AV COMM Diagnosis

Displays the communication status between AV control unit (master unit) and each unit.
The error counter displays "OK" if any malfunction was not detected in the past and displays "0" if a malfunction is detected. It increases by 1 if the condition is normal at the next ignition switch ON cycle. The upper limit of the counter is 39.
The error counter is erased if "Reset" is pressed.

Fig 1: Identifying AV Comm Diagnosis System Diagnostic Menu Screen

Courtesy of NISSAN NORTH AMERICA, INC.