PARKING SENSOR OPERATION

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System Operation

Obstruction Detection Area

•  The ultrasonic sensor detection areas are as follows:

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Warning Alarm Sound Pattern

System is initialized

•  When the system is initialized, the buzzer sounds for approx. 0.8 s. When the shift lever is in the R position with the parking brake released, the parking sensor buzzer activates for approx. 0.8 s and switches to obstruction notification status. The driver can verify that the system is operating correctly by the buzzer sound.

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Obstructions are detected

•  The amount of time the buzzer sound is on or off changes as follows according to the distance between the vehicle and the detected obstruction:

Ultrasonic sensor	Zone	Distance from obstruction	ON status	OFF status
Corner sensor	Short distance	0—30 cm {0—11 in}	Continuously	0 ms
	Intermediate distance	25—42.5 cm {9.9—16.7 in}	55—95 ms	55—95 ms
	Long distance	37.5—50 cm {14.8—19.0 in}	120—180 ms	120—180 ms
Back sensor	Short distance	0—40 cm {0—15 in}	Continuously	0 ms
	Intermediate distance	35—55 cm {14—21 in}	55—95 ms	55—95 ms
	Long distance	45—70 cm {18—27 in}	120—180 ms	120—180 ms
	Maximum long distance	60—165 cm {24.0—64.9 in}	120—180 ms	520—780 ms

The detection distance changes when the tow bar switch is on

Ultrasonic sensor error is detected

•  If the parking sensor control module detects an open circuit in the ultrasonic sensor circuit or a frozen ultrasonic sensor, it activates the transistor for the buzzer ON/OFF control to operate the buzzer as shown in the following figure:

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•  If there is a ultrasonic sensor error, the buzzer sound cycle (approx. 0.8 s) is repeated five times. The parking sensor control module flashes the parking sensor switch indicator light while it detects an error.

Customize function

Trailer switch: OFF, Tow-bar switch: OFF

Trailer switch is ON

Tow-bar switch is ON