TOYOTA PARKING ASSIST-SENSOR SYSTEM(except Sedan) OPERATION CHECK
MALFUNCTION DISPLAY (MULTI-INFORMATION DISPLAY)
Open circuit indication
If there is an open circuit between the ultrasonic sensor and the clearance warning ECU assembly or a sensor is malfunctioning, the malfunction is displayed as shown in the illustration.
Tip:When a malfunction is detected, bars for all detection areas shown in the illustration blink.
If a sensor has an open circuit, check for DTCs and troubleshoot according to each inspection procedure.
MALFUNCTION DISPLAY (MULTI-DISPLAY)
Open circuit indication
If there is an open circuit between the ultrasonic sensor and the clearance warning ECU assembly or a sensor is malfunctioning, the malfunction is displayed as shown in the illustration.
*a
When the shift lever is not in R*1
When the shift lever is not in P or R*2
*b
When the shift lever is in R
*1: for EA66, EC60, EC61, EC6A or EC69
*2: for K313
Tip:When a malfunction is detected, bars for all detection areas shown in the illustration blink.
If a sensor has an open circuit, check for DTCs and troubleshoot according to each inspection procedure.
DETECTION RANGE MEASUREMENT AND DISPLAY INSPECTION
Note:While performing the following measurement and inspection, make sure to depress the brake pedal to prevent the vehicle from moving. (The parking brake should be released.) (for EA66, EC60, EC61, EC6A, or EC69)
The following measurement and inspection will be performed with the shift lever in a position other than P. Be sure to apply the parking brake and depress the brake pedal firmly to prevent the vehicle from moving. (for K313)
Turn the ignition switch to ON.
Turn the TOYOTA parking assist-sensor system on.
Detection range measurement:
When measuring the detection range of the front sonar, move the shift lever to any position other than P. (for K313)
When measuring the detection range of the rear sonar, move the shift lever to R.
Move a 60 mm (2.36 in.) diameter pole near each sensor to measure its detection range.
Note:These detection ranges are applicable when positioning the 60 mm (2.36 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).
Tip:Have an assistant move the pole.
Figure 1. Corner Sonar (for Hatchback) 
*a
Approx. 500 mm (19.7 in.)
*b
Approx. 650 mm (25.6 in.)
*c
Approx. 550 mm (21.7 in.)
*d
Approx. 100 mm (3.9 in.)
*e
A
*f
B
Figure 2. Corner Sonar (for Wagon) 
*a
Approx. 500 mm (19.7 in.)
*b
Approx. 650 mm (25.6 in.)
*c
Approx. 550 mm (21.7 in.)
*d
Approx. 100 mm (3.9 in.)
*e
A
*f
B
Note:The ultrasonic sensor side view detection range (hatched area labeled (B)) represents the cross section of the top view detection range (A). The hatched area (A) does not represent the entire side view detection range.
Figure 3. Center Sonar (for Hatchback) 
*a
Approx. 1000 mm (39.4 in.)
*b
Approx. 1500 mm (59.1 in.)
*c
Approx. 650 mm (25.6 in.)
*d
Approx. 100 mm (3.9 in.)
*e
Wall
-
-
Figure 4. Center Sonar (for Wagon) 
*a
Approx. 1000 mm (39.4 in.)
*b
Approx. 1500 mm (59.1 in.)
*c
Approx. 650 mm (25.6 in.)
*d
Approx. 100 mm (3.9 in.)
*e
Wall
-
-
Figure 5. Front Side Sonar (for Hatchback) 
*a
Approx. 250 mm (9.8 in.)
*b
Approx. 400 mm (15.7 in.)
*c
Approx. 100 mm (3.9 in.)
-
-
Figure 6. Front Side Sonar (for Wagon) 
*a
Approx. 250 mm (9.8 in.)
*b
Approx. 400 mm (15.7 in.)
*c
Approx. 100 mm (3.9 in.)
-
-
Front side sonar display and buzzer operation check
When the No. 2 ultrasonic sensors (front side LH/RH) have detected an obstacle, check the displays and check that the No. 1 clearance warning buzzer sounds.
Table 1. Operation Condition Ignition Switch
TOYOTA Parking Assist-sensor System
Shift Lever Position
Vehicle Speed
Parking Brake
ON
On
When the shift lever is not in R*1
When the shift lever is not in P or R*2
Less than 10 km/h (6 mph)
Released*1
ON
On
R
-
-
*1: for EA66, EC60, EC61, EC6A or EC69
*2: for K313
*a
Multi-information Display
*b
Multi-display
*c
Example (Front Side Sonar)
*d
Close-range Detection
*e
When the shift lever is not in R*1
When the shift lever is not in P or R*2
*f
When the shift lever is in R
*1: for EA66, EC60, EC61, EC6A or EC69
*2: for K313
Standard
Table 2. Multi-information Display and Buzzer Detection Range
During Judgment
Obstacle
Close-range detection
Within approx. 250 +/- 25 mm (9.8 +/- 1.0 in.)
Buzzer: Sounds continuously
Number of bars displayed: 1 (blinking)
60 mm (2.36 in.) diameter pole
Table 3. Multi-display and Buzzer Detection Range
During Judgment
Obstacle
Close-range detection
Within approx. 250 +/- 25 mm (9.8 +/- 1.0 in.)
Buzzer: Sounds continuously
Number of bars displayed: 1 (blinking)
60 mm (2.36 in.) diameter pole
Tip:Ultrasonic waves are used to measure the detection range; however, the detection range may vary depending on the ambient temperature.
Front corner sonar display and buzzer operation check
When the No. 1 ultrasonic sensors (front corner LH/RH) have detected an obstacle, check the displays and check that the No. 1 clearance warning buzzer sounds.
Table 4. Operation Condition Ignition Switch
TOYOTA Parking Assist-sensor System
Shift Lever Position
Vehicle Speed
Parking Brake
ON
On
When the shift lever is not in R*1
When the shift lever is not in P or R*2
Less than 10 km/h (6 mph)
Released*1
ON
On
R
-
-
*1: for EA66, EC60, EC61, EC6A or EC69
*2: for K313
*a
Multi-information Display
*b
Multi-display
*c
Example (Front Corner Sonar)
*d
Close-range Detection
*e
Medium-range Detection
*f
Long-range Detection
*g
When the shift lever is not in R*1
When the shift lever is not in P or R*2
*h
When the shift lever is in R
*1: for EA66, EC60, EC61, EC6A or EC69
*2: for K313
Standard
Table 5. Multi-information Display and Buzzer Detection Range
During Judgment
Obstacle
Close-range detection
Within approx. 250 +/- 25 mm (9.8 +/- 1.0 in.)
Buzzer: Sounds continuously
Number of bars displayed: 1 (blinking)
60 mm (2.36 in.) diameter pole
Medium-range detection
From approx. 250 +/- 25 to 375 +/- 37.5 mm (9.8 +/- 1.0 to 14.8 +/- 1.5 in.)
Buzzer: Sounds intermittently (ON: 0.075 sec. / OFF: 0.075 sec.)
Number of bars displayed: 2 (illuminated)
60 mm (2.36 in.) diameter pole
Long-range detection
From approx. 375 +/- 37.5 to 500 +/- 50 mm (14.8 +/- 1.5 to 19.7 +/- 2.0 in.)
Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.15 sec.)
Number of bars displayed: 3 (illuminated)
60 mm (2.36 in.) diameter pole
Table 6. Multi-display and Buzzer Detection Range
During Judgment
Obstacle
Close-range detection
Within approx. 250 +/- 25 mm (9.8 +/- 1.0 in.)
Buzzer: Sounds continuously
Number of bars displayed: 1 (blinking)
60 mm (2.36 in.) diameter pole
Medium-range detection
From approx. 250 +/- 25 to 375 +/- 37.5 mm (9.8 +/- 1.0 to 14.8 +/- 1.5 in.)
Buzzer: Sounds intermittently (ON: 0.075 s. / OFF: 0.075 s.)
Number of bars displayed: 2 (illuminated)
60 mm (2.36 in.) diameter pole
Long-range detection
From approx. 375 +/- 37.5 to 500 +/- 50 mm (14.8 +/- 1.5 to 19.7 +/- 2.0 in.)
Buzzer: Sounds intermittently (ON: 0.15 s. / OFF: 0.15 s.)
Number of bars displayed: 3 (illuminated)
60 mm (2.36 in.) diameter pole
Tip:Ultrasonic waves are used to measure the detection range; however, the detection range may vary depending on the ambient temperature.
Front center sonar display and buzzer operation check
When the No. 1 ultrasonic sensors (front center LH/RH) have detected an obstacle, check the display and check that the No. 1 clearance warning buzzer sounds.
Table 7. Operation Condition Ignition Switch
TOYOTA Parking Assist-sensor System
Shift Lever Position
Vehicle Speed
Parking Brake
ON
On
When the shift lever is not in R*1
When the shift lever is not in P or R*2
Less than 10 km/h (6 mph)
Released*1
ON
On
R
-
-
*1: for EA66, EC60, EC61, EC6A or EC69
*2: for K313
*a
Multi-information Display
*b
Multi-display
*c
Example (Front Center Sonar)
*d
Close-range Detection
*e
Medium-range Detection
*f
Long-range Detection
*g
Longest-range Detection
-
-
Standard
Table 8. Multi-information Display and Buzzer Detection Range
During Detection
Obstacle
Close-range detection
Within approx. 300 +/- 30 mm (11.8 +/- 1.2 in.)*1
Within approx. 250 +/- 25 mm (9.8 +/- 1.0 in.)*2
Buzzer: Sounds continuously
Number of bars displayed: 1 (blinking)
60 mm (2.36 in.) diameter pole
Medium-range detection
From approx. 300 +/- 30 to 425 +/- 42.5 mm (11.8 +/- 1.2 to 16.7 +/- 1.7 in.)*1
From approx. 250 +/- 25 to 425 +/- 42.5 mm (9.8 +/- 1.0 to 16.7 +/- 1.7 in.)*2
Buzzer: Sounds intermittently (ON: 0.075 sec. / OFF: 0.075 sec.)
Number of bars displayed: 2 (illuminated)
60 mm (2.36 in.) diameter pole
Long-range detection
From approx. 425 +/- 42.5 to 550 +/- 55 mm (16.7 +/- 1.7 to 21.7 +/- 2.2 in.)
Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.15 sec.)
Number of bars displayed: 3 (illuminated)
60 mm (2.36 in.) diameter pole
Longest-range detection
From approx. 550 +/- 55 to 1000 +/- 100 mm (21.7 +/- 2.2 to 39.4 +/- 3.9 in.)
Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.65 sec.)
Number of bars displayed: 4 (illuminated)
Wall
Table 9. Multi-display and Buzzer Detection Range
During Detection
Obstacle
Close-range detection
Within approx. 300 +/- 30 mm (11.8 +/- 1.2 in.)*1
Within approx. 250 +/- 25 mm (9.8 +/- 1.0 in.)*2
Buzzer: Sounds continuously
Number of bars displayed: 1 (blinking)
60 mm (2.36 in.) diameter pole
Medium-range detection
From approx. 300 +/- 30 to 425 +/- 42.5 mm (11.8 +/- 1.2 to 16.7 +/- 1.7 in.)*1
From approx. 250 +/- 25 to 425 +/- 42.5 mm (9.8 +/- 1.0 to 16.7 +/- 1.7 in.)*2
Buzzer: Sounds intermittently (ON: 0.075 s. / OFF: 0.075 s.)
Number of bars displayed: 2 (illuminated)
60 mm (2.36 in.) diameter pole
Long-range detection
From approx. 425 +/- 42.5 to 550 +/- 55 mm (16.7 +/- 1.7 to 21.7 +/- 2.2 in.)
Buzzer: Sounds intermittently (ON: 0.15 s. / OFF: 0.15 s.)
Number of bars displayed: 3 (illuminated)
60 mm (2.36 in.) diameter pole
Longest-range detection
From approx. 550 +/- 55 to 1000 +/- 100 mm (21.7 +/- 2.2 to 39.4 +/- 3.9 in.)
Buzzer: Sounds intermittently (ON: 0.15 s. / OFF: 0.65 s.)
Number of bars displayed: 4 (illuminated)
Wall
Tip:Ultrasonic waves are used to measure the detection range; however, the detection range may vary depending on the ambient temperature.
*1: While the simple intelligent parking assist system is not operating
*2: While the simple intelligent parking assist system is operating
Rear corner sonar display and buzzer operation check
When the No. 1 ultrasonic sensors (rear corner LH/RH) have detected an obstacle, check the display and check that the No. 2 clearance warning buzzer sounds.
Table 10. Operation Condition Ignition Switch
TOYOTA Parking Assist-sensor System
Shift Lever Position
Vehicle Speed
Parking Brake
ON
On
R
-
-
*a
Multi-information Display
*b
Multi-display
*c
Example (Rear Corner Sonar)
*d
Close-range Detection
*e
Medium-range Detection
*f
Long-range Detection
Standard
Table 11. Multi-information Display and Buzzer Detection Range
During Judgment
Obstacle
Close-range detection
Within approx. 250 +/- 25 mm (9.8 +/- 1.0 in.)
Buzzer: Sounds continuously
Number of bars displayed: 1 (blinking)
60 mm (2.36 in.) diameter pole
Medium-range detection
From approx. 250 +/- 25 to 375 +/- 37.5 mm (9.8 +/- 1.0 to 14.8 +/- 1.5 in.)
Buzzer: Sounds intermittently (ON: 0.075 sec. / OFF: 0.075 sec.)
Number of bars displayed: 2 (illuminated)
60 mm (2.36 in.) diameter pole
Long-range detection
From approx. 375 +/- 37.5 to 500 +/- 50 mm (14.8 +/- 1.5 to 19.7 +/- 2.0 in.)
Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.15 sec.)
Number of bars displayed: 3 (illuminated)
60 mm (2.36 in.) diameter pole
Table 12. Multi-display and Buzzer Detection Range
During Judgment
Obstacle
Close-range detection
Within approx. 250 +/- 25 mm (9.8 +/- 1.0 in.)
Buzzer: Sounds continuously
Color of bars displayed: Red (blinking)
60 mm (2.36 in.) diameter pole
Medium-range detection
From approx. 250 +/- 25 to 375 +/- 37.5 mm (9.8 +/- 1.0 to 14.8 +/- 1.5 in.)
Buzzer: Sounds intermittently (ON: 0.075 s. / OFF: 0.075 s.)
Color of bars displayed: Yellow (illuminated)
60 mm (2.36 in.) diameter pole
Long-range detection
From approx. 375 +/- 37.5 to 500 +/- 50 mm (14.8 +/- 1.5 to 19.7 +/- 2.0 in.)
Buzzer: Sounds intermittently (ON: 0.15 s. / OFF: 0.15 s.)
Color of bars displayed: Yellow (illuminated)
60 mm (2.36 in.) diameter pole
Tip:Ultrasonic waves are used to measure the detection range; however, the detection range may vary depending on the ambient temperature.
Rear center sonar display and buzzer operation check
When the No. 1*1 or No. 3*2 ultrasonic sensors (rear center LH/RH) have detected an obstacle, check the display and check that the No. 2 clearance warning buzzer sounds.
*1: for Hatchback
*2: for Wagon
Table 13. Operation Condition Ignition Switch
TOYOTA Parking Assist-sensor System
Shift Lever Position
Vehicle Speed
Parking Brake
ON
On
R
-
-
*a
Multi-information Display
*b
Multi-display
*c
Example (Rear Center Sonar)
*d
Close-range Detection
*e
Medium-range Detection
*f
Long-range Detection
*g
Longest-range Detection
-
-
Standard
Table 14. Multi-information Display and Buzzer Detection Range
During Detection
Obstacle
Close-range detection
Within approx. 300 +/- 30 mm (11.8 +/- 1.2 in.)*1
Within approx. 250 +/- 25 mm (9.8 +/- 1.0 in.)*2
Buzzer: Sounds continuously
Number of bars displayed: 1 (blinking)
60 mm (2.36 in.) diameter pole
Medium-range detection
From approx. 300 +/- 30 to 425 +/- 42.5 mm (11.8 +/- 1.2 to 16.7 +/- 1.7 in.)*1
From approx. 250 +/- 25 to 425 +/- 42.5 mm (9.8 +/- 1.0 to 16.7 +/- 1.7 in.)*2
Buzzer: Sounds intermittently (ON: 0.075 sec. / OFF: 0.075 sec.)
Number of bars displayed: 2 (illuminated)
60 mm (2.36 in.) diameter pole
Long-range detection
From approx. 425 +/- 42.5 to 550 +/- 55 mm (16.7 +/- 1.7 to 21.7 +/- 2.2 in.)
Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.15 sec.)
Number of bars displayed: 3 (illuminated)
60 mm (2.36 in.) diameter pole
Longest-range detection
From approx. 550 +/- 55 to 1500 +/- 150 mm (21.7 +/- 2.2 to 59.1 +/- 5.9 in.)
Buzzer: Sounds intermittently (ON: 0.15 sec. / OFF: 0.65 sec.)
Number of bars displayed: 4 (illuminated)
Wall
Table 15. Multi-display and Buzzer Detection Range
During Detection
Obstacle
Close-range detection
Within approx. 300 +/- 30 mm (11.8 +/- 1.2 in.)*1
Within approx. 250 +/- 25 mm (9.8 +/- 1.0 in.)*2
Buzzer: Sounds continuously
Color of bars displayed: Red (blinking)
60 mm (2.36 in.) diameter pole
Medium-range detection
From approx. 300 +/- 30 to 425 +/- 42.5 mm (11.8 +/- 1.2 to 16.7 +/- 1.7 in.)*1
From approx. 250 +/- 25 to 425 +/- 42.5 mm (9.8 +/- 1.0 to 16.7 +/- 1.7 in.)*2
Buzzer: Sounds intermittently (ON: 0.075 s. / OFF: 0.075 s.)
Color of bars displayed: Yellow (illuminated)
60 mm (2.36 in.) diameter pole
Long-range detection
From approx. 425 +/- 42.5 to 550 +/- 55 mm (16.7 +/- 1.7 to 21.7 +/- 2.2 in.)
Buzzer: Sounds intermittently (ON: 0.15 s. / OFF: 0.15 s.)
Color of bars displayed: Yellow (illuminated)
60 mm (2.36 in.) diameter pole
Longest-range detection
From approx. 550 +/- 55 to 1500 +/- 150 mm (21.7 +/- 2.2 to 59.1 +/- 5.9 in.)
Buzzer: Sounds intermittently (ON: 0.15 s. / OFF: 0.65 s.)
Color of bars displayed: Yellow (illuminated)
Wall
Tip:Ultrasonic waves are used to measure the detection range; however, the detection range may vary depending on the ambient temperature.
*1: While the simple intelligent parking assist system is not operating
*2: While the simple intelligent parking assist system is operating