Self-Diagnosis Mode

1. Start the self-diagnosis function and select "Self-diagnosis".
   • Self-diagnosis subdivision screen is displayed, and the self-diagnosis mode starts.
   • The bar graph visible on the center of the self-diagnosis subdivision screen indicates progress of the trouble diagnosis.
   Fig 1: Trouble Diagnosis Initial Screen Display -- Self-Diagnosis Mode

   Courtesy of NISSAN MOTOR CO., U.S.A.
2. Diagnosis results are displayed after the self-diagnosis is completed. The unit names and the connection lines are color-coded according to the diagnostic results.

Fig 2: Multi AV System Screen Display - System Diagnostic Menu

Courtesy of NISSAN MOTOR CO., U.S.A.

Diagnosis results Unit Connection line 

Normal Green Green 

Connection malfunction Gray Yellow 

Unit malfunction Note Red Green 

• If multiple errors occur at the same time for a single unit, the screen switch colors are determined according to the following order of priority: red > gray.
• The comments of the self-diagnosis results can be viewed with a component in the diagnosis result screen.

Fig 3: Trouble Diagnosis Screen Display Of - Error Information

Courtesy of NISSAN MOTOR CO., U.S.A.

Detection range of self-diagnosis mode 

• The self-diagnosis mode allows the technician to diagnose the connection in the communication line between AV control unit and each unit and the internal operation of the AV control unit.
• Because the start condition of diagnosis function is a switch operation, the on board diagnosis function cannot be started up if any malfunction is detected in the communication circuit between AV control unit and multifunction switch.

Fig 4: AV Control Unit Circuit Diagram

Courtesy of NISSAN MOTOR CO., U.S.A.