1998 NISSAN PICK-UP warning

HEADLAMP - Headlamp Aiming Control -........... 63
System Description .............................................. 63
Wiring Diagram - H/AIM - .................................... 64
PARKING, LICENSE AND TAIL LAMPS............... 66
Wiring Diagram - TAIL/L -/Except for LHD
Models for Europe ............................................... 66
Wiring Diagram - TAIL/L -/LHD Models for
Europe.................................................................. 68
STOP LAMP............................................................ 70
Wiring Diagram - STOP/L - ................................. 70
BACK-UP LAMP...................................................... 71
Wiring Diagram - BACK/L - ................................. 71
REAR FOG LAMP................................................... 72
Wiring Diagram - R/FOG -/LHD Models .............. 72
Wiring Diagram - R/FOG -/RHD Models ............. 73
TURN SIGNAL AND HAZARD WARNING
LAMPS..................................................................... 74
Schematic ............................................................ 74
Wiring Diagram - TURN -/Except 4WD Models
for Europe ............................................................ 75
Wiring Diagram - TURN -/4WD Models for
Europe.................................................................. 77
Trouble Diagnoses ............................................... 80
Combination Flasher Unit Check ......................... 80
ILLUMINATION........................................................ 81
Wiring Diagram - ILL -/LHD Models .................... 81
Wiring Diagram - ILL -/RHD Models.................... 83
INTERIOR AND SPOT LAMPS............................... 85
Wiring Diagram - INT/L - ..................................... 85
Combination Meter............................................... 87
Schematic ............................................................ 89
Wiring Diagram - METER -/LHD Models............. 90
Wiring Diagram - METER -/RHD Models ............ 93
Unified Control Meter System Description .......... 96
Meter/gauge Operation and Odo/Trip Meter
Segment Check in Diagnosis Mode .................... 96
Flexible Print Circuit (FPC) .................................. 97
Trouble Diagnoses ............................................... 98
Electrical Components Inspection ..................... 103
WARNING LAMPS................................................ 105
Schematic .......................................................... 105
Wiring Diagram - WARN -/LHD Models ............ 106
Wiring Diagram - WARN -/RHD Models............ 111
Electrical Components Inspection ..................... 116
WARNING BUZZER.............................................. 117
Wiring diagram - BUZZER -/LHD Models for
Europe................................................................ 117
Wiring diagram - BUZZER -/RHD Models for
Europe................................................................ 118
Electrical Components Inspection ..................... 119
FRONT WIPER AND WASHER............................ 120
System Description ............................................ 120
Wiring Diagram - WIPER -/LHD Models with
Intermittent ......................................................... 122Wiring Diagram - WIPER -/RHD Models with
Intermittent ......................................................... 124
Trouble Diagnoses ............................................. 126
Wiper Installation and Adjustment ..................... 127
Washer Nozzle Adjustment ............................... 128
Washer Tube Layout ......................................... 128
Wiper Linkage .................................................... 129
HEADLAMP WASHER.......................................... 130
Wiring Diagram - HLC - ..................................... 130
Trouble Diagnoses ............................................. 131
Washer Tube Layout ......................................... 131
Check Valve ....................................................... 131
HORN..................................................................... 132
Wiring Diagram - HORN -.................................. 132
CIGARETTE LIGHTER.......................................... 133
Wiring Diagram - CIGAR - ................................. 133
CLOCK................................................................... 134
Wiring Diagram - CLOCK - ................................ 134
REAR WINDOW DEFOGGER............................... 135
Wiring Diagram - DEF - ..................................... 135
Electrical Components Inspection ..................... 136
Filament Check .................................................. 136
Filament Repair.................................................. 137
AUDIO.................................................................... 138
Wiring Diagram - AUDIO -/LHD Models Type-
2 ......................................................................... 138
Wiring Diagram - AUDIO -/LHD Models Type-
3 ......................................................................... 139
Wiring Diagram - AUDIO -/RHD Models ........... 141
Trouble Diagnoses ............................................. 142
CATS (Code) System/For Europe RHD ............ 143
NATS Audio Link/For Europe LHD (KA24E) ..... 144
AUDIO ANTENNA................................................. 146
Manual Antenna ................................................. 146
Power Antenna/Wiring Diagram - P/ANT - ........ 147
Power Antenna .................................................. 148
POWER DOOR MIRROR...................................... 150
Wiring Diagram - MIRROR -.............................. 150
HEATED SEAT...................................................... 152
Wiring Diagram - H/SEAT - ............................... 152
POWER WINDOW................................................. 154
System Description ............................................ 154
Schematic .......................................................... 156
Wiring Diagram - WINDOW -/LHD Models ....... 157
Wiring Diagram - WINDOW -/RHD Models ....... 161
Trouble Diagnoses ............................................. 165
POWER DOOR LOCK........................................... 166
System Description ............................................ 166
Wiring Diagram - D/LOCK - ............................... 167
Trouble Diagnosis .............................................. 169
MULTI-REMOTE CONTROL SYSTEM/FOR
EUROPE................................................................ 173
System Description ............................................ 173
Schematic .......................................................... 174

Supplemental Restraint System (SRS) ``AIR
BAG'' (4WD models)
The Supplemental Restraint System ``AIR BAG'', used along with a seat belt, helps to reduce the risk or
severity of injury to the driver in a frontal collision. The Supplemental Restraint System consists of an air
bag module (located in the center of the steering wheel), a diagnosis sensor unit, warning lamp, wiring har-
ness and spiral cable. Information necessary to service the system safely is included in theRS sectionof
this Service Manual.
WARNING:
lTo 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 dealer.
lImproper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system.
lDo not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses are covered with yellow insulation either just before the
harness connectors or for the complete harness, for easy identification.
Supplemental Restraint System (SRS) ``AIR
BAG'' (2WD models)
The Supplemental Restraint System ``AIR BAG'', used along with a seat belt, helps to reduce the risk or
severity of injury to the driver in a frontal collision. The Supplemental Restraint System consists of an air
bag module (located in the center of the steering wheel), a diagnosis sensor unit, warning lamp and spiral
cable. Information necessary to service the system safely is included in theRS sectionof this Service
Manual.
WARNING:
lTo 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 dealer.
lImproper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system.
lDo not use electrical test equipment on any circuit related to the SRS.
PRECAUTIONS
EL-1

EARTH CONNECT TO CONN. NO. CELL CODE
M1/M54 ACCESSORY RELAY (In fuse block) M14 EL-POWER
AIR BAG DIAGNOSIS SENSOR UNIT (4WD
models)M110 RS-SRS
ASHTRAY ILLUMINATION M34 EL-ILL
BLOWER RELAY (In fuse block) M14 EL-POWER
CHECK CONNECTOR (NA engine) M12 EC-CHOKE
CHECK CONNECTOR (Z engine) M13 EC-CHOKE
CIGARETTE LIGHTER SOCKET M37 EL-CIGAR
COMBINATION FLASHER UNIT M15 EL-TURN
DOOR LOCK TIMER M51 EL-D/LOCK
DOOR SWITCH DRIVER SIDE (For Europe) M118 EL-BUZZER EL-MULTI
ECM (ENGINE CONTROL MODULE) M66 EC-GLOW EC-PLA EC-EGRC/V
FAN SWITCH ILLUMINATION (Except for
Europe and Australia)M403 HA-HEATER HA-A/C,M EL-ILL
FAN SWITCH ILLUMINATION (For Europe and
Australia)M40 HA-HEATER HA-A/C,M EL-ILL
FAN SWITCH (Except for Europe and Australia) M404 EC-FIPOT HA-HEATER HA-A/C,M
FAN SWITCH (For Europe and Australia) M39 HA-HEATER HA-A/C,M
FRONT SEAT LH M119 EL-H/SEAT
FRONT SEAT RH M122 EL-H/SEAT
FRONT WIPER AMPLIFIER
(RHD models without KA engine and LHD mod-
els)M220 EL-WIPER
FRONT WIPER AND WASHER SWITCH M28 EL-WIPER
FRONT WIPER MOTOR
(RHD models without KA engine and LHD mod-
els)M221 EL-WIPER
FUEL FILTER SWITCH (LHD models with die-
sel engine)M259 EL-WARN EL-BUZZER
FUEL PUMP CONTROL MODULE M22 EC-FPCM
FUEL RETURN CONTROL SOLENOID VALVE
(LHD models with NA engine)M257 EC-F/RTN
GLOW CONTROL UNIT
(TD27 engine except for cold areas and QD
engine)M29 EC-GLOW EC-PLA
GLOW CONTROL UNIT (TD27 engine for cold
areas)M30 EC-GLOW EC-PLA
GLOW RELAY-1 (LHD models with diesel
engine except for Europe)M253 EC-GLOW
GLOW RELAY-2 (TD27 engine for cold areas) M256 EC-GLOW
HAZARD SWITCH M41 EL-TURN EL-ILL
HEADLAMP WASHER SWITCH M70 EL-ILL EL-HLC
HEATED SEAT SWITCH LH M602 EL-H/SEAT
HEATED SEAT SWITCH RH M603 EL-H/SEAT
IACV-FICD SOLENOID VALVE (KA engine) M203 EC-FICD HA-A/C,M
IGNITION RELAY (In fuse block) M14 EL-POWER
MULTI-REMOTE CONTROL RELAY-3 M706 EL-MULTI
MULTI-REMOTE CONTROL RELAY-4 M707 EL-MULTI
MULTI-REMOTE CONTROL UNIT M703 EL-MULTI
POWER WINDOW RELAY M9 EL-WINDOW
REAR WINDOW DEFOGGER SWITCH M42 EL-DEF
SEAT BELT SWITCH M109 EL-WARN
SPIRAL CABLE (2WD models with air bag) M26 RS-SRS
COMBINATION METER (4WD WARNING
LAMP)N6 EL-WARN
COMBINATION METER (ABS WARNING
LAMP)N6 BR-ABS EL-WARN
GROUND DISTRIBUTION
EL-14

EARTH CONNECT TO CONN. NO. CELL CODE
M1/M54 COMBINATION METER (AIR BAG WARNING
LAMP)N5 RS-SRS EL-WARN
COMBINATION METER (CLOCK ILLUMINA-
TION)N6 EL-ILL EL-CLOCK
COMBINATION METER (DIGITAL CLOCK) N6 EL-CLOCK
COMBINATION METER (FUEL GAUGE) N5 EL-METER
COMBINATION METER (HIGH BEAM INDICA-
TOR)N5 EL-H/LAMP EL-DTRL EL-DIMDIP
COMBINATION METER (METER ILLUMINA-
TION)N6 EL-ILL
COMBINATION METER (ODO/TRIP METER
ILLUMINATION)N6 EL-ILL
COMBINATION METER (REAR FOG LAMP
INDICATOR)N6 EL-R/FOG
COMBINATION METER (TURN LH INDICA-
TOR)N6 EL-TURN
COMBINATION METER (TURN RH INDICA-
TOR)N6 EL-TURN
COMBINATION METER (UNIFIED METER
CONTROL UNIT)N5 EC-VSS EC-GLOW EL-METER
COMBINATION METER (WATER TEMP.
GAUGE)N5 EL-METER
DOOR MIRROR REMOTE CONTROL SWITCH N3 EL-MIRROR
FRONT WIPER AMPLIFIER (RHD models with
KA engine)F20 EL-WIPER
FRONT WIPER MOTOR (RHD models with KA
engine)F21 EL-WIPER
HEADLAMP AIMING SWITCH N7 EL-H/AIM
INTERIOR LAMP (Single cab and King cab) R4 EL-INT/L
SPOT LAMP R3 EL-INT/L
FUEL TANK GAUGE UNIT (With electric fuel
pump)C3EC-FPCM EC-F/PUMP EL-METER
EL-WARN
FUEL TANK GAUGE UNIT (With mechanical
fuel pump)C4 EL-METER EL-WARN
LICENSE PLATE LAMP LH (With step bumper) T7 EL-TAIL/L
LICENSE PLATE LAMP LH (Without step
bumper)T6 EL-TAIL/L
LICENSE PLATE LAMP RH (With step bumper) T3 EL-TAIL/L
LICENSE PLATE LAMP RH (Without step
bumper)T5 EL-TAIL/L
REAR COMBINATION LAMP LH (BACK-UP)
(A-chassis models, and except for Europe,
Australia and China)T8 EL-BACK/L
REAR COMBINATION LAMP LH (BACK-UP)
(For Europe, Australia and China except
A-chassis models)T9 EL-BACK/L
REAR COMBINATION LAMP LH (REAR FOG)
(LHD models except A-chassis)T9 EL-R/FOG
REAR COMBINATION LAMP LH (TAIL AND
STOP) (A-chassis models, and except for
Europe, Australia and China)T8 EL-TAIL/L EL-STOP/L
REAR COMBINATION LAMP LH (TAIL AND
STOP) (For Europe, Australia and China except
A-chassis models)T9 EL-TAIL/L EL-STOP/L
REAR COMBINATION LAMP LH (TURN SIG-
NAL) (A-chassis models, and except for
Europe, Australia and China)T8 EL-TURN
REAR COMBINATION LAMP LH (TURN SIG-
NAL) (For Europe, Australia and China except
A-chassis models)T9 EL-TURN
REAR COMBINATION LAMP RH (BACK-UP)
(A-chassis models, and except for Europe, Aus-
tralia and China)T1 EL-BACK/L
REAR COMBINATION LAMP RH (BACK-UP)
(For Europe, Australia and China except
A-chassis models)T2 EL-BACK/L
GROUND DISTRIBUTION
EL-15

CAUTION:
If it becomes necessary to start the engine with a booster
battery and jumper cables,
a. Use a 12-volt booster battery.
b. After connecting battery cables, ensure that they are
tightly clamped to battery terminals for good contact.
c. Never add distilled water through the hole used to check
specific gravity.
How to Handle Battery
METHODS OF PREVENTING OVER-DISCHARGE
The following precautions must be taken to prevent over-dis-
charging a battery.
lThe battery surface (particularly its top) should always be
kept clean and dry.
lThe terminal connections should be clean and tight.
lAt every routine maintenance, check the electrolyte level.
This also applies to batteries designated as ``low mainte-
nance'' and ``maintenance-free''.
lWhen the vehicle is not going to be used over a long period
of time, disconnect the negative battery terminal.
lCheck the charge condition of the battery.
Periodically check the specific gravity of the electrolyte. Keep
a close check on charge condition to prevent over-discharge.
CHECKING ELECTROLYTE LEVEL
WARNING:
Do not allow battery fluid to come in contact with skin, eyes,
fabrics, or painted surfaces. After touching a battery, do not
touch or rub your eyes until you have thoroughly washed
your hands. If acid contacts eyes, skin or clothing, immedi-
ately flush with water for 15 minutes and seek medical atten-
tion.
MEL040F
MEL041F
MEL042F
BATTERY
EL-18

Trouble Diagnoses
Before conducting an alternator test, make sure that the battery is fully charged. A 30-volt voltmeter and
suitable test probes are necessary for the test. The alternator can be checked easily by referring to the
Inspection Table.
lBefore starting, inspect the fusible link.
lUse fully charged battery.
GASOLINE ENGINE MODELS
Check the fol-
lowing:
lWarning
lamp bulb
lFuse for
warning lamp
Ignition switch
``ON''Warning lamp
``OFF''Disconnect connector (S, L) and
ground L harness side.Warning lamp
``OFF''
Warning lamp
``ON''Damaged IC
regulator.
Replace.
Warning lamp
``ON''
Engine start.
Engine speed:
1,500 rpmWarning lamp
``ON''Check the following:lDrive beltlFuse for S terminallConnector (S, L terminal) con-
nection
Engine idlingWarning lamp
``OFF''OK
Warning lamp
``ON''
Warning lamp
``OFF''OKEngine speed:
1,500 rpm
(Measure B
terminal volt-
age)More than
15.5VDamaged IC
regulator.
Replace.
No generationField circuit is
open.
Warning lamp: ``CHARGE'' warning lamp in combination meter
Note:
lIf the inspection result is OK even though the charging system is malfunctioning, check the B
terminal connection. (Check the tightening torque.)
lWhen field circuit is open, check condition of rotor coil, rotor slip ring and brush. If necessary,
replace faulty parts with new ones.
Malfunction indicator
The IC regulator warning function activates to illuminate ``CHARGE'' warning lamp, if any of the following
symptoms occur while alternator is operating:
lField circuit is open.
lExcessive voltage is produced.
CHARGING SYSTEM
EL-36

DIESEL ENGINE MODELS
Check the fol-
lowing:
lWarning
lamp bulb
lFuse for
warning lamp
Ignition switch
``ON''Warning lamp
``OFF''Disconnect connector (S, L) and
ground L harness side.Warning lamp
``OFF''
Warning lamp
``ON''Damaged IC
regulator.
Replace.
Warning lamp
``ON''
Engine idlingWarning lamp
``ON''Check the fol-
lowing:
lDrive beltlField circuit
Check the fol-
lowing:
lFuse for S
terminal
lOpen circuit
for S terminal
lIC regulator
Warning lamp
``OFF''Engine speed: 1,500 rpm
(Measure B terminal voltage)More than
15.5V
13 - 15VOK
Warning lamp: ``CHARGE'' warning lamp in combination meter
Note:
lIf the inspection result is OK even though the charging system is malfunctioning, check the B
terminal connection (check the tightening torque).
lWhen field circuit is open, check condition of rotor coil, rotor slip ring and brush. If necessary,
replace faulty parts with new ones.
CHARGING SYSTEM
Trouble Diagnoses (Cont'd)
EL-37

Schematic
HEL340A
TURN SIGNAL AND HAZARD WARNING LAMPS
EL-74