Example of Filling in Check Sheet When Initial Conditions Are Reproduced

Fig 1: Identifying Example Of Filling In Check Sheet When Initial Conditions

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

1. Put a check mark to "No indication" if some of unit names listed on the column of diagnosis system selection screen of a check sheet table are not displayed on "SELECT SYSTEM" screen attached to the check sheet.
   NOTE: Put a check mark to "No indication" of AUTO DRIVE POS. because AUTO DRIVE POS. is not displayed on "SELECT SYSTEM" screen.
2. Confirm the unit name that "UNKWN" is displayed from the copy of "CAN DIAG SUPPORT MNTR" screen of "ENGINE" attached to the check sheet, and then put a check mark to the check sheet table.
   NOTE: In "CAN DIAG SUPPORT MNTR" screen, "UNKWN" is displayed on "VDC/TCS/ABS", "METER/M&A", "BCM/SEC" and "IPDM E/R". Put a check mark to it.
3. Confirm the unit name that "UNKWN" is displayed on the copy of "CAN DIAG SUPPORT MNTR" screen of "A/T" as well as "ENGINE". And then, put a check mark to the check sheet table.
   NOTE:

   • For "A/T", "UNKWN" is displayed on "VDC/TCS/ABS", "METER/M&A", "ICC/e4WD" and "AWD/4WD". But put a check mark to "VDC/TCS/ABS" and "METER/M&A" because "UNKWN" is listed on the column of reception diagnosis of the check sheet table.
   Fig 2: Identifying Check Sheet Table

   Courtesy of NISSAN MOTOR CO., U.S.A.
4. Display control unit reads the CAN diagnosis support monitor check sheet (B) "CAN COMMUNICATION LINE CHECK " transferred from the display screen (A). The transferred CAN diagnosis support monitor check sheet is copied to the Check sheet, and conversed according to the Display control unit Translation Sheet (C). And then put a check mark to the check sheet table.
   NOTE: In the CAN diagnosis support monitor check sheet (B), check marks are put to "CAN CIRC 3", "CAN CIRC 6", "CAN CIRC 8" and "CAN CIRC 9". But, in the column of the check sheet table indication in Display control unit Translation Sheet (C), "ECM" is listed only for "CAN CIRC 3". Therefore, put a check mark to "ECM" because "UNKWN" is listed on the column of reception diagnosis of the check sheet table.
   Fig 3: Identifying Check Sheet Table

   Courtesy of NISSAN MOTOR CO., U.S.A.
5. Confirm the unit name that "UNKWN" is displayed on the copy of "CAN DIAG SUPPORT MNTR" screen of "BCM", "HVAC", "ABS" and "IPDM E/R" as well as "ENGINE". And then, put a check mark to the check sheet table.
   NOTE:

   • For "BCM", "UNKWN" is displayed on "ECM". Put a check mark to it.
   • For "HVAC", "UNKWN" is displayed on "ECM". Put a check mark to it.
   • For "ABS", "UNKWN" is displayed on "ECM", "TCM", "METER/M&A", "ICC" and "AWD/4WD". But put a check mark to "ECM" and "TCM" because "UNKWN" is listed on the column of reception diagnosis of the check sheet table.
   • For "IPDM E/R", "UNKWN" is displayed on "ECM". Put a check mark to it.
   CAUTION: "ALL MODE AWD/4WD" puts a check mark on the check sheet when "Present" is "UNKWN" and "Past" is "0".
   Fig 4: Identifying Check Sheet Table

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 5: Identifying Check Sheet Table

   Courtesy of NISSAN MOTOR CO., U.S.A.
   NOTE: There is a case that some of "CAN DIAG SUPPORT MNTR" and "SELF-DIAG RESULTS" are not needed for diagnosis. In the case, "UNKWN" and "CAN COMM CIRCUIT [U1000]" in "Check sheet results (example)" change to "-". Then, ignore check marks on the check sheet table.
6. Perform system diagnosis for possible causes identified.
7. Perform diagnosis again after inspection and repair. Make sure that repair is completely performed, and then end the procedure.

Start CAN system trouble diagnosis if this procedure can be confirmed. Refer to "CAN COMMUNICATION UNIT ".