Camera Assistance Sonar Function

• Sonar sensors are installed on front and rear bumpers. When an obstacle is detected while rear camera is displayed, a sonar indicator display and buzzer sound notify the driver of the proximity of an obstacle. When an obstacle is detected while rear view camera is not displayed, rear view camera screen is displayed automatically, and then notification is similar as while rear view camera is displayed.
• Approaching distance between bumper and obstacle is displayed in 3 stages according to the color of the sonar indicator in display and blinking cycle of indicator.
• Warning by buzzer sound notifies distance to obstacle according to a 3-stage cycle.
• The sonar control unit outputs the buzzer sound.

System Operation Description 

• Sonar control unit receives shift position signal from TCM and vehicle speed signal from ABS actuator control unit via CAN communication, and controls ON/OFF of sonar system.
• Sonar control unit transmits detection signal and detection distance signal to AV control unit via CAN communication, according to signal from corner sensor depending on conditions shown in the following table. AV control unit displays the applicable sonar indicator.

  Sonar system operation condition			Sonar operation
  Shift position	Vehicle speed	Obstacle	Sonar indicator	Buzzer
  R position	Less than 10 km/h (6 MPH)	Yes	Detection status is displayed	Yes
  P or N position	Less than 10 km/h (6 MPH)	Yes	Detection status is displayed	None
  --	10 km/h (6 MPH) or more	Yes	Not displayed	None

• Sonar control unit is equipped with diagnosis function. Sensor malfunction and sensor harness open circuit can be detected.

Obstacle Detection Distance 

• Sonar control unit changes output of sonar display and warning buzzers in 3 stages according to obstacle detection distance from sensors.
• Sonar control unit changes setting of obstacle detection distance in 4 stages.

Courtesy of NISSAN NORTH AMERICA, INC.

Sonar Indicator Display 

• When AV control unit receives detection signal and detection distance signal from sonar control unit, the AVcontrol unit displays the sonar indicator on display.
• AV control unit changes display color and indicator blinking cycle according to detection distance.

Courtesy of NISSAN NORTH AMERICA, INC.

Warning Buzzer Frequency 

• The warning buzzer cycle changes between 4 levels (for center) and 3 levels (for corner) according to the detection distance.
• The nearest sensor from the detected obstacle determines the buzzer cycle if multiple sensors detect an obstacle simultaneously.

Courtesy of NISSAN NORTH AMERICA, INC.