Display Control Unit

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

Display control unit is installed at the center of the instrument panel.

Courtesy of NISSAN NORTH AMERICA, INC.
It is connected to the TCU with a USB harness and signal circuits necessary for telematics function.
Switch operation signals used for the Telematics system are transmitted to TCU via USB communication from the display control unit.