Page 3648 of 3833
WW-20
HEADLAMP WASHER
Wiring Diagram –HLC–
EKS0036I
TKWA0107E
Page 3651 of 3833
HORN
WW-23
C
D
E
F
G
H
I
J
L
MA
B
WW
HORNPFP:25610
Wiring Diagram — HORN —EKS0033A
TKWA0108E
Page 3653 of 3833
CIGARETTE LIGHTER
WW-25
C
D
E
F
G
H
I
J
L
MA
B
WW
CIGARETTE LIGHTERPFP:35330
Wiring Diagram — CIGAR —EKS0033C
TKWA0109E
Page 3655 of 3833
POWER SOCKET
WW-27
C
D
E
F
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L
MA
B
WW
POWER SOCKETPFP:253A2
Wiring Diagram –POWER SOCKET–EKS0036E
TKWA0109E
Page 3657 of 3833
BCS-1
BODY CONTROL SYSTEM
K ELECTRICAL
CONTENTS
C
D
E
F
G
H
I
J
L
M
SECTION
A
B
BCS
BODY CONTROL SYSTEM
PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
Wiring Diagrams and Trouble Diagnosis .................. 2
TIME CONTROL UNIT ............................................... 3Description ................................................................ 3
OUTLINE ............................................................... 3
INPUT/OUTPUT .................................................... 3
Schematic ................................................................. 4
Time Control Unit Inspection Table ........................... 5
Page 3658 of 3833

BCS-2
PRECAUTIONS
PRECAUTIONS
PFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EKS0079N
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:
●To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
●Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
●Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harness connec-
tors.
Wiring Diagrams and Trouble Diagnosis EKS0079O
When you read wiring diagrams, refer to the followings:
●Refer to GI-13, "How to Read Wiring Diagrams" in GI section
●Refer to PG-2, "POWER SUPPLY ROUTING" for power distribution circuit in PG section
When you perform trouble diagnosis, refer to the followings:
●Refer to GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" in PG section
●Refer to GI-23, "How to Perform Efficient Diagnosis for an Electrical Incident" in PG section
Page 3663 of 3833

LAN-1
LAN SYSTEM
K ELECTRICAL
CONTENTS
C
D
E
F
G
H
I
J
L
M
SECTION
A
B
LAN
LAN SYSTEM
CAN
PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
Precautions For Trouble Diagnosis .......................... 2
CAN SYSTEM ....................................................... 2
Precautions For Harness Repair .............................. 2
CAN SYSTEM ....................................................... 2
CAN COMMUNICATION ............................................ 3
System Description .................................................. 3
FOR A/T MODELS ................................................ 3
FOR M/T MODELS ............................................... 3
CAN SYSTEM (FOR A/T MODELS) ........................... 5
System Description .................................................. 5
Component Parts and Harness Connector Location ..... 5
Wiring Diagram — CAN — ....................................... 6
Work Flow ................................................................ 7
CHECK SHEET ..................................................... 8
CHECK SHEET RESULTS (EXAMPLE) ............... 9
INSPECTION ........................................................ 9CAN Communication Circuit Check .......................... 9
Component Inspection ............................................ 11
ECM/TCM INTERNAL CIRCUIT INSPECTION ... 11
CAN SYSTEM (FOR M/T MODELS) ........................ 12
System Description ................................................. 12
Component Parts and Harness Connector Location ... 12
Wiring Diagram — CAN — ..................................... 13
Work Flow ............................................................... 14
CHECK SHEET ................................................... 15
CHECK SHEET RESULTS (EXAMPLE) ............. 16
INSPECTION ...................................................... 17
Circuit Check Between Steering Wheel Angle Sen-
sor and 4WD Control Unit ....................................... 17
ECM Circuit Check .............................................. ... 18
4WD Control Unit Circuit Check ............................. 19
Steering Wheel Angle Sensor Circuit Check .......... 20
ESP/TCS/ABS Control Unit Circuit Check .............. 20
CAN Communication Circuit Check ........................ 21
Component Inspection ............................................ 25
ECM / ESP/TCS/ABS CONTROL UNIT INTER-
NAL CIRCUIT INSPECTION ............................... 25
Page 3665 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual CAN COMMUNICATION
LAN-3
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
CAN COMMUNICATIONPFP:23710
System DescriptionEKS001U3
CAN (Controller Area Network) is a serial communication line for real time application. I NISSAN X-TRAIL 2001 Service Repair Manual CAN COMMUNICATION
LAN-3
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
CAN COMMUNICATIONPFP:23710
System DescriptionEKS001U3
CAN (Controller Area Network) is a serial communication line for real time application. I](/manual-img/5/57405/w960_57405-3664.png)
CAN COMMUNICATION
LAN-3
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
CAN COMMUNICATIONPFP:23710
System DescriptionEKS001U3
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.
FOR A/T MODELS
System diagram
Input/output signal chart
T: Transmit R: Receive
FOR M/T MODELS
System diagram
Input/output signal chart
T: Transmit R: Receive
SKIA0884E
Signals ECM TCM
Engine coolant temperature signal T R
Accelerator pedal position signal T R
A/T self-diagnosis signal R T
SKIA0885E
Signals ECMSteering wheel
angle sensor4WD control unitESP/ TCS / ABS
control unit
Engine speed signal T R R
Accelerator pedal position signal T R
ESP operation signal R R T
TCS operation signal R R T
ABS operation signal R R T
Stop lamp switch signalRT
Steering wheel angle sensor signal T R
ESP-OFF switch signalRT