1998 NISSAN PICK-UP fuse diagram

ELECTRICAL SYSTEM
SECTION
EL
When you read wiring diagrams:
lRead GI section, ``HOW TO READ WIRING DIAGRAMS''.
When you perform trouble diagnoses, read GI section, ``HOW TO FOLLOW FLOW CHART IN
TROUBLE DIAGNOSES'' and ``HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRI-
CAL INCIDENT''.
CONTENTS
PRECAUTIONS......................................................... 1
Supplemental Restraint System (SRS) ``AIR
BAG'' (4WD models).............................................. 1
Supplemental Restraint System (SRS) ``AIR
BAG'' (2WD models).............................................. 1
HARNESS CONNECTOR.......................................... 2
Description ............................................................. 2
STANDARDIZED RELAY.......................................... 3
Description ............................................................. 3
POWER SUPPLY ROUTING..................................... 5
Schematic .............................................................. 5
Wiring Diagram - POWER -................................... 6
Fuse ..................................................................... 13
Fusible Link .......................................................... 13
Circuit Breaker Inspection.................................... 13
GROUND DISTRIBUTION....................................... 14
BATTERY................................................................. 18
How to Handle Battery......................................... 18
Battery Test and Charging Chart......................... 21
Service Data and Specifications (SDS) ............... 25
STARTING SYSTEM............................................... 26
Wiring Diagram - START - .................................. 26
Trouble Diagnoses ............................................... 27
Construction ......................................................... 28
Removal and Installation ..................................... 30
Inspection ............................................................. 30
Assembly.............................................................. 32
Service Data and Specifications (SDS) ............... 33
CHARGING SYSTEM.............................................. 34
Wiring Diagram - CHARGE -/Gasoline Engine ... 34
Wiring Diagram - CHARGE -/Diesel Engine ....... 35Trouble Diagnoses ............................................... 36
Construction ......................................................... 38
Removal and Installation ..................................... 39
Disassembly ......................................................... 39
Inspection ............................................................. 39
Assembly.............................................................. 40
Service Data and Specifications (SDS) ............... 41
COMBINATION SWITCH........................................ 42
Check ................................................................... 42
Replacement ........................................................ 43
HEADLAMP - Conventional Type -....................... 44
Wiring Diagram - H/LAMP -/LHD Models ............ 44
Wiring Diagram - H/LAMP -/RHD Models ........... 46
Trouble Diagnoses ............................................... 48
Bulb Replacement................................................ 49
Aiming Adjustment ............................................... 49
Low Beam ............................................................ 50
HEADLAMP - Daytime Light System -................. 51
System Description .............................................. 51
Schematic ............................................................ 53
Wiring Diagram - DTRL - ..................................... 54
Trouble Diagnoses ............................................... 57
Bulb Replacement................................................ 57
Aiming Adjustment ............................................... 57
HEADLAMP - Dim-dip Lamp System -................. 58
System Description .............................................. 58
Schematic ............................................................ 58
Wiring Diagram - DIMDIP -.................................. 59
Trouble Diagnoses ............................................... 62
Bulb Replacement................................................ 62
Aiming Adjustment ............................................... 62
EL

Description
Number Item Description
V1Power conditionlThis shows the condition when the system receives battery positive voltage (can
be operated).
V2Fusible link
lThe double line shows that this is a fusible link.
lThe open circle shows current flow in, and the shaded circle shows current flow
out.
V3Fusible link/fuse locationlThis shows the location of the fusible link or fuse in the fusible link or fuse box.
For arrangement, refer to EL section (``POWER SUPPLY ROUTING'').
V4Fuse
lThe single line shows that this is a fuse.
lThe open circle shows current flow in, and the shaded circle shows current flow
out.
V5Current ratinglThis shows the current rating of the fusible link or fuse.
V6Connectors
lThis shows that connectorE3is female and connectorM1is male.
lThe G/R wire is located in the 1A terminal of both connectors.
lTerminal number with an alphabet (1A, 5B, etc.) indicates that the connector is
SMJ connector. Refer to GI-17.
V7Optional splicelThe open circle shows that the splice is optional depending on vehicle application.
V8SplicelThe shaded circle shows that the splice is always on the vehicle.
V9Page crossinglThis arrow shows that the circuit continues to an adjacent page.
lThe A will match with the A on the preceding or next page.
V10Common connectorlThe dotted lines between terminals show that these terminals are part of the same
connector.
V11Option abbreviationlThis shows that the circuit is optional depending on vehicle application.
V12RelaylThis shows an internal representation of the relay. For details, refer to EL section
(``STANDARDIZED RELAY'').
V13ConnectorslThis shows that the connector is connected to the body or a terminal with bolt or
nut.
V14Wire color
lThis shows a code for the color of the wire.
B = Black BR = Brown
W = White OR = Orange
R = Red P = Pink
G = Green PU = Purple
L = Blue GY = Gray
Y = Yellow SB = Sky Blue
LG = Light Green CH = Dark Brown
DG = Dark Green
When the wire color is striped, the base color is given first, followed by the stripe
color as shown below:
Example: L/W = Blue with White Stripe
V15Option descriptionlThis shows a description of the option abbreviation used on the page.
V16Switch
lThis shows that continuity exists between terminals 1 and 2 when the switch is in
the A position. Continuity exists between terminals 1 and 3 when the switch is in
the B position.
V17Assembly partslConnector terminal in component shows that it is a harness incorporated assem-
bly.
V18Cell codelThis identifies each page of the wiring diagram by section, system and wiring dia-
gram page number.
HOW TO READ WIRING DIAGRAMS
GI-11

Number Item Description
V19Current flow arrow
lArrow indicates electric current flow, especially where the direction of standard
flow (vertically downward or horizontally from left to right) is difficult to follow.
lA double arrow ``bÐ
c'' shows that current can flow in either direction depending
on circuit operation.
V20System branchlThis shows that the system branches to another system identified by cell code
(section and system).
V21Page crossing
lThis arrow shows that the circuit continues to another page identified by cell code.
lThe C will match with the C on another page within the system other than the next
or preceding pages.
V22Shielded linelThe line enclosed by broken line circle shows shield wire.
V23Component box in wave
linelThis shows that another part of the component is also shown on another page
(indicated by wave line) within the system.
V24Component namelThis shows the name of a component.
V25Connector number
lThis shows the connector number.
lThe letter shows which harness the connector is located in.
Example:M: main harness. For detail and to locate the connector, refer to EL sec-
tion (``Main Harness'', ``HARNESS LAYOUT''). A coordinate grid is included for
complex harnesses to aid in locating connectors.
V26Ground (GND)lThe line spliced and grounded under wire color shows that ground line is spliced
at the grounded connector.
V27Ground (GND)lThis shows the ground connection.
V28Connector viewslThis area shows the connector faces of the components in the wiring diagram on
the page.
V29Common componentlConnectors enclosed in broken line show that these connectors belong to the
same component.
V30Connector colorlThis shows a code for the color of the connector. For code meaning, refer to wire
color codes, Number
V14of this chart.
V31Fusible link and fuse box
lThis shows the arrangement of fusible link(s) and fuse(s), used for connector
views of ``POWER SUPPLY ROUTING'' in EL section.
The open square shows current flow in, and the shaded square shows current
flow out.
V32Reference arealThis shows that more information on the Super Multiple Junction (SMJ) and Joint
Connectors (J/C) exists on the foldout page. Refer to GI-17 for details.
HOW TO READ WIRING DIAGRAMS
Description (Cont'd)
GI-12

EVAP vapor lines inspection ....................... MA-22
Electrical diagnoses ...................................... GI-21
Engine compartment .................................... BT-44
Engine control module (ECM) ....................... EC-5
Engine coolant temperature sensor
(ECTS) (KA24 engine) ............................. EC-95
Engine coolant temperature sensor
(ECTS) (TD25 engine) ........................... EC-209
Engine oil filter replacement
(KA24 engine).......................................... MA-20
Engine oil filter replacement
(TD25 engine).......................................... MA-24
Engine oil precautions .................................... GI-4
Engine oil replacement
(KA24 engine).......................................... MA-19
Engine oil replacement
(TD25 engine).......................................... MA-24
Engine outer component parts
(KA24 engine)............................................ EM-9
Engine outer component parts
(TD25 engine).......................................... EM-49
Engine removal (KA24 engine) ................... EM-36
Engine removal (TD25 engine) ................... EM-69
Engine room - See Engine
compartment............................................. BT-44
Engine speed sensor ................................. EC-219
Evaporative emission (EVAP) system ......... EC-19
Exhaust system inspection.......................... MA-32
Exhaust system .............................................. FE-5
Exterior ......................................................... BT-24
F
F/PUMP - Wiring diagram...........................EC-153
FCUT - Wiring diagram ............................. EC-225
FICD - Wiring diagram (KA24 engine) ...... EC-168
FICD - Wiring diagram (TD25 engine) ...... EC-230
Fan switch.................................................... HA-43
Fast idle cam (FIC) inspection and
adjustment................................................ EC-24
Final drive disassembly (C200) ................... PD-34
Final drive disassembly (H233B)................. PD-56
Final drive pre-inspection (C200) ................ PD-34
Final drive pre-inspection (H233B) .............. PD-56
Final drive removal and installation ............. PD-15
Floor trim ...................................................... BT-15
Flow charts.................................................... GI-31
Fluids ........................................................... MA-12
Flywheel (clutch) .......................................... CL-12
Flywheel runout (KA24 engine)................... EM-45
Flywheel runout (TD25 engine)................... EM-80
Fog lamp, rear .............................................. EL-72
Fork rod (M/T) (FS5R30A) .......................... MT-38
Fork rod (M/T) (FS5W71C) ......................... MT-17
Front axle ..................................................... FA-12
Front bumper.................................................. BT-5
Front case (Transfer) ..................................... TF-8
Front combination lamp removal and
installation................................................... BT-5Front disc brake ........................................... BR-21
Front door..................................................... BT-10
Front drive shaft (Transfer) ............................ TF-9
Front final drive disassembly (4WD) ........... PD-17
Front final drive pre-inspection (4WD) ........ PD-17
Front final drive removal and installa-
tion (4WD) ................................................ PD-14
Front seat belt................................................ RS-3
Front seat ..................................................... BT-30
Front suspension.......................................... FA-26
Front washer .............................................. EL-120
Front wiper ................................................. EL-120
Fuel check valve .......................................... EC-20
Fuel cut control (at no load & high
engine speed) (KA24 engine) .................. EC-18
Fuel cut control (at no load & high
engine speed) ........................................ EC-225
Fuel filter replacement (KA24 engine) ........ MA-18
Fuel filter replacement (TD25 engine) ........ MA-27
Fuel injector ............................................... EC-144
Fuel line inspection (KA24 engine) ............. MA-18
Fuel line inspection (TD25 engine) ............. MA-28
Fuel precautions ............................................. GI-5
Fuel pressure check .................................... EC-22
Fuel pressure release .................................. EC-22
Fuel pump .................................................. EC-151
Fuel pump relay ......................................... EC-156
Fuel system .................................................... FE-3
Fuel tank vacuum relief valve...................... EC-20
Fuse block.................................................. Foldout
Fuse.............................................................. EL-13
Fusible link ................................................... EL-13G
GLOW - Wiring diagram .............................EC-197
Garage jack and safety stand....................... GI-49
Gear components (M/T) (FS5R30A) ........... MT-36
Gear components (M/T) (FS5W71C) .......... MT-15
Glass ............................................................ BT-10
Glow plug ................................................... EC-208
Glow relay .................................................. EC-208
Grease ......................................................... MA-12
Ground clearance ......................................... GI-44
Ground distribution ....................................... EL-14
H
H/AIM - Wiring diagram .................................EL-64
H/LAMP - Wiring diagram ............................ EL-44
H02S - Wiring diagram .............................. EC-124
HFC134a (R134a) system precaution ........... HA-2
HFC134a (R134a) system service
procedure ................................................. HA-48
HFC134a (R134a) system service
tools............................................................ HA-8
HFC134a system service equipment
precaution ................................................ HA-10
ALPHABETICAL INDEX
IDX-4

Main Power Supply and Ground Circuit
Check
POWER SUPPLY FUSE CHECK FOR A/C SYSTEM
Check the following fuses.
l15A fuse (No.19 and20 ) for blower motor.
l7.5A fuse (No.21 ) for thermo control amp.
For detailed circuit, refer to ``Wiring Diagram''.
THERMO CONTROL AMP. CHECK
Power supply circuit check
Check power supply circuit for thermo control amp. with ignition
switch ON.
1. Disconnect thermo control amp. harness connector.
2. Connect voltmeter from harness side.
3. Measure voltage across terminal No.
V1and body ground.
Voltmeter terminal
Voltage
Å@
V1Body ground Approx. 12V
Ground circuit check
Check body ground circuit for thermo control amp. with ignition
switch ON, air conditioner switch ON and fan switch ON.
1. Disconnect thermo control amp. harness connector.
2. Connect ohmmeter from harness side.
3. Check for continuity between terminal No.
V2and body
ground.
Ohmmeter terminal
Continuity
Å@
V2Body ground Yes
If the ground circuit is NG, check the following.
lA/C switch (Refer to HA-43.)
lFan switch (Refer to HA-43.)
lHarness for open or short between thermo control amp. and
A/C switch
lHarness for open or short between A/C switch and fan switch
lFan switch ground circuit
SHA877E
RHA319GA
SHA102F
TROUBLE DIAGNOSES
HA-36

INCIDENTFlow chart
No.
1 Fan fails to rotate.
2 Fan does not rotate at 1-speed.
3 Fan does not rotate at 2-speed.
4 Fan does not rotate at 3-speed.
5 Fan does not rotate at 4-speed.
Diagnostic Procedure 1
SYMPTOM: Blower motor does not rotate.
lPerform PRELIMINARY CHECK 1 before referring to the
following flow chart.
Check if blower motor rotates properly
at each fan speed.
Conduct checks as per flow chart at
left.
cVE
cVD
cVC
cVB
(Go to next page.)
CHECK POWER SUPPLY FOR BLOWER
MOTOR.
Disconnect blower motor harness connec-
tor.
Do approx. 12 volts exist between blower
motor harness terminal No.
V1and body
ground?
Yes
cNo
Check 15A fuses (No.19
and No.20 , located in
the fuse block).
(Refer to ``POWER SUP-
PLY ROUTING'' in EL sec-
tion and Wiring Diagram.)
1. Turn fan control knob to any position
except OFF.
2. Check circuit continuity between blower
motor harness terminal No.
V2and
body ground.
Continuity should exist.
OK
cNG
Reconnect blower motor
harness connector.
CHECK BLOWER MOTOR.
(Refer to Electrical Components Inspec-
tion.) (HA-43)
NG
Replace blower motor.
.
CHECK BLOWER MOTOR CIRCUIT
BETWEEN BLOWER MOTOR AND
RESISTOR.
Do approx. 12 volts exist between resistor
harness terminal No.
V1and body
ground?
Yes
cNo
Disconnect blower motor
and resistor harness con-
nectors.
Disconnect fan switch harness connector.Note
Check circuit continuity
between blower motor har-
ness terminal No.
V2and
resistor harness terminal
No.
V1.
Continuity should exist.
If OK, check harness for
short.
VA(Go to next page.)
Note:
If the result is NG after checking circuit continuity, repair harness or con-
nector.
SHA872E
SHA873E
RHA320G
RHA321G
.
.
.
.
..
.
TROUBLE DIAGNOSES
HA-37

Diagnostic Procedure 2
EXCEPT FOR KA ENGINE MODELS
SYMPTOM: Magnet clutch does not engage when A/C
switch and fan switch are ON.
lPerform PRELIMINARY CHECK 1 before referring to the
following flow chart.
CHECK POWER SUPPLY FOR COM-
PRESSOR.
Disconnect compressor harness connec-
tor.
Do approx. 12 volts exist between com-
pressor harness terminal No.
V1and body
ground?
No
cYes
Check the following.
lMagnet clutch coillThermal protector (Except
for the Middle East)
NG
Replace magnet clutch.
Refer to HA-60.
Note
Check circuit continuity between A/C relay
harness terminal No.
V5and compressor
harness terminal No.
V1.
Continuity should exist.
If OK, check harness for short.
OK
CHECK POWER SUPPLY FOR A/C
RELAY.
Do approx. 12 volts exist between A/C
relay harness terminal No.
V3and body
ground?
Yes
cNo
Check power supply circuit
and 7.5A fuse (No.
21 ,
located in the fuse block).
(Refer to ``POWER SUP-
PLY ROUTING'' in EL sec-
tion and Wiring Diagram.)
CHECK POWER SUPPLY FOR A/C
RELAY.
Do approx. 12 volts exist between A/C
relay harness terminal No.
V1and body
ground?
No
cYes
Check power supply circuit
and 7.5A fuse (No.
21 ,
located in the fuse block).
(Refer to ``POWER SUP-
PLY ROUTING'' in EL sec-
tion and Wiring Diagram.)
CHECK A/C RELAY AFTER DISCON-
NECTING IT.
Refer to HA-44.
OK
cNG
Replace A/C relay.
Reconnect A/C relay.
Note
Check circuit continuity between A/C relay
harness terminal No.
V2and triple-pres-
sure switch harness terminal No.
V4.
Continuity should exist.
If OK, check harness for short.
OK
VA(Go to next page.)
Note:
If the result is NG after checking circuit continuity, repair harness or con-
nector.
RHA325G
RHA748FD
RHA359G
RHA375G
RHA327GA
.
.
.
.
.
.
.
.
TROUBLE DIAGNOSES
HA-39

FOR KA ENGINE MODELS
SYMPTOM: Magnet clutch does not engage when A/C
switch and fan switch are ON.
lPerform PRELIMINARY CHECK 1 before referring to the
following flow chart.
CHECK POWER SUPPLY FOR COM-
PRESSOR.
Disconnect compressor harness connec-
tor.
Do approx. 12 volts exist between com-
pressor harness terminal No.
V1and body
ground?
No
cYes
Check the following.
lMagnet clutch coil
lThermal protector
NG
Replace magnet clutch.
Refer to HA-60.
Note
Check circuit continuity between A/C relay
harness terminal No.
V5and compressor
harness terminal No.
V1.
Continuity should exist.
If OK, check harness for short.
OK
CHECK POWER SUPPLY FOR A/C
RELAY.
Do approx. 12 volts exist between A/C
relay harness terminal No.
V3and body
ground?
Yes
cNo
Check power supply circuit
and 7.5A fuse (No.
21 ,
located in the fuse block).
(Refer to ``POWER SUP-
PLY ROUTING'' in EL sec-
tion and Wiring Diagram.)
CHECK POWER SUPPLY FOR A/C
RELAY.
Do approx. 12 volts exist between A/C
relay harness terminal No.
V1and body
ground?
Yes
cNo
Check power supply circuit
and 7.5A fuse (No.
21 ,
located in the fuse block).
(Refer to ``POWER SUP-
PLY ROUTING'' in EL sec-
tion and Wiring Diagram.)
CHECK A/C RELAY AFTER DISCON-
NECTING IT.
Refer to HA-44.
OK
cNG
Replace A/C relay.
Reconnect A/C relay.
VA
(Go to next page.)
Note:
If the result is NG after checking circuit continuity, repair harness or con-
nector.
RHA333G
RHA334G
RHA359G
RHA375G
.
.
.
.
.
.
.
TROUBLE DIAGNOSES
Diagnostic Procedure 2 (Cont'd)
HA-41