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Removal [04/2020 - 09/2022]: Procedure

  1. DISCONNECT ENGINE WIRE 
    1. Disengage the 2 claws and disconnect the engine wire from the battery current sensor holder.
      GTY884386Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the battery state sensor assembly connector.
  2. REMOVE AUXILIARY BATTERY 

    Refer to REMOVAL [01/2019 - 09/2022]

  3. REMOVE SERVICE PLUG GRIP 

    Refer to REMOVAL [04/2020 - 09/2022]

  4. DRAIN COOLANT (for Inverter) 

    Refer to PROCEDURE - Step 1

  5. REMOVE ECM 

    Refer to REMOVAL [04/2020 - 09/2022]

  6. REMOVE BATTERY CLAMP SUB-ASSEMBLY 
    1. Remove the 3 bolts and battery clamp sub-assembly from the vehicle.
      GTY941918Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. SEPARATE FLOOR SHIFT TRANSMISSION CONTROL SELECT CABLE 
    1. Disengage the clamp to separate the floor shift transmission control select cable.
      GTY909593Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. DISCONNECT ENGINE 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. Remove the No. 1 relay block cover from the No. 1 engine room relay block.
      GTY909594Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the 3 No. 1 engine room relay block connectors.
      GTY941924Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Disengage the 2 claws to separate the engine wire from the No. 1 engine room relay block.
    4. Move each lock lever as shown in the illustration and disconnect the 2 inverter with converter assembly connectors.
      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.
      GTY909592Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Remove the bolt.
      GTY905685Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Disengage the clamp (A) and remove the inverter protector.
    7. Disengage the clamp (B).
    8. Remove the 2 bolts.
      GTY909591Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    9. Disengage the clamp and disconnect the engine wire.
  9. REMOVE CONNECTOR COVER ASSEMBLY 
    WARNING:

    Be sure to wear insulated gloves.

    1. Remove the bolt (B).
      GTY913542Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Bolt (A)
      *b Bolt (B)
    2. Using a T25 "TORX" socket wrench, remove the bolt (A) and connector cover assembly from the inverter with converter assembly.
      NOTE:
      • Do not touch the connector cover assembly waterproof seal.
      • Do not allow any foreign matter or water to enter the inverter with converter assembly.
  10. CHECK TERMINAL VOLTAGE 
    WARNING:

    Be sure to wear insulated gloves.

    1. Using a voltmeter, measure the voltage between the terminals of the 2 phase connectors.

      Standard Voltage

      0 V

      NOTE:

      Do not allow any foreign matter or water to enter the inverter with converter assembly.

      HINT: 

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

      GTY541774Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. TEMPORARILY INSTALL CONNECTOR COVER ASSEMBLY 
    WARNING:

    Be sure to wear insulated gloves.

    1. Temporarily install the connector cover assembly to the inverter with converter assembly.
      GTY598219Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using a T25 "TORX" socket wrench, install the bolt.

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

      NOTE:
      • Do not touch the connector cover assembly waterproof seal.
      • Do not allow any foreign matter or water to enter the inverter with converter assembly.
  12. DISCONNECT FLOOR UNDER WIRE 
    WARNING:

    Be sure to wear insulated gloves.

    1. Remove the bolt and disconnect the HV floor under wire from the inverter with converter assembly.
      GTY929719Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Waterproof Seal
      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.
      • Do not allow any foreign matter or water to enter the inverter with converter assembly.
      • Insulate the disconnected terminals with insulating tape.
    2. Disengage the 2 clamps.
  13. DISCONNECT HV AIR CONDITIONING WIRE 
    WARNING:

    Be sure to wear insulated gloves.

    1. Remove the 2 bolts and disconnect the HV air conditioning wire from the inverter with converter assembly.
      GTY859960Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Waterproof Seal
      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.
      • Do not allow any foreign matter or water to enter the inverter with converter assembly.
      • Insulate the disconnected terminals with insulating tape.
    2. Disengage the clamp.
  14. REMOVE WIRE HARNESS CLAMP BRACKET 
    1. Remove the nut and wire harness clamp bracket.
      GTY909588Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. DISCONNECT NO. 3 ENGINE WIRE 
    WARNING:

    Be sure to wear insulated gloves.

    1. Remove the bolt and disconnect the No. 3 engine wire from the inverter with converter assembly.
      GTY909620Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the bolt and disconnect the No. 3 engine wire from the inverter with converter assembly.
      GTY909621Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Disengage the 2 claws and open the No. 3 engine wire terminal cover.
      GTY909618Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Remove the nut.
      GTY909619Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Disengage the clamp and disconnect the No. 3 engine wire from the inverter with converter assembly.
  16. DISCONNECT OUTLET NO. 1 INVERTER COOLING HOSE 
    1. Slide the clip and disconnect the outlet No. 1 inverter cooling hose from the inverter with converter assembly.
      NOTE:

      Put pieces of cloth into the pipe and disconnected hose or cover the pipe and hose with plastic bags to prevent entry of foreign matter.

      GTY909616Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  17. DISCONNECT INLET NO. 1 INVERTER COOLING HOSE 
    1. Slide the clip and disconnect the inlet No. 1 inverter cooling hose from the inverter with converter assembly.
      NOTE:

      Put pieces of cloth into the pipe and disconnected hose or cover the pipe and hose with plastic bags to prevent entry of foreign matter.

      GTY941930Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  18. REMOVE INVERTER COVER 
    WARNING:

    Be sure to wear insulated gloves.

    1. Remove the 2 bolts and inverter cover from the inverter with converter assembly.
      NOTE:
      • Make sure to pull the inverter cover straight out, as a connector is connected to the inside of the inverter cover.
      • Do not touch the waterproof seal of the inverter cover.
      • Do not allow any foreign matter or water to enter the inverter with converter assembly.
      • When removing the inverter cover, do not pull the areas (A) as they may deform.
      • Make sure that the interlock is installed to the inverter cover.
      • Do not remove or excessively tighten the screw of the inverter cover.
        GTY596587Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *1 Inverter Cover
        *a Screw
      • Although the inverter cover may feel loose, this is not due to a malfunction.

      HINT: 

      If necessary, use a screwdriver with its tip wrapped with protective tape as shown in the illustration to remove the inverter cover.

      GTY870329Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Protective Tape
      GTY543461Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Interlock
      *b Waterproof Seal
  19. DISCONNECT MOTOR CABLE 
    WARNING:

    Be sure to wear insulated gloves.

    1. Using an insulated tool, remove the 6 bolts.
      GTY542955Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • Do not allow any foreign matter or water to enter the inverter with converter assembly.
      • Do not touch the waterproof seal or terminals of the connector.
    2. Remove the 4 bolts and disconnect the motor cable from the inverter with converter assembly.
      GTY545409Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Waterproof Seal
      NOTE:
      • Do not allow any foreign matter or water to enter the inverter with converter assembly.
      • 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.
      • Insulate the disconnected terminals with insulating tape.
      • After disconnecting the motor cable, wrap it with a plastic bag or equivalent to protect it.
      • Cover the hole where the cable was connected with tape (non-residue type) or equivalent to prevent entry of foreign matter.
      • To prevent the wire harness from being caught, make sure to bundle the wire harness using insulating tape or equivalent.
        GTY909614Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  20. REMOVE INVERTER WITH CONVERTER ASSEMBLY 
    WARNING:

    Be sure to wear insulated gloves.

    1. Remove the 5 bolts, 2 nuts and inverter with converter assembly.
      GTY909612Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • When removing the inverter with converter assembly, be careful not to damage the parts around it.
      • To prevent damage, do not hold the inverter with converter assembly by the connectors, brackets or cooling pipes.
      • To prevent damage due to static electricity, do not touch the terminals of the disconnected connectors.

      HINT: 

      Even after the coolant is drained, coolant remains in the inverter due to its internal structure. Therefore, seal or cover the pipes when removing the inverter with converter assembly so that coolant does not spill out.

  21. REMOVE NO. 1 INVERTER BRACKET 
    NOTE:

    Make sure to support the inverter with converter assembly at the positions shown in the illustration, otherwise it may be damaged.

    GTY890766Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *a Bottom of Inverter with Converter Assembly
    *b Support
    1. Set the inverter with converter assembly on wooden blocks.
      GTY925089Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Wooden Block
    2. Remove the 2 bolts and No. 1 inverter bracket from the inverter with converter assembly.
  22. REMOVE NO. 2 INVERTER BRACKET 
    1. Remove the 2 bolts and No. 2 inverter bracket from the inverter with converter assembly.
      GTY843178Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Wooden Block
  23. REMOVE TRANSMISSION CONTROL CABLE SUPPORT 
    1. Remove the bolt and transmission control cable support from the inverter with converter assembly.
      GTY909611Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  24. REMOVE WIRE HARNESS CLAMP BRACKET 
    1. Remove the bolt and wire harness clamp bracket from the inverter with converter assembly.
      GTY941935Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the bolt and wire harness clamp bracket from the inverter with converter assembly.
      GTY543046Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the bolt and wire harness clamp bracket from the inverter with converter assembly.
      GTY542959Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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