2008 Lexus IS FFACTORY OEM SERVICE PROCEDURE

Front Speed Sensor: Installation

  1. INSTALL FRONT SPEED SENSOR 
    1. Wipe off sealant attached to the front speed sensor's fitting surface with a non-residue solvent.
      NOTE: Prevent foreign matter from attaching to the sensor rotor.
    2. Install a new front speed sensor to the hub and bearing assembly The front speed sensor connector should be positioned upward
      Fig 1: Identifying Front Speed Sensor Connector Should Be Positioned Upward
      G05752700Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Using SST and a press, install the front speed sensor onto the front axle hub and bearing

      SST 09214-76011 

      NOTE:
      • Keep the front speed sensor away from magnets.
      • Do not use a hammer on the front speed sensor.
      • Check that there is no foreign matter such as iron chips on the front speed sensor's detecting portion.
      • Slowly press the front speed sensor straight.
        Fig 2: Identifying Skid Control Sensor
        G05297165Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSTALL FRONT AXLE HUB SUB-ASSEMBLY WITH FRONT SPEED SENSOR  (See INSTALLATION )
  3. INSPECT FRONT AXLE HUB BEARING FOR LOOSENESS  (See ON-VEHICLE INSPECTION )
  4. INSPECT FRONT AXLE HUB FOR RUNOUT  (See ON-VEHICLE INSPECTION )
  5. INSTALL FRONT DISC  (See INSTALLATION )
  6. INSTALL FRONT DISC BRAKE CYLINDER ASSEMBLY  (See INSTALLATION )
  7. CONNECT FRONT SPEED SENSOR WIRE 
    1. Connect the front speed sensor wire to the front speed sensor.
      NOTE: Do not twist the sensor wire.
  8. INSTALL FRONT WHEEL 

    Torque: 103 N*m (1050 kgf*cm, 76 ft.*lbf) 

    Fig 3: Connecting Front Speed Sensor Wire To Front Speed Sensor
    G05297166Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL 
    NOTE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See INITIALIZATION ).
  10. CHECK FOR SPEED SENSOR SIGNAL 

    HINT.

    (See TEST MODE PROCEDURE  )

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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