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: Identifying System Diagnostic Menu - Running Self Diagnosis

     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.
   DIAGNOSIS RESULTS TABLE
   
   

   Diagnosis results	Unit	Connection line
   Normal	Green	Green
   Connection malfunction	Gray	Yellow
   Unit malfunction Note	Red	Green
   NOTE: Only the control unit (AV control unit) is displayed in red. Replace AV control unit if "Self-Diagnosis did not run because of a control unit malfunction" is indicated. The symptom is an AV control unit internal error. Refer to EXPLODED VIEW .

   Fig 2: Identifying Trouble Diagnosis Screen Display - Unit Names & Connection Lines

   Courtesy of NISSAN MOTOR CO., U.S.A.
   • 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: Identifying Trouble Diagnosis Screen Display - 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 AV control unit.
• Because the start condition of diagnosis function is switch operated, 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.