Rear Sonar Sensor

WARNING: This page is about a different car, the 2004 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.

With power and ground supplied to the rear sonar sensors, the sonar sensors transmit a 38.4 kHz ultrasonic signal. This signal is reflected back to the sensor by objects large enough and close enough to be detected. The rear sonar sensors measure the time from the transmitted signal to the time the signal is reflected back and sends this information to the sonar control unit.

Power is supplied

to each rear sonar sensor terminal 1
from sonar control unit terminal 16.

Ground is supplied

to each rear sonar sensor terminal 3
from sonar control unit terminal 15.

Signal is supplied

to sonar control unit terminals 9, 10, 11 and 12.
from each rear sonar sensor terminal 2