1999 NISSAN PICK-UP fuse diagram

Magnet Clutch
DIAGNOSTIC PROCEDURE
Except for KA engine models
SYMPTOM: Magnet clutch does not engage when A/C
switch and fan switch are ON.
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-69 in D22
SERVICE MANUAL, Publi-
cation No. SM7E-0D22G1.
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 Nos.
V1,V3and
body ground?
Yes
cNo
Check power supply circuit
and 7.5A fuse (No.
23,
located in the fuse block).
(Refer to ªPOWER SUP-
PLY ROUTINGº in EL sec-
tion and Wiring Diagram.)
CHECK A/C RELAY AFTER DISCON-
NECTING IT.
Refer to HA-2021.
OK
cNG
Replace A/C relay.
TD25 and TD25Ti engines
Reconnect A/C relay.
cVA(Go to next page.)
Except for, TD25 and
TD25Ti engines
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
VB(Go to next page.)
Note:
If the result is NG or No after checking circuit continuity, repair harness or
connector.
RHA325G
RHA748FD
RHA464H
RHA327GB
.
.
.
.
.
.
.
TROUBLE DIAGNOSESMANUAL
HA-2014

For KA engine models
SYMPTOM: Magnet clutch does not engage when A/C
switch and fan switch are ON.
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
Refer to HA-2021.
NG
Replace magnet clutch.
Refer to HA-69 in D22 Ser-
vice Manual, Publication
No. SM7E-0D22G1.
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.
23,
located in the fuse block).
(Refer to ªPOWER SUP-
PLY ROUTINGº 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.
23,
located in the fuse block).
(Refer to ªPOWER SUP-
PLY ROUTINGº in EL sec-
tion and Wiring Diagram.)
CHECK A/C RELAY AFTER DISCON-
NECTING IT.
Refer to HA-2021.
OK
cNG
Replace A/C relay.
Reconnect A/C relay.
VA
(Go to next page.)
Note:
If the result is NG or No after checking circuit continuity, repair harness or
connector.
RHA333G
RHA334G
RHA359G
RHA375G
.
.
.
.
.
.
.
TROUBLE DIAGNOSESMANUAL
Magnet Clutch (Cont'd)
HA-2017

VA
NoteNote
CHECK COIL SIDE CIRCUIT OF A/C
RELAY.
Do approx. 12 volts exist between ECM
harness terminal No.
V11orV23and body
ground?
Yes
cNo
Check circuit continuity
between A/C relay har-
ness terminal No.
V2and
ECM harness terminal No.
V11orV23.
Continuity should exist.
If OK, check harness for
short.
Note
CHECK VOLTAGE FOR THERMO CON-
TROL AMP.
Do approx. 12 volts exist between thermo
control amp. harness terminal No.
V3and
body ground?
Yes
cNo
VC(Go to HA-2020.)
CHECK POWER SUPPLY FOR
THERMO CONTROL AMP.
Do approx. 12 volts exist between thermo
control amp. harness terminal No.
V1and
body ground?
Yes
cNo
Check power supply circuit
and 7.5A fuse (No.
23,
located in the fuse block.)
(Refer to ªPOWER SUP-
PLY ROUTINGº in EL sec-
tion and Wiring Diagram.)
Note
Check circuit continuity between thermo
control amp. harness terminal No.
V2and
body ground.
Continuity should exist.
If OK, check harness for short.
NG
cOK
Replace thermo control
amp.
Note
Chek circuit continuity between thermo
control amp. harness terminal No.
V2and
A/C switch harness terminal No.
V13.
Continuity should exist.
If OK, check harness for short.
OK
VB(Go to next page.)
Note:
If the result is NG or No after checking circuit continuity,
repair harness or connector.
RHA335GA
RHA336GA
RHA338GA
RHA319GB
SHA102FA
.
.
.
.
.
.
TROUBLE DIAGNOSESMANUAL
Magnet Clutch (Cont'd)
HA-2018

VA
Disconnect auto amp. and fan control
amp. harness connector.
Note
Does continuity exist between auto amp.
harness terminal No.
V17and fan control
amp. harness terminal No.
V2?
Continuity should exist.
If OK, check harness for short.
Yes
CHECK FAN FEED BACK CIRCUIT.
Do approx. 12 volts exist between auto
amp. harness terminal No.
V20and body
ground?
Yes
cNo
Check power supply circuit
and 15A fuses (No.
21
and22, located in the fuse
block).
Refer to EL section (ªWir-
ing Diagramº, ªPOWER
SUPPLY ROUTINGº).
Note
Do approx. 12 volts exist between auto
amp. harness terminal No.
V18and body
ground?
Yes
cNo
Check circuit continuity
between blower motor har-
ness terminal No.
V2and
auto amp. harness terminal
No.
V18.
Continuity should exist.
If OK, check harness for
short.
Replace auto amp.
Note:
If the result is NG or No after checking circuit continuity, repair harness
or connector.
RHA491H
RHA648GA
RHA649GA
RHA650GA
RHA492H
.
.
.
.
.
TROUBLE DIAGNOSESAUTO
Blower Motor (Cont'd)
HA-2066

DIAGNOSTIC PROCEDURE
SYMPTOM: Magnet clutch does not engage when A/C
switch and fan switch are ON.
CHECK POWER SUPPLY FOR COM-
PRESSOR.
Disconnect compressor harness connector.
Do approx. 12 volts exist between com-
pressor harness terminal No.
V1and body
ground?
No
cYes
Check magnet clutch coil.
NG
Replace magnet clutch.
Refer to HA-69 in D22 SER-
VICE MANUAL, Publication
No. SM8E-0D22E0E.
Disconnect A/C relay.
Note
CHECK CIRCUIT CONTINUITY
BETWEEN A/C RELAY HARNESS TER-
MINAL NO.
V5AND COMPRESSOR
HARNESS TERMINAL NO.
V1.
Continuity should exist.
If OK, check harness for short.
OK
CHECK POWER SUPPLY FOR A/C
RELAY.
Disconnect A/C relay.
Do approx. 12 volts exist between A/C
relay harness terminal Nos.
V1,V3and
body ground?
Yes
cNo
CHECK POWER SUPPLY
CIRCUIT AND 7.5A
(No.
23) FUSE AT FUSE
BLOCK.
Refer to EL section (ªWir-
ing Diagramº, ªPOWER
SUPPLY ROUTINGº).
CHECK A/C RELAY AFTER DISCON-
NECTING IT.
Refer to HA-2073.
OK
cNG
Replace A/C relay.
VA
(Go to next page.)
Note:
If the result is NG or No after checking circuit continuity, repair harness or
connector.
RHA494H
RHA096GD
RHA495H
RHA496H
.
.
.
.
.
.
TROUBLE DIAGNOSESAUTO
Magnet Clutch (Cont'd)
HA-2070

VA
Note
Check circuit continuity between A/C relay
harness terminal No.
V2and thermo
switch harness terminal No.
V2.
Continuity should exist.
If OK, check harness for short.
OK
CHECK THERMO SWITCH.
Refer to HA-2074.
OK
cNG
Replace thermo switch.
Note
Check circuit continuity between thermo
switch harness terminal No.
V1and
triple-pressure switch harness terminal
No.
V4.
Continuity should exist.
If OK, check harness for short.
OK
CHECK TRIPLE-PRESSURE SWITCH.
Refer to HA-2073.
OK
cNG
Check refrigerant charge
amount.
OK
Note
Check circuit continuity between triple-
pressure switch harness terminal No.
V1
and thermo control amp. harness terminal
No.
V3.
Continuity should exist.
If OK, check harness for short.
OKReplace triple-pressure
switch.
CHECK POWER SUPPLY FOR
THERMO CONTROL AMP.
Do approx. 12 volts exist between thermo
control amp. harness terminal No.
V1and
body ground?
Yes
cNo
Check power supply circuit
and 7.5A fuse (No.
23,
located in fuse block).
(Refer to ªPOWER SUP-
PLY ROUTINGº in EL sec-
tion and Wiring Diagram.)
VB
(Go to next page.)
Note:
If the result is NG or No after checking circuit continuity, repair harness or
connector.
RHA980G
RHA981G
RHA328GA
RHA319GB
.
.
.
.
..
.
.
TROUBLE DIAGNOSESAUTO
Magnet Clutch (Cont'd)
HA-2071

A
A/C harness layout (auto A/C)..................HA-2026
A/C operational check...............................HA-2041
A/C relay .........................................HA-2021, 2073
A/C self-diagnoses (auto A/C) ..................HA-2034
A/C switch .................................................HA-2021
A/C system description (auto A/C) ...........HA-2023
A/C trouble diagnoses (manual A/C) ........HA-2003
A/C, A - Wiring diagram............................HA-2028
A/C, M - Wiring diagram ...........................HA-2005
AAC/V - Wiring diagram ...........................EC-2011
Air bag.......................................................RS-2004
Air bag disposal ........................................RS-2012
Air flow meter - See Mass air flow
sensor....................................................EC-2008
Air mix door control linkage
adjustment .............................................HA-2057
Air mix door motor ....................................HA-2057
Alternator ...................................................EL-2016
Ambient sensor .........................................HA-2080
Antenna .....................................................EL-2103
Anti-lock brake system - Wiring
diagram .......................................BR-2004, 2007
Aspirator motor .........................................HA-2084
Audio and A/C control removal and
installation - See Instrument panel........BT-2004
Automatic amplifier .........................HA-2032, 2045
Auxiliary air control (AAC) valve ...............EC-2011
B
Back-up lamp.............................................EL-2035
Back-up lamp switch (M/T) .......................MT-2002
Baulk ring (M/T) ........................................MT-2003
C
Camshaft position sensor (CMPS) ...........EC-2007
Center bearing assembly (propeller
shaft) .....................................................PD-2006
CHARGE - Wiring diagram .......................EL-2013
Charging system........................................EL-2013
CIGAR - Wiring diagram ...........................EL-2094
Cigarette lighter .........................................EL-2094
Clock ..........................................................EL-2095
CLOCK - Wiring diagram ..........................EL-2095
CMPS - Wiring diagram ............................EC-2007
Collision diagnosis ....................................RS-2039
Combination meter ....................................EL-2049
Combination meter removal and instal-
lation - See Instrument panel ................BT-2004
Combination switch ...................................EL-2017
Control units (terminal arrangement) ........EL-2176
Cooling fan control system........................LC-2002
Counter gear (M/T) ...................................MT-2003
Coupling sleeve (M/T) ..............................MT-2003Crank angle sensor built into distribu-
tor - See Camshaft position sensor ......EC-2007
Crankshaft position sensor (POS) ............EC-2007
Crankshaft position sensor (REF) ............EC-2007
Cylinder head ...........................................EM-2003
D
Daytime light system .................................EL-2022
DEF - Wiring diagram................................EL-2096
Diagnosis sensor unit ...............................RS-2007
Differential carrier assembly .....................PD-2008
Dim-dip lamp system .................................EL-2025
Dimensions.................................................GI-2007
Door, front .................................................BT-2003
E
ECCS relay ...............................................EC-2005
EGR - Wiring diagram ..............................EC-2027
EGRC/V - Wiring diagram ........................EC-2013
Engine control circuit diagram ..................EC-2004
Engine outer component parts .................EM-2002
EVAP canister purge control solenoid
valve ......................................................EC-2013
F
F/HEAT - Wiring diagram .........................EC-2033
F/PUMP - Wiring diagram.........................EC-2015
Fan control amp. .......................................HA-2064
Fan switch .................................................HA-2021
FICD - Wiring diagram....................EC-2018, 2034
Fog lamp, rear ...........................................EL-2036
Fork rod (M/T)...........................................MT-2006
Front door ..................................................BT-2003
Front passenger air bag ...........................RS-2004
Front suspension .......................................FA-2002
Front wiper.................................................EL-2086
Fuel pump .................................................EC-2015
Fuel pump relay ........................................EC-2015
Fuse block .................................................EL-2175
G
Gauges ......................................................EL-2049
Gear components (M/T) ...........................MT-2003
Ground clearance.......................................GI-2007
H
H/AIM - Wiring diagram .............................EL-2028
H/LAMP - Wiring diagram .........................EL-2018
H02S - Wiring diagram .............................EC-2010
ALPHABETICAL INDEX
IDX-2002