2003 NISSAN X-TRAIL diagram

HEADLAMP WASHER
WW-21
C
D
E
F
G
H
I
J
L
MA
B
WW

Wiring Diagram —HLC—EKS0036I
TKWA1558E

WW-22
HEADLAMP WASHER

Wiring Diagram —HLC—/RHD modelsEKS00ES9
TKWA1559E

HORN
WW-25
C
D
E
F
G
H
I
J
L
MA
B
WW

HORNPFP:25610
Wiring Diagram — HORN —EKS0033A
TKWA1560E

CIGARETTE LIGHTER
WW-27
C
D
E
F
G
H
I
J
L
MA
B
WW

CIGARETTE LIGHTERPFP:35330
Wiring Diagram — CIGAR —EKS0033C
TKWA1561E

POWER SOCKET
WW-29
C
D
E
F
G
H
I
J
L
MA
B
WW

POWER SOCKETPFP:253A2
Wiring Diagram —POWER SOCKET—EKS0036E
TKWA1561E

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

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 harnesses or
harness connectors.
Wiring Diagrams and Trouble Diagnosis EKS0079O
When reading wiring diagrams, refer to the following:

GI-14, "How to Read Wiring Diagrams" in GI section

PG-2, "POWER SUPPLY ROUTING" for power distribution circuit in PG section
When performing trouble diagnosis, refer to the following:

GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" in PG section

GI-23, "How to Perform Efficient Diagnosis for an Electrical Incident" in PG section

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 .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions For Trouble Diagnosis .......................... 3
CAN SYSTEM ....................................................... 3
Precautions For Harness Repair .............................. 3
CAN SYSTEM ....................................................... 3
CAN COMMUNICATION ............................................ 4
System Description .................................................. 4
CAN Communication Unit ........................................ 4
TYPE 1 .................................................................. 4
TYPE 2 .................................................................. 5
TYPE 3/TYPE4 ..................................................... 6
TYPE 5 .................................................................. 7
CAN SYSTEM (TYPE 1) ............................................. 9
System Description .................................................. 9
Component Parts and Harness Connector Location ..... 9
Wiring Diagram — CAN — ..................................... 10
Work Flow .............................................................. 12
CHECK SHEET ................................................... 13
CHECK SHEET RESULTS (EXAMPLE) ............. 14
Between ABS Actuator and Electric Unit (Control
Unit) and 4WD Control Unit Circuit Inspection ....... 19
ECM Circuit Inspection ........................................... 20
ABS Actuator and Electric Unit (Control Unit) Circuit
Inspection ............................................................... 21
4WD Control Unit Circuit Inspection ....................... 21
Combination Meter Circuit Inspection .................... 22
CAN Communication Circuit Inspection ................. 22
Component Inspection ........................................... 24
CHECK ECM AND COMBINATION METER
INTERNAL CIRCUIT ........................................... 24
CAN SYSTEM (TYPE 2) ........................................... 25
System Description ................................................ 25
Component Parts and Harness Connector Location ... 25
Wiring Diagram — CAN — ..................................... 26
Work Flow .............................................................. 28
CHECK SHEET ................................................... 29CHECK SHEET RESULTS (EXAMPLE) ............. 30
Between TCM and ABS Actuator and Electric Unit
(Control Unit) Circuit Inspection .............................. 37
Between ABS Actuator and Electric Unit (Control
Unit) and 4WD Control Unit Circuit Inspection ....... 39
ECM Circuit Inspection ........................................... 41
TCM Circuit Inspection ........................................... 42
ABS Actuator and Electric Unit (Control Unit) Circuit
Inspection ............................................................... 42
4WD Control Unit Circuit Inspection ....................... 43
Combination Meter Circuit Inspection ..................... 43
CAN Communication Circuit Inspection ................. 44
Component Inspection ............................................ 49
CHECK ECM AND COMBINATION METER
INTERNAL CIRCUIT ........................................... 49
CAN SYSTEM (TYPE 3) ........................................... 50
System Description ................................................. 50
Component Parts and Harness Connector Location ... 50
Wiring Diagram — CAN — ..................................... 51
Work Flow ............................................................... 53
CHECK SHEET ................................................... 54
CHECK SHEET RESULTS (EXAMPLE) ............. 55
Between ESP/TCS/ABS Control Unit and 4WD
Control Unit Circuit Inspection ................................ 61
ECM Circuit Inspection ........................................... 62
ESP/TCS/ABS Control Unit Circuit Inspection ....... 63
Steering Angle Sensor Circuit Inspection ............... 63
4WD Control Unit Circuit Inspection ....................... 64
Combination Meter Circuit Inspection ..................... 64
CAN Communication Circuit Inspection ................. 65
Component Inspection ............................................ 67
CHECK ECM AND COMBINATION METER
INTERNAL CIRCUIT ........................................... 67
CAN SYSTEM (TYPE 4) ........................................... 68
System Description ................................................. 68
Component Parts and Harness Connector Location ... 68
Wiring Diagram — CAN — ..................................... 69
Work Flow ............................................................... 71
CHECK SHEET ................................................... 72
CHECK SHEET RESULTS (EXAMPLE) ............. 73