Operation Procedure

Start the engine.
Turn the audio system off.
While pressing the "MUTE/II " button, turn the volume control dial clockwise or counterclockwise for 30 clicks or more. (When the self-diagnosis mode is started, a short beep will be heard.)
- Shifting from current screen to previous screen is performed by pressing "PREV" button.
Fig 1: Turning Audio System Off
Courtesy of NISSAN MOTOR CO., U.S.A.
The initial trouble diagnosis screen will be shown, and items "Self-Diagnosis (DCU)", "Self-Diagnosis (NAVI)", "Confirmation/Adjustment" and "CAN DIAG SUPPORT MONITOR" will become selective.
Select "CAN DIAG SUPPORT MONITOR".

Fig 2: Identifying Display - Self Diagnosis
Courtesy of NISSAN MOTOR CO., U.S.A.

Display status of CAN communication.

DISPLAY STATUS OF CAN COMMUNICATION

Item	Content	Error counter (Reference value)
CANCOMM	OK/NG	0-50
CAN_CIRC_1	OK/UNKWN	0-50
CAN_CIRC_2	OK/UNKWN	0-50
CAN_CIRC_3	OK/UNKWN	0-50
CAN_CIRC_4	OK/UNKWN	0-50
CAN_CIRC_5	OK/UNKWN	0-50
CAN_CIRC_6	OK/UNKWN	0-50
CAN_CIRC_7	OK/UNKWN	0-50
CAN_CIRC_8	OK/UNKWN	0-50
CAN_CIRC_9	OK/UNKWN	0-50

NOTE: Counter shows the status of CAN communication

Fig 3: Identifying Display - Can Diag Support Monitor

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