LS400 1990-1997

Lower Ball Joints

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Removal & Installation



  1. Remove front wheel.
  2.  
  3. Remove front brake caliper
    1. Remove the 2 bolts and brake caliper.
    2.  
    3. Support the brake caliper securely.
    4.  

  4.  
  5. Disconnect abs speed sensor and wire harness
    1. Remove the 2 bolts, ABS speed sensor and wire harness.
      NOTE
      When removing them from right side do not disconnect the pad wear indicator connector.

    2.  

  6.  
  7. Disconnect tie rod end from lower ball joint
    1. Remove the clip and nut from the tie rod end.
    2.  
    3. Using SST (SST 09610-20012), disconnect the tie rod end from the steering knuckle.
    4.  

  8.  
  9. Disconnect lower ball joint from lower suspension arm
    1. Remove the cotter pin and nut from the lower ball joint. Tighten nut to 112 ft. lbs. (152 Nm).
    2.  
    3. Using SST (SST 09628-62011), remove the lower ball joint from the lower suspension arm.
    4.  

  10.  
  11. Remove lower ball joint from steering knuckle
    1. Remove the 2 bolts and lower ball joint.

      Click image to see an enlarged view

      Fig. Front lower ball joint components

    2.  

  12.  

To install:

  1. Install lower ball joint from steering knuckle
    1. Install the 2 bolts and lower ball joint. Tighten the bolts to 83 ft. lbs. (113 Nm).
    2.  

  2.  
  3. Connect lower ball joint from lower suspension arm
    1. Using SST (SST 09628-62011), install the lower ball joint to the lower suspension arm.
    2.  
    3. Install the cotter pin and nut to the lower ball joint. Tighten nut to 112 ft. lbs. (152 Nm).
    4.  

  4.  
  5. Connect tie rod end from lower ball joint
    1. Using SST (SST 09610-20012), connect the tie rod end to the steering knuckle.
    2.  
    3. Install the clip and nut to the tie rod end. Tighten nut to 43 ft. lbs. (59 Nm).
    4.  

  6.  
  7. Connect abs speed sensor and wire harness
    1. Install the 2 bolts, ABS speed sensor and wire harness. Tighten bolts to 69 inch lbs. (7.8 Nm).
    2.  

  8.  
  9. Install front brake caliper
    1. Support the brake caliper securely.
    2.  
    3. Install the 2 bolts and brake caliper. Tighten bolts to 87 ft. lbs. (118 Nm).
    4.  

  10.  
  11. Install front wheel. Tighten the wheel to 76 ft. lbs. (103 Nm).
  12.  
  13. After installation, check ABS speed sensor signal and front wheel alignment.
  14.  

ABS Speed Sensor Signal Check
  1. Sensor signal check (test mode)
    NOTE
    If the ignition switch is turned from ON to ACC or LOCK during test mode, DTC will be erased.

    1. In case of not using LEXUS hand-held tester: Check the sensor signal.
      NOTE
      If the ABS warning light does not blink, inspect the ABS warning light circuit and Ts terminal circuit.


      NOTE
      The above mentioned condition comes into existence, the ABS warning light comes ON for 3 seconds.


      NOTE
      There is a case that the sensor check is not completed if the vehicle has its rear wheels spun or its steering wheel steered during this check.


      NOTE
      See the list of DTC at the bottom of this page.


      NOTE
      If every sensor is normal, a normal code is output (A cycle of 0.25 sec. ON and 0.25 sec. OFF is repeated).


      NOTE
      If 2 or more malfunction are indicated at the same time, the lowest numbered code will be displayed 1st.



      Turn the ignition switch OFF.
       
      Using SST (SST 09843 - 18020), connect terminals Ts and E1 of DLC1.
       
      Start the engine.
       
      Check that the ABS warning light blinks.
       



      Keep the vehicle in the stationary condition on the flat place for 1 sec. or more.
       
      Leaving the vehicle in the stationary condition and the brake pedal in free condition for 1 sec. or more, continue to depress the brake pedal with 33 lbf (147 N) or more for 1 sec. or more.
       
      Leaving the vehicle in the stationary condition, depress the brake pedal with 22 lbf (98 N) or more quickly.
       



      Drive vehicle straight forward. When driving the vehicle with the speed faster than 45 km/h (28 mph) for serveral seconds, check that the ABS warning light comes off.
       



      Stop the vehicle.
       
      Using SST (SST 09843 - 18020), connect terminals Tc and E1 of DLC1.
       
      Read the number of blinks of the ABS warning light.
       



      After doing the check, disconnect terminals Ts and E1, Tc and E1 of DLC1, and ignition switch turned OFF.
       

    2.  
    3. In case of using LEXUS hand-held tester:Check the sensor signal.

      Hook up the LEXUS hand-held tester to the DLC3.
       
      Do step (3) - (9) on the previous page.
       
      Read the DTC by following the prompts on the tester screen.
       

    4.  

  2.  

 
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