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Removal [12/2023 - ]: Procedure

WARNING: This page is about a different car, the 2024 Lexus TX 550h+. 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 - ]
  2. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM 

    Refer to PROCEDURE - Step 1

  3. DISCHARGE FUEL SYSTEM PRESSURE 

    Refer to PRECAUTION [12/2023 - ]

  4. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD 

    Refer to PROCEDURE - Step 3

  5. SECURE STEERING WHEEL 
    Refer to PROCEDURE - Step 3
  6. REMOVE FRONT WHEELS 

    Refer to REMOVAL [09/2023 - ]

  7. REMOVE FRONT WHEEL OPENING EXTENSION PAD LH 
    1. GTY1232281Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE FRONT WHEEL OPENING EXTENSION PAD RH 
    1. GTY1240008Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE NO. 1 ENGINE UNDER COVER 
    1. GTY1231953Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt Screw
  10. REMOVE REAR ENGINE UNDER COVER LH 
    1. GTY1237933Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. REMOVE REAR ENGINE UNDER COVER RH 
    1. GTY1241200Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. REMOVE FRONT FENDER APRON SEAL LH 
    1. GTY1237932Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. REMOVE FRONT FENDER APRON SEAL RH 
    1. GTY1237931Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. REMOVE FRONT FLOOR COVER LH 
    1. GTY1233391Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt Screw
      Clip - -
      1. Remove the 2 bolts, 3 screws and 8 clips.
      2. Turn the 2 clips and remove the front floor cover LH from the vehicle body.
        NOTE:

        If the 2 clips are not turned when the front floor cover LH is removed, the front floor cover LH or stud bolt may be damaged.

        HINT: 

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

  15. REMOVE FRONT FLOOR COVER RH 
    1. GTY1237175Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt Screw
      Clip - -
      1. Remove the 3 bolts, 3 screws and clip.
      2. Turn the 3 clips 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.

  16. REMOVE FRONT BUMPER ASSEMBLY 

    Refer to REMOVAL [09/2023 - ]

  17. REMOVE FRONT BUMPER LOWER ABSORBER 

    Refer to PROCEDURE - Step 59

  18. REMOVE FRONT RADIATOR SIDE AIR GUIDE PLATE LH 
    1. GTY1237791Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  19. REMOVE FRONT RADIATOR SIDE AIR GUIDE PLATE RH 
    1. GTY1241170Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  20. REMOVE NO. 2 FRONT BUMPER REINFORCEMENT SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 61

  21. DRAIN ENGINE COOLANT (for Engine) 

    Refer to PROCEDURE - Step 6

  22. DRAIN COOLANT (for Inverter) 

    Refer to PROCEDURE - Step 1

  23. DRAIN ENGINE OIL 

    Refer to PROCEDURE - Step 2

  24. DRAIN HYBRID TRANSAXLE FLUID 

    Refer to PROCEDURE - Step 2

  25. REMOVE ELECTRIC HEATER SUB-ASSEMBLY 

    Refer to REMOVAL [12/2023 - ]

  26. REMOVE V-BANK COVER SUB-ASSEMBLY 
    1. GTY1238665Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Hold the rear of the V-bank cover sub-assembly and raise it to disengage the 2 rear clips.
      2. Raise the V-bank cover sub-assembly to disengage the 2 front clips and remove the V-bank cover sub-assembly.
        NOTE:

        Attempting to disengage both front and rear clips at the same time may cause the V-bank cover sub-assembly to break.

  27. REMOVE HYBRID MOTOR CONTROL INVERTER ASSEMBLY 

    Refer to REMOVAL [12/2023 - ]

  28. DISCONNECT FLOOR UNDER WIRE 
    WARNING:

    Be sure to wear insulated gloves.
    1. GTY1237169Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Green-colored Lock - -
      Slide - -
      1. Slide the green-colored lock of the connector as shown in the illustration to release it and disconnect the floor under wire.
  29. DISCONNECT ENGINE WIRE 
    HINT: 
    After disconnecting the wire harness, secure it with tape or equivalent to keep it out of the way.
    1. GTY1237919Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  30. DISCONNECT HEATER WATER HOSE D 
    1. GTY1236873Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  31. DISCONNECT HEATER WATER HOSE B 
    1. GTY1236872Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  32. DISCONNECT HEATER WATER HOSE A 
    1. GTY1236871Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  33. REMOVE WIRE HARNESS CLAMP BRACKET 
    1. GTY1237918Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  34. REMOVE INVERTER WATER PUMP ASSEMBLY 
    Refer to PROCEDURE - Step 2
  35. REMOVE INVERTER RESERVE TANK SUB-ASSEMBLY 
    1. GTY1237917Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  36. DISCONNECT NO. 4 WATER BY-PASS HOSE 
    1. GTY1240971Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  37. DISCONNECT NO. 1 RADIATOR HOSE 
    1. GTY1237916Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  38. DISCONNECT NO. 2 RADIATOR HOSE 
    1. GTY1236859Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  39. DISCONNECT NO. 1 COOLER REFRIGERANT DISCHARGE HOSE 
    Refer to PROCEDURE - Step 8
  40. DISCONNECT SUCTION HOSE SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 7
  41. DISCONNECT NO. 1 FUEL HOSE 
    1. GTY1228370Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the No. 2 fuel pipe clamp from the No. 1 fuel hose.

        Refer to PRECAUTION [12/2023 - ]

      2. Disconnect the No. 1 fuel hose from the fuel pipe.

        Refer to PRECAUTION [12/2023 - ]

  42. REMOVE FRONT EXHAUST PIPE ASSEMBLY 
    WARNING:

    To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.
    1. GTY1237921Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  43. REMOVE FRONT NO. 2 EXHAUST PIPE SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 7
  44. REMOVE FRONT EXHAUST PIPE SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 9
  45. REMOVE ENGINE UNDER COVER HEAT INSULATOR 
    1. GTY1238995Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Service Plug Grip *2 No. 23 Traction Battery Bracket
      *a Projection *b Turn
      *c Button - -
      Install in this Direction - -
      1. Insert the projection of the service plug grip and turn the button of the No. 23 traction battery bracket counterclockwise to release the lock to remove the No. 23 traction battery bracket.
      2. Remove the 4 nuts and engine under cover heat insulator.
  46. REMOVE TRANSMISSION OIL COOLER AIR DUCT 

    Refer to PROCEDURE - Step 6

  47. REMOVE NO. 1 TRANSMISSION OIL COOLER HOSE ASSEMBLY 
    1. GTY1237920Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  48. DISCONNECT NO. 6 INVERTER COOLING HOSE 
    1. GTY1241197Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  49. DISCONNECT NO. 4 INVERTER COOLING HOSE AND NO. 5 INVERTER COOLING HOSE 
    1. GTY1238819Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Disengage the 2 clamps and disconnect the engine wire from the exhaust sensor bracket.
      2. Remove the bolt and exhaust sensor bracket.
      3. Disconnect the engine wire connector.
      4. Disengage the 2 clamps.
      5. Disconnect the No. 2 air fuel ratio sensor connector.
    2. GTY1237912Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. GTY1227763Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Pull Out in this Direction - -
      1. Pull out the No. 4 inverter cooling hose and No. 5 inverter cooling hose toward the vehicle side as shown in the illustration.
        NOTE:

        When removing the engine assembly with transaxle from the vehicle, secure the inverter cooling hose on the vehicle side with tape to prevent it from being damaged by interference or catching on parts.

  50. SEPARATE STEERING INTERMEDIATE SHAFT ASSEMBLY 
    Refer to PROCEDURE - Step 5
  51. REMOVE FRONT DRIVE SHAFT ASSEMBLY 

    Refer to REMOVAL [12/2023 - ]

  52. SEPARATE TIE ROD ASSEMBLY LH 
    Refer to PROCEDURE - Step 6
  53. SEPARATE TIE ROD ASSEMBLY RH 
    1. Perform the same procedure as for the LH side.
  54. REMOVE SUSPENSION TOWER DAMPER 
    Refer to PROCEDURE - Step 4
  55. REMOVE ENGINE ASSEMBLY WITH TRANSAXLE 
    1. GTY1231338Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Attachments - -
      1. Set the engine assembly with transaxle on an engine lifter.
        NOTE:
        • Using height adjustment attachments and plate lift attachments, keep the engine assembly with transaxle level.
        • Do not perform any procedures while the engine assembly is suspended because doing so may cause the engine assembly to drop, resulting in injury. However, the engine assembly needs to be suspended when it is installed to or removed from an engine stand.
        • To prevent the engine assembly from unexpectedly moving, securely support the engine assembly until it is secured to an engine stand.
    2. GTY1239256Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Front Bumper Extension Sub-assembly RH *2 Front Bumper Extension Sub-assembly LH
      Bolt Nut
    3. GTY1236846Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. GTY1234640Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt Nut
      1. Remove the 3 bolts and nut and separate the engine mounting insulator sub-assembly RH from the engine mounting bracket RH.
      2. Remove the 4 bolts and the engine mounting stay LH from the engine mounting insulator sub-assembly LH.
      3. Remove the 4 bolts and separate the engine mounting insulator sub-assembly LH from the hybrid vehicle transaxle assembly.
      4. Remove the 2 bolts (A), 4 bolts (B), front suspension member brace rear LH and front suspension member brace rear RH from the front frame assembly and vehicle body.
      5. Operate the engine lifter and remove the engine assembly with transaxle from the vehicle.
        NOTE:
        • Make sure that the engine assembly with transaxle is clear of all wiring and hoses.
        • While lowering the engine assembly with transaxle from the vehicle, do not allow it to contact the vehicle.
  56. DISCONNECT WIRE HARNESS 

    Refer to PROCEDURE - Step 8

  57. REMOVE NO. 2 EGR PIPE 
    Refer to PROCEDURE - Step 16
  58. REMOVE NO. 2 EGR PIPE GASKET 

    Refer to PROCEDURE - Step 17

  59. DISCONNECT NO. 10 WATER BY-PASS HOSE AND NO. 11 WATER BY-PASS HOSE 

    Refer to PROCEDURE - Step 11

  60. DISCONNECT NO. 6 WATER BY-PASS HOSE 

    Refer to PROCEDURE - Step 12

  61. REMOVE EGR VALVE ASSEMBLY 

    Refer to PROCEDURE - Step 13

  62. REMOVE EGR INLET GASKET 

    Refer to PROCEDURE - Step 14

  63. INSTALL ENGINE HANGERS 
    1. GTY1230562Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A for Bank 1 *B for Bank 2
      *1 No. 1 Engine Hanger *2 No. 2 Engine Hanger
      1. Install the No. 1 engine hanger and No. 2 engine hanger with the 4 bolts as shown in the illustration.

        Torque: 33 N.m (337 kgf/cm, 24 ft.lbf) 

        HINT: 

        No. 1 Engine Hanger 12281-31121
        No. 2 Engine Hanger 12282-31100
        Bolt 91671-10825
      2. Using an engine sling device and engine lift, secure the engine assembly with transaxle.
        NOTE:
        • Pay attention to the angle of the sling device as the engine assembly or No. 1 engine hanger and No. 2 engine hanger may be damaged or deformed if the angle is incorrect.
        • Do not perform any procedures while the engine assembly is suspended because doing so may cause the engine assembly to drop, resulting in injury. However, the engine assembly needs to be suspended when it is installed to or removed from an engine stand.
  64. REMOVE ENGINE WIRE 

    HINT: 

    As the illustration shown is an example, the actual details may differ.

    GTY997772Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  65. REMOVE HYBRID VEHICLE TRANSAXLE ASSEMBLY 

    Refer to REMOVAL [12/2023 - ]

  66. REMOVE TRANSMISSION INPUT DAMPER ASSEMBLY 
    See step  2
  67. REMOVE FLYWHEEL SUB-ASSEMBLY 
    See step  3
  68. REMOVE MANIFOLD STAY 
    Refer to PROCEDURE - Step 4
  69. REMOVE EXHAUST MANIFOLD ASSEMBLY RH 
    Refer to PROCEDURE - Step 5
  70. REMOVE EXHAUST MANIFOLD TO HEAD GASKET 

    Refer to PROCEDURE - Step 6

  71. REMOVE NO. 2 EXHAUST MANIFOLD HEAT INSULATOR 
    Refer to PROCEDURE - Step 7
  72. REMOVE NO. 2 MANIFOLD STAY 
    Refer to PROCEDURE - Step 9
  73. REMOVE EXHAUST MANIFOLD ASSEMBLY LH 
    Refer to PROCEDURE - Step 10
  74. REMOVE EXHAUST MANIFOLD TO HEAD GASKET LH 

    Refer to PROCEDURE - Step 11

  75. INSTALL ENGINE ASSEMBLY TO ENGINE STAND 
    1. GTY996339Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  76. REMOVE ENGINE HANGERS 
  77. REMOVE ENGINE MOUNTING INSULATOR SUB-ASSEMBLY RH 

    HINT: 

    Perform this procedure only when replacement of the engine mounting insulator sub-assembly RH is necessary.

    1. GTY1241194Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  78. REMOVE ENGINE MOUNTING SPACER 

    HINT: 

    Perform this procedure only when replacement of the engine mounting spacer is necessary.

    1. GTY1237906Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  79. REMOVE ENGINE MOUNTING INSULATOR SUB-ASSEMBLY LH 

    HINT: 

    Perform this procedure only when replacement of the engine mounting insulator sub-assembly LH is necessary.

    1. GTY1241195Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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