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Home >> Toyota >> 2021 >> Avalon TRD >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Parking Assist Monitor System (Service Information) >> ULTRASONIC SENSOR (for Rear) >> Removal [04/2018 - ] >> Procedure

Removal [04/2018 - ]: Procedure

  1. REMOVE REAR BUMPER ASSEMBLY 

    Refer to REMOVAL [04/2018 - ]

  2. REMOVE REAR CENTER ULTRASONIC SENSOR 

    HINT: 

    • Use the same procedure for the RH side and LH side.
    • The following procedure is for the LH side.
    1. Disconnect the connector.
      GTY844339Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction
    2. Disengage the 4 claws as shown in the illustration.
    3. Disengage the 2 claws and remove the rear center ultrasonic sensor as shown in the illustration.
      GTY933482Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction
  3. REMOVE REAR CORNER ULTRASONIC SENSOR 

    HINT: 

    • Use the same procedure for the RH side and LH side.
    • The following procedure is for the LH side.
    1. Disconnect the connector.
      GTY919711Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the 2 claws and remove the rear corner ultrasonic sensor as shown in the illustration.
      GTY895899Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction
  4. REMOVE ULTRASONIC SENSOR CLIP 

    HINT: 

    • Perform this procedure only when replacement of the ultrasonic sensor clip is necessary.
    • Use the same procedure for all ultrasonic sensor clips.
    1. Disengage the clamp to remove the ultrasonic sensor clip from the wire.
      GTY919712Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. REMOVE REAR CENTER ULTRASONIC SENSOR RETAINER 

    HINT: 

    • Perform this procedure only when replacement of the rear center ultrasonic sensor retainer is necessary.
    • When removing the rear center ultrasonic sensor retainer, heat the rear bumper assembly and rear center ultrasonic sensor retainer using a heat light.
    • Use the same procedure for the RH side and LH side.
    • The following procedure is for the LH side.
    1. Heat the rear bumper assembly and rear center ultrasonic sensor retainer using a heat light at the specified temperature for 3 to 5 minutes.

      Heating Temperature

      Item Temperature
      Rear Bumper Assembly 40 to 60°C (104 to 140°F)
      Rear Center Ultrasonic Sensor Retainer
      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.
      GTY583249Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Heated Part
      *b Heat Light
    2. Remove the rear center ultrasonic sensor retainer.
      GTY944167Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. REMOVE REAR CORNER ULTRASONIC SENSOR RETAINER 

    HINT: 

    • Perform this procedure only when replacement of the rear corner ultrasonic sensor retainer is necessary.
    • When removing the rear corner ultrasonic sensor retainer, heat the rear bumper assembly and rear corner ultrasonic sensor retainer using a heat light.
    • Use the same procedure for the RH side and LH side.
    • The following procedure is for the LH side.
    1. Heat the rear bumper assembly and rear corner ultrasonic sensor retainer using a heat light at the specified temperature for 3 to 5 minutes.

      Heating Temperature

      Item Temperature
      Rear Bumper Assembly 40 to 60°C (104 to 140°F)
      Rear Corner Ultrasonic Sensor Retainer
      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.
      GTY583249Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Heated Part
      *b Heat Light
    2. Remove the rear corner ultrasonic sensor retainer.
      GTY919730Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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