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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 Front) >> Removal [10/2023 - ] >> Procedure

Removal [10/2023 - ]: Procedure

  1. REMOVE FRONT BUMPER ASSEMBLY 

    Refer to REMOVAL [10/2023 - ]

  2. REMOVE NO. 4 ENGINE ROOM WIRE 

    Refer to PROCEDURE - Step 14

  3. REMOVE FRONT SIDE ULTRASONIC SENSOR 
    1. Detach the claw and remove the front side ultrasonic sensor.
      GTY967587Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

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

  4. REMOVE FRONT SIDE ULTRASONIC SENSOR RETAINER 

    HINT: 

    • Perform the following procedure only when replacement of a front side ultrasonic sensor retainer is necessary.
    • When removing the front side ultrasonic sensor retainer, if the double-sided tape is difficult to remove, heat the adhesive of the front side ultrasonic sensor retainer and front bumper assembly using a heat light.
    1. Heat the front bumper assembly and front side ultrasonic sensor retainer using a heat light.
      WARNING:
      GTY812853Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Heated Part
      *b Heat Light
      • 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.

      Standard

      Item Temperature
      Front Bumper Assembly 20 to 30°C (68 to 86°F)
      Front Side Ultrasonic Sensor Retainer
    2. Remove the front side ultrasonic sensor retainer.
      GTY966367Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. REMOVE NO. 2 ULTRASONIC SENSOR CLIP 
    1. Detach the claw and remove the No. 2 ultrasonic sensor clip.
      GTY966431Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. REMOVE FRONT CORNER ULTRASONIC SENSOR 
    1. Detach the claw and remove the front corner ultrasonic sensor.
      GTY967584Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

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

  7. REMOVE FRONT CORNER ULTRASONIC SENSOR RETAINER 

    HINT: 

    • Perform the following procedure only when replacement of a front corner ultrasonic sensor retainer is necessary.
    • When removing the front corner ultrasonic sensor retainer, if the double-sided tape is difficult to remove, heat the adhesive of the front corner ultrasonic sensor retainer and front bumper assembly using a heat light.
    1. Heat the front bumper assembly and front corner ultrasonic sensor retainer using a heat light.
      WARNING:
      GTY812853Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Heated Part
      *b Heat Light
      • 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.

      Standard

      Item Temperature
      Front Bumper Assembly 20 to 30°C (68 to 86°F)
      Front Corner Ultrasonic Sensor Retainer
    2. Remove the front corner ultrasonic sensor retainer.
      GTY966377Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE FRONT CENTER ULTRASONIC SENSOR 
    1. Detach the claw and remove the front center ultrasonic sensor.
      GTY966429Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

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

  9. REMOVE FRONT ULTRASONIC SENSOR CLIP 

    HINT: 

    • Perform the following procedure only when replacement of a front ultrasonic sensor clip is necessary.
    • When removing the front ultrasonic sensor clip, if the double-sided tape is difficult to remove, heat the adhesive of the front ultrasonic sensor clip and front bumper assembly using a heat light.
    1. w/ Headlight Cleaner System:
      GTY966866Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Detach the washer hose clamp.

        HINT: 

        Use the same procedure for the other side.

    2. Heat the front bumper assembly and front 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
    3. Remove the front ultrasonic sensor clip.
      GTY966354Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE FRONT NO. 2 ULTRASONIC SENSOR CLIP 

    HINT: 

    • Perform the following procedure only when replacement of a front No. 2 ultrasonic sensor clip is necessary.
    • When removing the front No. 2 ultrasonic sensor clip, if the double-sided tape is difficult to remove, heat the adhesive of the front No. 2 ultrasonic sensor clip and front bumper assembly using a heat light.
    1. Heat the front bumper assembly and front No. 2 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
      Front Bumper Assembly 20 to 30°C (68 to 86°F)
      Front No. 2 Ultrasonic Sensor Clip
    2. Remove the front No. 2 ultrasonic sensor clip.
      GTY966356Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. 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.
      GTY1085146Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction - -
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