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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> Steering >> Steering Gear >> Steering Gear - Service Information >> Steering Gear >> Installation [09/2023 - 12/2023] >> Procedure

Installation [09/2023 - 12/2023]: Procedure

  1. INSTALL TIE ROD ASSEMBLY LH 
    1. GTY1197819Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Matchmark - -
      1. Install the lock nut and tie rod assembly LH to the rack and pinion power steering gear assembly until the matchmarks are aligned.

        HINT: 

        After adjusting the toe-in, tighten the lock nut.

  2. INSTALL TIE ROD ASSEMBLY RH 
  3. INSTALL RACK AND PINION POWER STEERING GEAR ASSEMBLY 
    NOTE:

    Because the nut has its own stopper, do not turn the nut. Tighten the bolt with the nut secured.

    1. GTY1197827Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Bolt (A) 

      Torque: 133 N.m (1356 kgf/cm, 98 ft.lbf) 

      Bolt (B) 

      Torque: 88 N.m (897 kgf/cm, 65 ft.lbf) 

  4. INSTALL FRONT STABILIZER BAR WITH FRONT STABILIZER LINK ASSEMBLY 
    1. GTY1198056Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Install the front stabilizer bar with the 2 front stabilizer link assemblies to the front frame assembly with the 4 bolts.

        Torque: 50 N.m (510 kgf/cm, 37 ft.lbf) 

        NOTE:

        Temporarily tighten the bolts in the order of (D), (C) and (B), and then fully tighten the 4 bolts in the order of (A), (B), (C), and (D).

  5. INSTALL FRONT FRAME ASSEMBLY 

    Refer to PROCEDURE - Step 8

  6. CONNECT WIRE HARNESS 
    1. GTY1196184Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Install the wire harness to the rack and pinion power steering gear assembly with the 2 bolts.

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

      2. Connect the wire harness connector to the rack and pinion power steering gear assembly.

        HINT: 

        Make sure that the connector is fully inserted before rotating the lock lever to engage the lock.

  7. INSTALL STEERING GEAR HEAT INSULATOR 
    1. Fig 1: Steering Gear Heat Insulator Tightening Sequence
      GTY1195024Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Install the steering gear heat insulator to the rack and pinion power steering gear assembly with the 3 bolts in the order shown in the illustration.

        Torque: 8.0 N.m (82 kgf/cm, 71 in.lbf) 

  8. INSTALL ENGINE ASSEMBLY WITH TRANSAXLE 

    for T24A-FTS 1Motor-HEV Model: Refer to PROCEDURE - Step 36

    for T24A-FTS Gasoline Model: Refer to PROCEDURE - Step 33

  9. CONNECT TIE ROD ASSEMBLY LH 
    1. GTY1199509Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Connect the tie rod assembly LH to the steering knuckle LH with the nut.

        Torque: 49 N.m (500 kgf/cm, 36 ft.lbf) 

        NOTE:

        Do not damage the ball joint dust cover.

      2. Install a new cotter pin.
        NOTE:

        Further tighten the nut up to 60° if the holes for the cotter pin are not aligned.

  10. CONNECT TIE ROD ASSEMBLY RH 
  11. CONNECT STEERING INTERMEDIATE SHAFT ASSEMBLY 
    1. GTY1233698Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Matchmark - -
      1. Align the matchmarks on the steering intermediate shaft assembly and rack and pinion power steering gear assembly.
      2. Connect the steering intermediate shaft assembly to the rack and pinion power steering gear assembly.
      3. Install a bolt.

        Torque: 35 N.m (357 kgf/cm, 26 ft.lbf) 

  12. INSTALL FRONT WHEELS 

    Refer to INSTALLATION [09/2023 - ]

  13. INSPECT AND ADJUST FRONT WHEEL ALIGNMENT 

    Refer to ADJUSTMENT [09/2023 - ]

  14. FULLY TIGHTEN TIE ROD ASSEMBLY LH 
    1. GTY1202786Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Torque Wrench Fulcrum Length - -
      1. Using SST, tighten the tie rod assembly LH lock nuts.
        • SST: 09922-10240 

        Specified Tightening Torque 

        Torque: 88 N.m (897 kgf/cm, 65 ft.lbf) 

        HINT: 

        • Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.

          Refer to PRECAUTION [09/2023 - ]

        • When using SST (fulcrum length of 40 mm (1.57 in.)) + torque wrench (fulcrum length of 255 mm (10.04 in.)): 76.1 N.m (776 kgf/cm, 56 ft.lbf)
  15. FULLY TIGHTEN TIE ROD ASSEMBLY RH 
  16. UPDATE ECU SECURITY KEY 
    1. If the rack and pinion power steering gear assembly has been replaced, perform Update ECU security key.

      Refer to UPDATE ECU SECURITY KEY [09/2023 - ]

  17. ECU CONFIGURATION 
    1. If the rack and pinion power steering gear assembly has been replaced, perform ECU configuration.

      Refer to ECU CONFIGURATION [09/2023 - ]

  18. POWER STEERING ECU INITIAL SETTING 

    Refer to POWER STEERING ECU INITIAL SETTING [09/2023 - ]