DTC Description: Fail-Safe

WARNING: This page is about a different car, the 2019 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

When communication with the ABS actuator and electric unit (control unit) is lost, the front sonar system is OFF and rear sonar systems is ON (shift selector in reverse).
When communication with the TCU is lost, front and rear sonar systems are OFF.