2009 Lexus LS 460L AWDFACTORY OEM SERVICE PROCEDURE

Yaw Rate And Acceleration Sensor: Installation

NOTE: While the battery is connected, even if the engine switch is off, the brake control system activates when the brake pedal is depressed or the door courtesy switch turns on. Therefore during servicing of the brake system components, do not operate the brake pedal and open/close the doors while the battery is connected.
  1. INSTALL YAW RATE SENSOR 
    1. Connect the sensor connector.
    2. Install the sensor with the 2 bolts.

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

      NOTE:
      • Make sure the yaw rate sensor's identification number is 1.
      • Do not drop the yaw rate sensor. If it is dropped, do not use it.
      • Do not mistaken the installation direction of the yaw rate sensor.
      • When installing the yaw rate sensor, make sure to avoid impact to the sensor.
      • After the installation, check that the yaw rate sensor is not tilted due to the floor carpet or any foreign matter.
        Fig 1: Locating Yaw Rate Sensor Bolts With Identification Number
        G04949777Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSTALL NO. 1 CONSOLE BOX DUCT 
    1. Install the No. 1 duct with the 2 clips (labeled A).
    2. Attach the connector clamp (labeled B).
      3. Fig 2: Locating No. 1 Duct With Clips And Connector Clamp
      G04949779Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSTALL CONSOLE BOX ASSEMBLY  (See INSTALLATION )
  4. INSTALL CONSOLE COVER LOWER  (See INSTALLATION )
  5. INSTALL REAR CONSOLE END PANEL SUB-ASSEMBLY  (See INSTALLATION )
  6. INSTALL CONSOLE PANEL SUB-ASSEMBLY UPPER  (See INSTALLATION )
  7. INSTALL REAR CONSOLE PANEL UPPER  (See INSTALLATION )
  8. INSTALL NO. 3 BOX PANEL  (See INSTALLATION )
  9. INSTALL SHIFT LEVER KNOB SUB-ASSEMBLY  (See INSTALLATION )
  10. INSTALL INSTRUMENT PANEL FINISH PANEL END RH  (See INSTALLATION )
  11. INSTALL INSTRUMENT PANEL FINISH PANEL END LH  (See INSTALLATION )
  12. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL 
    NOTE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See INITIALIZATION ).
  13. INSTALL COWL TOP VENTILATOR LOUVER RH  (See INSTALLATION )
  14. PERFORM YAW RATE SENSOR ZERO POINT CALIBRATION 
    1. Perform the yaw rate sensor zero point calibration (See CALIBRATION  ).
  15. CHECK YAW RATE SENSOR SIGNAL 
    1. Check the yaw rate sensor signal (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.