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Home >> Lexus >> 2020 >> LS 500h AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> Monitor System - Service Information (1 Of 3) >> ULTRASONIC SENSOR (for Rear) >> Removal [10/2017 - 09/2018] >> Procedure

Removal [10/2017 - 09/2018]: Procedure

  1. PRECAUTION (w/ Hands Free Power Trunk Lid) 
    NOTE:

    After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

    Refer to PRECAUTION [10/2017 - 09/2019]

  2. REMOVE LUGGAGE COMPARTMENT MAT SUB-ASSEMBLY (w/ Hands Free Power Trunk Lid) 

    Refer to PROCEDURE - Step 24

  3. DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL (w/ Hands Free Power Trunk Lid) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.

      Refer to PROCEDURE - Step 3

      NOTE:

      When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

      Refer to INITIALIZATION [10/2017 - 09/2018]

  4. REMOVE REAR BUMPER ASSEMBLY 

    Refer to REMOVAL [10/2017 - 09/2018]

  5. REMOVE NO. 3 LUGGAGE ROOM WIRE 

    Refer to PROCEDURE - Step 2

  6. REMOVE REAR CORNER ULTRASONIC SENSOR 
    1. Detach the claw and remove the rear corner ultrasonic sensor.
      NOTE:

      Before removing the sensor, make sure to mark the sensor and rear bumper assembly so that each sensor can be returned to its original position.

      GTY833962Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE REAR CORNER ULTRASONIC SENSOR RETAINER 

    HINT: 

    When removing the rear corner ultrasonic sensor retainer, heat the rear bumper assembly and rear corner ultrasonic sensor retainer using a heat light.

    1. Heat the rear bumper assembly and rear corner ultrasonic sensor retainer using a heat light.
      WARNING:
      • Do not touch the heat light and heated parts.
      • Touching the heat light may result in burns.
      • Touching heated parts for a long time may result in burns.
      GTY835518Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Heated Part
      *b Heat Light

      Standard

      Item Temperature
      Rear Bumper Assembly 20 to 30°C (68 to 86°F)
      Rear Corner Ultrasonic Sensor Retainer
    2. Remove the rear corner ultrasonic sensor retainer.
      GTY805661Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE ULTRASONIC SENSOR CLIP 

    HINT: 

    Use the same procedure for the other ultrasonic sensor clip.

    GTY805688Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Detach the claw and remove the ultrasonic sensor clip.
  9. REMOVE REAR CENTER ULTRASONIC SENSOR 

    HINT: 

    Use the same procedure described for the rear corner ultrasonic sensor.

  10. REMOVE REAR CENTER ULTRASONIC SENSOR RETAINER 

    HINT: 

    Use the same procedure described for the rear corner ultrasonic sensor retainer.

  11. REMOVE REAR ULTRASONIC SENSOR CLIP 

    HINT: 

    • Use the same procedure for the other rear ultrasonic sensor clip.
    • When removing the rear ultrasonic sensor clip, heat the rear bumper assembly and rear ultrasonic sensor clip using a heat light.
    1. Heat the rear bumper assembly and rear ultrasonic sensor clip using a heat light.
      WARNING:
      • Do not touch the heat light and heated parts.
      • Touching the heat light may result in burns.
      • Touching heated parts for a long time may result in burns.
      GTY835518Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Heated Part
      *b Heat Light

      Standard

      Item Temperature
      Rear Bumper Assembly 20 to 30°C (68 to 86°F)
      Rear Ultrasonic Sensor Clip
    2. Remove the rear ultrasonic sensor clip.
      GTY805685Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. REMOVE ULTRASONIC SENSOR CUSHION SET 

    HINT: 

    Only perform this procedure when removing and installing the ultrasonic sensor cushion set.

    1. Remove the ultrasonic sensor cushion set as shown in the illustration.
      GTY866906Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction - -
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