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Operation Check

  1. SELF-CHECK FUNCTION INSPECTION 
    1. Turn the engine switch on (IG).
    2. When the intuitive parking assist system is turned ON, check that the following occurs: 1) after 0.1 milliseconds, the buzzer sounds for approximately 0.8 seconds, and 2) the system starts the obstacle detection operation.
      Fig 1: Checking Buzzer Sound Operation
      G05253383Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      • If a sensor has an open circuit or a sensor's detection operation malfunctions because it is wet or frozen, a malfunction display is shown in the multi-information display and multi-display, and the buzzer sounds.
      • When the sensor condition returns to normal, the system ends normal clearance sonar mode and returns to steering sensing mode.
      • If the clearance sonar main switch is ON and the engine switch is turned on (IG), the buzzer does not sound.
  2. MALFUNCTION DISPLAY (MULTI-INFORMATION DISPLAY) 
    1. Ultrasonic sensor open circuit
      1. 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.
        Fig 2: Multi-Information Display (Ultrasonic Sensor Open Circuit)
        G05299916Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT:

        • The example shows an open circuit in the No. 3 ultrasonic sensor (front left sensor).
        • If a sensor has an open circuit, refer to "open circuit is displayed during self-check function" on the Problem Symptoms Table to inspect it.
    2. Ultrasonic sensor frozen
      1. If a sensor is covered with foreign matter, such as mud or snow, the affected sensor is displayed as shown in the illustration.
        Fig 3: Multi-Information Display (Ultrasonic Sensor Frozen)
        G05811453Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT:

        • The example shows that the No. 3 ultrasonic sensor (front left sensor) is covered with foreign matter.
        • If "CLEAN SONAR" is displayed, cleaning the foreign matter from the sensor will return the sensor to normal.
    3. Steering angle information failure display
      1. A malfunction condition is displayed as shown in the illustration if one of the following occurs: 1) the steering angle sensor is determined to be malfunctioning; 2) the VGRS system*1 is malfunctioning; 3) there is an open circuit between the steering angle sensor and clearance warning ECU; or 4) as a result of low battery voltage, CAN communication information is blocked.
        Fig 4: Multi-Information Display (Steering Angle Information Failure Display)
        G05299918Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT:

        • *1: Variable gear ratio steering system (1UR-FSE only)
        • The steering angle sensor and VGRS system communicate with the clearance warning ECU via the CAN.
        • When a steering angle information failure occurs, the system enters normal clearance sonar mode.
    4. Steering angle mid-point learning operation display
      1. If the malfunction can be repaired by disconnecting and reconnecting the cable from the negative (-) battery terminal, or performing the steering angle mid-point learning operation again, it is displayed as shown in the illustration.
        Fig 5: Multi-Information Display (Steering Angle Mid-Point Learning Operation Display)
        G05299919Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT:

        • When the steering angle mid-point learning operation is complete, the steering sensing function returns to normal.
        • During the steering angle mid-point learning operation, the system enters normal clearance sonar mode.
  3. MALFUNCTION DISPLAY (MULTI-DISPLAY) 
    1. Ultrasonic sensor open circuit
      1. 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.

        HINT:

        • This example shows an open circuit in the No. 1 ultrasonic sensor (rear right sensor).
        • If a sensor has an open circuit, refer to "open circuit is displayed during self-check function" on the Problem Symptoms Table to inspect it.
          Fig 6: Malfunction Display (Ultrasonic Sensor Open Circuit)
          G05299920Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Ultrasonic sensor frozen
      1. If a sensor is covered with foreign matter, such as mud or snow, the affected sensor is displayed as shown in the illustration.

        HINT:

        • The example shows that the No. 3 ultrasonic sensor (front left sensor) is covered with foreign matter.
        • If "CLEAN SONAR" is displayed, cleaning the foreign matter from the sensor will return the sensor to normal.
          Fig 7: Malfunction Display (Ultrasonic Sensor Frozen)
          G05299921Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Steering angle information failure display
      1. A malfunction condition is displayed as shown in the illustration if one of the following occurs: 1) the steering angle sensor is determined to be malfunctioning; 2) the VGRS system*1 is malfunctioning; 3) there is an open circuit between the steering angle sensor and clearance warning ECU; or 4) as a result of low battery voltage, CAN communication information is blocked.

        HINT:

        • *1: Variable gear ratio steering system (1UR-FSE only)
        • The steering angle sensor and VGRS system communicate with the clearance warning ECU via the CAN.
        • When a steering angle information failure occurs, the system enters normal clearance sonar mode.
        • The detection range display labeled *2 appears in normal clearance sonar mode.
          Fig 8: >Malfunction Display (Steering Angle Information Failure)
          G05299922Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Steering angle mid-point learning operation display
      1. If the malfunction can be repaired by disconnecting and reconnecting the cable from the negative (-) battery terminal, or performing the steering angle mid-point learning operation again, it is displayed as shown in the illustration.

        HINT:

        • When the steering angle mid-point learning operation is complete, the steering sensing function returns to normal.
        • During the steering angle mid-point learning operation, the system enters normal clearance sonar mode.
        • The detection range display labeled *1 appears in normal clearance sonar mode.
          Fig 9: Malfunction Display (Steering Angle Mid-Point Learning Operation)
          G05299923Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. DETECTION RANGE MEASUREMENT AND DISPLAY INSPECTION 
    1. Detection range measurement
      NOTE: Make sure the vehicle does not move by applying the parking brake firmly.
      1. Turn the engine switch on (IG).
      2. Move the shift lever to any position except P or R to check the No. 3 ultrasonic sensors.

        HINT:

        The front right center and front left center sensors (No. 3 ultrasonic sensors) do not operate when the shift lever is on R.

      3. Move the shift lever to any position except R to check the No. 1 and No. 2 ultrasonic sensors.

        HINT:

        • The No. 1 and No. 2 ultrasonic sensors do not operate when the shift lever is in a position other than R.
        • The front right center and front left center sensors (No. 3 ultrasonic sensors) do not operate when the shift lever is on R.
    2. Turn the clearance sonar main switch ON.
    3. Move a ø 60 mm (2.36 in.) pole near each sensor to measure its detection range.
      • No. 3 Ultrasonic Sensor Detection Range:
        Fig 10: Identifying Detection Range Measurement (No. 3 Ultrasonic Sensor Detection Range)
        G05299924Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • No. 1 Ultrasonic Sensor Detection Range:
        Fig 11: Identifying Detection Range Measurement (No. 1 Ultrasonic Sensor Detection )
        G05299925Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • No. 2 Ultrasonic Sensor Detection Range:
        Fig 12: Identifying Detection Range Measurement (No. 2 Ultrasonic Sensor Detection Range)
        G05299926Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:
      • These detection ranges are applicable when positioning the ø 60 mm (2.36 in.) pole parallel or perpendicular to the ground. The ranges vary depending on the measuring method and type of obstacle (such as walls).
      • The No. 1 ultrasonic sensor side view detection range's hatched area (labeled *1) represents the cross section of the top view detection range's A lines. The hatched area (*1) does not represent the entire side view detection range.
    4. When the No. 3 ultrasonic sensors have detected an obstacle, check the displays and buzzer sounds.

      Operation condition: 

      OPERATION CONDITION CHART

      Engine Switch Clearance Sonar Main Switch Shift Lever Position Vehicle Speed
      on (IG) ON In any position except P, R 10 km/h (6 mph) or less
      1. Multi-information Display and Multi-display
        Fig 13: Identifying Multi-Information Display And Multi-Display
        G05299927Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Buzzer Sound
        Fig 14: Buzzer Sound Blinking Pattern
        G05299928Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard 

        Multi-information display (shift lever position not on P) 

        MULTI-INFORMATION DISPLAY CHART (SHIFT LEVER POSITION NOT ON P)

        Detection Range During Collision Judgment During Avoidance Judgment During Low Priority Avoidance Judgment
        *1 Close-range detection Within approx. 250 +-50 mm (9.84+-1.97 in.) Buzzer: Sounds continuously Number of bars displayed: 1 (Blinking)
        No steering guide mark        		 - -
        *2 Medium-range detection From approx. 250 +-50 to 375 +-50 mm (9.84 +-1.97 to 14.76 +-1.97 in.) Buzzer: Sounds Intermittently (ON: 75 msec. / OFF: 75 msec.) Number of bars displayed: 2 (illuminated) No steering guide mark Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) Number of bars displayed: 2 (illuminated)
        Steering guide mark illuminates        		 Buzzer: Does not sound Number of bars displayed: 2 (illuminated)
        No steering guide mark
        *3 Long-range detection From approx. 375 +-50 to 500 +-50 mm (14.76 +-1.97 to 19.69 +-1.97 in.) Buzzer: Sounds Intermittently (ON: 150 msec. /OFF: 150 msec.)
        Number of bars displayed: 3 (illuminated)
        No steering guide mark        		 Buzzer: Sounds Intermittently (ON: 150 msec. / OFF: 150 msec.)
        Number of bars displayed: 3 (illuminated)
        Steering guide mark illuminates        		 Buzzer: Does not sound Number of bars displayed: 3 (illuminated)
        No steering guide mark
        *4 Maximum long-range detection From approx. 500 +-50 to 1,000 +-100 mm (19.69 +-1.97 to 39.37 +-3.94 in.) Buzzer: Sounds intermittently (ON: 150 msec./OFF: 650 msec.)
        Number of bars displayed: 4 (illuminated) No steering guide mark        		 Buzzer: Sounds intermittently (ON: 150 msec. /OFF: 650 msec.)
        Number of bars displayed: 4 (illuminated) Steering guide mark illuminates        		 Buzzer: Does not sound Number of bars displayed: 4 (illuminated)
        No steering guide mark

        Multi-display (shift lever position not on P) 

        MULTI-INFORMATION DISPLAY CHART (SHIFT LEVER POSITION NOT ON P)

        Detection Range During Collision Judgment During Avoidance Judgment During Low Priority Avoidance Judgment
        *1 Close-range detection Within approx. 250 +-50 mm (9.84+-1.97 in.) Buzzer: Sounds continuously Number of bars displayed: 1 (red illumination) No steering guide mark - -
        *2 Medium-range detection From approx. 250 +-50 to 375 +-50 mm (9.84 +-1.97 to 14.76 +-1.97 in.) Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) Number of bars displayed: 2 (yellow illumination) No steering guide mark Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) Number of bars displayed: 2 (yellow illumination) Steering guide mark illuminates Buzzer: Does not sound Number of bars displayed: 2 (yellow illumination) No steering guide mark
        *3 Long-range detection From approx. 375 +-50 to 500 +-50 mm (14.76 +-1.97 to 19.69 +-1.97 in.) Buzzer: Sounds intermittently (ON: 150 msec./OFF: 150 msec.)
        Number of bars displayed: 3 (yellow illumination) No steering guide mark        		 Buzzer: Sounds intermittently (ON: 150 msec./OFF: 150 msec.) Number of bars displayed: 3 (yellow illumination) Steering guide mark illuminates Buzzer: Does not sound Number of bars displayed: 3 (green illumination) No steering guide mark
        *4 Maximum long-range detection From approx. 500 +-50 to 1,000 +-100 mm (19.69 +-1.97 to 39.37 +-3.94 in.) Buzzer: Sounds intermittently (ON: 150 msec. /OFF: 650 msec.)
        Number of bars displayed: 4 (yellow illumination) No steering guide mark        		 Buzzer: Sounds intermittently (ON: 150 msec./OFF: 650 msec.)
        Number of bars displayed: 4 (yellow illumination) Steering guide mark illuminates        		 Buzzer: Does not sound Number of bars displayed: 4 (green illumination) No steering guide mark

        w/ Rear view monitor (shift lever position R) 

        MULTI-INFORMATION DISPLAY CHART (SHIFT LEVER POSITION R)

        Detection Range During Collision Judgment During Avoidance Judgment During Low Priority Avoidance Judgment
        *1 Close-range detection Within approx. 250 +-50 mm (9.84+-1.97 in.) Buzzer: Sounds continuously *5: Illumination (red) - -
        *2 Medium-range detection From approx. 250 +-50 to 375 +-50 mm (9.84 +-1.97 to 14.76 +-1.97 in.) Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) *5: Blinking (yellow) Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) *5: Blinking (yellow) Buzzer: Does not sound *5: Illumination (green)
        *3 Long-range detection From approx. 375 +-50 to 500 +-50 mm (14.76 +-1.97 to 19.69 +-1.97 in.) Buzzer: Sounds intermittently (ON: 150 msec./OFF: 150 msec.) "5: Blinking (yellow) Buzzer: Sounds intermittently (ON: 150 msec./OFF: 150 msec.) *5: Blinking (yellow) Buzzer: Does not sound *5: Illumination (green)
        *4 Maximum long-range detection From approx. 500 +-50 to 1,000 +-100 mm (19.69 +-1.97 to 39.37 +-3.94 in.) Buzzer: Sounds intermittently (ON: 150 msec./OFF: 650 msec.) *5: Blinking (yellow) Buzzer: Sounds intermittently (ON: 150 msec. /OFF: 650 msec.) *5: Blinking (yellow) Buzzer: Does not sound *5: Illumination (green)

        HINT:

        • Ultrasonic waves are used to measure the detection range. However, the detection range may vary depending on the ambient temperature.
        • "During collision judgment" refers to situations where the obstacle cannot be avoided using the steering wheel.
        • "During avoidance judgment" refers to situations where the obstacle can be avoided using the steering wheel.
        • "During low priority avoidance judgment" refers to situations where, with the current steering wheel position, the vehicle will not come within 250 mm (9.84 in.) of the obstacle.
        • *5 in the illustration refers to the color and status of the steering guide mark on the displays.
        • When the shift lever is on R, the front left center and front right center sensors do not operate.
    5. When the No. 2 ultrasonic sensors have detected an obstacle, check the display and buzzer sounds.

      Operation condition: 

      OPERATION CONDITION CHART

      Engine Switch Clearance Sonar Main Switch Shift Lever Position Vehicle Speed
      on (IG) ON R -
      1. Multi-information Display and Multi-display
        Fig 15: Identifying Multi-Information Display And Multi-Display
        G05299929Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Buzzer Sound
        Fig 16: Buzzer Sound Blinking Pattern
        G05299930Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard 

        Multi-information display (shift lever position R) 

        MULTI-INFORMATION DISPLAY CHART (SHIFT LEVER POSITION R)

        Detection Range During Detection
        *1 Close-range detection Within approx. 350 +-50 mm (13.78 +-1.97 In.) Buzzer: Sounds continuously Number of bars displayed: 1 (blinking)
        *2 Medium-range detection From approx. 350 +-50 to 450 +-50 mm (13.78 +-1.97 to 17.72 +-1.97 In.) Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) Number of bars displayed: 2 (illuminated)
        *3 Long-range detection From approx. 450 +-50 to 600 +-60 mm (17.72 +-1.97 to 23.62 +-2.36 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) Number of bars displayed: 3 (illuminated)
        *4 Maximum long-range detection From approx. 600 +-60 to 1,500 +-150 mm (23.62 +-2.36 to 59.06 +-5.91 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 650 msec.) Number of bars displayed: 4 (illuminated)

        Multi-display (shift lever position not on P) 

        MULTI-INFORMATION DISPLAY CHART (SHIFT LEVER POSITION NOT ON P)

        Detection Range During Collision Judgment
        *1 Close-range detection Within approx. 350 +-50 mm (13.78 +-1.97 in.) Buzzer: Sounds continuously Number of bars displayed: 1 (red illumination)
        *2 Medium-range detection From approx. 350 +-50 to 450 +-50 mm (13.78 +-1.97 to 17.72 +-1.97 in.) Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) Number of bars displayed: 2 (yellow illumination)
        *3 Long-range detection From approx. 450 +-50 to 600 +-60 mm (17.72 +-1.97 to 23.62 +-2.36 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) Number of bars displayed: 3 (yellow illumination)
        *4 Maximum long-range detection From approx. 600 +-60 to 1,500 +-150 mm (23.62 +-2.36 to 59.06 +-5.91 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 650 msec.) Number of bars displayed: 4 (yellow illumination)

        w/ Rear view monitor (shift lever position R) 

        MULTI-INFORMATION DISPLAY CHART (SHIFT LEVER POSITION R)

        Detection Range During Collision Judgment
        *1 Close-range detection Within approx. 350 +-5 mm (13.78 +-1.97 in.) Buzzer: Sounds continuously *5: Illumination (red)
        *2 Medium-range detection From approx. 350 +-50 to 450 +-50 mm (13.78 +-17.72 to 14.76 +-1.97 in.) Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) *5: Blinking (yellow)
        *3 Long-range detection From approx. 450 +-50 to 600 +-50 mm (17.72 +-to 23.62 +-1.97 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) *5: Blinking (yellow)
        *4 Maximum long-range detection From approx. 600 +-50 to 1,500 mm (23.62 +-2.36 to 59.06 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 650 msec.) *5: Blinking (yellow)

        HINT:

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

    6. When the No. 1 ultrasonic sensors have detected an obstacle, check the display and buzzer sounds.

      Operation condition: 

      OPERATION CONDITION CHART

      Engine Switch Clearance Sonar Main Switch Shift Lever Position Vehicle Speed
      on (IG) ON R 10 km/h (6 mph) or less
      1. Multi-information Display and Multi-display
        Fig 17: Identifying Multi-Information Display And Multi-Display
        G05299931Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Buzzer Sound
        Fig 18: Buzzer Sound Blinking Pattern
        G05299932Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard 

        Multi-information display (shift lever position R) 

        MULTI-INFORMATION DISPLAY CHART (SHIFT LEVER POSITION R)

        Detection Range During Detection
        *1 Close-range detection Within approx. 250 +-50 mm (9.84 +-1.97 in.) Buzzer: Sounds continuously Number of bars displayed: 1 (blinking)
        *2 Medium-range detection From approx. 250 +-50 to 375 +-50 mm (9.84 +-1.97 to 14.76 +-1.97 in.) Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) Number of bars displayed: 2 (illuminated)
        *3 Long-range detection From approx. 375 +-50 to 500 +-50 mm (14.76 +-1.97 to 19.69 +-2.36 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) Number of bars displayed: 3 (illuminated)

        Multi-display (shift lever position not on P) 

        MULTI-INFORMATION DISPLAY CHART (SHIFT LEVER POSITION NOT ON P)

        Detection Range During Collision Judgment
        *1 Close-range detection Within approx. 250 +-50 mm (9.84 +-1.97 in.) Buzzer: Sounds continuously Number of bars displayed: 1 (red illumination)
        *2 Medium-range detection From approx. 250 +-50 to 375 +-50 mm (9.84 +-1.97 to 14.76 +-1.97 in.) Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) Number of bars displayed: 2 (yellow illumination)
        *3 Long-range detection From approx. 375 +-50 to 500 +-50 mm (14.76 +-1.97 to 19.69 +-2.36 in.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) Number of bars displayed: 3 (yellow illumination)

        w/ Rear view monitor (shift lever position R) 

        MULTI-INFORMATION DISPLAY CHART (SHIFT LEVER POSITION R)

        Detection Range During Collision Judgment
        *1 Close-range detection Within approx. 250 +-50 mm (9.84 +-1.97 In.) Buzzer: Sounds continuously *4 : Illumination (red)
        *2 Medium-range detection From approx. 250 +-50 to 375 +-50 mm (9.84 +-1.97 to 14.76 +-1.97 In.) Buzzer: Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) *4: Blinking (yellow)
        *3 Long-range detection From approx. 375 +-50 to 500 +-50 mm (14.76 +-1.97 to 19.69 +-2.36 In.) Buzzer: Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) *4: Blinking (yellow)

        HINT:

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

    7. While changing the steering angle, check that the wheel angle is displayed on the multi-display.

      Standard: 

      Result is as shown in the illustration. 

      Fig 19: Identifying Types Of Wheel Angle
      G05299933Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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