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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Drivelines & Axles >> Differentials & Drive Axles >> Axle And Differential - Service Information (1 Of 2) >> Front Axle Hub >> On-Vehicle Inspection [11/2023 - ] >> Procedure

On-Vehicle Inspection [11/2023 - ]: Procedure

  1. DISABLE BRAKE CONTROL (for HV Model) 

    Refer to PROCEDURE - Step 1

  2. REMOVE FRONT WHEEL 

    Refer to PROCEDURE - Step 1

  3. SEPARATE FRONT FLEXIBLE HOSE 

    See step  3

  4. SEPARATE FRONT DISC BRAKE CALIPER ASSEMBLY 

    See step  4

  5. REMOVE FRONT DISC 

    Refer to PROCEDURE - Step 12

  6. INSPECT FRONT AXLE HUB BEARING LOOSENESS 
    1. Using a dial indicator with magnetic base, check for looseness near the center of the front axle hub sub-assembly.
      GTY912924Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Maximum Looseness

      0.05 mm (0.00196 in.)

      NOTE:
      • Ensure that the dial indicator is set perpendicular to the measurement surface.
      • Keep the magnet of the dial indicator away from the front axle hub sub-assembly and front speed sensor.

      HINT: 

      If the looseness exceeds the maximum, replace the front axle hub sub-assembly.

  7. INSPECT FRONT AXLE HUB RUNOUT 
    1. Using a dial indicator with magnetic base, check for runout on the surface of the front axle hub sub-assembly outside the front axle hub bolts.
      GTY911906Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Maximum Runout

      0.05 mm (0.00196 in.)

      NOTE:
      • Ensure that the dial indicator is set perpendicular to the measurement surface.
      • Make sure to set the tip of the dial indicator towards the outside of the front axle hub bolts.
      • Keep the magnet of the dial indicator away from the front axle hub sub-assembly and front speed sensor.

      HINT: 

      If the runout exceeds the maximum, replace the front axle hub sub-assembly.

  8. INSTALL FRONT DISC 

    Refer to PROCEDURE - Step 1

  9. INSTALL FRONT DISC BRAKE CALIPER ASSEMBLY 

    See step  9

  10. INSTALL FRONT FLEXIBLE HOSE 

    See step  10

  11. INSTALL FRONT WHEEL 

    Refer to PROCEDURE - Step 1

  12. CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL (for HV Model) 
    1. Connect the reservoir level switch connector.
    2. Install the brake master cylinder reservoir assembly to the reservoir bracket with the bolt and nut.

      Torque: 9.0 N.m (92 kgf/cm, 80 in.lbf) 

    3. Engage the clamp to install the wire harness to the brake master cylinder reservoir assembly.
    4. Connect the cable to the negative (-) auxiliary battery terminal.

      Refer to PROCEDURE - Step 2

    5. Turn the ignition switch to ON (READY).
    6. Depress the brake pedal and release it.
    7. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [12/2019 - ]

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