Fail-Safe (Sonar Control Unit)

WARNING: This page is about a different car, the 2018 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

Display contents of CONSULT	Fault	Fail-safe operation
U1000: CAN COMM CIRCUIT	Loss of communication with ABS actuator and electric unit (control unit)	Sonar system is ON (selector lever in reverse)
B2720: Rear left side external sensor	Open circuit/short circuit to ground Short circuit to voltage Sensor element malfunction	Obstacle detection of the sensor in error is stopped Audible warning of all sensors is stopped Sonar buzzer sounds for 3 seconds
B2721: Rear left side internal sensor
B2722: Rear right side internal sensor
B2723: Rear right side external sensor
B2724: ECU	Configuration check	Sonar buzzer sounds for 3 seconds