INFINITI QX4 2005 Factory Service Manual

LAN-52
[CAN]
CAN SYSTEM (TYPE 2)
Revision: October 20052005 QX56
Wiring Diagram - CAN -UKS001N6
BKWA0398E

CAN SYSTEM (TYPE 2)
LAN-53
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: October 20052005 QX56
BKWA0399E

LAN-54
[CAN]
CAN SYSTEM (TYPE 2)
Revision: October 20052005 QX56
BKWA0400E

CAN SYSTEM (TYPE 2)
LAN-55
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: October 20052005 QX56
Work FlowUKS001N7
1. When there are no indications of “AUTO DRIVE POS.”, “BCM”, “HVAC” or “IPDM E/R” on “SELECT SYS-
TEM” display of CONSULT-II, print the “SELECT SYSTEM”.
2. Print all the data of “SELF-DIAG RESULTS” for “ENGINE”, “A/T”, “ICC”, “AUTO DRIVE POS.”, “BCM”,
“HVAC”, “ABS” and “IPDM E/R” displayed on CONSULT-II.
3. Print all the data of “CAN DIAG SUPPORT MNTR” for “ENGINE”, “A/T”, “ICC”, “AUTO DRIVE POS.”,
“BCM”, “HVAC”, “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-57, "
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-57,
"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-57,
"CHECK SHEET" .
PKIA2093E
PKIA8260E
PKIA8343E

LAN-56
[CAN]
CAN SYSTEM (TYPE 2)
Revision: October 20052005 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-57, "
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-59, "
CHECK SHEET
RESULTS (EXAMPLE)" .

CAN SYSTEM (TYPE 2)
LAN-57
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: October 20052005 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.
SKIB3455E

LAN-58
[CAN]
CAN SYSTEM (TYPE 2)
Revision: October 20052005 QX56
SKIB3452E

CAN SYSTEM (TYPE 2)
LAN-59
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: October 20052005 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 ICC sensor. Refer to LAN-78, "Circuit Check Between TCM and ICC Sen-
sor" .
SKIB3456E
PKIA8800E

LAN-60
[CAN]
CAN SYSTEM (TYPE 2)
Revision: October 20052005 QX56
Case 2
Check harness between ICC sensor and ICC unit. Refer to LAN-79, "Circuit Check Between ICC Sensor and
ICC Unit" .
SKIB3457E
PKIA8801E

CAN SYSTEM (TYPE 2)
LAN-61
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: October 20052005 QX56
Case 3
Check harness between ICC unit and driver seat control unit. Refer to LAN-80, "Circuit Check Between ICC
Unit and Driver Seat Control Unit" .
SKIB3458E
PKIA8802E