Can Diag Support Monitor: Notes

WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

OPERATION PROCEDURE

Start the engine.
Turn the audio system off.
While pressing the "PAUSE/MUTE" 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: Identifying Pause Switch
  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: Navigation System Display (Self Diagnosis)
Courtesy of NISSAN MOTOR CO., U.S.A.
Display status of CAN communication.

ERROR COUNTER SPECIFICATION

Item	Content	Error counter
CANCOMM	OK/NG	0-50
CAN_CIR_C1	OK/UNKWN	0-50
CAN_CIR_C2	OK/UNKWN	0-50
CAN_CIR_C3	OK/UNKWN	0-50
CAN_CIR_C4	OK/UNKWN	0-50
CAN_CIR_C5	OK/UNKWN	0-50
CAN_CIR_C6	OK/UNKWN	0-50
CAN_CIR_C7	OK/UNKWN	0-50
CAN_CIR_C8	OK/UNKWN	0-50
CAN_CIR_C9	OK/UNKWN	0-50

Fig 3: Navigation System Display (CAN Diag Support Monitor )

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

If the ignition is turned on and UNKWN is shown on the screen, the value of the counter will be up. (MAX50)
The value of the counter does not change if the ignition changes to OFF. (MAX50)
If the counter shows the value of 50 and UNKWN is shown, the value of 50 will not be changed.