Harness and wiring NISSAN X-TRAIL 2005 Service Repair Manual

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DRIVER INFORMATION SYSTEM
K ELECTRICAL
CONTENTS
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SECTION DI
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DRIVER INFORMATION SYSTEM
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Wiring Diagrams and Trouble Diagnosis .................. 3
COMBINATION METERS ........................................... 4
System Description .................................................. 4
UNIFIED CONTROL METER ................................ 4
HOW TO CHANGE THE DISPLAY FOR ODO/
TRIP METER ........................................................ 4
POWER SUPPLY AND GROUND CIRCUIT ........ 4
WATER TEMPERATURE GAUGE ........................ 4
TACHOMETER ..................................................... 5
SPEEDOMETER ................................................... 5
FUEL GAUGE ....................................................... 5
AMBIENT TEMPERATURE INDICATOR .............. 5
CAN Communication ................................................ 6
CAN Communication Unit ........................................ 6
TYPE 1/TYPE 2 .................................................... 7
TYPE 3 .................................................................. 8
TYPE 4/TYPE 5 .................................................... 9
TYPE 6 ................................................................ 10
TYPE 7/TYPE 8 ................................................... 11
TYPE 9 ................................................................ 12
Component Parts and Harness Connector Location ... 13
Combination Meter ................................................. 14
CHECK ................................................................ 14
Schematic/LHD Models .......................................... 15
Wiring Diagram — METER —/LHD Models ........... 16
Schematic/RHD Models ......................................... 18
Wiring Diagram — METER —/RHD Models .......... 19
Terminals and Reference Value for Combination
Meter ...................................................................... 21
Meter/Gauges Operation and Odo/Trip Meter ........ 21
SELF-DIAGNOSIS FUNCTION .......................... 21
HOW TO ALTERNATE DIAGNOSIS MODE ....... 21
How to Perform Trouble Diagnosis ........................ 22
Diagnosis Flow ....................................................... 22
Power Supply and Ground Circuit Inspection ........ 23
Trouble Diagnosis Chart for Symptom ................... 24DIAGNOSIS RESULTS ....................................... 24
Fuel Level Sensor Signal Inspection [Gasoline
Engine Models] ....................................................... 25
FUEL GAUGE ..................................................... 25
LOW-FUEL WARNING LAMP ............................. 25
Fuel Level Sensor Signal Inspection [Diesel Engine
Models] ................................................................... 26
FUEL GAUGE ..................................................... 26
LOW-FUEL WARNING LAMP ............................. 26
Engine Speed Signal Inspection ............................. 28
Engine Coolant Temperature Signal Inspection ..... 28
Vehicle Speed Signal Inspection [With ESP] .......... 28
Vehicle Speed Signal Inspection [Without ESP] ..... 28
The Fuel Gauge Pointer Fluctuates, Indicator
Wrong Value or Varies ............................................ 28
The Fuel Gauge Does Not Move to FULL Position ... 29
Ambient Temperature Signal Inspection [Without
Auto A/C] ................................................................ 30
Ambient Temperature Signal Inspection [With Auto
A/C] ......................................................................... 31
Electrical Components Inspection .......................... 32
FUEL LEVEL SENSOR UNIT CHECK/GASO-
LINE ENGINE MODELS ..................................... 32
FUEL LEVEL SENSOR UNIT CHECK/DIESEL
ENGINE MODELS .............................................. 32
AMBIENT SENSOR CHECK ............................... 33
Removal and Installation for Combination Meter .... 33
REMOVAL ........................................................... 33
INSTALLATION ................................................... 33
Disassembly and Assembly for Combination Meter ... 34
DISASSEMBLY ................................................... 34
ASSEMBLY ......................................................... 34
WARNING LAMPS .................................................... 35
Schematic ............................................................... 35
Wiring Diagram — WARN —/LHD Models ............. 36
Wiring Diagram — WARN —/RHD Models ............ 44
Electrical Components Inspection .......................... 52
OIL PRESSURE SWITCH CHECK ..................... 52
DIODE CHECK ................................................... 52
A/T INDICATOR ........................................................ 53

PRECAUTIONS
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PRECAUTIONS PFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EKS00367
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 EKS00368
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 GI section

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

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WARNING LAMPS

Electrical Components InspectionEKS002HK
OIL PRESSURE SWITCH CHECK
Check continuity between the terminals of oil pressure switch and
ground.
DIODE CHECK

Check continuity using tester.

Diode is functioning properly if test results are as shown in the
figure.

Check diodes at the combination meter harness connector
instead of on the combination meter assembly. Refer to DI-36,
"Wiring Diagram — WARN —/LHD Models" or DI-44, "Wiring
Diagram — WARN —/RHD Models" .
NOTE:
Specification may vary depending on the type of tester. Before
performing this inspection, be sure to refer to the instruction
manual for the tester to be used.
Condition
Oil pressure [kPa (bar, kg/cm2 , psi)]Continuity
Engine running More than 29 (0.30, 0.3, 4) No
Engine stopped Less than 29 (0.30, 0.3, 4) Yes
ELF0044D
SKIB0607E

PRECAUTIONS
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PRECAUTIONS PFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EKS0079K
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 EKS0079L
When you read wiring diagrams, refer to the following:

Refer to GI-14, "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 following:

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

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

LAN-1
LAN SYSTEM
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SECTION LAN
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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

PRECAUTIONS
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[CAN]
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[CAN]PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EKS001U0
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.
Precautions For Trouble DiagnosisEKS001U1
CAN SYSTEM

Do not apply voltage of 7.0 V or higher to the measurement terminals.

Use the tester with its open terminal voltage being 7.0 V or less.

Be sure to turn ignition switch off and disconnect the battery cable from the negative terminal before
checking the circuit.
Precautions For Harness RepairEKS001U2
CAN SYSTEM

Solder the repaired parts, and wrap with tape. [Frays of twisted
line must be within 110 mm (4.33 in).]

Do not perform bypass wire connections for the repair parts.
(The spliced wire will become separated and the characteristics
of twisted line will be lost.)
PKIA0306E
PKIA0307E

CAN SYSTEM (TYPE 1)
LAN-11
[CAN]
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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

CAN SYSTEM (TYPE 2)
LAN-27
[CAN]
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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

CAN SYSTEM (TYPE 3)
LAN-43
[CAN]
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CAN SYSTEM (TYPE 3)PFP:23710
System DescriptionEKS00LUK
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 LocationEKS00LUL
SKIB0084E