PARKING SENSOR SYSTEMSM2760523
PARKING SENSOR SYSTEM

id092200024200


Outline

• The parking sensor system detects obstructions in the blind spot (vehicle front/rear/corners) to a wide extent using ultrasonic sensors and notifies the driver of the obstructions using the indicator and buzzer.
Warning
• The parking sensor system is a device to assist the driver in confirming safety. It is not a substitute for the driver and cannot guarantee 100 % safety. Do not rely completely on the parking sensor system and drive while confirming the safety of the surrounding area visually.
• The following circumstances may obstruct the ultrasonic sensor resulting in an accident:
― Ice, snow, or dirt is adhering to ultrasonic sensor
― Ultrasonic sensor is covered by foreign matter (such as bumper stickers)
― Shock is applied to bumper in accident and ultrasonic sensor installation angle is deviated
― Ultrasonic sensor is exposed to heavy rain or water-spray from road
― There is another device emitting ultrasonic waves (such as ultrasonic sensor of another vehicle) near ultrasonic sensor
• The parking sensor system may not operate normally under the following conditions:
― Ice, snow, or dirt is adhering to ultrasonic sensor
― Ultrasonic sensor is frozen
― Vehicle is in tilted position
― Vehicle is parked on steep incline or there is difference in height between lines
― Obstructions have approached too close to ultrasonic sensor
• The ultrasonic sensor may not detect the following items:
― Thin objects such as wire or rope
― Items which absorb ultrasonic waves easily, such as cotton or snow
― Angular-shaped objects
― Tall objects protruding at the top
― Short objects
― Objects located immediately below bumper, such as wheel stoppers
• The warning alert may activate while driving near parked vehicles/guardrails/walls on a narrow road, or while driving on a slope, gravel road, or grass field. This is a normal effect caused by the system's response to ultrasonic waves, and does not indicate a malfunction.

Function

• The ultrasonic sensor located on the rear bumper detects an obstruction and the parking sensor control module/parking assist unit informs the driver of the distance between the vehicle and the obstruction using the parking sensor buzzer.

Ultrasonic sensor malfunction detection function

• If the parking sensor control module/parking assist unit detects that there is a malfunction in the ultrasonic sensor circuit, the sound is activated in the following pattern and flashes the indicator light (with front ultrasonic sensor).
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Volume adjustment function

• The volume of the parking sensor buzzer can be adjusted. Refer to the Workshop Manual for the adjustment procedure.


Parking sensor system activation switching function

• The parking sensor system can be switched between automatic/manual. Refer to the workshop manual for the switching procedure.


Structural View

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System Wiring Diagram

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Operation


Operation condition

• When all of the following conditions are met, the parking sensor system operates and the parking sensor buzzer activates for approx. 0.8 s.
Without front ultrasonic sensor
― Ignition switch: ON (engine on)
― Selector lever (ATX)/shift lever (MTX): R position (ATX)/reverse gear (MTX)
With front ultrasonic sensor (when parking sensor system activation is only set to automatic)
― Ignition switch: ON (engine on)
― Vehicle speed: less than 10 km/h {6.2 mph}
― Selector lever (ATX)/shift lever (MTX): R position (ATX)/reverse gear (MTX)
With front ultrasonic sensor (when parking sensor system activation is only set to manual)
― Ignition switch: ON (engine on)
― Parking sensor switch: ON
• If the parking sensor system operates, the ultrasonic sensor starts to detect obstructions. For the ultrasonic sensor which is operating, refer to the following table.

Without front ultrasonic sensor

×: Operates, —: Does not operate

Vehicle condition

Ultrasonic sensor

Selector lever (ATX)/

Shift lever (MTX)

Vehicle speed

Rear corner ultrasonic sensor

Rear ultrasonic sensor

Except R position (ATX)/reverse gear (MTX)
Less than 10 km/h {6.2 mph}
10 km/h {6.2 mph} or more
R position (ATX)/reverse gear (MTX)
Less than 10 km/h {6.2 mph}
×
×
10 km/h {6.2 mph} or more
×

With front ultrasonic sensor

×: Operates, —: Does not operate

Vehicle condition

Ultrasonic sensor

Selector lever (ATX)/

Shift lever (MTX)

Vehicle speed

Front corner ultrasonic sensor

Front ultrasonic sensor

Rear corner ultrasonic sensor

Rear ultrasonic sensor

Except R position (ATX)/reverse gear (MTX)
Less than 10 km/h {6.2 mph}
×
×
10 km/h {6.2 mph} or more
R position (ATX)/reverse gear (MTX)
Less than 10 km/h {6.2 mph}
×
×
×
10 km/h {6.2 mph} or more
×


Obstruction Detection Area

• Each ultrasonic sensor detects obstructions in the following areas.
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Parking sensor buzzer sound pattern

Obstructions detected
• The changes in the amount of time the parking sensor buzzer activates are as follows:

Ultrasonic sensor

Zone

Distance from obstruction

Parking sensor buzzer sound pattern

Front/rear corner ultrasonic sensor
Short distance
Approx. 0.0—25 cm {0.0—9.8 in}
Intermediate distance
Approx. 25—38 cm {9.9—14.0 in}
Long distance
Approx. 38—55 cm {15—21 in}
Front ultrasonic sensor
Short distance
Approx. 0—40 cm {0—15 in}
Intermediate distance
Approx. 40—50 cm {16—19 in}
Long distance
Approx. 50—65 cm {20—25 in}
Maximum long distance
Approx. 65—110 cm {26.0—43.3 in}
Rear ultrasonic sensor
Short distance
Approx. 0—35 cm {0—13 in}
Intermediate distance
Approx. 35—45 cm {14—17 in}
Long distance
Approx. 45—60 cm {18—23 in}
Maximum long distance
Approx. 60—150 cm {24.0—59.0 in}


Fail-safe

• Not applicable