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Operation Check

  1. INITIAL CHECK FUNCTION 
      Fig 1: Engine Switch Blinking Pattern
      G04951809Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Turn the engine switch on (IG).
    2. After 2 seconds or more have passed, turn the clearance sonar main switch ON. Then check the buzzer sounding condition.

      Buzzer sounding: 

      1 +/-0.3 sec. 

      HINT:

      • If a malfunction is detected in the ultrasonic sensor circuits, the location of the malfunctioning sensor blinks on the display's vehicle graphic. However, after the sensor returns to normal, the display also returns to normal.
      • When the engine switch is turned on (IG) while the clearance sonar main switch is ON, the buzzer will not sound.
  2. MALFUNCTION OF MULTI-INFORMATION DISPLAY 
    1. Ultrasonic sensor open circuit
      1. If there is an open circuit between the ultrasonic sensor and the ECU or a sensor is malfunctioning, the malfunction is displayed as shown in the illustration.
        Fig 2: Identifying Multi-Information Display
        G04951810Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT:

        • The example shows an open circuit in the No. 1 ultrasonic sensor (front left sensor).
        • If a sensor has an open circuit, "Check Park Sonar System" is displayed. Refer to "open circuit in front sensor is displayed as a result or self-check" on the Problem Symptoms Chart 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: Identifying Multi-Information Display
        G04951811Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT:

        • The example shows that the No. 1 ultrasonic sensor (front sensors) is frozen.
        • If "Clean Park Sonar" is displayed, cleaning the foreign matter from the sensor will return the sensor to normal.
  3. MALFUNCTION OF MULTI-DISPLAY 
    1. Ultrasonic sensor open circuit
      1. If there is an open circuit between the ultrasonic sensor and the ECU or a sensor is malfunctioning, the malfunction is displayed as shown in the illustration.
        Fig 4: Identifying Ultrasonic Sensor Open Circuit
        G04951812Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        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 in rear sensor is displayed as a result of self-check" 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 5: Identifying Ultrasonic Sensor Frozen
        G04951813Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT:

        • The example shows that the 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.
  4. DETECTION RANGE MEASUREMENT AND DISPLAY INSPECTION 
    1. Detection range measurement
      CAUTION: 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 R position to check the front side sensors, rear center sensors and rear corner sensors.
      3. Move the shift lever to D, S and N position to check front side sensors, front corner sensors and front center sensors.
    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.
      1. Front center sensors detection range
        Fig 6: Identifying Front Center Sensors Detection Range
        G04951814Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Front corner sensors detection range
        Fig 7: Identifying Front Corner Sensors Detection Range
        G04951815Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Front side sensors detection range
        Fig 8: Identifying Front Side Sensors Detection Range
        G04951816Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. Rear center sensors detection range
        Fig 9: Identifying Rear Center Sensors Detection Range
        G04951817Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      5. Rear corner sensors detection range
        Fig 10: Identifying Rear Corner Sensors Detection Range
        G04951818Courtesy 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).
    4. When the ultrasonic sensors have detected an obstacle, check the multi-information display, multi-display and buzzer sounds with the clearance sonar main switch ON.

      Operation condition: 

      OPERATION CONDITION CHART

      Shift Lever Position Vehicle Speed Buzzer Detection, Multi-information Display Detection, Multi-display Detection
      Front Center LH
      Front Center RH      		 Front Corner LH
      Front Corner RH      		 Front Side LH
      Front Side RH      		 Rear Center LH
      Rear Center RH      		 Rear Corner LH
      Rear Corner RH
      P - Only perform check operation
      D, S 9 km/h (5 mph) or less ◦ ◦ ◦*1
      X*2      		 X X
      13 km/h (8 mph) or more X X X X X
      R 9 km/h (5 mph) or less X X ◦ ◦ ◦
      13 km/h (8 mph) or more X X ◦ ◦ ◦
      (N) 9 km/h (5 mph) or less ◦ ◦ ◦*1
      X*2      		 X X
      13 km/h (8 mph) or more X X X X X
      HINT:
      *1: w/o Advanced parking guidance system
      *2: w/ Advanced parking guidance system
      1. Check the buzzer sounds with the clearance sonar main switch ON.
        Fig 11: Identifying Buzzer Sounds With Clearance Sonar Main Switch ON Blinking Patterns
        G04951819Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Front detection range 

        FRONT DETECTION RANGE

        Detection Distance
        1. Close-range detection Within 300 +/-30 mm (11.8 +/-1.18 in.)
        2. Medium-range detection 300 +/-30 to 375 +/-40 mm (11.8 +/-1.18 to 14.8 +/-1.57 in.)
        3. Long-range detection 375 +/-40 to 600 +/-60 mm (14.8 +/-1.57 to 23.6 +/-2.36 in.)

        Rear detection range 

        REAR DETECTION RANGE

        Detection Distance
        1. Close-range detection Within 250 +/-30 mm (9.84 +/-1.18 in.)
        2. Medium-range detection 250 +/-30 to 375 +/-40 mm (9.84 +/-1.18 to 14.8 +/-1.57 in.)
        3. Long-range detection 375 +/-40 to 600 +/-60 mm (14.8 +/-1.57 to 23.6 +A2.36 in.)

        Front center detection range 

        FRONT CENTER DETECTION RANGE

        Detection Distance
        1. Close-range detection Within 300 +/-30 mm (11.8 +/-1.18 in.)
        2. Medium-range detection 300 +/-30 to 375 +/-40 mm (11.8 +/-1.18 to 14.8 +/-1.57 in.)
        3. Long-range detection 375 +/-40 to 500 +/-50 mm (14.8 +/-1.57 to 19.7 +/-1.97 in.)
        4. Maximum long-range detection 500 +/-50 to 1000 +/-100 mm (19.7 +/-1.97 to 39.4 +/-3.94 in.)

        Rear center detection range 

        REAR CENTER DETECTION RANGE

        Detection Distance
        1. Close-range detection Within 350 +/-40 mm (13.8 +/-1.57 in.)
        2. Medium-range detection 350 +/-40 to 450 +/-50 mm (13.8 +/-1.57 to 17.7 +/-1.97 in.)
        3. Long-range detection 450 +/-50 to 600 +/-60 mm (17.7 +/-1.97 to 23.6 +/-2.36 in.)
        4. Maximum long-range detection 600 +/-60 to 1000 +/-100 mm (23.6 +/-2.36 to 39.4 +/-3.94 in.)
        600 +/-60 to 1500 +/-150 mm (23.6 +/-2.36 to 59.1 +/-5.91 in.) (To the wall)

        Front side detection range 

        FRONT SIDE DETECTION RANGE

        Detection Distance
        1. Close-range detection Within 300 +/-30 mm (11.8 +/-1.18 in.)
        2. Medium-range detection 300 +/-30 to 375 +/-40 mm (11.8 +/-1.18 to 14.8 +/-1.57 in.)
        3. Long-range detection 375 +/-40 to 500 +/-50 mm (14.8 +/-1.57 to 19.7 +/-1.97 in.)

        HINT:

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

      2. Check the multi-display, multi-information display and buzzer, when the front corner sensors and front center sensors have detected an obstacle.

        Operation condition: 

        OPERATION CONDITION

        Engine Switch Clearance Sonar Main Switch Shift Lever Position Vehicle Speed
        on (IG) ON D, S, N 9 km/h (5 mph) or less
        Fig 12: Identifying Front Corner And Center Sensors Operation Condition
        G04951820Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Multi-information display 

        MULTI-INFORMATION DISPLAY REFERENCE

        Detection Range Buzzer Number of bars displayed
        1. Close-range detection Sounds continuously 1 (blinking)
        2. Medium-range detection Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) 2 (illuminated)
        3. Long-range detection Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) 3 (illuminated)
        4. Maximum long-range detection Sounds intermittently (ON: 150 msec. / OFF: 650 msec.) 4 (illuminated)
        Fig 13: Identifying Front Multi-Information Display
        G04951821Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Multi-display 

        MULTI-DISPLAY REFERENCE

        Detection Range Buzzer Number of bars displayed
        1. Close-range detection Sounds continuously 1 (red illumination)
        2. Medium-range detection Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) 2 (yellow illumination)
        3. Long-range detection Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) 3 (yellow illumination)
        4. Maximum long-range detection Sounds intermittently (ON: 150 msec. / OFF: 650 msec.) 4 (yellow illumination)

        HINT:

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

      3. Check the multi-display, multi-information display and buzzer, when the rear center sensors and rear corner sensors have detected an obstacle.

        Operation condition: 

        OPERATION CONDITION REFERENCE

        Engine Switch Clearance Sonar Main Switch Shift Lever Position
        on (IG) ON R position
        Fig 14: Identifying Rear Center And Corner Sensors
        G04951822Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Multi-information display 

        MULTI-INFORMATION DISPLAY REFERENCE

        Detection Range Buzzer Number of bars displayed
        1. Close-range detection Sounds continuously 1 (blinking)
        2. Medium-range detection Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) 2 (illuminated)
        3. Long-range detection Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) 3 (illuminated)
        4. Maximum long-range detection (for Rear center sensors) Sounds intermittently (ON: 150 msec. / OFF: 650 msec.) 4 (illuminated)
        Fig 15: Identifying Rear Multi-Information Display
        G04951823Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Multi-display 

        MULTI-DISPLAY REFERENCE

        Detection Range Buzzer Number of bars displayed
        1. Close-range detection Sounds continuously 1 (red illumination)
        *: Illumination (red)
        2. Medium-range detection Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) 2 (yellow illumination)
        *: Blinking (yellow)
        3. Long-range detection Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) 3 (yellow illumination)
        *: Blinking (yellow)
        4. Maximum long-range detection (for Rear center sensors) Sounds intermittently (ON: 150 msec. / OFF: 650 msec.) 4 (yellow illumination)
        *: Blinking (yellow)

        HINT:

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

      4. Check the multi-display, multi-information display and buzzer, when the front side sensors have detected an obstacle.

        Operation condition: 

        OPERATION CONDITION REFERENCE

        Engine Switch Clearance Sonar Main Switch Shift Lever Position
        on (IG) ON R position
        Fig 16: Identifying Front Side Sensors
        G04951824Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Multi-information display 

        MULTI-INFORMATION DISPLAY REFERENCE

        Detection Range Buzzer Number of bars displayed
        1. Close-range detection Sounds continuously 1 (blinking)
        2. Medium-range detection Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) 2 (illuminated)
        3. Long-range detection Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) 3 (illuminated)
        Fig 17: Identifying Front Side Multi-Information Display
        G04951825Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Multi-display 

        MULTI-DISPLAY REFERENCE

        Detection Range Buzzer Number of bars displayed
        1. Close-range detection Sounds continuously 1 (red illumination)
        *: Illumination (red)
        2. Medium-range detection Sounds intermittently (ON: 75 msec. / OFF: 75 msec.) 2 (yellow illumination)
        *: Blinking (yellow)
        3. Long-range detection Sounds intermittently (ON: 150 msec. / OFF: 150 msec.) 3 (yellow illumination)
        *: Blinking (yellow)

        HINT:

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

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