NISSAN X-TRAIL 2005 Service Repair Manual

CAN COMMUNICATION
LAN-7
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN

Input/output signal chart
T: Transmit R: Receive
*1: YD engine models only
*2: QR engine models only
TYPE 6
System diagram
Signals ECMESP/TCS/ABS
control unitSteering angle
sensor4WD control
unitCombination
meter
4WD mode indicator lamp signalTR
4WD warning lamp signalTR
A/C compressor feedback signal*
2TR
A/C switch signal*
1RT
ABS warning lamp signal T R
Accelerator pedal position signal T R R
Brake warning lamp signal T R
Engine coolant temperature signal TR
Engine speed signal T R R R
ESP OFF indicator lamp signal T R
Glow indicator lamp signal*1 TR
MI signal TR
Stop lamp switch signal T R
Vehicle speed signalTRR
RT
SLIP indicator lamp signal T R
Parking brake switch signalRT
Steering angle sensor signal R T
ASCD SET lamp signal TR
ASCD CRUISE lamp signal TR
PKIA9635E

LAN-8
[CAN]
CAN COMMUNICATION

Input/output signal chart
T: Transmit R: Receive
Signals ECM TCMESP/TCS/
ABS control
unitSteering
angle sensor4WD control
unitCombination
meter
4WD mode indicator lamp signalTR
4WD warning lamp signalTR
A/C compressor feedback signal TR
A/T position indicator lamp signal T R R
A/T self-diagnosis signal R T
ABS warning lamp signal T R
Accelerator pedal position signal T R R
Brake warning lamp signal T R
Closed throttle position signal T R
Engine and A/T integratedTR
RT
Engine coolant temperature signal TR
Engine speed signal T R R R
ESP OFF indicator lamp signal T R
MI signal TR
O/D OFF indicator signal T R
Output shaft revolution signal R T
Overdrive control switch signal R T
P·N range signal R T
SLIP indicator lamp signal T R
Steering angle sensor signal R T
Stop lamp switch signalRT
TR
Vehicle speed signalTRR
RT
Parking brake switch signalRT
Wide open throttle position signal T R
ASCD SET lamp signal TR
ASCD CRUISE lamp signal TR

CAN COMMUNICATION
LAN-9
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN

TYPE 7/TYPE 8
System diagram
Input/output signal chart
T: Transmit R: Receive
*: YD engine models only
SKIA9999E
Signals ECM ABS actuator and electric unit (control unit) Combination meter
A/C compressor feedback signal T R
ABS warning lamp signal T R
Engine coolant temperature signal T R
Engine speed signal T R
MI signal T R
Vehicle speed signalTR
RT
ASCD SET lamp signal T R
ASCD CRUISE lamp signal T R
Stop lamp switch signal T R
Glow indicator lamp signal* T R
A/C switch signal* R T

LAN-10
[CAN]
CAN COMMUNICATION

TYPE 9
System diagram
Input/output signal chart
T: Transmit R: Receive
PKIC0343E
Signals ECM ESP/TCS/ABS control unit Steering angle sensor Combination meter
A/C switch signal RT
ABS warning lamp signal T R
Accelerator pedal position signal T R
Brake warning lamp signal T R
Engine coolant temperature signal TR
Engine speed signal T R R
ESP OFF indicator lamp signal T R
Glow indicator lamp signal TR
MI signal TR
Vehicle speed signalTR
RT
SLIP indicator lamp signal T R
Steering angle sensor signal R T
ASCD SET lamp signal TR
ASCD CRUISE lamp signal TR

CAN SYSTEM (TYPE 1)
LAN-11
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN

CAN SYSTEM (TYPE 1)PFP:23710
System DescriptionEKS00LTX
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 LocationEKS00LTY
SKIA9768E

LAN-12
[CAN]
CAN SYSTEM (TYPE 1)

Wiring Diagram — CAN —EKS00LTZ
TKWB1669E

CAN SYSTEM (TYPE 1)
LAN-13
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN

TKWB0107E

LAN-14
[CAN]
CAN SYSTEM (TYPE 1)

Work FlowEKS00LU0
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-15, "
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-15, "
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-16, "
CHECK SHEET
RESULTS (EXAMPLE)" .
PKIA8260E
PKIA8343E

CAN SYSTEM (TYPE 1)
LAN-15
[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-16
[CAN]
CAN SYSTEM (TYPE 1)

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-21,
"Inspection Between ABS Actuator and Electric Unit (Control Unit) and 4WD Control Unit Circuit" .
PKIB9042E
PKIA6502E