NISSAN X-TRAIL 2005 Service Repair Manual

CAN SYSTEM (TYPE 2)
LAN-27
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN

CAN SYSTEM (TYPE 2)PFP:23710
System DescriptionEKS00LU9
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
Component Parts and Harness Connector LocationEKS00LUA
SKIA9768E

LAN-28
[CAN]
CAN SYSTEM (TYPE 2)

Wiring Diagram — CAN —EKS00LUB
TKWB1670E

CAN SYSTEM (TYPE 2)
LAN-29
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN

TKWB1671E

LAN-30
[CAN]
CAN SYSTEM (TYPE 2)

Work FlowEKS00LUC
1. Print all the data of “SELF-DIAG RESULTS” for “ENGINE”, “ABS” and “ALL MODE AWD/4WD” displayed
on CONSULT-II.
2. Print all the data of “CAN DIAG SUPPORT MNTR” for “ENGINE”, “ABS” and “ALL MODE AWD/4WD” dis-
played on CONSULT-II.
3. Attach the printed sheet of “SELF-DIAG RESULTS” and “CAN DIAG SUPPORT MNTR” onto the check
sheet. Refer to LAN-31, "
CHECK SHEET" .
4. Based on the results of “CAN DIAG SUPPORT MNTR”, put a check marks onto the items with “NG” or
“UNKWN” in the check sheet table. Refer to LAN-31, "
CHECK SHEET" .
NOTE:

If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, 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.
5. According to the check sheet results (example), start inspection. Refer to LAN-32, "
CHECK SHEET
RESULTS (EXAMPLE)" .
PKIA8260E
PKIA8343E

CAN SYSTEM (TYPE 2)
LAN-31
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN

CHECK SHEET
NOTE:
If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
PKIB9041E

LAN-32
[CAN]
CAN SYSTEM (TYPE 2)

CHECK SHEET RESULTS (EXAMPLE)
NOTE:
If a check mark is put on “NG” on “INITIAL DIAG (Initial diagnosis)”, replace the control unit.
Case 1
Check harness between ABS actuator and electric unit (control unit) and 4WD control unit. Refer to LAN-37,
"Inspection Between ABS Actuator and Electric Unit (Control Unit) and 4WD Control Unit Circuit" .
PKIB9042E
PKIA6502E

CAN SYSTEM (TYPE 2)
LAN-33
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN

Case 2
Check ECM circuit. Refer to LAN-38, "ECM Circuit Inspection" .
PKIB9043E
PKIA6503E

LAN-34
[CAN]
CAN SYSTEM (TYPE 2)

Case 3
Check ABS actuator and electric unit (control unit) circuit. Refer to LAN-39, "ABS Actuator and Electric Unit
(Control Unit) Circuit Inspection" .
PKIB9051E
PKIA6504E

CAN SYSTEM (TYPE 2)
LAN-35
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN

Case 4
Check 4WD control unit circuit. Refer to LAN-39, "4WD Control Unit Circuit Inspection" .
PKIB9052E
PKIA6505E

LAN-36
[CAN]
CAN SYSTEM (TYPE 2)

Case 5
Check combination meter circuit. Refer to LAN-40, "Combination Meter Circuit Inspection" .
Case 6
Check CAN communication circuit. Refer to LAN-40, "CAN Communication Circuit Inspection" .
PKIB9046E
PKIA6506E
PKIB9054E