to PROCEDURE - Step 4
  13. DISCONNECT WATER HOSE WITH FUEL VAPOR FEED HOSE ASSEMBLY 

    Refer to PROCEDURE - Step 13

  14. REMOVE INTAKE AIR CONNECTOR BRACKET 

    Refer to PROCEDURE - Step 15

  15. REMOVE BATTERY COVER LOCK STRIKER 
    Refer to PROCEDURE - Step 16
  16. REMOVE INVERTER TERMINAL COVER 
    Refer to PROCEDURE - Step 17
  17. CHECK TERMINAL VOLTAGE 
    Refer to PROCEDURE - Step 18
  18. REMOVE INVERTER COVER GASKET 
    Refer to PROCEDURE - Step 31
  19. INSTALL INVERTER TERMINAL COVER 
    WARNING:

    Be sure to wear insulated gloves.
    1. GTY1131320Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Guide Pin - -
      1. Attach the 2 guide pins and install the inverter terminal cover with 2 bolts.

        Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

        NOTE:
        • Do not touch the inverter cover gasket if not replacing it.
        • Do not allow any foreign matter or water to enter the EV converter assembly.
  20. INSTALL BATTERY COVER LOCK STRIKER 
    Refer to PROCEDURE - Step 10
  21. DISCONNECT ENGINE WIRE 
    Refer to PROCEDURE - Step 20
  22. REMOVE BATTERY COVER LOCK STRIKER 
    Refer to PROCEDURE - Step 24
  23. REMOVE UPPER INVERTER COVER SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 25
  24. DISCONNECT FLOOR UNDER WIRE 
    Refer to PROCEDURE - Step 26
  25. REMOVE INVERTER TERMINAL GASKET 
    Refer to PROCEDURE - Step 32
  26. INSTALL UPPER INVERTER COVER SUB-ASSEMBLY 
    WARNING:

    Be sure to wear insulated gloves.
    1. GTY1133242Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Guide Pin - -
      1. Attach the 2 guide pins and install the upper inverter cover sub-assembly with 3 bolts.

        Torque: 4.5 N.m (46 kgf/cm, 40 in.lbf) 

        NOTE:
        • Do not touch the inverter terminal gasket if not replacing it.
        • Do not allow any foreign matter or water to enter the EV converter assembly.
  27. REMOVE REAR SEAT CUSHION ASSEMBLY 

    Refer to REMOVAL [10/2022 - 08/2023] , or refer to REMOVAL [08/2023 - ]

  28. REMOVE REAR SEAT CUSHION LOCK HOOK 

    Refer to PROCEDURE - Step 18 [10/2022 - 08/2023] , or refer to PROCEDURE - Step 18 [08/2023 - ]

  29. REMOVE REAR DOOR SCUFF PLATE LH 

    Refer to PROCEDURE - Step 20 [10/2022 - 08/2023] , or refer to PROCEDURE - Step 21 [08/2023 - ]

  30. REMOVE REAR DOOR SCUFF PLATE RH 
    1. Use the same procedure described for the LH side.
  31. REMOVE NO. 3 BATTERY SERVICE COVER BOARD 

    Refer to PROCEDURE - Step 21 [10/2022 - 08/2023] , or refer to PROCEDURE - Step 22 [08/2023 - ]

  32. REMOVE NO. 2 BATTERY SERVICE COVER BOARD 
    1. Use the same procedure as for the No. 3 battery service cover board.
  33. REMOVE BATTERY SERVICE COVER BOARD 
    1. GTY1129918Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction(1) Remove in this Direction(2)
  34. REMOVE FOLD SEAT CONTROL ECU (for Power Seat) 

    Refer to PROCEDURE - Step 13 [10/2022 - 08/2023] , or refer to PROCEDURE - Step 13 [08/2023 - ]

  35. REMOVE REAR SEAT CUSHION LEG SUB-ASSEMBLY 
    1. GTY1130404Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  36. REMOVE NO. 2 FLOOR MAT 
    1. GTY1131945Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  37. REMOVE UPPER HV BATTERY COVER SUB-ASSEMBLY 
    1. GTY1131946Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  38. REMOVE NO. 6 HV BATTERY SHIELD SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 24
  39. DISCONNECT NO. 2 HV FLOOR UNDER WIRE 
    WARNING:

    Be sure to wear insulated gloves and protective goggles.
    1. GTY1130089Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Nut Connector
      1. Disconnect the connector.
        NOTE:

        To prevent the wire harness from being caught, make sure to bundle the wire harness using insulating tape or equivalent.

      2. Disengage the claw and open the No. 2 traction battery device box cover as shown in the illustration.
      3. Using an insulated tool, remove 3 nuts and disconnect the floor under wire and No. 2 floor under wire.
        NOTE:

        To prevent the wire harness from being caught, make sure to bundle the wire harness using insulating tape or equivalent.

  40. DISCONNECT HV BATTERY CHARGER WIRE 
    WARNING:

    Be sure to wear insulated gloves and protective goggles.
    1. GTY1132523Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using an insulated tool, remove 3 nuts and disconnect the HV battery charger wire.
        NOTE:

        To prevent the wire harness from being caught, make sure to bundle the wire harness using insulating tape or equivalent.

    2. GTY1132126Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the 3 nuts.
      2. Disengage the clamp.
      3. Disengage the grommet and pull out the HV battery charger wire from the floor panel hole.
  41. REMOVE REAR SUSPENSION MEMBER WITH TRANSAXLE ASSEMBLY 

    Refer to REMOVAL [10/2022 - ]

  42. REMOVE UPPER INVERTER COVER SUB-ASSEMBLY 
    WARNING:

    Be sure to wear insulated gloves.

    NOTE:

    Do not allow any foreign matter or water to enter the rear transaxle with motor and inverter assembly.
    1. GTY1133583Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Waterproof Seal - -
  43. CHECK TERMINAL VOLTAGE 
    WARNING:

    Be sure to wear insulated gloves.

    NOTE:

    Do not allow any foreign matter or water to enter the rear transaxle with motor and inverter assembly.
    1. GTY1133189Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using a voltmeter, measure the voltage between the terminals of the 2 phase connectors.

        Standard Voltage

        0 V

        HINT: 

        Use a measuring range of DC 750 V or more on the voltmeter.

  44. REMOVE HV BATTERY CHARGER WIRE 
    WARNING:

    Be sure to wear insulated gloves.

    NOTE:
    • Do not allow any foreign matter or water to enter the rear transaxle with motor and inverter assembly.
    • Do not touch the waterproof seal or terminals of the connector.
    • Do not damage the terminals, connector housing or rear transaxle with motor and inverter assembly when connecting the connector.
    1. GTY1131636Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Waterproof Seal - -
  45. REMOVE FRONT EXHAUST PIPE ASSEMBLY 

    Refer to PROCEDURE - Step 2

  46. REMOVE NO. 2 EXHAUST PIPE SUPPORT BRACKET 
    1. GTY1131992Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  47. REMOVE FRONT FLOOR COVER RH 
    1. GTY1130038Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the 4 bolts (A), 3 screws (B) and clip (C).
      2. Turn the 3 clips (D) and remove the front floor cover RH from the vehicle body.
        NOTE:

        If the 3 clips are not turned when the front floor cover RH is removed, the front floor cover RH or stud bolt may be damaged.

        HINT: 

        Do not remove the clips from the front floor cover RH.

  48. REMOVE ENGINE SERVICE COVER ASSEMBLY 
    1. GTY1131991Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  49. REMOVE REAR MAIN MUFFLER HEAT INSULATOR SUB-ASSEMBLY 
    1. GTY1131990Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  50. REMOVE NO. 2 INVERTER COOLING PIPE 
    1. GTY1131723Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt Nut
      Hose clip - -
  51. REMOVE FLOOR UNDER WIRE 
    WARNING:

    Be sure to wear insulated gloves.
    1. GTY1132700Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt Nut
  52. REMOVE NO. 2 HV FLOOR UNDER WIRE 
    WARNING:

    Be sure to wear insulated gloves.
    1. GTY1130595Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. GTY1131987Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. GTY1132014Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt Nut
      1. Remove the bolt and 13 nuts.
      2. Remove the 6 clamps.
        NOTE:

        If the clamp is removed forcibly, the stud bolt may be damaged.

      3. Disengage the grommet and pull out the floor under wire from the floor panel hole.
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