INFINITI QX56 2004 Factory Service Manual

LAN-18
[CAN]
CAN SYSTEM (TYPE 1)
Revision: August 20072004 QX56
Wiring Diagram - CAN -UKS000P3
BKWA0079E

CAN SYSTEM (TYPE 1)
LAN-19
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: August 20072004 QX56
BKWA0080E

LAN-20
[CAN]
CAN SYSTEM (TYPE 1)
Revision: August 20072004 QX56
BKWA0081E

CAN SYSTEM (TYPE 1)
LAN-21
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: August 20072004 QX56
Work FlowUKS0018G
1. When there are no indications of “AUTO DRIVE POS.”, “BCM” or “IPDM E/R” on “SELECT SYSTEM” dis-
play of CONSULT-II, print the “SELECT SYSTEM”.
2. Print all the data of “SELF-DIAG RESULTS” for “ENGINE”, “A/T”, “AUTO DRIVE POS.”, “BCM”, “ABS”
and “IPDM E/R” displayed on CONSULT-II.
3. Print all the data of “CAN DIAG SUPPORT MNTR” for “ENGINE”, “A/T”, “AUTO DRIVE POS.”, “BCM”,
“ABS” and “IPDM E/R” displayed on CONSULT-II.
4. Attach the printed sheet of “SELECT SYSTEM”, “SELF-DIAG RESULTS” and “CAN DIAG SUPPORT
MNTR” onto the check sheet. Refer to LAN-23, "
CHECK SHEET" .
5. Based on the indications of “SELECT SYSTEM” and the results of “CAN DIAG SUPPORT MNTR”, put
marks “v” onto the items with “No indication”, “NG” or “UNKWN” in the check sheet table. Refer to LAN-23,
"CHECK SHEET" .
NOTE:

If “NG” is displayed on “INITIAL DIAG (Initial diagnosis)” as “CAN DIAG SUPPORT MNTR” for the diag-
nosed control unit, replace the control unit.

The “CAN DIAG SUPPORT MNTR” items, which are not in check sheet table, are not related to diag-
nostic procedure on service manual.
So it is not necessary to check the status of the “CAN DIAG SUPPORT MNTR” items not in check
sheet table.
6. Check CAN communication line of the navigation system. Refer to AV-131, "
CAN Communication Line
Check" .
7. Attach the CAN DIAG SUPPORT MONITOR check sheet onto the check sheet. Refer to LAN-23,
"CHECK SHEET" .
PKIA2093E
PKIA8260E
PKIA8343E

LAN-22
[CAN]
CAN SYSTEM (TYPE 1)
Revision: August 20072004 QX56
8. Mark the “NG” or “UNKWN” item of the check sheet table with “v” from the result of CAN DIAG SUPPORT
MONITOR check sheet. Refer to LAN-23, "
CHECK SHEET" .
NOTE:
If “NG” is displayed on “CAN COMM” as “CAN DIAG SUPPORT MONITOR” for the diagnosed control
unit, replace the control unit. Refer to AV- 1 3 1 , "
CAN Communication Line Check" .
9. According to the check sheet results (example), start inspection. Refer to LAN-25, "
CHECK SHEET
RESULTS (EXAMPLE)" .

CAN SYSTEM (TYPE 1)
LAN-23
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: August 20072004 QX56
CHECK SHEET
NOTE:
If “NG” is displayed on “INITIAL DIAG (Initial diagnosis)” or “CAN COMM” for the diagnosed control unit,
replace the control unit.
PKIA8048E

LAN-24
[CAN]
CAN SYSTEM (TYPE 1)
Revision: August 20072004 QX56
PKIA8049E

CAN SYSTEM (TYPE 1)
LAN-25
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: August 20072004 QX56
CHECK SHEET RESULTS (EXAMPLE)
NOTE:
If “NG” is displayed on “INITIAL DIAG (Initial diagnosis)” or “CAN COMM” for the diagnosed control unit,
replace the control unit.
Case 1
Check harness between TCM and driver seat control unit. Refer to LAN-40, "Circuit Check Between TCM and
Driver Seat Control Unit" .
PKIA8050E
PKIA8142E

LAN-26
[CAN]
CAN SYSTEM (TYPE 1)
Revision: August 20072004 QX56
Case 2
Check harness between driver seat control unit and data link connector. Refer to LAN-41, "Circuit Check
Between Driver Seat Control Unit and Data Link Connector" .
PKIA8051E
PKIA8143E

CAN SYSTEM (TYPE 1)
LAN-27
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: August 20072004 QX56
Case 3
Check harness between data link connector and IPDM E/R. Refer to LAN-42, "Circuit Check Between Data
Link Connector and IPDM E/R" .
PKIA8052E
PKIA8144E