Nissan Xterra Electrical System EL 2000 Owner's Manual
ELECTRICAL SYSTEM
GI
MA
CONTENTS
PRECAUTIONS ...............................................................4
Supplemental Restraint System (SRS) ″AIR
BAG″ and ″SEAT BELT PRE-TENSIONER″...............4
Wiring Diagrams and Trouble Diagnosis.....................4
HARNESS CONNECTOR................................................5
Description...................................................................5
STANDARDIZED RELAY................................................7
Description...................................................................7
POWER SUPPLY ROUTING...........................................9
Circuit Diagram............................................................9
Wiring Diagram - POWER - ......................................11
Inspection...................................................................16
GROUND........................................................................17
Ground Distribution....................................................17
COMBINATION SWITCH ..............................................31
Check.........................................................................31
Replacement..............................................................32
STEERING SWITCH......................................................33
Check.........................................................................33
HEADLAMP (FOR USA)...............................................34
System Description....................................................34
Wiring Diagram - H/LAMP -.......................................35
Trouble Diagnoses.....................................................36
Bulb Replacement .....................................................37
Aiming Adjustment.....................................................38
HEADLAMP (FOR CANADA) - DAYTIME LIGHT
SYSTEM - ......................................................................40
System Description (For Canada).............................40
Circuit Diagram..........................................................42
Wiring Diagram - DTRL -...........................................43
Trouble Diagnoses.....................................................46
Bulb Replacement .....................................................47
Aiming Adjustment.....................................................47
PARKING, LICENSE AND TAIL LAMPS .....................48
Wiring Diagram - TAIL/L -..........................................48
STOP LAMP ..................................................................49
Wiring Diagram - STOP/L - .......................................49
BACK-UP LAMP............................................................50
Wiring Diagram - BACK/L -.......................................50
SECTION
FRONT FOG LAMP.......................................................51
System Description....................................................51
Wiring Diagram - F/FOG -.........................................52
Aiming Adjustment.....................................................53
Removal and Installation...........................................54
Bulb and Lens Replacement.....................................54
TURN SIGNAL AND HAZARD WARNING LAMPS.....55
System Description....................................................55
Wiring Diagram - TURN -..........................................57
Trouble Diagnoses.....................................................59
Electrical Components Inspection.............................59
TRAILER TOW...............................................................60
System Description....................................................60
Wiring Diagram - T/TOW -.........................................61
Trouble Diagnoses.....................................................62
ILLUMINATION..............................................................63
System Description....................................................63
Wiring Diagram - ILL -...............................................64
INTERIOR ROOM LAMP...............................................66
Component Parts and Harness Connector
Location .....................................................................66
System Description....................................................67
Wiring Diagram - ROOM/L -......................................69
METERS AND GAUGES...............................................72
Component Parts and Harness Connector
Location .....................................................................72
System Description....................................................73
Combination Meter ....................................................75
Wiring Diagram - METER - .......................................77
Meter/Gauge Operation and Odo/Trip Meter
Segment Check in Diagnosis Mode..........................78
Trouble Diagnoses.....................................................79
Electrical Components Inspection.............................85
WARNING LAMPS........................................................87
Circuit Diagram..........................................................87
Wiring Diagram - WARN -.........................................88
Electrical Components Inspection.............................95
WARNING CHIME.........................................................96
EL
EM
LC
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FE
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MT
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PD
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IDX
CONTENTS (Cont’d)
Component Parts and Harness Connector
Location .....................................................................96
System Description....................................................97
Wiring Diagram - CHIME - ........................................99
Trouble Diagnoses...................................................101
FRONT WIPER AND WASHER..................................110
System Description..................................................110
Wiring Diagram - WIPER -......................................113
Trouble Diagnoses (With intermittent wipers).........115
Removal and Installation.........................................118
Washer Nozzle Adjustment .....................................119
Washer Tube Layout ...............................................120
REAR WIPER AND WASHER....................................121
System Description..................................................121
Wiring Diagram - WIP/R -........................................122
Removal and Installation.........................................123
Washer Nozzle Adjustment .....................................124
Washer Tube Layout ...............................................125
Check Valve.............................................................125
HORN...........................................................................126
Wiring Diagram - HORN - .......................................126
CIGARETTE LIGHTER................................................127
Wiring Diagram - CIGAR -.......................................127
AUDIO..........................................................................128
System Description..................................................128
Wiring Diagram - AUDIO -.......................................129
Trouble Diagnoses...................................................130
Inspection.................................................................130
AUDIO ANTENNA.......................................................132
Location of Antenna.................................................132
Fixed Antenna Rod Replacement............................132
REAR WINDOW DEFOGGER.....................................133
Component Parts and Harness Connector
Location ...................................................................133
System Description..................................................134
Wiring Diagram - DEF -...........................................136
Trouble Diagnoses...................................................137
Electrical Components Inspection...........................141
Filament Check........................................................142
Filament Repair .......................................................143
DOOR MIRROR...........................................................144
Wiring Diagram - MIRROR - ...................................144
AUTOMATIC SPEED CONTROL DEVICE (ASCD)...145
Component Parts and Harness Connector
Location ...................................................................145
System Description..................................................147
Circuit Diagram........................................................149
Wiring Diagram - ASCD - ........................................150
Fail-safe System......................................................154
Trouble Diagnoses...................................................155
Electrical Component Inspection.............................168
ASCD Wire Adjustment ...........................................170
POWER WINDOW.......................................................171
System Description..................................................171
Wiring Diagram - WINDOW -..................................173
Trouble Diagnoses...................................................177
POWER DOOR LOCK.................................................178
Component Parts and Harness Connector
Location ...................................................................178
System Description..................................................179
Circuit Diagram........................................................183
Wiring Diagram - D/LOCK -.....................................184
Trouble Diagnoses...................................................188
MULTI-REMOTE CONTROL SYSTEM.......................202
Component Parts and Harness Connector
Location ...................................................................202
System Description..................................................203
Circuit Diagram........................................................206
Wiring Diagram - MULTI - .......................................207
Trouble Diagnoses...................................................211
ID Code Entry Procedure........................................223
Remote Controller Battery Replacement.................224
THEFT WARNING SYSTEM.......................................225
Component Parts and Harness Connector
Location ...................................................................225
System Description..................................................227
Circuit Diagram........................................................230
Wiring Diagram - THEFT -.......................................231
Trouble Diagnoses...................................................235
SMART ENTRANCE CONTROL UNIT.......................254
Description...............................................................254
Circuit Diagram........................................................255
Smart Entrance Control Unit Inspection Table........257
ELECTRICAL UNITS LOCATION...............................259
Engine Compartment...............................................259
Passenger Compartment.........................................260
HARNESS LAYOUT....................................................262
How to Read Harness Layout.................................262
Outline......................................................................263
Main Harness...........................................................264
Engine Room Harness ............................................266
Engine Control Harness ..........................................272
Engine No. 2 Harness.............................................276
Body Harness..........................................................278
Body No. 2 and Chassis Harness...........................279
Room Lamp Harness...............................................280
Front Door Harness.................................................281
Rear Door Harness..................................................282
Back Door Harness .................................................283
Air Bag Harness ......................................................284
BULB SPECIFICATIONS............................................285
Headlamp.................................................................285
Exterior Lamp ..........................................................285
Interior Lamp............................................................285
EL-2
CONTENTS (Cont’d)
WIRING DIAGRAM CODES (CELL CODES).............286
GI
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EM
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FE
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PD
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EL-3
SC
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PRECAUTIONS
Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER”
Supplemental Restraint System (SRS) “AIR
BAG” and “SEAT BELT PRE-TENSIONER”
The Supplemental Restraint System “AIR BAG” and “SEAT BELT PRE-TENSIONER” used along with a seat
belt, helps to reduce the risk of severe injury to the driver and front passenger in certain types of collisions.
The Supplemental Restraint System consists of a driver air bag module (located in the center of the steering
wheel), a front passenger air bag module (located on the instrument panel on the passenger side), seat belt
pre-tensionsers, a diagnosis sensor unit, a crash zone sensor (4WD models), a warning lamp, wiring harness
and spiral cable.
Information necessary to service the system safely is included in the RS section of this Service Manual.
WARNING:
쐌 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 should be performed by an authorized NISSAN dealer.
쐌 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 RS section.
쐌 Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. Spiral cable and wiring harnesses (except “SEAT BELT PRE-TENSIONER”) covered with yellow insulation, either just before the harness connectors or for the complete harness,
are related to the SRS.
NGEL0001
Wiring Diagrams and Trouble Diagnosis
When you read wiring diagrams, refer to the following:
쐌 GI-10, “HOW TO READ WIRING DIAGRAMS”
쐌 EL-9, “POWER SUPPLY ROUTING” for power distribution circuit.
When you perform trouble diagnosis, refer to the following:
쐌 GI-34, “HOW TO FOLLOW TEST GROUP IN TROUBLE DIAGNOSIS”.
쐌 GI-23, “HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT”.
Check for any Service bulletins before servicing the vehicle.
NGEL0002
EL-4
HARNESS CONNECTOR
Description
Description
HARNESS CONNECTOR (TAB-LOCKING TYPE)
쐌 The tab-locking type connectors help prevent accidental looseness or disconnection.
쐌 The tab-locking type connectors are disconnected by pushing or lifting the locking tab(s). Refer to the
illustration below.
Refer to EL-6 for description of the slide-locking type connector.
CAUTION:
Do not pull the harness when disconnecting the connector.
[Example]
NGEL0003
NGEL0003S01
GI
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FE
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MT
AT
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PD
AX
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BT
EL-5
SEL769D
HA
SC
IDX
Description (Cont’d)
HARNESS CONNECTOR
HARNESS CONNECTOR (SLIDE-LOCKING TYPE)
=NGEL0003S02
쐌 A new style slide-locking connector is used on certain systems and components, especially those related
to OBD>
쐌 The slide-locking type connectors help prevent incomplete locking and accidental looseness or disconnec-
tion.
쐌 The slide-locking type connectors are disconnected by pushing or pulling the slider. Refer to the illustra-
tion below.
CAUTION:
Do not pull the harness or wires when disconnecting the connector.
Be careful not to damage the connector support bracket when disconnecting the connector.
EL-6
AEL299C
STANDARDIZED RELAY
Description
Description
NORMAL OPEN, NORMAL CLOSED AND MIXED TYPE RELAYS
Relays can mainly be divided into three types: normal open, normal closed and mixed type relays.
NGEL0004
NGEL0004S01
SEL881H
GI
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EM
LC
EC
FE
CL
MT
TYPE OF STANDARDIZED RELAYS
1M 1 Make 2M 2 Make
1T 1 Transfer 1M·1B 1 Make 1 Break
NGEL0004S02
SEL882H
AT
TF
PD
AX
SU
BR
ST
RS
BT
EL-7
HA
SC
IDX
Description (Cont’d)
STANDARDIZED RELAY
EL-8
SEL661TA
POWER SUPPLY ROUTING
Circuit Diagram
Circuit Diagram
NOTE:
For detailed ground distribution information, refer to “GROUND DISTRIBUTION”, EL-17.
NGEL0005
GI
MA
EM
LC
EC
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
EL-9
AEL409C
HA
SC
IDX
Circuit Diagram (Cont’d)
POWER SUPPLY ROUTING
EL-10
AEL410C
POWER SUPPLY ROUTING
Wiring Diagram — POWER —
Wiring Diagram — POWER —
BATTERY POWER SUPPLY — IGNITION SW. IN ANY POSITION
NOTE:
For detailed ground distribution information, refer to “GROUND DISTRIBUTION”, EL-17.
=NGEL0006
NGEL0006S01
GI
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EM
LC
EC
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
EL-11
HA
SC
AEL411C
IDX
Wiring Diagram — POWER — (Cont’d)
POWER SUPPLY ROUTING
EL-12
AEL412C
POWER SUPPLY ROUTING
Wiring Diagram — POWER — (Cont’d)
ACCESSORY POWER SUPPLY — IGNITION SW. IN ACC OR ON
NOTE:
For detailed ground distribution information, refer to “GROUND DISTRIBUTION”, EL-17.
=NGEL0006S02
GI
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EM
LC
EC
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
EL-13
AEL413C
HA
SC
IDX
Wiring Diagram — POWER — (Cont’d)
POWER SUPPLY ROUTING
IGNITION POWER SUPPLY — IGNITION SW. IN ON AND/OR START
NOTE:
For detailed ground distribution information, refer to “GROUND DISTRIBUTION”, EL-17.
=NGEL0006S03
EL-14
AEL414C
POWER SUPPLY ROUTING
Wiring Diagram — POWER — (Cont’d)
GI
MA
EM
LC
EC
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
EL-15
BT
HA
SC
AEL415C
IDX
Inspection
POWER SUPPLY ROUTING
CEL083
MEL944F
Inspection
FUSE
NGEL0007
NGEL0007S01
쐌 If fuse is blown, be sure to eliminate cause of problem
before installing new fuse.
쐌 Use fuse of specified rating. Never use fuse of more than
specified rating.
쐌 Do not partially install fuse; always insert it into fuse
holder properly.
쐌 Remove fuse for “ELECTRICAL PARTS (BAT)” if vehicle is
not used for a long period of time.
FUSIBLE LINK
NGEL0007S02
A melted fusible link can be detected either by visual inspection or
by feeling with finger tip. If its condition is questionable, use circuit
tester or test lamp.
CAUTION:
쐌 If fusible link should melt, it is possible that critical circuit
(power supply or large current carrying circuit) is shorted.
In such a case, carefully check and eliminate cause of
problem.
쐌 Never wrap outside of fusible link with vinyl tape. Impor-
tant: Never let fusible link touch any other wiring harness,
vinyl or rubber parts.
SBF284E
CIRCUIT BREAKER
NGEL0007S03
For example, when current is 30A, the circuit is broken within 8 to
20 seconds.
Circuit breakers are used in the following systems.
EL-16
GROUND
Ground Distribution
Ground Distribution
MAIN HARNESS
NGEL0171
NGEL0171S01
GI
MA
EM
LC
EC
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
EL-17
AEL706C
HA
SC
IDX
Ground Distribution (Cont’d)
GROUND
EL-18
AEL707C
GROUND
Ground Distribution (Cont’d)
ENGINE ROOM HARNESS
KA24DE
NGEL0171S02
NGEL0171S0201
GI
MA
EM
LC
EC
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
EL-19
HA
AEL708C
SC
IDX
Ground Distribution (Cont’d)
GROUND
EL-20
AEL709C
GROUND
Ground Distribution (Cont’d)
VG33E
NGEL0171S0202
GI
MA
EM
LC
EC
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
EL-21
AEL711C
HA
SC
IDX
Ground Distribution (Cont’d)
GROUND
EL-22
AEL712C
GROUND
Ground Distribution (Cont’d)
ENGINE NO. 2 HARNESS
KA24DE
NGEL0171S08
NGEL0171S0801
GI
MA
EM
LC
EC
FE
CL
MT
AEL710C
AT
TF
PD
AX
SU
BR
ST
RS
BT
EL-23
HA
SC
IDX
Ground Distribution (Cont’d)
GROUND
GENERATOR HARNESS
VG33E
NGEL0171S03
NGEL0171S0301
EL-24
AEL697C
GROUND
Ground Distribution (Cont’d)
ENGINE CONTROL HARNESS
KA24DE
NGEL0171S04
NGEL0171S0401
GI
MA
EM
LC
EC
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
EL-25
HA
AEL713C
SC
IDX
Ground Distribution (Cont’d)
GROUND
VG33E
NGEL0171S0402
EL-26
AEL714C
GROUND
Ground Distribution (Cont’d)
GI
MA
EM
LC
EC
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
EL-27
AEL715C
BT
HA
SC
IDX
Ground Distribution (Cont’d)
GROUND
BODY HARNESS
NGEL0171S05
AEL716C
EL-28
GROUND
Ground Distribution (Cont’d)
BODY NO. 2 HARNESS
NGEL0171S06
GI
MA
EM
LC
EC
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
EL-29
AEL717C
HA
SC
IDX
Ground Distribution (Cont’d)
GROUND
BACK DOOR NO. 2 HARNESS
NGEL0171S07
AEL718C
EL-30
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