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Home >> Lexus >> 2023 >> LX 600 Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission System - Service Information (1 Of 2) >> Automatic Transmission Assembly >> Installation [12/2021 - ] >> Procedure

Installation [12/2021 - ]: Procedure

  1. INSTALL TORQUE CONVERTER ASSEMBLY 
    1. GTY1063274Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Straightedge - -
      *a Torque converter assembly contact surface of the drive plate *b Automatic transmission assembly with transfer assembly contact surface of the engine assembly
      1. Using a vernier caliper and straightedge, measure the dimension A between the automatic transmission assembly with transfer assembly contact surface of the engine assembly and the torque converter assembly contact surface of the drive plate.

        Measurement Method

        B - C = A

    2. GTY1062961Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Protrusion of the Oil Pump Drive Sprocket *b Cutout
      1. Using a screwdriver with its tip wrapped with protective tape, align the oil pump drive sprocket so that it is perpendicular as shown in the illustration.
        NOTE:

        Do not damage the front oil pump cover seal.

      2. Align the cutout on the torque converter assembly with the protrusion on the oil pump drive sprocket and attach the spline on the input shaft to the spline on the turbine liner.
        NOTE:
        • Install the torque converter assembly to the input shaft while keeping it horizontal.
        • Do not damage the front oil pump cover seal.
        • Make sure the cutout on the torque converter assembly and the protrusion on the oil pump drive sprocket are properly aligned.
    3. GTY1063830Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Rotates Smoothly - -
      1. Using a vernier caliper and straightedge, measure the dimension D shown in the illustration and check that the dimension D is more than the dimension A, which was measured in the previous step.

        Standard

        Dimension D = Dimension A + 1.0 mm (0.0394 in.) or more

      2. Check that the torque converter assembly rotates smoothly.
  2. INSTALL WIRE HARNESS CLAMP BRACKET 

    Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

  3. INSTALL EXHAUST SENSOR CLAMP BRACKET 

    Torque: 13 N.m (133 kgf/cm, 10 ft.lbf) 

  4. INSTALL TRANSFER ASSEMBLY 
    1. GTY1064024Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Install the transfer assembly to the automatic transmission assembly with the 8 bolts.

        Torque: 40 N.m (408 kgf/cm, 30 ft.lbf) 

        NOTE:

        When installing the transfer assembly to the automatic transmission assembly, make sure that the automatic transmission assembly and oil seal do not become damaged.

  5. INSTALL REAR ENGINE MOUNTING INSULATOR 
    Refer to PROCEDURE - Step 7
  6. INSTALL AUTOMATIC TRANSMISSION ASSEMBLY WITH TRANSFER ASSEMBLY 
    NOTE:

    When docking is performed with the torque converter assembly disconnected, internal gear parts may be damaged and cause a breakdown.

    GTY1036070Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    During the docking procedure, do not reuse an automatic transmission with transfer assembly with dimensions of 6.5 mm (0.256 in.) or less as shown in the illustration.

    1. GTY1064297Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Drive Plate *2 Crankshaft
      *a Matchmark *b Torque Converter Assembly Centerpiece
      Knock Pin Bolt A
      Bolt B Clutch Spline Grease
      1. Confirm that the 2 knock pins are installed to the engine assembly and are not damaged.
      2. Make sure that the matchmark is positioned as shown in the illustration.
      3. Apply clutch spline grease to the surface the crankshaft that contacts the torque converter assembly centerpiece.

        Clutch Spline Grease

        Toyota Genuine Clutch Spline Grease or equivalent

        Maximum Grease Amount

        Approximately 1 g (0.0353 oz.)

      4. While keeping the engine assembly and automatic transmission assembly with transfer assembly horizontal, align the 2 knock pins with the holes in the automatic transmission assembly with transfer assembly and install the automatic transmission assembly with transfer assembly with the 11 bolts.

        for bolt A 

        Torque: 71 N.m (724 kgf/cm, 52 ft.lbf) 

        for bolt B 

        Torque: 37 N.m (377 kgf/cm, 27 ft.lbf) 

        NOTE:
        • Do not use excessive force when installing the automatic transmission assembly with transfer assembly.
        • When mounting the automatic transmission assembly with transfer assembly to the engine assembly, make sure to securely fit the 2 knock pins into the knock holes.
        • When tightening the bolts, make sure that the contact surfaces of the engine assembly and the automatic transmission assembly with transfer assembly are in close contact with one another.
        • When installing the automatic transmission assembly with transfer assembly, make sure that the oil cooler tube does not become damaged.
        • Check that the torque converter assembly rotates smoothly after installation of the automatic transmission assembly with transfer assembly.

        HINT: 

        Item Length
        Bolt A 50 mm (1.97 in.)
        Bolt B 45 mm (1.77 in.)
  7. CONNECT WIRE HARNESS 
    1. GTY1063676Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Transmission Wire Connector *b TCM connector
      Connector Bolt
      Push Up Securely Lock
      1. Connect the wire harness to the automatic transmission assembly with transfer assembly with the 5 bolts.

        Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

      2. Attach the clamp.
      3. Connect the 5 connectors.
        NOTE:
        • Push up the lever until the claw of the transmission wire connector makes a connection sound.
        • Securely lock the TCM connector lever.
  8. CONNECT TRANSFER BREATHER HOSE SUB-ASSEMBLY 
  9. CONNECT WIRE HARNESS CLAMP BRACKET 

    Refer to PROCEDURE - Step 6

  10. INSTALL NO. 3 FRAME CROSSMEMBER ASSEMBLY 
    Refer to PROCEDURE - Step 8
  11. INSTALL NO. 1 TRANSMISSION CONTROL CABLE BRACKET 

    Torque: 12 N.m (122 kgf/cm, 9 ft.lbf) 

  12. CONNECT TRANSMISSION CONTROL CABLE ASSEMBLY 
    See step  3
  13. INSTALL TRANSMISSION CONTROL CABLE INSULATOR 
    See step  2
  14. INSTALL TRANSMISSION INSULATOR RH 

    Torque: 14 N.m (143 kgf/cm, 10 ft.lbf) 

  15. CONNECT OIL COOLER TUBE SUB-ASSEMBLY 
    1. GTY1063232Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a 0 to 3 mm (0 to 0.118 in.) *b 2 to 7 mm (0.0788 to 0.275 in.)
      *c Paint Mark *d Paint mark must be within this range
      *e Right Side of the Vehicle - -
      1. Connect the oil cooler tube sub-assembly to the engine assembly with the 2 bolts.

        Torque: 13.5 N.m (138 kgf/cm, 10 ft.lbf) 

        HINT: 

        Tightening order: Temporarily install bolt (A) →Tighten bolt (B) → Tighten bolt (A)

      2. Connect the 2 hoses of the oil cooler tube sub-assembly to the transmission oil thermostat, and slide the 2 hose clips to secure the hose.
        NOTE:
        • Do not allow any foreign matter into the hoses.
        • Face the claws of the hose clips to the right side of the vehicle.
        • The paint mark must be within the range shown in the illustration.
  16. INSTALL DRIVE PLATE AND TORQUE CONVERTER SETTING BOLT 
    1. GTY1038570Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Install the torque converter assembly to the drive plate and ring gear sub-assembly with the 6 drive plate and torque converter setting bolts.

        Torque: 64 N.m (653 kgf/cm, 47 ft.lbf) 

        NOTE:

        Start by tightening the positioning drive plate and torque converter setting bolt (black), and then uniformly tighten the remaining 5 drive plate and torque converter setting bolts (silver).

        HINT: 

        Turn the crankshaft to a position where the drive plate and torque converter setting bolts can be installed, and install the drive plate and torque converter setting bolts while securing the crankshaft pulley bolt with a wrench.

  17. INSTALL FLYWHEEL HOUSING SIDE COVER 
  18. ADD TRANSFER OIL 
    Refer to PROCEDURE - Step 4
  19. INSTALL LOWER TRANSFER CASE PROTECTOR 

    Refer to PROCEDURE - Step 5

  20. INSTALL TRANSFER HEAT INSULATOR 

    Refer to PROCEDURE - Step 11

  21. INSTALL TRANSMISSION UNDER COVER ASSEMBLY 

    Refer to PROCEDURE - Step 6

  22. INSTALL STARTER ASSEMBLY 

    HINT: 

    Install the under cover after completing the adjustment and inspection procedure.

  23. INSTALL CONVERTER ASSEMBLY RH WITH CATALYST 

    Refer to INSTALLATION [12/2021 - ]

    HINT: 

    Install the under cover after completing the adjustment and inspection procedure.

  24. INSTALL CONVERTER ASSEMBLY LH WITH CATALYST 

    Refer to INSTALLATION [12/2021 - ]

    HINT: 

    Install the under cover after completing the adjustment and inspection procedure.

  25. INSTALL REAR PROPELLER SHAFT ASSEMBLY 

    Refer to INSTALLATION [12/2021 - ]

    HINT: 

    Install the under cover after completing the adjustment and inspection procedure.

  26. INSTALL FRONT PROPELLER SHAFT ASSEMBLY 

    Refer to INSTALLATION [12/2021 - ]

    HINT: 

    Install the under cover after completing the adjustment and inspection procedure.

  27. INSPECT SHIFT LEVER POSITION 
    See step  2
  28. ADD AND ADJUST AUTOMATIC TRANSMISSION FLUID 

    Refer to ADJUSTMENT [12/2021 - ] 

  29. INSPECT FOR EXHAUST GAS LEAK 

    Refer to PROCEDURE - Step 4

  30. ECU CONFIGURATION 
    NOTE:
    • After replacing the automatic transmission assembly, make sure to perform ECU configuration.
    • After performing the ECU configuration procedure and update ECU security key procedure, make sure to perform the initialization procedure for when the cable has been disconnected and reconnected to the negative (-) battery terminal.
    HINT: If the automatic transmission assembly has been replaced, perform ECU configuration.Refer to ECU CONFIGURATION [12/2021 - ]
  31. UPDATE ECU SECURITY KEY 

    Refer to UPDATE ECU SECURITY KEY [12/2021 - ]

  32. RESET MEMORY 
    Refer to INITIALIZATION [12/2021 - ]
  33. CATALYST DETERIORATION CONFIRMATION DRIVING PATTERN 
    HINT: 
    Proceed to "CONFIRMATION DRIVING PATTERN".
    w/ Canister Pump Module:
    Refer to DTC P0420-00: Catalyst System Efficiency Below Threshold Bank 1; DTC P0430-00: Catalyst System Efficiency Below Threshold Bank 2 [12/2021 - 10/2023] , or refer to DTC P0420-00: Catalyst System Efficiency Below Threshold Bank 1; DTC P0430-00: Catalyst System Efficiency Below Threshold Bank 2 [10/2023 - ]
    w/o Canister Pump Module:
    Refer to DTC P0420-00: Catalyst System Efficiency Below Threshold Bank 1; DTC P0430-00: Catalyst System Efficiency Below Threshold Bank 2 [12/2021 - ]
  34. ATF THERMAL DEGRADATION ESTIMATE RESET 
    NOTE:

    Approximately 50% or more of the ATF has been replaced during a repair of the transmission or a similar operation.

    Refer to INITIALIZATION [12/2021 - ]