Parking And Back-Up Sensor System Description - Control/Function (2017)
The parking and back-up sensor control unit receives the transmission range switch signal via the B-CAN and detects whether the vehicle is moving forward, backward, or is parked.
The sensors send out ultrasonic waves, receive waves reflected by an obstacle, determine the distance, and use the buzzer and the multi-information display (MID) to tell the driver that an obstacle is near.
- The front corner sensors work any time the shift lever is shifted out of P position until the vehicle reaches about 9 mph (15 km/h). They do not come back on until about 5 mph (8 km/h) or less.
- The rear corner and rear center sensors are only activated in the R position.
- The parking and back-up sensor system is in active with its switch ON.
- The system check is performed each time the parking and back-up sensor switch is turned on with the vehicle in the ON mode.
- The sensors must be free of debris, snow, and ice to work correctly.
Sounding Pattern
The alarm sounding pattern and display of the obstacle detection location are performed by the obstacle detection indication requests and alarm sounding requests from the parking and back up sensor control unit.
As shown in the following table, the time of sounding the buzzer is changed depending on the detection distance.
Front
Rear