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Home >> Infiniti >> 2004 >> QX56 RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1235 (Audio Visual, Navigation & Telephone System) >> Navigation System >> CAN Communication Line Check

CAN Communication Line Check

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK MONITOR DESCRIPTION 
    1. Start display control unit self-diagnosis. Refer to "SELF-DIAGNOSIS MODE (DCU)  ".
    2. Select "CAN DIAG SUPPORT MONITOR". Refer to "CAN DIAG SUPPORT MONITOR  ".
      Fig 1: CAN Communication Line Check - Item, Content And Error Counter Reference Chart
      G02387227Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 2: Identifying CAN Diag Support Monitor
      G02387228Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Record each item display description (OK/NG/UKNWN) displayed on the following CAN DIAG SUPPORT MONITOR Check Sheet.

      CAN DIAG SUPPORT MONITOR Check Sheet 

      CAN DIAG SUPPORT MONITOR - CHECK SHEET

      Diagnosis item Screen display Diagnosis item Screen display
      CAN_COMM OK NG CAN CIRC 5 OK UNKWN
      CAN_CIRC_1 OK UNKWN CAN_CIRC_6 OK UNKWN
      CAN_CIRC_2 OK UNKWN CAN_CIRC_7 OK UNKWN
      CAN_CIRC_3 OK UNKWN CAN_CIRC_8 OK UNKWN
      CAN_CIRC_4 OK UNKWN CAN_CIRC_9 OK UNKWN
    • : After filling in CAN DIAG SUPPORT MONITOR Check Sheet, GO TO "CAN COMMUNICATION ".