2005 NISSAN X-TRAIL diagram

LAN-1
LAN SYSTEM
K ELECTRICAL
CONTENTS
C
D
E
F
G
H
I
J
L
M
SECTION LAN
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/TYPE 2 .................................................... 4
TYPE 3 .................................................................. 5
TYPE 4/TYPE 5 .................................................... 6
TYPE 6 .................................................................. 7
TYPE 7/TYPE 8 .................................................... 9
TYPE 9 ................................................................ 10
CAN SYSTEM (TYPE 1) ............................................11
System Description ................................................. 11
Component Parts and Harness Connector Location .... 11
Wiring Diagram — CAN — ..................................... 12
Work Flow .............................................................. 14
CHECK SHEET ................................................... 15
CHECK SHEET RESULTS (EXAMPLE) ............. 16
Inspection Between ABS Actuator and Electric Unit
(Control Unit) and 4WD Control Unit Circuit ........... 21
ECM Circuit Inspection ........................................... 22
ABS Actuator and Electric Unit (Control Unit) Circuit
Inspection ............................................................... 23
4WD Control Unit Circuit Inspection ....................... 23
Combination Meter Circuit Inspection .................... 24
CAN Communication Circuit Inspection ................. 24
Component Inspection ........................................... 26
CHECK ECM AND COMBINATION METER
INTERNAL CIRCUIT ........................................... 26
CAN SYSTEM (TYPE 2) ........................................... 27
System Description ................................................ 27
Component Parts and Harness Connector Location ... 27
Wiring Diagram — CAN — ..................................... 28Work Flow ............................................................... 30
CHECK SHEET ................................................... 31
CHECK SHEET RESULTS (EXAMPLE) ............. 32
Inspection Between ABS Actuator and Electric Unit
(Control Unit) and 4WD Control Unit Circuit ........... 37
ECM Circuit Inspection ........................................... 38
ABS Actuator and Electric Unit (Control Unit) Circuit
Inspection ............................................................... 39
4WD Control Unit Circuit Inspection ....................... 39
Combination Meter Circuit Inspection ..................... 40
CAN Communication Circuit Inspection ................. 40
Component Inspection ............................................ 42
CHECK ECM AND COMBINATION METER
INTERNAL CIRCUIT ........................................... 42
CAN SYSTEM (TYPE 3) ........................................... 43
System Description ................................................. 43
Component Parts and Harness Connector Location ... 43
Wiring Diagram — CAN — ..................................... 44
Work Flow ............................................................... 46
CHECK SHEET ................................................... 47
CHECK SHEET RESULTS (EXAMPLE) ............. 48
Inspection Between TCM and ABS Actuator and
Electric Unit (Control Unit) Circuit ........................... 55
Inspection Between ABS Actuator and Electric Unit
(Control Unit) and 4WD Control Unit Circuit ........... 57
ECM Circuit Inspection ........................................... 59
TCM Circuit Inspection ........................................... 60
ABS Actuator and Electric Unit (Control Unit) Circuit
Inspection ............................................................... 60
4WD Control Unit Circuit Inspection ....................... 61
Combination Meter Circuit Inspection ..................... 61
CAN Communication Circuit Inspection ................. 62
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

LAN-2 CHECK SHEET ................................................... 72
CHECK SHEET RESULTS (EXAMPLE) ............. 73
Inspection Between ESP/TCS/ABS Control Unit
and 4WD Control Unit Circuit ................................. 79
ECM Circuit Inspection ........................................... 80
ESP/TCS/ABS Control Unit Circuit Inspection ........ 81
Steering Angle Sensor Circuit Inspection ............... 81
4WD Control Unit Circuit Inspection ....................... 82
Combination Meter Circuit Inspection ..................... 82
CAN Communication Circuit Inspection .................. 83
Component Inspection ............................................ 85
CHECK ECM AND COMBINATION METER
INTERNAL CIRCUIT ........................................... 85
CAN SYSTEM (TYPE 5) ........................................... 86
System Description ................................................. 86
Component Parts and Harness Connector Location ... 86
Wiring Diagram — CAN — ..................................... 87
Work Flow ............................................................... 89
CHECK SHEET ................................................... 90
CHECK SHEET RESULTS (EXAMPLE) ............. 91
Inspection Between ESP/TCS/ABS Control Unit
and 4WD Control Unit Circuit ................................. 97
ECM Circuit Inspection ........................................... 98
ESP/TCS/ABS Control Unit Circuit Inspection ........ 99
Steering Angle Sensor Circuit Inspection ............... 99
4WD Control Unit Circuit Inspection .....................100
Combination Meter Circuit Inspection ...................100
CAN Communication Circuit Inspection ................101
Component Inspection ..........................................103
CHECK ECM AND COMBINATION METER
INTERNAL CIRCUIT .........................................103
CAN SYSTEM (TYPE 6) .........................................104
System Description ...............................................104
Component Parts and Harness Connector Location .104
Wiring Diagram — CAN — ...................................105
Work Flow .............................................................107
CHECK SHEET .................................................108
CHECK SHEET RESULTS (EXAMPLE) ...........109
Inspection Between TCM and ESP/TCS/ABS Con-
trol Unit Circuit ......................................................117
Inspection Between ESP/TCS/ABS Control Unit
and 4WD Control Unit Circuit ...............................119
ECM Circuit Inspection .........................................121
TCM Circuit Inspection .........................................122
ESP/TCS/ABS Control Unit Circuit Inspection ......122
Steering Angle Sensor Circuit Inspection .............123
4WD Control Unit Circuit Inspection .....................123
Combination Meter Circuit Inspection ...................124
CAN Communication Circuit Inspection ................125
Component Inspection ..........................................129
CHECK ECM AND COMBINATION METER INTERNAL CIRCUIT ..........................................129
CAN SYSTEM (TYPE 7) ..........................................130
System Description ...............................................130
Component Parts and Harness Connector Location .130
Wiring Diagram — CAN — ...................................131
Work Flow .............................................................133
CHECK SHEET .................................................134
CHECK SHEET RESULTS (EXAMPLE) ............135
ECM Circuit Inspection .........................................138
ABS Actuator and Electric Unit (Control Unit) Circuit
Inspection ..............................................................138
Combination Meter Circuit Inspection ...................139
CAN Communication Circuit Inspection ................140
Component Inspection ..........................................142
CHECK ECM AND COMBINATION METER
INTERNAL CIRCUIT ..........................................142
CAN SYSTEM (TYPE 8) ..........................................143
System Description ...............................................143
Component Parts and Harness Connector Location .143
Wiring Diagram — CAN — ...................................144
Work Flow .............................................................146
CHECK SHEET .................................................147
CHECK SHEET RESULTS (EXAMPLE) ............148
ECM Circuit Inspection .........................................151
ABS Actuator and Electric Unit (Control Unit) Circuit
Inspection ..............................................................151
Combination Meter Circuit Inspection ...................152
CAN Communication Circuit Inspection ................153
Component Inspection ..........................................155
CHECK ECM AND COMBINATION METER
INTERNAL CIRCUIT ..........................................155
CAN SYSTEM (TYPE 9) ..........................................156
System Description ...............................................156
Component Parts and Harness Connector Location .156
Wiring Diagram — CAN — ...................................157
Work Flow .............................................................159
CHECK SHEET .................................................160
CHECK SHEET RESULTS (EXAMPLE) ............161
Inspection Between ESP/TCS/ABS Control Unit
and steering angle sensor Circuit .........................166
ECM Circuit Inspection .........................................167
ESP/TCS/ABS Control Unit Circuit Inspection ......168
Steering Angle Sensor Circuit Inspection ..............168
Combination Meter Circuit Inspection ...................169
CAN Communication Circuit Inspection ................169
Component Inspection ..........................................171
CHECK ECM AND COMBINATION METER
INTERNAL CIRCUIT ..........................................171

LAN-4
[CAN]
CAN COMMUNICATION

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.
CAN Communication UnitEKS00EGL
Go to CAN system, when selecting your CAN system type from the following table.
TYPE 1/TYPE 2
System diagram
Body type Wagon
Axle 4WD 2WD
Engine YD22DDTi QR20DE/QR25DE YD22DDTi QR25DE QR20DE YD22DDTi
Transmission M/T A/T M/T A/T M/T
Brake control ABS ESP ABS ESP
CAN system type 1 2 3 4 5 6 7 8 9
CAN system trouble diagnosisLAN-11
LAN-27LAN-43LAN-68LAN-
86
LAN-
104LAN-130LAN-
143
LAN-
156
ECM×××××××××
TCM××
ESP/TCS/ABS control unit××× ×
ABS actuator and electric unit
(control unit)××× ××
Steering angle sensor××× ×
4WD control unit××××××
Combination meter×××××××××
PKIA6458E

CAN COMMUNICATION
LAN-5
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN

Input/output signal chart
T: Transmit R: Receive
*: YD engine models only
TYPE 3
System diagram
Input/output signal chart
T: Transmit R: Receive Signals ECMABS actuator and
electric unit
(control unit)4WD control unit Combination meter
4WD mode indicator lamp signal T R
4WD warning lamp signalTR
A/C compressor feedback signal T R
ABS warning lamp signal T R
Accelerator pedal position signal T R
Engine coolant temperature signal T R
Engine speed signal T R R
MI signal T R
Parking brake switch signalRT
Stop lamp switch signal T R
Vehicle speed signalTRR
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
PKIA6457E
Signals ECM TCMABS actuator
and electric unit
(control unit)4WD control
unitCombination
meter
4WD mode indicator lamp signalTR
4WD warning lamp signalTR

LAN-6
[CAN]
CAN COMMUNICATION

TYPE 4/TYPE 5
System diagram
A/C compressor feedback signal TR
A/T position indicator lamp signal T R
A/T self-diagnosis signal R T
ABS warning lamp signal T R
Accelerator pedal position signal T R
Closed throttle position signal T R
Engine A/T integrated control signalTR
RT
Engine coolant temperature signal TR
Engine speed signal T R 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
Parking brake switch signalRT
Stop lamp switch signalRT
TR
Vehicle speed signalTRR
RT
Wide open throttle position signal T R
ASCD SET lamp signal TR
ASCD CRUISE lamp signal TR Signals ECM TCMABS actuator
and electric unit
(control unit)4WD control
unitCombination
meter
PKIA9634E

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

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