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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Hybrid Battery Control System - Service Information (2 Of 3)) >> FRAME WIRE (for PHEV Model) >> Removal [12/2023 - ] >> Procedure

Removal [12/2023 - ]: Procedure

WARNING: This page is about a different car, the 2024 Lexus TX 550h+ and 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.
  1. PRECAUTION 
    NOTE:

    After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.

    Refer to BEFORE DISCONNECTING BATTERY [09/2023 - ]

    Refer to PRECAUTION [09/2023 - ]

  2. REMOVE FUEL TANK SUB-ASSEMBLY 

    Refer to REMOVAL [12/2023 - ]

  3. REMOVE FRONT NO. 2 EXHAUST PIPE SUB-ASSEMBLY 

    Refer to REMOVAL [12/2023 - ]

  4. REMOVE EXHAUST MANIFOLD ASSEMBLY RH 

    Refer to REMOVAL [12/2023 - ]

  5. REMOVE SERVICE PLUG GRIP 

    Refer to REMOVAL [12/2023 - ]

  6. REMOVE NO. 2 INVERTER PROTECTOR 

    Refer to PROCEDURE - Step 6

  7. CHECK TERMINAL VOLTAGE 
    Refer to PROCEDURE - Step 7
  8. DISCONNECT ENGINE ROOM MAIN WIRE 
    WARNING:

    Be sure to wear insulated gloves.

    NOTE:

    Do not allow any foreign matter or water to enter the inverter with converter assembly.
    1. GTY1240398Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Move the lock lever as shown in the illustration and disconnect the inverter with converter assembly connector.
        NOTE:
        • Do not touch the waterproof seal or terminals of the connector.
        • Do not damage the terminals, connector housing or inverter with converter assembly during disconnection.
        • Cover the hole where the cable was connected with tape (non-residue type) or equivalent to prevent entry of foreign matter.
        • Insulate the disconnected terminals with insulating tape.
  9. DISCONNECT FLOOR UNDER WIRE 
    Refer to PROCEDURE - Step 10
    WARNING:

    Be sure to wear insulated gloves.
    1. GTY1237168Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Green-colored Lock - -
      Slide - -
      1. Using a screwdriver, slide the green-colored lock of the connector as shown in the illustration to release it and disconnect the floor under wire.
    2. GTY1229231Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. GTY1238435Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Waterproof Seal - -
      1. Disconnect the floor under wire from the hybrid motor control inverter assembly.
        NOTE:
        • Do not touch the waterproof seal or terminals of the connector.
        • Do not damage the terminals, connector housing or hybrid motor control inverter assembly during disconnection.
        • Cover the hole where the cable was connected with tape (non-residue type) or equivalent to prevent entry of foreign matter.
        • Do not allow any foreign matter or water to enter the hybrid motor control inverter assembly.
        • Insulate the disconnected terminals with insulating tape.
  10. REMOVE REAR NO. 1 SEAT ASSEMBLY 
  11. REMOVE REAR NO. 2 SEAT ASSEMBLY 

    Refer to REMOVAL [12/2023 - ]

  12. REMOVE REAR CONSOLE BOX ASSEMBLY 

    Refer to REMOVAL [09/2023 - ]

  13. REMOVE HV SUPPLY BATTERY ASSEMBLY 

    Refer to REMOVAL [12/2023 - ] 

  14. REMOVE CHARCOAL CANISTER ASSEMBLY 

    Refer to REMOVAL [12/2023 - ]

  15. REMOVE CHARCOAL CANISTER BASE BRACKET 
    1. GTY1238445Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  16. REMOVE JUNCTION BLOCK COVER 
    WARNING:

    Be sure to wear insulated gloves.
    1. GTY1239253Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. GTY1238775Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. GTY1241379Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. GTY1241377Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. GTY1228634Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. GTY1239247Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  17. DISCONNECT NO. 3 HIGH VOLTAGE FLOOR UNDER WIRE 
    WARNING:

    Be sure to wear insulated gloves.
    1. GTY1239462Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Disconnect the 2 connectors.
        NOTE:

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

      2. Remove the nut and disconnect the No. 3 high voltage floor under wire.
    2. GTY1237904Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the 2 nuts.
      2. Remove the stud clamp.
        NOTE:

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

      3. Disengage the grommet and pull out the No. 3 high voltage floor under wire from the floor panel hole.
  18. DISCONNECT FLOOR UNDER WIRE 
    WARNING:

    Be sure to wear insulated gloves.

    NOTE:

    Insulate the disconnected high-voltage connector with insulating tape.
    1. GTY1237913Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Disconnect the 6 connectors.
        NOTE:

        Insulate the disconnected high-voltage connector with insulating tape.

      2. Remove the 3 nuts.
      3. Disengage the clamp and disconnect the floor under wire.
      4. Disengage the 2 clamps.
  19. REMOVE REAR SUSPENSION MEMBER SUB-ASSEMBLY 

    Refer to REMOVAL [12/2023 - ]

  20. REMOVE FRONT NO. 1 FLOOR HEAT INSULATOR SUB-ASSEMBLY 
    1. GTY1228617Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  21. REMOVE FLOOR UNDER WIRE 
    WARNING:

    Be sure to wear insulated gloves.
    1. GTY1228618Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. GTY1239249Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. GTY1239598Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Green-colored Lock - -
      Slide - -
      1. Using a screwdriver, slide the green-colored lock of the connector as shown in the illustration to release it and disconnect the connector.
      2. Disengage the 3 clamps.
    4. GTY1241326Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Green-colored Lock - -
      Remove in this Direction Slide
      1. Disengage the guide, 2 claws and remove the No. 1 terminal cap.
      2. Using a screwdriver, slide the green-colored lock of the connector as shown in the illustration to release it and disconnect the connector.
      3. Remove the 2 nuts.
      4. Disengage the 2 claws and clamp.
    5. GTY1230575Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the 3 bolts and 13 nuts.
      2. Remove the 6 stud clamps.
        NOTE:

        If the stud clamps 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.
  22. REMOVE WIRE HARNESS PROTECTOR COVER 

    HINT: 

    Perform this procedure only when replacement of the wire harness protector cover is necessary.

    1. GTY1233012Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the stud clamp and wire harness protector cover.
        NOTE:

        If the stud clamps are removed forcibly, the stud bolts may be damaged.

  23. REMOVE WIRE HARNESS CLAMP BRACKET 

    HINT: 

    Perform this procedure only when replacement of the wire harness clamp bracket is necessary.

    1. GTY1228622Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  24. 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. GTY1234380Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Waterproof Seal - -
  25. 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.

  26. REMOVE NO. 3 HIGH VOLTAGE FLOOR UNDER 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.
    1. GTY1237316Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Waterproof Seal - -
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