TOYOTA PARKING ASSIST-SENSOR SYSTEM(except Hatchback) OPERATION CHECK


  1. MALFUNCTION DISPLAY (MULTI-INFORMATION DISPLAY)


    1. Open circuit indication


      1. If there is an open circuit between the ultrasonic sensor and the clearance warning ECU assembly or a sensor is malfunctioning, the malfunction is displayed as shown in the illustration.

        A01KS8SE02

        Tech Tips


        • When a malfunction is detected, bars for all detection areas shown in the illustration blink.

        • If a sensor has an open circuit, check for DTCs and troubleshoot according to each inspection procedure.

          Click here

  2. MALFUNCTION DISPLAY (MULTI-DISPLAY)


    1. Open circuit indication


      1. If there is an open circuit between the ultrasonic sensor and the clearance warning ECU assembly or a sensor is malfunctioning, the malfunction is displayed as shown in the illustration.

        A01KTBXC01
        *a Other than park (P) or reverse (R) selected *b Reverse (R) selected

        Tech Tips


        • When a malfunction is detected, bars for all detection areas shown in the illustration blink.

        • If a sensor has an open circuit, check for DTCs and troubleshoot according to each inspection procedure.

          Click here

  3. DETECTION RANGE MEASUREMENT AND DISPLAY INSPECTION

    Note

    Perfrom the following measurement and inspection with a shift state other than park (P) selected. Be sure to apply the parking brake and depress the brake pedal firmly to prevent the vehicle from moving.


    1. Turn the power switch on (IG).

    2. Turn the TOYOTA park assist-sensor system on.

    3. Detection range measurement:


      1. When measuring the detection range of the front sonar, move the shift lever to select a shift state other than park (P).

      2. When measuring the detection range of the rear sonar, move the shift lever to reverse (R).

      3. Move a 60 mm (2.36 in.) diameter pole near each sensor to measure its detection range.

        Note

        These detection ranges are applicable when positioning the 60 mm (2.36 in.) diameter pole parallel or perpendicular to the ground. The detection range varies depending on the measuring method and type of obstacle (such as walls).

        Tech Tips

        Have an assistant move the pole.

        Figure 1. Corner Sonar

        A01KTL2C01
        *a Approx. 500 mm (19.7 in.) *b Approx. 650 mm (25.6 in.)
        *c Approx. 550 mm (21.7 in.) *d Approx. 100 mm (3.9 in.)
        *e A *f B

        Note

        The ultrasonic sensor side view detection range (hatched area labeled (B)) represents the cross section of the top view detection range (A). The hatched area (A) does not represent the entire side view detection range.

        Figure 2. Center Sonar

        A01KSG3C01
        *a Approx. 1000 mm (39.4 in.) *b Approx. 1500 mm (59.1 in.)
        *c Approx. 650 mm (25.6 in.) *d Approx. 100 mm (3.9 in.)
        *e Wall - -

        Figure 3. Front Side Sonar

        A01KSKLC01
        *a Approx. 250 mm (9.8 in.) *b Approx. 400 mm (15.7 in.)
        *c Approx. 100 mm (3.9 in.) - -

    4. Front side sonar display and buzzer operation check


      1. When the No. 2 ultrasonic sensors (front side LH/RH) have detected an obstacle, check the displays and check that the No. 1 clearance warning buzzer sounds.

        Operation Condition
        Power Switch TOYOTA Parking Assist-sensor System Shift State Vehicle Speed
        On (IG) On Other than park (P) or reverse (R) Less than 10 km/h (6 mph)
        On (IG) On Reverse (R) -
        A01KRVFC01
        *a Multi-information Display *b Multi-display
        *c Example (Front Side Sonar) *d Close-range Detection
        *e Other than park (P) or reverse (R) selected *f Reverse (R) selected
        A01KTGRE04

        Tech Tips

        Ultrasonic waves are used to measure the detection range; however, the detection range may vary depending on the ambient temperature.

      2. Front corner sonar display and buzzer operation check


        1. When the No. 1 ultrasonic sensors (front corner LH/RH) have detected an obstacle, check the displays and check that the No. 1 clearance warning buzzer sounds.

        3. Operation Condition
        Power Switch TOYOTA Parking Assist-sensor System Shift State Vehicle Speed
        On (IG) On Other than park (P) or reverse (R) Less than 10 km/h (6 mph)
        On (IG) On Reverse (R) -
        A01KSWUC01
        *a Multi-information Display *b Multi-display
        *c Example (Front Corner Sonar) *d Close-range Detection
        *e Medium-range Detection *f Long-range Detection
        *g Other than park (P) or reverse (R) selected *h Reverse (R) selected
        A01KTGRE04

        Tech Tips

        Ultrasonic waves are used to measure the detection range; however, the detection range may vary depending on the ambient temperature.

      3. Front center sonar display and buzzer operation check


        1. When the No. 1 ultrasonic sensors (front center LH/RH) have detected an obstacle, check the display and check that the No. 1 clearance warning buzzer sounds.

        4. Operation Condition
        Power Switch TOYOTA Parking Assist-sensor System Shift State Vehicle Speed
        On (IG) On Other than park (P) or reverse (R) Less than 10 km/h (6 mph)
        On (IG) On Reverse (R) -
      A01KTATC01
      *a Multi-information Display *b Multi-display
      *c Example (Front Center Sonar) *d Close-range Detection
      *e Medium-range Detection *f Long-range Detection
      *g Longest-range Detection - -
      A01KTLNE02

      Tech Tips

      Ultrasonic waves are used to measure the detection range; however, the detection range may vary depending on the ambient temperature.


      • *1: While the simple intelligent parking assist system is not operating

      • *2: While the simple intelligent parking assist system is operating

    5. Rear corner sonar display and buzzer operation check


      1. When the No. 1 ultrasonic sensors (rear corner LH/RH) have detected an obstacle, check the display and check that the No. 2 clearance warning buzzer sounds.

      6. Operation Condition
      Power Switch TOYOTA Parking Assist-sensor System Shift State Vehicle Speed
      On (IG) On Reverse (R) -
    A01KRKVC01
    *a Multi-information Display *b Multi-display
    *c Example (Rear Corner Sonar) *d Close-range Detection
    *e Medium-range Detection *f Long-range Detection
    A01KTGRE04

    Tech Tips

    Ultrasonic waves are used to measure the detection range; however, the detection range may vary depending on the ambient temperature.

  4. Rear center sonar display and buzzer operation check


    1. When the No. 3 ultrasonic sensors (rear center LH/RH) have detected an obstacle, check the display and check that the No. 2 clearance warning buzzer sounds.

    5. Operation Condition
    Power Switch TOYOTA Parking Assist-sensor System Shift State Vehicle Speed
    On (IG) On Reverse (R) -
A01KTV8C01
*a Multi-information Display *b Multi-display
*c Example (Rear Center Sonar) *d Close-range Detection
*e Medium-range Detection *f Long-range Detection
*g Longest-range Detection - -
A01KTLNE02

Tech Tips

Ultrasonic waves are used to measure the detection range; however, the detection range may vary depending on the ambient temperature.