- The ultrasonic sensor is covered with foreign matter, such as mud or snow
- The ultrasonic sensor is frozen
| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM1000000019034 |
| Model Year Start: 2018 | Model: Sienna | Prod Date Range: [11/2017 - ] |
| Title: PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: OPERATION CHECK; 2018 - 2020 MY Sienna [11/2017 - ] | ||
OPERATION CHECK
1. SELF-DIAGNOSIS SYSTEM
(a) If the clearance warning ECU detects that an ultrasonic sensor is malfunctioning, a malfunction indication is displayed on the combination meter assembly and radio and display receiver assembly.
|
Malfunctioning Item |
Detection Condition |
Warning Message (Multi-information Display) |
Buzzer Sounding (No. 1 Clearance Warning Buzzer) |
Suspected Area |
|---|---|---|---|---|
|
Frozen indication |
|
Clean Park Sonar |
○ |
|
|
Open circuit indication |
|
Check Park Sonar System |
○ |
Check for DTCs Click here
|
![2018 - 2020 MY Sienna [11/2017 - ]; PARK ASSIST / MONITORING: INTUITIVE PARKING ASSIST SYSTEM: PRECAUTION](/t3Portal/stylegraphics/info.gif)
(1) Buzzer Sounding (No. 1 Clearance Warning Buzzer)
HINT:
Buzzer sounding is stopped after approximately 7.5 seconds elapsed.
2. DETECTION RANGE MEASUREMENT AND DISPLAY INSPECTION
NOTICE:
The following measurement and inspection will be performed with the shift lever in a position other than P. Be sure to apply the parking lever and depress the brake pedal firmly to prevent the vehicle from moving.
(a) Turn the ignition switch to ON.
(b) Turn the intuitive parking assist system on.
(c) Detection range measurement:
(1) Move the shift lever according to the table below.
|
Measurement Area |
Shift Lever Position |
|
Front Corner Sensor (No. 1 ultrasonic sensor)*1 |
In any position other than P |
|
Rear Corner Sensor (No. 1 ultrasonic sensor) |
R |
|
Rear Center Sensor (No. 1 ultrasonic sensor) |
- *1: for 6 Sensor Type
(2) Move a 60 mm (2.4 in.) diameter pole near each sensor to measure its detection range. When measuring the Longest-range detection of the front center sensor and the rear center sensor, use a wall or equivalent.
NOTICE:
These detection ranges are applicable when positioning the 60 mm (2.4 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).
HINT:
Have an assistant move the pole.
Front Corner Sensor (for 6 Sensor Type) and Rear Corner Sensor Detection Range
NOTICE:
The front corner sensor (for 6 sensor type) and rear corner sensor side view detection range (hatched area labeled (B)) represents the cross section of the top view detection range (A). The hatched area (B) does not represent the entire side view detection range.
Rear Center Sensor Detection Range
(d) Front corner sensor display and buzzer operation check
(1) When the front corner ultrasonic sensor (front corner sensor) have detected an obstacle, check the displays and check that the buzzer sounds.
Operation Condition
|
Ignition Switch |
Intuitive Parking Assist System |
Shift Lever Position |
Vehicle Speed |
|---|---|---|---|
|
ON |
On |
In any position other than P |
Less than approximately 10 km/h (6 mph) if speed is increasing |
|
*a |
Front Corner Sensor Display |
*b |
Combination Meter Assembly |
|
*c |
Multi-display |
*d |
w/ Parking Assist Monitor System |
|
*e |
w/ Panoramic View Monitor System |
*f |
When panoramic view screen is display |
|
*g |
Interruption display |
*h |
Long-range Detection |
|
*i |
Medium-range Detection |
*j |
Close-range Detection |
Standard:
Multi-information Display and Buzzer
|
Detection Range |
During Judgment |
Obstacle |
|---|---|---|
|
Close-range detection Within approximately 250 +/- 30 mm (9.84 +/- 1.18 in.) |
Buzzer: Sounds continuously Number of bars displayed: 1 (blinking) |
60 mm (2.4 in.) diameter pole |
|
Medium-range detection From approximately 250 +/- 30 mm to 375 +/- 40 mm (9.84 +/- 1.18 mm to 14.76 +/- 1.57 in.) |
Buzzer: Sounds intermittently (ON: 0.1 seconds / OFF: 0.1 seconds) Number of bars displayed: 2 (illuminated) |
60 mm (2.4 in.) diameter pole |
|
Long-range detection From approximately 375 +/- 40 to 600 +/- 60 mm (14.76 +/- 1.57 to 23.6 +/- 2.36 in.) |
Buzzer: Sounds intermittently (ON: 0.2 seconds / OFF: 0.2 seconds) Number of bars displayed: 3 (illuminated) |
60 mm (2.4 in.) diameter pole |
Multi-display and Buzzer
|
Detection Range |
During Judgment |
Obstacle |
|---|---|---|
|
Close-range detection Within approximately 250 +/- 30 mm (9.84 +/- 1.18 in.) |
Buzzer: Sounds continuously Color of bars displayed: Red (illuminated) |
60 mm (2.4 in.) diameter pole |
|
Medium-range detection From approximately 250 +/- 30 mm to 375 +/- 40 mm (9.84 +/- 1.18 mm to 14.76 +/- 1.57 in.) |
Buzzer: Sounds intermittently (ON: 0.1 seconds / OFF: 0.1 seconds) Color of bars displayed: Yellow (blinking) |
60 mm (2.4 in.) diameter pole |
|
Long-range detection From approximately 375 +/- 40 to 600 +/- 60 mm (14.76 +/- 1.57 to 23.6 +/- 2.36 in.) |
Buzzer: Sounds intermittently (ON: 0.2 seconds / OFF: 0.2 seconds) Color of bars displayed: Yellow (blinking) |
60 mm (2.4 in.) diameter pole |
HINT:
Ultrasonic waves are used to measure the detection range; however, the detection range may vary depending on the ambient temperature.
(e) Rear corner sensor display and buzzer operation check
(1) When the rear corner ultrasonic sensor (rear corner sensor) has detected an obstacle, check the display and check that the buzzer sounds.
Operation Condition
|
Ignition Switch |
Intuitive Parking Assist System |
Shift Lever Position |
Vehicle Speed |
|---|---|---|---|
|
ON |
On |
R |
- |
|
*a |
Rear Corner Sensor Display |
*b |
Combination Meter Assembly |
|
*c |
Multi-display |
*d |
w/ Parking Assist Monitor System |
|
*e |
w/ Panoramic View Monitor System |
*f |
When panoramic view screen is display |
|
*g |
Interruption display |
*h |
Close-range Detection |
|
*i |
Medium-range Detection |
*j |
Long-range Detection |
Standard:
Multi-information Display and Buzzer
|
Detection Range |
During Judgment |
Obstacle |
|---|---|---|
|
Close-range detection Within approximately 250 +/- 30 mm (9.84 +/- 1.18 in.) |
Buzzer: Sounds continuously Number of bars displayed: 1 (blinking) |
60 mm (2.4 in.) diameter pole |
|
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: 0.1 seconds / OFF: 0.1 seconds) Number of bars displayed: 2 (illuminated) |
60 mm (2.4 in.) diameter pole |
|
Long-range detection From approximately 375 +/- 40 to 850 +/- 90 mm (14.76 +/- 1.57 to 33.46 +/- 3.54 in.) |
Buzzer: Sounds intermittently (ON: 0.2 seconds / OFF: 0.2 seconds) Number of bars displayed: 3 (illuminated) |
60 mm (2.4 in.) diameter pole |
Multi-display and Buzzer
|
Detection Range |
During Judgment |
Obstacle |
|---|---|---|
|
Close-range detection Within approximately 250 +/- 30 mm (9.84 +/- 1.18 in.) |
Buzzer: Sounds continuously Color of bars displayed: Red (illuminated) |
60 mm (2.4 in.) diameter pole |
|
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: 0.1 seconds / OFF: 0.1 seconds) Color of bars displayed: Yellow (blinking) |
60 mm (2.4 in.) diameter pole |
|
Long-range detection From approximately 375 +/- 40 to 850 +/- 90 mm (14.76 +/- 1.57 to 33.46 +/- 3.54 in.) |
Buzzer: Sounds intermittently (ON: 0.2 seconds / OFF: 0.2 seconds) Color of bars displayed: Yellow (blinking) |
60 mm (2.4 in.) diameter pole |
HINT:
Ultrasonic waves are used to measure the detection range; however, the detection range may vary depending on the ambient temperature.
(f) Rear center sensor display and buzzer operation check
(1) When the rear center ultrasonic sensors (rear center sensor) have detected an obstacle, check the display and check that the buzzer sounds.
Operation Condition
|
Ignition Switch |
Intuitive Parking Assist System |
Shift Lever Position |
Vehicle Speed |
|---|---|---|---|
|
ON |
On |
R |
- |
|
*a |
Rear Center Sensor Display |
*b |
Combination Meter Assembly |
|
*c |
Multi-display Assembly |
*d |
w/ Parking Assist Monitor System |
|
*e |
w/ Panoramic View Monitor System |
*f |
When panoramic view screen is display |
|
*g |
Interruption display |
*h |
Close-range Detection |
|
*i |
Medium-range Detection |
*j |
Long-range Detection |
|
*k |
Longest-range Detection |
- |
- |
Standard:
Multi-information Display and Buzzer
|
Detection Range |
During Detection |
Obstacle |
|---|---|---|
|
Close-range detection Within approximately 350 +/- 40 mm (13.8 +/- 1.57 in.) |
Buzzer: Sounds continuously Number of bars displayed: 1 (blinking) |
60 mm (2.4 in.) diameter pole |
|
Medium-range detection From approximately 350 +/- 40 to 450 +/- 50 mm (13.8 +/- 1.57 to 17.7 +/- 1.97 in.) |
Buzzer: Sounds intermittently (ON: 0.1 seconds / OFF: 0.1 seconds) Number of bars displayed: 2 (illuminated) |
60 mm (2.4 in.) diameter pole |
|
Long-range detection From approximately 450 +/- 50 to 850 +/- 90 mm (17.7 +/- 1.97 to 33.46 +/- 3.54 in.) |
Buzzer: Sounds intermittently (ON: 0.2 seconds / OFF: 0.2 seconds) Number of bars displayed: 3 (illuminated) |
60 mm (2.4 in.) diameter pole |
|
Longest-range detection From approximately 850 +/- 90 to 1800 +/- 180 mm (33.46 +/- 3.54 to 70.87 +/- 7.09 in.) |
Buzzer: Sounds intermittently (ON: 0.2 seconds / OFF: 0.5 seconds) Number of bars displayed: 4 (illuminated) |
Wall |
Multi-display and Buzzer
|
Detection Range |
During Detection |
Obstacle |
|---|---|---|
|
Close-range detection Within approximately 350 +/- 40 mm (13.8 +/- 1.57 in.) |
Buzzer: Sounds continuously Color of bars displayed: Red (illuminated) |
60 mm (2.4 in.) diameter pole |
|
Medium-range detection From approximately 350 +/- 40 to 450 +/- 50 mm (13.8 +/- 1.57 to 17.7 +/- 1.97 in.) |
Buzzer: Sounds intermittently (ON: 0.1 seconds / OFF: 0.1 seconds) Color of bars displayed: Yellow (blinking) |
60 mm (2.4 in.) diameter pole |
|
Long-range detection From approximately 450 +/- 50 to 850 +/- 90 mm (17.7 +/- 1.97 to 33.46 +/- 3.54 in.) |
Buzzer: Sounds intermittently (ON: 0.2 seconds / OFF: 0.2 seconds) Color of bars displayed: Yellow (blinking) |
60 mm (2.4 in.) diameter pole |
|
Longest-range detection From approximately 850 +/- 90 to 1800 +/- 180 mm (33.46 +/- 3.54 to 70.87 +/- 7.09 in.) |
Buzzer: Sounds intermittently (ON: 0.2 seconds / OFF: 0.5 seconds) Color of bars displayed: Yellow (blinking) |
Wall |
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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