HYBRID VEHICLE TRANSMISSION REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during the hybrid vehicle transmission assembly removal/installation are shown below.

Note

After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

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Necessary Procedure After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
Auxiliary battery terminal is disconnected/reconnected Memorize steering angle neutral point LKA/LDA system

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Pre-collision system
Parking assist monitor system

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Steering sensor zero point calibration Variable gear ratio steering system

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Replacement of ECM Vehicle Identification Number (VIN) registration DTC P063051 is output

w/ Canister Pump Module: Click here

w/o Canister Pump Module: Click here


  • Air leaks from intake system

  • Gas leak from exhaust system is repaired

 Inspection after repair

  • Poor idle, etc.

  • Engine start function, etc.

w/ Canister Pump Module: Click here

w/o Canister Pump Module: Click here

Replacement of engine assembly Inspection after repair
Drive learning*2

  • Large shift shock

  • Deterioration of fuel efficiency

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Parts between the steering wheel and tires have been removed/installed, replaced or adjusted Perform Actuator Angle Neutral Point Calibration and Initialization

  • Variable gear ratio steering system

  • Steering wheel off-center

  • DTCs are output

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Suspension, tires, etc*1 Television camera assembly optical axis (Back camera position setting) Parking assist monitor system

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Replacement of hybrid vehicle transmission assembly

  • Initialize resolver*3

  • Resolver learning

  • DTCs are stored

  • Slight vibration at a vehicle speed of 5 km/h (3 mph) or less

  • Shock or vibration during acceleration

  • Shock, vibration during shift operations

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  • A/T code reset

  • A/T code registration(Register compensation code)

  • Drive learning

  • Large shift shock

  • Deterioration of fuel efficiency

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*1: The vehicle height changes due to suspension or tire replacement.
*2: After performing the confirmation driving pattern, if the shock during acceleration is large after calibrating the "A/T Code Reset", perform driving learning.
*3: If it is necessary to replace the hybrid vehicle transmission assembly, make sure to perform resolver initialization before starting work.

CAUTION:


  • B004A7G

    This vehicle has contains high voltage circuits standardized with orange colored wiring and connectors, so follow the instructions in this manual to perform the procedures correctly.

  • If the correct procedures are not followed according to the instructions in this manual, there is a danger of electric shock from the high voltage circuits.

  • B004BJX

    Be sure to wear insulating gloves when working on high voltage wiring or components.

  • If work is performed without wearing insulating gloves, there is a danger of electric shock.

  • B004CN9C01
    *a An Object Exceeding Weight Limit of Engine Lifter

    The engine assembly with hybrid vehicle transmission assembly is very heavy. Be sure to follow the procedure described in the repair manual, or the engine lifter may suddenly drop or the engine assembly with hybrid vehicle transmission assembly may fall off the engine lifter.

  • B004CM2

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

Note

After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, be sure to wait for the time specified in the following table before disconnecting the cable from the negative (-) auxiliary battery terminal.

Waiting Time before Disconnecting Cable from Negative (-) Auxiliary Battery Terminal
System Name See Procedure
Vehicle enrolled in Lexus Enform system or safety connect system 6 minutes
Vehicle not enrolled in Lexus Enform system and safety connect system 1 minute

PROCEDURE


  1. PRECAUTION

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  2. PERFORM RESOLVER INITIALIZATION

    Click here

  3. REMOVE ENGINE ASSEMBLY WITH HYBRID TRANSMISSION

    Click here

  4. REMOVE NO. 1 EXHAUST PIPE SUPPORT BRACKET SUB-ASSEMBLY


    1. B004CLC

      Remove the 2 bolts and No. 1 exhaust pipe support bracket sub-assembly.

  5. REMOVE NO. 1 EGR PIPE

    Click here

  6. REMOVE EXHAUST MANIFOLD ASSEMBLY LH

    Click here

  7. REMOVE EXHAUST MANIFOLD ASSEMBLY RH

    Click here

  8. REMOVE GENERATOR CABLE

    Click here

  9. REMOVE MOTOR CABLE

    Click here

  10. DISCONNECT WIRE HARNESS


    1. Disconnect the 6 wire harness connectors.

      B004AOMC01
      B004C4F Wire Harness Connector B004ANI Bolt

    2. Remove the 6 bolts and disconnect the 5 wire harness clamps from the hybrid vehicle transmission assembly.

  11. REMOVE TRANSMISSION OIL PUMP INSULATOR


    1. B004AS6

      Remove the 3 bolts and transmission oil pump insulator.

  12. REMOVE NO. 2 TRANSMISSION BREATHER ASSEMBLY


    1. B004B4S

      Disconnect the 4 clamps.

    2. Remove the bolt and No. 2 transmission breather assembly.

    3. B004BE3

      Remove the O-ring from the No. 2 transmission breather assembly.

  13. REMOVE NO. 1 TRANSMISSION BREATHER ASSEMBLY


    1. B004BHQ

      Disconnect the 3 clamps.

    2. Remove the 2 bolts and No. 1 transmission breather assembly.

    3. B004BG0

      Slide the clip and remove the transmission breather hose from the No. 1 transmission breather assembly.

  14. REMOVE ENGINE MOTOR CABLE CLAMP BRACKET


    1. for LHD:


      1. B004A6K

        Remove the bolt and engine motor cable clamp bracket.

      2. B004B5V

        Remove the 2 bolts and engine motor cable clamp bracket.

      3. B004BLJ

        Remove the bolt and engine motor cable clamp bracket.

    2. for RHD:


      1. B004C84

        Remove the bolt and engine motor cable clamp bracket.

      2. B004BGW

        Remove the 2 bolts and engine motor cable clamp bracket.

  15. REMOVE WIRE HARNESS CLAMP BRACKET


    1. B0049TM

      Remove the bolt and wiring harness clamp bracket.

  16. REMOVE OIL COOLER WITHOUT HOSE TUBE SUB-ASSEMBLY


    1. B004A1B

      Slide the clamp and disconnect the No. 2 oil cooler inlet hose from the motor cooling cooler.

    2. Disconnect the oil pump thermistor connector.

      B004AT5

    3. Disconnect the 9 wire harness clamps.

    4. Remove the 2 bolts (A), and disconnect the oil cooler without hose tube sub-assembly.

      B004AUGC01
      *1 Oil Cooler without Hose Tube Sub-assembly *2 Oil Cooler Union Sub-assembly

    5. Remove the 2 union bolts, 4 gaskets, 2 bolts (B) and oil cooler union sub-assembly.

    6. B004CKD

      Slide the clamp and remove the No. 2 oil cooler inlet hose from the oil cooler without hose tube sub-assembly.

    7. B004C06

      Slide the clamp and remove the No. 2 oil cooler outlet hose from the oil cooler without hose tube sub-assembly.

    8. B004BYQ

      Slide the 2 clamps and remove the No. 1 oil cooler inlet hose from the oil cooler without hose tube sub-assembly and oil cooler union sub-assembly.

    9. B004CSH

      Slide the 2 clamps and remove the No. 1 oil cooler outlet hose from the oil cooler without hose tube sub-assembly and oil cooler union sub-assembly.

  17. REMOVE STARTER HOLE INSULATOR


    1. B004BRS

      Remove the 2 bolts and starter hole insulator.

  18. REMOVE FLYWHEEL HOUSING SIDE COVER


    1. B004CKY

      Remove the flywheel housing side cover from the engine assembly.

  19. REMOVE ENGINE REAR MOUNTING MEMBER


    1. B004BIRC01
      B004C4F Bolt
      B004ANI Nut and Spring Washer

      Remove the nut, spring washer and 2 bolts and disconnect the No. 2 parking lock release cable assembly from the shift control actuator assembly.

    2. B004BSH

      Remove the 3 nuts and engine rear mounting member.

  20. REMOVE REAR ENGINE MOUNTING INSULATOR


    1. B004CO5

      Remove the 4 bolts and rear engine mounting insulator.

  21. REMOVE HYBRID VEHICLE TRANSMISSION ASSEMBLY


    1. Using a rope or equivalent, support the hybrid vehicle transmission assembly at the positions shown in the illustration.

      CAUTION:

      Secure the engine assembly to the engine lifter using a belt, etc. to prevent it from falling.

      B004CMF
    2. B004APR

      Remove the 9 bolts and hybrid vehicle transmission assembly from the engine assembly.

      CAUTION:


      • Do not raise the hybrid vehicle transmission assembly more than necessary

      • Make sure to confirm the center of the gravity of the hybrid vehicle transmission assembly when supporting it.

      Note

      Do not use excessive force to pry out the hybrid vehicle transmission assembly when separating it from the engine assembly to prevent the knock pins from being damaged.

  22. REMOVE BRACKET


    1. B004BLYC01
      *1 No. 3 Wiring Harness Clamp Bracket
      *2 No. 2 Wiring Harness Clamp Bracket
      *3 Wiring Harness Clamp Bracket
      *4 No. 1 Wiring Harness Clamp Bracket
      *5 Transmission Oil Pump Insulator Bracket
      *6 No. 2 Heat Insulator Bracket

      Remove the 6 bolts and 6 brackets.

  23. REMOVE DYNAMIC DAMPER


    1. B004BDF

      Using a T40 ''TORX'' socket wrench, remove the 2 bolts and dynamic damper.

    2. B004B9Q

      Using a T40 ''TORX'' socket wrench, remove the 2 bolts and dynamic damper.

  24. REMOVE AUTOMATIC TRANSMISSION CASE COVER


    1. B004BKL

      Remove the 4 bolts and automatic transmission case cover.