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TOYOTA PARKING ASSIST-SENSOR SYSTEM (w/ Multi-display) OPERATION CHECK

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  1. A01DN3SE01

    SELF-CHECK FUNCTION INSPECTION (INITIAL CHECK)


    1. Turn the engine switch on (IG).

    2. Turn the TOYOTA parking assist-sensor system off, or check that the TOYOTA parking assist-sensor system is off.

    3. Turn the engine switch off.

    4. Turn the engine switch on (IG).

    5. Turn the TOYOTA parking assist-sensor system on and check that the following occurs:

      1) After approximately 0.4 seconds, the buzzer sounds for approximately 0.7 to 1.3 seconds.

      2) The system starts detection operation mode.

      Tip:

      • During the initial check, malfunction detection operates and obstacle detection does not operate.

      • In the detection operation mode, obstacle detection and malfunction detection operate.

      • If a sensor has an open circuit or a sensor malfunctions because it is wet or frozen, a malfunction display is shown in the multi-information display and the buzzer sounds.

      • If the engine switch is turned to on (IG) while the TOYOTA parking assist-sensor system is on, the buzzer does not sound even though the malfunction detection operates.

  2. MALFUNCTION DISPLAY (MULTI-INFORMATION DISPLAY)


    1. Open circuit indication


      1. A01DPLBE01

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

        Tip:

        • The example shows an open circuit in the ultrasonic sensor (front corner sensor LH).

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

    2. Frozen indication


      1. A01DS45E01

        If a sensor is covered with foreign matter, such as mud or snow, the affected sensor is displayed as shown in the illustration.

        Tip:

        • The example shows that the ultrasonic sensor (front corner sensor LH) is covered with foreign matter.

        • If "CLEAN SONAR" is displayed, refer to "Frozen indication is displayed in self-check function" in the Problem Symptoms Table to inspect the problem (Click here).

  3. DETECTION RANGE MEASUREMENT AND DISPLAY INSPECTION


    1. Detection range measurement:

      Note:

      Make sure that the vehicle does not move by applying the parking brake firmly.


      1. Turn the engine switch on (IG).

      2. Move the shift lever to R to check the ultrasonic sensors.

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

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

      Note:

      • These detection ranges are applicable when positioning a pole with a diameter of 60 mm (2.36 in.) parallel or perpendicular to the ground.

      • The ranges vary depending on the measuring method and type of obstacle (such as walls).

      • For close-range and medium-range detection, the values shown are for when using a pole with a diameter of 60 mm (2.36 in.). For long-range detection, the values shown are for when using walls.

      • The No. 1 ultrasonic sensor side view detection range hatched area*1 represents the cross section of the top view of the detection range along the lines labeled A. The hatched area*1 does not represent the entire side view detection range.


      1. A01DR5RE03

        Detection range of front corner sensors (for 8 Sensor Type)

      2. A01DOGLE01

        Detection range of front center sensors (for 8 Sensor Type)

      3. A01DTJTE02

        Detection range of rear center sensors

      4. A01DOEEE01

        Detection range of rear corner sensors

    4. Check the displays and buzzer sounds when the ultrasonic sensors detect an obstacle.


      1. A01DP0ZE01

        Front corner sensors (for 8 Sensor Type)

        Table 1. Operation Condition
        Engine Switch TOYOTA Parking Assist-sensor System Shift Lever Position Vehicle Speed
        On (IG) ON In any position except P

        • Less than approximately 15 km/h (9.3 mph) if speed is increasing

        • Less than approximately 10 km/h (6.2 mph) if speed is decreasing
        Standard
        Table 2. Multi-information Display and Buzzer
        Detection Range During Judgment Obstacle

        *1

        Close-range detection

        Within approximately 300 +/-30 mm (11.8 +/-1.18 in.)

        Buzzer: Sounds continuously

        Number of bars displayed: 1 (blinking)

        		 60 mm (2.36 in.) diameter pole

        *2

        Medium-range detection

        From approximately 300 +/-30 to 400 +/-40 mm (11.8 +/-1.18 to 15.7 +/-1.57 in.)

        Buzzer: Sounds intermittently (On: 75 ms / Off: 75 ms)

        Number of bars displayed: 2 (illuminated)

        		 60 mm (2.36 in.) diameter pole

        *3

        Long-range detection

        From approximately 400 +/-40 to 500 +/-50 mm (15.7 +/-1.57 to 19.7 +/-1.97 in.)

        Buzzer: Sounds intermittently (On: 150 ms / Off: 150 ms)

        Number of bars displayed: 3 (illuminated)

        		 60 mm (2.36 in.) diameter pole
        Table 3. Multi-display and Buzzer
        Detection Range During Judgment Obstacle

        *1

        Close-range detection

        Within approximately 300 +/-30 mm (11.8 +/-1.18 in.)

        Buzzer: Sounds continuously

        *4: Red (illuminated)

        *5: Number of bars displayed: 1 (illuminated)

        		 60 mm (2.36 in.) diameter pole

        *2

        Medium-range detection

        From approximately 300 +/-30 to 400 +/-40 mm (11.8 +/-1.18 to 15.7 +/-1.57 in.)

        Buzzer: Sounds intermittently (On 75 ms / Off: 75 ms)

        *4: Yellow (blinking)

        *5: Number of bars displayed: 2 (illuminated)

        		 60 mm (2.36 in.) diameter pole

        *3

        Long-range detection

        From approximately 400 +/-40 to 500 +/-50 mm (15.7 +/-1.57 to 19.7 +/-1.97 in.)

        Buzzer: Sounds intermittently (On: 150 ms / Off: 150 ms)

        *4: Yellow (blinking)

        *5: Number of bars displayed: 3 (illuminated)

        		 60 mm (2.36 in.) diameter pole

        • *5: When shift lever in D

        Tip:

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

      2. A01DR8GE01

        Front center sensors (for 8 Sensor Type)

        Table 4. Operation Condition
        Engine Switch TOYOTA Parking Assist-sensor System Shift Lever Position Vehicle Speed
        On (IG) ON except P, R

        • Less than approximately 15 km/h (9.3 mph) if speed is increasing

        • Less than approximately 10 km/h (6.2 mph) if speed is decreasing
        Standard
        Table 5. Multi-information Display and Buzzer
        Detection Range During Detection Obstacle

        *1

        Close-range detection

        Within approximately 300 +/-30 mm (11.8 +/-1.18 in.)

        Buzzer: Sounds continuously

        Number of bars displayed: 1 (blinking)

        		 60 mm (2.36 in.) diameter pole

        *2

        Medium-range detection

        From approximately 300 +/-30 to 450 +/-50 mm (11.8 +/-1.18 to 17.7 +/-1.97 in.)

        Buzzer: Sounds intermittently (On: 75 ms / Off: 75 ms)

        Number of bars displayed: 2 (illuminated)

        		 60 mm (2.36 in.) diameter pole

        *3

        Long-range detection

        From approximately 450 +/-50 to 600 +/-60 mm (17.7 +/-1.97 to 23.6 +/-2.36 in.)

        Buzzer: Sounds intermittently (On: 150 ms / Off: 150 ms)

        Number of bars displayed: 3 (illuminated)

        		 60 mm (2.36 in.) diameter pole

        *4

        Longest-range detection

        From approximately 600 +/-60 to 1000 +/-100 mm (23.6 +/-2.36 to 39.4 +/-3.94 in.)

        Buzzer: Sounds intermittently (On: 150 ms / Off: 650 ms)

        Number of bars displayed: 4 (illuminated)

        		 60 mm (2.36 in.) diameter pole
        Table 6. Multi-display and Buzzer
        Detection Range During Detection Obstacle

        *1

        Close-range detection

        Within approximately 300 +/-30 mm (11.8 +/-1.18 in.)

        Buzzer: Sounds continuously

        *5: Red (illuminated)

        		 60 mm (2.36 in.) diameter pole

        *2

        Medium-range detection

        From approximately 300 +/-30 to 450 +/-50 mm (11.8 +/-1.18 to 17.7 +/-1.97 in.)

        Buzzer: Sounds intermittently (On: 75 ms / Off: 75 ms)

        *5: Yellow (blinking)

        		 60 mm (2.36 in.) diameter pole

        *3

        Long-range detection

        From approximately 450 +/-50 to 600 +/-60 mm (17.7 +/-1.97 to 23.6 +/-2.36 in.)

        Buzzer: Sounds intermittently (On: 150 ms / Off: 150 ms)

        *5: Yellow (blinking)

        		 60 mm (2.36 in.) diameter pole

        *4

        Long-range detection

        From approximately 600 +/-60 to 1000 +/-100 mm (23.6 +/-2.36 to 39.4 +/-3.94 in.)

        Buzzer: Sounds intermittently (On: 150 ms / Off: 150 ms)

        *5: Yellow (blinking)

        		 60 mm (2.36 in.) diameter pole

        • *5: When shift lever in D

        Tip:

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

      3. A01DNHYE01

        Rear corner sensors

        Table 7. Operation Condition
        Engine Switch TOYOTA Parking Assist-sensor System Shift Lever Position Vehicle Speed
        On (IG) ON R -
        Standard
        Table 8. Multi-information Display and Buzzer
        Detection Range During Judgment Obstacle

        *1

        Close-range detection

        Within approximately 250 +/-30 mm (9.84 +/-1.18 in.)

        Buzzer: Sounds continuously

        Number of bars displayed: 1 (blinking)

        		 60 mm (2.36 in.) diameter pole

        *2

        Medium-range detection

        From approximately 250 +/-30 to 375 +/-40 mm (9.84 +/-1.18 to 14.76 +/-1.57 in.)

        Buzzer: Sounds intermittently (On: 75 ms / Off: 75 ms)

        Number of bars displayed: 2 (illuminated)

        		 60 mm (2.36 in.) diameter pole

        *3

        Long-range detection

        From approximately 375 +/-40 to 550 +/-60 mm (14.76 +/-1.57 to 21.65 +/-2.36 in.)

        Buzzer: Sounds intermittently (On: 150 ms / Off: 150 ms)

        Number of bars displayed: 3 (illuminated)

        		 60 mm (2.36 in.) diameter pole
        Table 9. Multi-display and Buzzer
        Detection Range During Judgment Obstacle

        *1

        Close-range detection

        Within approximately 250 +/-30 mm (9.84 +/-1.18 in.)

        Buzzer: Sounds continuously

        *4: Red (illuminated)

        		 60 mm (2.36 in.) diameter pole

        *2

        Medium-range detection

        From approximately 250 +/-30 to 375 +/-40 mm (9.84 +/-1.18 to 14.76 +/-1.57 in.)

        Buzzer: Sounds intermittently (On: 75 ms / Off: 75 ms)

        *4: Yellow (blinking)

        		 60 mm (2.36 in.) diameter pole

        *3

        Long-range detection

        From approximately 375 +/-40 to 550 +/-60 mm (14.76 +/-1.57 to 21.65 +/-2.36 in.)

        Buzzer: Sounds intermittently (On: 150 ms / Off: 150 ms)

        *4: Yellow (blinking)

        		 60 mm (2.36 in.) diameter pole

        • *4: When shift lever in R

        Tip:

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

      4. A01DN6XE01

        Rear center sensors

        Table 10. Operation Condition
        Engine Switch TOYOTA Parking Assist-sensor System Shift Lever Position Vehicle Speed
        On (IG) ON R -
        Standard
        Table 11. Multi-information Display and Buzzer
        Detection Range During Detection Obstacle

        *1

        Close-range detection

        Within approximately 400 +/-40 mm (15.7 +/-1.57 in.)

        Buzzer: Sounds continuously

        Number of bars displayed: 1 (blinking)

        		 60 mm (2.36 in.) diameter pole

        *2

        Medium-range detection

        From approximately 400 +/-40 to 500 +/-50 mm (15.7 +/-1.57 to 19.7 +/-1.97 in.)

        Buzzer: Sounds intermittently (On: 75 ms / Off: 75 ms)

        Number of bars displayed: 2 (illuminated)

        		 60 mm (2.36 in.) diameter pole

        *3

        Long-range detection

        From approximately 500 +/-50 to 650 +/-70 mm (19.7 +/-1.97 to 25.6 +/-2.76 in.)

        Buzzer: Sounds intermittently (On: 150 ms / Off: 150 ms)

        Number of bars displayed: 3 (illuminated)

        		 60 mm (2.36 in.) diameter pole

        *4

        Longest-range detection

        From approximately 650 +/-70 to 1500 +/-150 mm (25.6 +/-2.76 to 59.1 +/-5.91 in.)

        Buzzer: Sounds intermittently (On: 150 ms / Off: 650 ms)

        Number of bars displayed: 4 (illuminated)

        		 Wall
        Table 12. Multi-display and Buzzer
        Detection Range During Detection Obstacle

        *1

        Close-range detection

        Within approximately 400 +/-40 mm (15.7 +/-1.57 in.)

        Buzzer: Sounds continuously

        *5: Red (illuminated)

        		 60 mm (2.36 in.) diameter pole

        *2

        Medium-range detection

        From approximately 400 +/-40 to 500 +/-50 mm (15.7 +/-1.57 to 19.7 +/-1.97 in.)

        Buzzer: Sounds intermittently (On: 75 ms / Off: 75 ms)

        *5: Yellow (blinking)

        		 60 mm (2.36 in.) diameter pole

        *3

        Long-range detection

        From approximately 500 +/-50 to 650 +/-70 mm (19.7 +/-1.97 to 25.6 +/-2.76 in.)

        Buzzer: Sounds intermittently (On: 150 ms / Off: 150 ms)

        *5: Yellow (blinking)

        		 60 mm (2.36 in.) diameter pole

        *4

        Longest-range detection

        From approximately 650 +/-70 to 1500 +/-150 mm (25.6 +/-2.76 to 59.1 +/-5.91 in.)

        Buzzer: Sounds intermittently (On: 150 ms / Off: 650 ms)

        *5: Yellow (blinking)

        		 Wall

        • *5: When shift lever in R

        Tip:

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