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Home >> Lexus >> 2019 >> RX 450h Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Hybrid Transaxle [P313] (Service Information) >> Hybrid Vehicle Transaxle >> Removal [12/2017 - 08/2019] >> Procedure

Removal [12/2017 - 08/2019]: Procedure

  1. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD 
  2. SECURE STEERING WHEEL 

    Refer to PROCEDURE - Step 2

  3. REMOVE INVERTER WITH CONVERTER ASSEMBLY 

    Refer to REMOVAL [12/2017 - 08/2019]

  4. REMOVE INTAKE AIR SURGE TANK ASSEMBLY 

    Refer to REMOVAL [12/2017 - 08/2019]

  5. REMOVE INVERTER TRAY BRACKET SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 24

  6. REMOVE BATTERY CARRIER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 25

  7. REMOVE BATTERY BRACKET REINFORCEMENT 
    1. Remove the 2 bolts and battery bracket reinforcement from the vehicle body.
      GTY644691Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. DISCONNECT TRANSMISSION CONTROL CABLE ASSEMBLY 
    1. Remove the nut and disconnect the transmission control cable assembly from the control shaft lever.
      GTY679598Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using a screwdriver, disengage the 4 claws and disconnect the transmission control cable assembly with the clip from the No. 1 transmission control cable bracket.
    3. Using a screwdriver, disengage the 2 claws and remove the clip from the transmission control cable assembly.
      GTY635292Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Disconnect the transmission control cable assembly from the No. 2 transmission control cable bracket, motor cable bracket and No. 3 transmission control cable bracket.
      GTY629976Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 2 Transmission Control Cable Bracket
      *2 Motor Cable Bracket
      *3 No. 3 Transmission Control Cable Bracket
  9. DRAIN ENGINE COOLANT (for Engine) 

    Refer to PROCEDURE - Step 3 [10/2015 - 03/2018] , or refer to PROCEDURE - Step 3 [03/2018 - ]

  10. DISCONNECT NO. 1 RADIATOR HOSE 

    Refer to PROCEDURE - Step 13

  11. REMOVE ECM ASSEMBLY 

    Refer to PROCEDURE - Step 6 , or refer to PROCEDURE - Step 8

  12. REMOVE FRONT WHEEL OPENING EXTENSION PAD LH 

    Refer to PROCEDURE - Step 4

  13. REMOVE NO. 3 ENGINE UNDER COVER 

    Refer to PROCEDURE - Step 5

  14. REMOVE FRONT WHEEL OPENING EXTENSION PAD RH 

    Refer to PROCEDURE - Step 6

  15. REMOVE NO. 1 ENGINE UNDER COVER 

    Refer to PROCEDURE - Step 7

  16. REMOVE NO. 2 ENGINE UNDER COVER 

    Refer to PROCEDURE - Step 8

  17. REMOVE FRONT FENDER APRON SEAL LH 

    Refer to PROCEDURE - Step 9

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

    Refer to PROCEDURE - Step 16

  19. SEPARATE STEERING INTERMEDIATE SHAFT ASSEMBLY 

    Refer to PROCEDURE - Step 5

  20. SEPARATE FRONT STABILIZER LINK ASSEMBLY LH 

    Refer to PROCEDURE - Step 6

  21. SEPARATE FRONT STABILIZER LINK ASSEMBLY RH 

    HINT: 

    Perform the same procedure as for the LH side.

  22. REMOVE FRONT DRIVE SHAFT ASSEMBLY 

    Refer to REMOVAL [10/2015 - ]

  23. REMOVE FRONT NO. 1 STABILIZER BRACKET LH 

    Refer to PROCEDURE - Step 13

  24. REMOVE FRONT NO. 1 STABILIZER BRACKET RH 

    HINT: 

    Perform the same procedure as for the LH side.

  25. SEPARATE FRONT STABILIZER BAR 

    Refer to PROCEDURE - Step 15

  26. REMOVE STEERING LINK ASSEMBLY 

    Refer to PROCEDURE - Step 15

  27. REMOVE FRONT STABILIZER BAR 

    Refer to PROCEDURE - Step 17

  28. REMOVE WIRE HARNESS CLAMP BRACKET 
    1. Disconnect the air fuel ratio sensor (for Bank 1) connector.
      GTY630808Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the hose clamp.
      GTY650909Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Hose Clamp
      *b Wire Harness Clamp
    3. Disengage the 3 wire harness clamps.
    4. Remove the bolt and wire harness clamp bracket from the engine assembly.
  29. REMOVE FUEL PUMP PROTECTOR 

    Refer to PROCEDURE - Step 8 , or refer to PROCEDURE - Step 10

  30. INSTALL ENGINE HANGER 
    1. Disengage the clamp.
      GTY644702Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the bolt and wire harness clamp bracket from the engine assembly.
    3. Install the No. 1 engine hanger to the engine assembly with the bolt.
      GTY683193Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 1 Engine Hanger *2 No. 2 Engine Hanger

      Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf) 

      Item Part No.
      No. 1 Engine Hanger 12281-36020
      Bolt 91552-81040
    4. Install the No. 2 engine hanger to the engine assembly with the 2 bolts.

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

      Item Part No.
      No. 2 Engine Hanger 12282-31100
      Bolt 91671-10825
  31. INSTALL ENGINE SUPPORT BRIDGE 
    1. Install SST to the vehicle body as shown in the illustration.
      GTY629981Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Support Shaft *b Front Side Member
      *c Cloth *d Front Side
      *e Front Suspension Nut - -
      • SST: 09940-10020 
      WARNING:
      • Make sure that no oil or grease is on the front side member, and set the support shaft on the level surface of the front side member.
        GTY614759Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Support Shaft
        *b Front Side Member
      • The engine support bridge may fall off if any oil or grease is still on or it is installed on the unlevel surface.
      NOTE:
      • Prevent SST from contacting the vehicle body exterior and windshield glass.
      • To prevent damage to the engine hood, place pieces of cloth between the engine hood and SST.
      • Lightly shake SST by hand to make sure it is securely installed before performing work.
    2. Turn the threaded portion of each support shaft to adjust its height until the sub beams are parallel to the ground.
      GTY649983Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Support Shaft
      *b Sub Beam
      *c Front Side Member
      *d Threaded Portion
    3. Install the chain block to the sling bracket.
      GTY630383Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Chain Block *b Sling Bracket
      *c Fuse Shackle *d Shackle (A)
    4. Install the division bar to the chain block with the shackles.
      WARNING:
      • Make sure the fuse shackle is on the chain block side and the shackle (A) is on the division bar side as shown in the illustration so that the fuse bolt is visible and can be checked for deformation easily.
        GTY668065Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Fuse Shackle
        *b Shackle (A)
      • If the fuse shackle is installed upside down, deformation of the fuse bolt will not be visible and cannot be used to tell if the load capacity of the engine support bridge has been exceeded. If the load capacity is exceeded, it may cause the engine support bridge to damage the vehicle and the engine assembly with hybrid vehicle transaxle assembly may fall.
      • Make sure that the fuse bolt of the fuse shackle is free of damage, such as deformation or cracks. If damaged, replace the fuse shackle.
        GTY631927Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Fuse Shackle
        *b Fuse Bolt
      • If a deformed fuse bolt is used, it cannot be used to tell if the load capacity of the engine support bridge has been exceeded. If the load capacity is exceeded, it may cause the engine support bridge to damage the vehicle and the engine assembly with hybrid vehicle transaxle assembly may fall.
    5. Connect the division bar to the No. 1 engine hanger with the 2 shackles (A).
      GTY654911Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 1 Engine Hanger *2 No. 2 Engine Hanger
      *a Division Bar *b Shackle (A)
      *c Chain - -
    6. Connect the division bar to the No. 2 engine hanger with the shackle (A) and chain.
      NOTE:

      Connect the 2nd link of the chain to the No. 2 engine hanger.

    7. Make sure the distance between the chain block assembly and suspension ring is 120 mm (4.72 in.) or more.

      HINT: 

      If the suspension height is less than 120 mm, adjust the links of the chain which connect the division bar and engine hanger.

      GTY683697Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a 120 mm (4.72 in.) or more
    8. Adjust the position of the support bracket LH and RH so that the length of dimension (A) and (B) are 240 mm (9.45 in.) as shown in the illustration.
      GTY682447Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Support Bracket LH *b Support Bracket RH
      *c Dimension (A): 240 mm (9.45 in.) *d Dimension (B): 240 mm (9.45 in.)
      *e Sub Beam - -
      Front of Vehicle - -
    9. Adjust the positions of the chain block assembly, support brackets and main beam so that the chain of the chain block assembly is perpendicular to the main beam and the length of the main beam on the outer side of the support bracket LH and RH is the same as shown in the illustration.
      GTY679616Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Chain Block Assembly *b Main Beam
      *c Dimension (C) *d Dimension (D)
      *e Right to Left Adjustment - -
      WARNING:
      • To prevent the engine with hybrid vehicle transaxle assembly from falling, make sure that the length of dimension (C) and dimension (D) are equal.
      • Do not perform any procedures if the length dimension (C) and dimension (D) are not equal.
        GTY651315Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Main Beam
      • Performing any procedure when the length of dimension (C) and dimension (D) are not equal may cause the engine assembly with hybrid vehicle transaxle assembly and engine support bridge to fall, possibly causing serious injury.
    10. Confirm the appropriate installation state of the engine support bridge and tighten the 6 wing bolts and 2 bolts.
      GTY657556Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Wing Bolt *b Bolt

      Bolt 

      Torque: 30 N*m (306 kgf*cm, 22 ft.*lbf) 

      WARNING:
      • Do not perform any procedures before tightening the bolts to the specified torque.
        GTY638600Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • Performing procedures without tightening to the bolts to the specified torque, may cause the engine support bridge to fall.
    11. Tighten the chain block assembly until it cannot be moved any further by hand.
      GTY671700Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Turn
      WARNING:
      GTY647185Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a 41 N*m (418 kgf*cm, 30 ft.*lbf) or more
      • When suspending the engine with hybrid vehicle transaxle assembly, do not tighten the chain block assembly more than 41 N*m (418 kgf*cm, 30 ft.*lbf).
      • Tightening the chain block assembly more than 41 N*m (418 kgf*cm, 30 ft.*lbf) will cause the load capacity (400 kg (881.8 lb)) to be exceeded and may cause damage to the engine support bridge and vehicle body.
  32. REMOVE ENGINE MOUNTING INSULATOR LH 
    1. Remove the bolt and disconnect the generator cable.
      GTY679600Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the bolt and nut.
      GTY644705Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the 4 bolts and engine mounting insulator LH from the hybrid vehicle transaxle assembly.
      GTY679602Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  33. SEPARATE FRONT ENGINE MOUNTING INSULATOR 

    Refer to PROCEDURE - Step 31

  34. SEPARATE REAR ENGINE MOUNTING INSULATOR 

    Refer to PROCEDURE - Step 32

  35. REMOVE FRONT FRAME ASSEMBLY 

    Refer to PROCEDURE - Step 33

  36. DISCONNECT NO. 1 MOTOR COOLING HOSE 
    1. Slide the clip and while holding the area shown in the illustration, disconnect the No. 3 motor cooling hose from the outlet oil cooler tube sub-assembly.
      GTY958185Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 1 Motor Cooling Hose
      *2 No. 3 Motor Cooling Hose
      *a Hold Area
      *b Net Protector
      NOTE:

      Do not remove the No. 3 motor cooling hose while holding the net protector. If the No. 3 motor cooling hose is removed while holding the net protector, the No. 3 motor cooling hose may crack and hybrid transaxle fluid will leak.

    2. Slide the clip and while holding the area shown in the illustration, disconnect the No. 1 motor cooling hose from the inlet oil cooler tube sub-assembly.
      NOTE:

      Do not remove the No. 1 motor cooling hose while holding the net protector. If the No. 1 motor cooling hose is removed while holding the net protector, the No. 1 motor cooling hose may crack and hybrid transaxle fluid will leak.

  37. DISCONNECT INLET MOTOR HOSE 
    1. Slide the clip and while holding the area shown in the illustration, disconnect the outlet motor hose from the No. 3 motor cooling pipe.
      GTY958669Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Inlet Motor Hose
      *2 Outlet Motor Hose
      *a Hold Area
      *b Net Protector
      NOTE:

      Do not remove the outlet motor hose while holding the net protector. If the outlet motor hose is removed while holding the net protector, the outlet motor hose may crack and hybrid transaxle fluid will leak.

    2. Slide the clip and while holding the area shown in the illustration, disconnect the inlet motor hose from the No. 2 motor cooling pipe.
      NOTE:

      Do not remove the inlet motor hose while holding the net protector. If the inlet motor hose is removed while holding the net protector, the inlet motor hose may crack and hybrid transaxle fluid will leak.

  38. REMOVE NO. 2 MOTOR COOLING PIPE 
    1. Remove the bolt and No. 2 oil cooler tube clamp from the oil cooler tube clamp.
      GTY644073Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Loosen the flare nut of the No. 2 motor cooling pipe and remove the No. 2 motor cooling pipe from the union.
      GTY644074Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  39. REMOVE OIL COOLER TUBE CLAMP 
    1. Remove the bolt and oil cooler tube clamp from the hybrid vehicle transaxle assembly.
      GTY644072Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  40. DISCONNECT ENGINE WIRE 
    1. Disconnect the motor resolver sensor connector.
      GTY673029Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Motor Resolver Sensor Connector *b Shift Lever Position Sensor Connector
      *c Generator Resolver Sensor (Generator Temperature) Connector *d Motor Temperature Sensor Connector
    2. Disconnect the shift lever position sensor connector.
    3. Disconnect the generator resolver sensor (generator temperature) connector.
    4. Disconnect the motor temperature sensor connector.
    5. Disengage the 8 clamps to disconnect the engine wire from the hybrid vehicle transaxle assembly.
  41. REMOVE FRONT ENGINE MOUNTING INSULATOR 
    1. Remove the bolt and front engine mounting insulator from the front engine mounting bracket.
      GTY614249Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  42. REMOVE REAR ENGINE MOUNTING INSULATOR 
    1. Remove the bolt and rear engine mounting insulator from the rear engine mounting bracket.
      GTY679596Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  43. REMOVE MANIFOLD STAY 
    WARNING:

    To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

    1. Remove the bolt, nut and manifold stay from the rear engine mounting bracket and exhaust manifold (TWC: Front Catalyst).
      GTY644685Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  44. REMOVE REAR ENGINE MOUNTING BRACKET 
    1. Remove the 4 bolts and rear engine mounting bracket from the hybrid vehicle transaxle assembly.
      GTY644686Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  45. REMOVE MOTOR CABLE BRACKET 
    1. Disengage the clamp.
      GTY675064Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the bolt and motor cable bracket from the hybrid vehicle transaxle assembly.
      GTY644682Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  46. REMOVE NO. 3 AUTOMATIC TRANSMISSION CASE COVER 
    1. Disengage the clamp.
      GTY644684Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 2 bolts, clip and No. 3 automatic transmission case cover from the hybrid vehicle transaxle assembly.
  47. REMOVE FLYWHEEL HOUSING UNDER COVER 
    1. Remove the 2 bolts and flywheel housing under cover from the hybrid vehicle transaxle assembly.
      GTY644430Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  48. SUPPORT HYBRID VEHICLE TRANSAXLE ASSEMBLY 
    1. Using a transmission jack attachment, set the hybrid vehicle transaxle assembly on a transmission jack.
      NOTE:
      • Secure the hybrid vehicle transaxle assembly to the transmission jack using a suitable adapter, such as a rope or attachment.
      • To prevent the motor water jacket cover assembly from deforming, do not place any attachments under the motor water jacket cover assembly of the hybrid vehicle transaxle assembly.
  49. REMOVE HYBRID VEHICLE TRANSAXLE ASSEMBLY 
    1. Remove the 10 bolts and hybrid vehicle transaxle assembly from the engine assembly.
      GTY679539Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      To avoid damaging the knock pins, do not pry between the hybrid vehicle transaxle assembly and the engine assembly.

  50. REMOVE FRONT ENGINE MOUNTING BRACKET 
    1. Remove the 3 bolts and front engine mounting bracket from the hybrid vehicle transaxle assembly.
      GTY644080Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  51. REMOVE NO. 2 TRANSMISSION CONTROL CABLE BRACKET 
    1. Remove the bolt and No. 2 transmission control cable bracket from the hybrid vehicle transaxle assembly.
      GTY644082Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  52. REMOVE WIRE HARNESS CLAMP BRACKET 
    1. Remove the bolt and wire harness clamp bracket from the hybrid vehicle transaxle assembly.
      GTY644071Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  53. REMOVE OUTLET OIL COOLER TUBE SUB-ASSEMBLY 
    1. Remove the bolt and No. 2 oil cooler tube clamp from the No. 1 oil cooler tube clamp.
      GTY679461Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Loosen the flare nut of the outlet oil cooler tube sub-assembly and remove the outlet oil cooler tube sub-assembly from the union.
      GTY644076Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the union and gasket from the hybrid vehicle transaxle assembly.
      GTY644180Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  54. REMOVE NO. 3 MOTOR COOLING PIPE 
    1. Remove the oil cooler union bolt, gasket and No. 3 motor cooling pipe from the hybrid vehicle transaxle assembly.
      GTY644077Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  55. REMOVE NO. 1 OIL COOLER TUBE CLAMP 
    1. Remove the bolt and No. 1 oil cooler tube clamp from the hybrid vehicle transaxle assembly.
      GTY644075Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  56. REMOVE NO. 1 TRANSMISSION CONTROL CABLE BRACKET 
    1. Remove the 2 bolts and No. 1 transmission control cable bracket from the hybrid vehicle transaxle assembly.
      GTY679462Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  57. REMOVE HV TRANSAXLE MASS DAMPER 
    1. for LH Side:
      1. Remove the bolt and HV transaxle mass damper from the hybrid vehicle transaxle assembly.
        GTY644063Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. for RH Side:
      1. Remove the HV transaxle mass damper and gasket from the hybrid vehicle transaxle assembly.
        GTY644191Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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