TOYOTA PARKING ASSIST-SENSOR SYSTEM


  1. OPERATION


    1. Depending on the detection distance and the detection area, the sound pattern of the No. 1 clearance warning buzzer will vary.

      Detection Area

      Detection Distance

      (mm (in.))

      		 Buzzer Sound Pattern

      On

      (msec.)

      Off

      (msec.)
      Front Corner Long 600+/-60 to 450+/-50 (23.6+/-2.4 to 17.7+/-2.0) 200 200
      Middle 450+/-50 to 300+/-30 (17.7+/-2.0 to 11.8+/-1.2) 100 100
      Short 300+/-30 or less (11.8+/-1.2 or less) Continuous Sound 0
      Rear Corner Long 600+/-60 to 450+/-50 (23.6+/-2.4 to 17.7+/-2.0) 200 200
      Middle 450+/-50 to 300+/-30 (17.7+/-2.0 to 11.8+/-1.2) 100 100
      Short 300+/-30 or less (11.8+/-1.2 or less) Continuous Sound 0
      Rear Center Longest 1500+/-150 to 600+/-60 (59.1+/-5.9 to 23.6 +/-2.4) 200 500
      Long 600+/-60 to 450+/-50 (23.6+/-2.4 to 17.7 +/-2.0) 200 200
      Middle 450+/-50 to 350+/-40 (17.7+/-2.0 to 13.8+/-1.6) 100 100
      Short 350+/-40 or less (13.8+/-1.6 or less) Continuous Sound 0

    2. When a sensor malfunction is detected or a sensor is frozen or dirty, the buzzer sounds 5 times according to the following timing:

      A01MA5QE06

    3. The ultrasonic sensors are divided into 2 groups: a front section group (front corners) and a rear section group (rear corners and rear center). If multiple ultrasonic sensors detect obstructions at the same time, the No. 1 clearance warning buzzer sounds as follows, in accordance with the detection distance and detection area of each group:

      Buzzer Sound Pattern ON/OFF Time (msec.)
      Detection Distance Short (*B) Middle (*B) Long (*B) Longest (*B) Not detected
      Short (*A) Timing 1 Timing 2 Timing 2 Timing 2 Continuous Sound
      Middle (*A) Timing 2 100/100 100/100 100/100 100/100
      Long (*A) Timing 2 100/100 200/200 200/200 200/200
      Not detected Continuous Sound 100/100 200/200 200/500 None

      *A: Front section

      *B: Rear section

      A01MA55E01

    4. Clearance Warning Buzzer Mute Function


      1. The buzzer can be temporarily muted using the buzzer mute switch in the radio and display receiver assembly.

      2. The mute function is canceled if the vehicle speed reaches a certain level.

        A01MAAEC01
        *a Buzzer Mute Switch - -