TOYOTA PARKING ASSIST-SENSOR SYSTEM(for Sedan without Simple Intelligent Parking Assist System) 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.

        E346334E01
        Tip:

        • 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.

        E346535C01

        *A

        w/o DVD player

        *B

        w/ DVD player

        *a

        When the shift lever is not in R*1

        When the shift lever is not in P or R*2

        *b

        When the shift lever is in R

        • *1: for EC60, EC61, EC65A or EC69

        • *2: for K313

        Tip:

        • 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:

    While performing the following measurement and inspection, make sure to depress the brake pedal to prevent the vehicle from moving. (The parking brake should be released.) (for EA66, EC60, EC61, EC6A, or EC69)

    The following measurement and inspection will be performed with the shift lever in a position other than P. Be sure to apply the parking brake and depress the brake pedal firmly to prevent the vehicle from moving. (for K313)

    1. Turn the ignition switch to ON.

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

    3. Detection range measurement:

      1. When measuring the detection range of the front sonar, move the shift lever to any position other than P. (for K313)

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

        Tip:

        Have an assistant move the pole.

        Figure 1. Corner Sonar
        E346342C01

        *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
        E346343C01

        *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

        -

        -

    4. Front corner sonar display and buzzer operation check

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

        Table 1. Operation Condition

        Ignition Switch

        TOYOTA Parking Assist-sensor System

        Shift Lever Position

        Vehicle Speed

        Parking Brake

        ON

        On

        When the shift lever is not in R*1

        When the shift lever is not in P or R*2

        Less than 10 km/h (6 mph)

        Released*1

        ON

        On

        R

        -

        -

        • *1: for EC60, EC61, EC65A or EC69

        • *2: for K311 or K313

        E346529C01

        *A

        w/o DVD player

        *B

        w/o DVD player

        *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

        When the shift lever is not in R*1

        When the shift lever is not in P or R*2

        *h

        When the shift lever is in R

        • *1: for EC60, EC61, EC65A or EC69

        • *2: for K311 or K313

        E275507E15

        Standard

        Table 2. Multi-information Display and Buzzer

        Detection Range

        During Judgment

        Obstacle

        Close-range detection

        Within approx. 250 +/- 25 mm (9.8 +/- 1.0 in.)

        Buzzer: Sounds continuously

        Number of bars displayed: 1 (blinking)

        60 mm (2.36 in.) diameter pole

        Medium-range detection

        From approx. 250 +/- 25 to 375 +/- 37.5 mm (9.8 +/- 1.0 to 14.8 +/- 1.5 in.)

        Buzzer: Sounds intermittently (ON: 0.075 sec. / OFF: 0.075 sec.)

        Number of bars displayed: 2 (illuminated)

        60 mm (2.36 in.) diameter pole

        Long-range detection

        From approx. 375 +/- 37.5 to 500 +/- 50 mm (14.8 +/- 1.5 to 19.7 +/- 2.0 in.)

        Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.15 sec.)

        Number of bars displayed: 3 (illuminated)

        60 mm (2.36 in.) diameter pole
        Table 3. Multi-display and Buzzer

        Detection Range

        During Judgment

        Obstacle

        Close-range detection

        Within approx. 250 +/- 25 mm (9.8 +/- 1.0 in.)

        Buzzer: Sounds continuously

        Number of bars displayed: 1 (blinking)

        60 mm (2.36 in.) diameter pole

        Medium-range detection

        From approx. 250 +/- 25 to 375 +/- 37.5 mm (9.8 +/- 1.0 to 14.8 +/- 1.5 in.)

        Buzzer: Sounds intermittently (ON: 0.075 s. / OFF: 0.075 s.)

        Number of bars displayed: 2 (illuminated)

        60 mm (2.36 in.) diameter pole

        Long-range detection

        From approx. 375 +/- 37.5 to 500 +/- 50 mm (14.8 +/- 1.5 to 19.7 +/- 2.0 in.)

        Buzzer: Sounds intermittently (ON: 0.15 s. / OFF: 0.15 s.)

        Number of bars displayed: 3 (illuminated)

        60 mm (2.36 in.) diameter pole
        Tip:

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

    5. Front center sonar display and buzzer operation check

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

        Table 4. Operation Condition

        Ignition Switch

        TOYOTA Parking Assist-sensor System

        Shift Lever Position

        Vehicle Speed

        Parking Brake

        ON

        On

        When the shift lever is not in R*1

        When the shift lever is not in P or R*2

        Less than 10 km/h (6 mph)

        Released*1

        ON

        On

        R

        -

        -

        • *1: for EC60, EC61, EC65A or EC69

        • *2: for K311 or K313

        E346530C03

        *A

        w/o DVD player

        *B

        w/ DVD player

        *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

        -

        -
        E275466E11

        Standard

        Table 5. Multi-information Display and Buzzer

        Detection Range

        During Detection

        Obstacle

        Close-range detection

        Within approx. 300 +/- 30 mm (11.8 +/- 1.2 in.)

        Buzzer: Sounds continuously

        Number of bars displayed: 1 (blinking)

        60 mm (2.36 in.) diameter pole

        Medium-range detection

        From approx. 300 +/- 30 to 425 +/- 42.5 mm (11.8 +/- 1.2 to 16.7 +/- 1.7 in.)

        Buzzer: Sounds intermittently (ON: 0.075 sec. / OFF: 0.075 sec.)

        Number of bars displayed: 2 (illuminated)

        60 mm (2.36 in.) diameter pole

        Long-range detection

        From approx. 425 +/- 42.5 to 550 +/- 55 mm (16.7 +/- 1.7 to 21.7 +/- 2.2 in.)

        Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.15 sec.)

        Number of bars displayed: 3 (illuminated)

        60 mm (2.36 in.) diameter pole

        Longest-range detection

        From approx. 550 +/- 55 to 1000 +/- 100 mm (21.7 +/- 2.2 to 39.4 +/- 3.9 in.)

        Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.65 sec.)

        Number of bars displayed: 4 (illuminated)

        Wall
        Table 6. Multi-display and Buzzer

        Detection Range

        During Detection

        Obstacle

        Close-range detection

        Within approx. 300 +/- 30 mm (11.8 +/- 1.2 in.)

        Buzzer: Sounds continuously

        Number of bars displayed: 1 (blinking)

        60 mm (2.36 in.) diameter pole

        Medium-range detection

        From approx. 300 +/- 30 to 425 +/- 42.5 mm (11.8 +/- 1.2 to 16.7 +/- 1.7 in.)

        Buzzer: Sounds intermittently (ON: 0.075 s. / OFF: 0.075 s.)

        Number of bars displayed: 2 (illuminated)

        60 mm (2.36 in.) diameter pole

        Long-range detection

        From approx. 425 +/- 42.5 to 550 +/- 55 mm (16.7 +/- 1.7 to 21.7 +/- 2.2 in.)

        Buzzer: Sounds intermittently (ON: 0.15 s. / OFF: 0.15 s.)

        Number of bars displayed: 3 (illuminated)

        60 mm (2.36 in.) diameter pole

        Longest-range detection

        From approx. 550 +/- 55 to 1000 +/- 100 mm (21.7 +/- 2.2 to 39.4 +/- 3.9 in.)

        Buzzer: Sounds intermittently (ON: 0.15 s. / OFF: 0.65 s.)

        Number of bars displayed: 4 (illuminated)

        Wall
        Tip:

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

    6. Rear corner sonar display and buzzer operation check

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

        Table 7. Operation Condition

        Ignition Switch

        TOYOTA Parking Assist-sensor System

        Shift Lever Position

        Vehicle Speed

        Parking Brake

        ON

        On

        R

        -

        -
        E346338C01

        *a

        Multi-information Display

        *b

        Multi-display

        *c

        Example (Rear Corner Sonar)

        *d

        Close-range Detection

        *e

        Medium-range Detection

        *f

        Long-range Detection
        E275507E16

        Standard

        Table 8. Multi-information Display and Buzzer

        Detection Range

        During Judgment

        Obstacle

        Close-range detection

        Within approx. 250 +/- 25 mm (9.8 +/- 1.0 in.)

        Buzzer: Sounds continuously

        Number of bars displayed: 1 (blinking)

        60 mm (2.36 in.) diameter pole

        Medium-range detection

        From approx. 250 +/- 25 to 375 +/- 37.5 mm (9.8 +/- 1.0 to 14.8 +/- 1.5 in.)

        Buzzer: Sounds intermittently (ON: 0.075 sec. / OFF: 0.075 sec.)

        Number of bars displayed: 2 (illuminated)

        60 mm (2.36 in.) diameter pole

        Long-range detection

        From approx. 375 +/- 37.5 to 500 +/- 50 mm (14.8 +/- 1.5 to 19.7 +/- 2.0 in.)

        Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.15 sec.)

        Number of bars displayed: 3 (illuminated)

        60 mm (2.36 in.) diameter pole
        Table 9. Multi-display and Buzzer

        Detection Range

        During Judgment

        Obstacle

        Close-range detection

        Within approx. 250 +/- 25 mm (9.8 +/- 1.0 in.)

        Buzzer: Sounds continuously

        Color of bars displayed: Red (blinking)

        60 mm (2.36 in.) diameter pole

        Medium-range detection

        From approx. 250 +/- 25 to 375 +/- 37.5 mm (9.8 +/- 1.0 to 14.8 +/- 1.5 in.)

        Buzzer: Sounds intermittently (ON: 0.075 s. / OFF: 0.075 s.)

        Color of bars displayed: Yellow (illuminated)

        60 mm (2.36 in.) diameter pole

        Long-range detection

        From approx. 375 +/- 37.5 to 500 +/- 50 mm (14.8 +/- 1.5 to 19.7 +/- 2.0 in.)

        Buzzer: Sounds intermittently (ON: 0.15 s. / OFF: 0.15 s.)

        Color of bars displayed: Yellow (illuminated)

        60 mm (2.36 in.) diameter pole
        Tip:

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

    7. Rear center sonar display and buzzer operation check

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

        Table 10. Operation Condition

        Ignition Switch

        TOYOTA Parking Assist-sensor System

        Shift Lever Position

        Vehicle Speed

        Parking Brake

        ON

        On

        R

        -

        -
        E346339C01

        *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

        -

        -
        E275466E12

        Standard

        Table 11. Multi-information Display and Buzzer

        Detection Range

        During Detection

        Obstacle

        Close-range detection

        Within approx. 300 +/- 30 mm (11.8 +/- 1.2 in.)

        Buzzer: Sounds continuously

        Number of bars displayed: 1 (blinking)

        60 mm (2.36 in.) diameter pole

        Medium-range detection

        From approx. 300 +/- 30 to 425 +/- 42.5 mm (11.8 +/- 1.2 to 16.7 +/- 1.7 in.)

        Buzzer: Sounds intermittently (ON: 0.075 sec. / OFF: 0.075 sec.)

        Number of bars displayed: 2 (illuminated)

        60 mm (2.36 in.) diameter pole

        Long-range detection

        From approx. 425 +/- 42.5 to 550 +/- 55 mm (16.7 +/- 1.7 to 21.7 +/- 2.2 in.)

        Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.15 sec.)

        Number of bars displayed: 3 (illuminated)

        60 mm (2.36 in.) diameter pole

        Longest-range detection

        From approx. 550 +/- 55 to 1500 +/- 150 mm (21.7 +/- 2.2 to 59.1 +/- 5.9 in.)

        Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.65 sec.)

        Number of bars displayed: 4 (illuminated)

        Wall
        Table 12. Multi-display and Buzzer

        Detection Range

        During Detection

        Obstacle

        Close-range detection

        Within approx. 300 +/- 30 mm (11.8 +/- 1.2 in.)

        Buzzer: Sounds continuously

        Color of bars displayed: Red (blinking)

        60 mm (2.36 in.) diameter pole

        Medium-range detection

        From approx. 300 +/- 30 to 425 +/- 42.5 mm (11.8 +/- 1.2 to 16.7 +/- 1.7 in.)

        Buzzer: Sounds intermittently (ON: 0.075 s. / OFF: 0.075 s.)

        Color of bars displayed: Yellow (illuminated)

        60 mm (2.36 in.) diameter pole

        Long-range detection

        From approx. 425 +/- 42.5 to 550 +/- 55 mm (16.7 +/- 1.7 to 21.7 +/- 2.2 in.)

        Buzzer: Sounds intermittently (ON: 0.15 s. / OFF: 0.15 s.)

        Color of bars displayed: Yellow (illuminated)

        60 mm (2.36 in.) diameter pole

        Longest-range detection

        From approx. 550 +/- 55 to 1500 +/- 150 mm (21.7 +/- 2.2 to 59.1 +/- 5.9 in.)

        Buzzer: Sounds intermittently (ON: 0.15 s. / OFF: 0.65 s.)

        Color of bars displayed: Yellow (illuminated)

        Wall
        Tip:

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