Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VJ9V
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 11/2017]
Title: PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: OPERATION CHECK; 2016 - 2017 MY Sienna [12/2015 - 11/2017]

OPERATION CHECK

1. CHECK INITIAL CHECK FUNCTION

(a) Turn the ignition switch to ON.

(b) 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 seconds

HINT:

  • If a malfunction is detected in the ultrasonic sensor circuits, the location of the malfunctioning sensor blinks on the displayed vehicle graphic. However, after the sensor returns to normal, the display also returns to normal.
  • When the ignition switch is turned to ON while the clearance sonar main switch is on, the buzzer will not sound.

2. MALFUNCTION DISPLAY (MULTI-INFORMATION DISPLAY)

(a) 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.

HINT:

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

(b) 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:

  • If a frozen indication is displayed, read Precaution for Intuitive Parking assist system first and confirm that the sensor is not covered with foreign matter.
  • Check for DTCs and troubleshoot according to each inspection procedure after confirming that the sensor is not covered with foreign matter.

3. MALFUNCTION DISPLAY (MULTI-DISPLAY)

(a) 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.

HINT:

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

(b) 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:

  • If a frozen indication is displayed, read Precaution for Intuitive Parking assist system first and confirm that the sensor is not covered with foreign matter.
  • Check for DTCs and troubleshoot according to each inspection procedure after confirming that the sensor is not covered with foreign matter.

4. DETECTION RANGE MEASUREMENT AND DISPLAY CHECK

NOTICE:

Apply the parking brake securely so that the vehicle does not move.

(a) Turn the ignition switch to ON.

(b) Turn the clearance sonar main switch on.

(c) Move the shift lever to R to check the No. 1 ultrasonic sensors.

(d) Move the shift lever to D and N to check the No. 1 ultrasonic sensors (front sensor).

(e) Move the φ60 mm (2.36 in.) pole around the sensor to measure the detection range of the sensor.

NOTICE:

  • These detection ranges are applicable when positioning the φ60 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).
  • 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 detection range of the resin bumper and steel bumper are not the same, as their installation positions are slightly different.

(1) No. 1 ultrasonic sensor (front sensor) detection range

(2) No. 1 ultrasonic sensor (rear sensor) detection range

(3) No. 1 ultrasonic sensor (rear center sensor) detection range

(f) When the ultrasonic sensors have detected an obstacle, check the navigation receiver assembly, multi-information display and that the No. 1 clearance warning buzzer sounds with the clearance sonar main switch on.

Operation Condition

Shift Lever Position

Vehicle Speed

Navigation Receiver Assembly Detection, Multi-information Display Detection, Buzzer Detection

No. 1 Ultrasonic Sensor

(Front Sensor)

No. 1 Ultrasonic Sensor

(Rear Sensor)

No. 1 Ultrasonic Sensor

(Rear Center Sensor)

P

-

Only perform check operation

D, S, (N)

10 km/h (6.2 mph) or less

X

X

R

No limit

(1) Check that the buzzer sounds with the clearance sonar main switch on as shown in the illustration.

No. 1 Ultrasonic Sensor (Front Sensor) 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 14.76 +/-1.57 in.)

3. Long-range detection

375 +/-40 to 600 +/-60 mm (14.76 +/-1.57 to 23.62 +/- 2.36 in.)

No. 1 Ultrasonic Sensor (Rear Sensor) 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 14.76 +/-1.57 in.)

3. Long-range detection

375 +/-40 to 850 +/-90 mm (14.76 +/-1.57 to 33.46 +/-3.54 in.)

No. 1 Ultrasonic Sensor (Rear Center Sensor) Detection Range

Detection

Distance

1. Close-range detection

Within 350 +/-40 mm (13.78 +/-1.57 in.)

2. Medium-range detection

350 +/-40 to 450 +/-50 mm (13.78 +/-1.57 to 17.72 +/-1.96 in.)

3. Long-range detection

450 +/-50 to 850 +/-90 mm (17.72 +/-1.96 to 33.46 +/-3.54 in.)

4. Maximum long-range detection

850 +/-90 to 1800 +/-180 mm (33.46 +/-3.54 to 70.87 +/-7.09 in.)

HINT:

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

(2) When the No. 1 ultrasonic sensors (front sensor) have detected an obstacle, check the displays and buzzer sounds.

Operation Condition

Ignition Switch

Clearance Sonar Main Switch

Shift Lever Position

Vehicle Speed

ON

On

D, N

10 km/h (6.2 mph) or less

Multi-information Display

Detection Range

Buzzer

Indication

Close-range detection

Sounds continuously

1 (red illumination)

Medium-range detection

Sounds intermittently

(ON: 75 msec. / OFF: 75 msec.)

2 (yellow illumination)

Long-range detection

Sounds intermittently

(ON: 150 msec. / OFF: 150 msec.)

3 (yellow illumination)

Multi-display

Detection Range

Buzzer

Number of Bars Displayed

Close-range detection

Sounds continuously

1 (red illumination)

*: Illumination (red)

Medium-range detection

Sounds intermittently

(ON: 75 msec. / OFF: 75 msec.)

2 (yellow illumination)

*: Blinking (yellow)

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.

(3) When the No. 1 ultrasonic sensors (rear sensor) have detected an obstacle, check the displays and buzzer sounds.

Operation Condition

Ignition Switch

Clearance Sonar Main Switch

Shift Lever Position

ON

On

R

Multi-information Display

Detection Range

Buzzer

Number of Bars Displayed

Close-range detection

Sounds continuously

1 (red illumination)

Medium-range detection

Sounds intermittently

(ON: 75 msec. / OFF: 75 msec.)

2 (yellow illumination)

Long-range detection

Sounds intermittently

(ON: 150 msec. / OFF: 150 msec.)

3 (yellow illumination)

Multi-display

Detection Range

Buzzer

Number of Bars Displayed

Close-range detection

Sounds continuously

1 (red illumination)

*: Illumination (red)

Medium-range detection

Sounds intermittently

(ON: 75 msec. / OFF: 75 msec.)

2 (yellow illumination)

*: Blinking (yellow)

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.

(4) When the No. 1 ultrasonic sensors (rear center sensor) have detected an obstacle, check the displays and buzzer sounds.

Operation Condition

Ignition Switch

Clearance Sonar Main Switch

Shift Lever Position

ON

On

R

Multi-information display

Detection Range

Buzzer

Number of Bars Displayed

Close-range detection

Sounds continuously

1 (red illumination)

Medium-range detection

Sounds intermittently

(ON: 75 msec. / OFF: 75 msec.)

2 (yellow illumination)

Long-range detection

Sounds intermittently

(ON: 150 msec. / OFF: 150 msec.)

3 (yellow illumination)

Maximum long-range detection

Sounds intermittently

(ON: 150 msec. / OFF: 650 msec.)

4 (yellow illumination)

Multi-display

Detection Range

Buzzer

Number of Bars Displayed

Close-range detection

Sounds continuously

1 (red illumination)

*: Illumination (red)

Medium-range detection

Sounds intermittently

(ON: 75 msec. / OFF: 75 msec.)

2 (yellow illumination)

*: Blinking (yellow)

Long-range detection

Sounds intermittently

(ON: 150 msec. / OFF: 150 msec.)

3 (yellow illumination)

*: Blinking (yellow)

Maximum long-range detection

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.