Sonar Buzzer Operation

• Sonar control unit receives detection signal from corner/center sensor and sounds buzzer.
• Sonar tone depends on detection position. (Front is approximately 1, 600 Hz and rear is approximately 2, 500 Hz.)
• Sonar buzzer cycle is changed in 4 stages according to the detection distance.

Sonar buzzer cycle 

Fig 1: Warning Buzzer Blinking Pattern

Courtesy of NISSAN NORTH AMERICA, INC.