Observe the following precautions to ensure safe and proper
servicing. These precautions are not described in each indi-
vidual section.
Precaution for Supplemental Restraint System
(SRS) ``AIR BAG'' and ``SEAT BELT
PRE-TENSIONER''
The Supplemental Restraint System such as ``AIR BAG'' and
``SEAT BELT PRE-TENSIONER'' used along with a seat belt, helps
to reduce the risk or severity of injury to the driver and front pas-
senger in a frontal collision. The SRS system composition which is
available to NISSAN MODEL Y61 is as follows (The composition
varies according to the destination.):
Driver air bag module (located in the center of the steering wheel),
front passenger air bag module (located on the instrument panel on
passenger side), seat belt pre-tensioner, a diagnosis sensor unit,
warning lamp, wiring harness and spiral cable.
Information necessary to service the system safely is included in
theRS sectionof 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 in¯ation, all main-
tenance must be performed by an authorized NISSAN
dealer.
+Improper maintenance, including incorrect removal and
installation of the SRS, can lead to personal injury caused
by unintentional activation of the system. For removal of
Spiral Cable and Air Bag Module, see the RS section.
+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 are covered with yellow
insulation either just before the harness connectors or for
the complete harness are related to the SRS.
SGI646
PRECAUTIONS
GI-1
Engine compartment
There are several reasons a vehicle or engine vibration could
cause an electrical complaint. Some of the things to check for are:
+Connectors not fully seated.
+Wiring harness not long enough and is being stressed due to
engine vibrations or rocking.
+Wires laying across brackets or moving components.
+Loose, dirty or corroded ground wires.
+Wires routed too close to hot components.
To inspect components under the hood, start by verifying the integ-
rity of ground connections. (Refer to GROUND INSPECTION
described later.) First check that the system is properly grounded.
Then check for loose connection bygently shakingthe wiring or
components as previously explained. Using the wiring diagrams
inspect the wiring for continuity.
Behind the instrument panel
An improperly routed or improperly clamped harness can become
pinched during accessory installation. Vehicle vibration can aggra-
vate a harness which is routed along a bracket or near a screw.
Under seating areas
An unclamped or loose harness can cause wiring to be pinched by
seat components (such as slide guides) during vehicle vibration. If
the wiring runs under seating areas, inspect wire routing for pos-
sible damage or pinching.
HEAT SENSITIVE
The owner's problem may occur during hot weather or after car has
sat for a short time. In such cases you will want to check for a heat
sensitive condition.
To determine if an electrical component is heat sensitive, heat the
component with a heat gun or equivalent.
Do not heat components above 60ÉC (140ÉF).If incident occurs
while heating the unit, either replace or properly insulate the com-
ponent.
SGI842
HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT
Incident Simulation Tests (Cont'd)
GI-22
Supplemental Restraint System (SRS) ``AIR
BAG'' and ``SEAT BELT PRE-TENSIONER''
The Supplemental Restraint System such as ``AIR BAG'' and ``SEAT BELT PRE-TENSIONER'' used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger in a frontal collision.
The SRS system composition which is available to NISSAN MODEL Y61 is as follows (The composition var-
ies according to the destination.):
Driver air bag module (located in the center of the steering wheel), front passenger air bag module (located
on the instrument panel on passenger side), seat belt pre-tensioner, a diagnosis sensor unit, warning lamp,
wiring harness and spiral cable.
Information necessary to service the system safely is included in theRS sectionof 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 in¯ation, all maintenance must be performed
by an authorized NISSAN 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 RS section.
+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 covered with yellow insulation either just before
the harness connectors or for the complete harness are related to the SRS.
Precautions for Working with HFC-134a
(R-134a)
WARNING:
+CFC-12 (R-12) refrigerant and HFC-134a (R-134a) refrigerant are not compatible. These refriger-
ants must never be mixed, even in the smallest amounts. If the refrigerants are mixed, compres-
sor failure is likely to occur.
+Use only speci®ed lubricant for the HFC-134a (R-134a) A/C system and HFC-134a (R-134a) com-
ponents. If lubricant other than that speci®ed is used, compressor failure is likely to occur.
+The speci®ed HFC-134a (R-134a) lubricant rapidly absorbs moisture from the atmosphere. The
following handling precautions must be observed:
a: When removing refrigerant components from a vehicle, immediately cap (seal) the component
to minimize the entry of moisture from the atmosphere.
b: When installing refrigerant components to a vehicle, do not remove the caps (unseal) until
just before connecting the components. Connect all refrigerant loop components as quickly
as possible to minimize the entry of moisture into system.
c: Only use the speci®ed lubricant from a sealed container. Immediately reseal containers of
lubricant. Without proper sealing, lubricant will become moisture saturated and should not
be used.
d: Avoid breathing A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose
and throat. Use only approved recovery/recycling equipment to discharge HFC-134a (R-134a)
refrigerant. If accidental system discharge occurs, ventilate work area before resuming ser-
vice. Additional health and safety information may be obtained from refrigerant and lubricant
manufacturers.
e: Do not allow lubricant (Nissan A/C System Oil Type S) to come in contact with styrofoam
parts. Damage may result.
PRECAUTIONS AND PREPARATIONMANUAL AND AUTO
HA-1
COMPONENT INSPECTION
Ambient sensor
After disconnecting ambient sensor harness connector, measure
resistance between terminalsj
9andj24at sensor harness side,
using the table below.
Temperature ÉC (ÉF) Resistance kW
þ15 (5) 12.73
þ10 (14) 9.92
þ5 (23) 7.80
0 (32) 6.19
5 (41) 4.95
10 (50) 3.99
15 (59) 3.24
20 (68) 2.65
25 (77) 2.19
30 (86) 1.81
35 (95) 1.51
40 (104) 1.27
45 (113) 1.07
In-vehicle Sensor
COMPONENT DESCRIPTION
In-vehicle sensor
The in-vehicle sensor is located on instrument lower panel. It con-
verts variations in temperature of compartment air drawn from the
aspirator into a resistance value. It is then input into the auto ampli-
®er.
Aspirator
The aspirator is located in front of heater unit. It produces vacuum
pressure due to air discharged from the heater unit, continuously
taking compartment air in the aspirator.
RHA674G
RHA675G
RHA636F
RHA482A
TROUBLE DIAGNOSESAUTO
Ambient Sensor (Cont'd)
HA-105
Ventilation Air Filter
FUNCTION
Air inside passenger compartment is kept clean at either recircula-
tion or fresh mode by installing ventilation air ®lter into cooling unit.
REPLACEMENT TIMING
Replace ventilation air ®lter.
Refer to ``PERIODIC MAINTENANCE'' in MA section.
Caution label is ®xed inside the glove box.
REPLACEMENT PROCEDURES
+Remove glove box.
+Remove instrument reinforcement from instrument panel.
+Remove ventilation air ®lter ®xed clip.
+Take out ventilation air ®lter from cooling unit.
+Replace with new one and reinstall on cooling unit.
+Reinstall instrument reinforcement, glove box and undercover.
RHA042G
SHA868E
RHA953F
SERVICE PROCEDURESMANUAL AND AUTO
HA-116
A
A/C HFC134a (R134a) system service
procedure ..................................................HA-112
A/C HFC134a system service equip-
ment precaution ............................................HA-9
A/C air ¯ow .....................................................HA-13
A/C component layout ....................................HA-12
A/C compressor precaution..............................HA-6
A/C compressor special service tool ...........HA-6, 7
A/C control linkage adjustment (auto
A/C).............................................................HA-77
A/C control operation (manual A/C) ...............HA-16
A/C harness layout (manual A/C) ..................HA-17
A/C lubricant (R134a) ...................................HA-114
A/C relay.........................................................HA-97
A/C self-diagnoses (auto A/C)........................HA-63
A/CCUT - Wiring diagram ............................EC-186
A/T control ....................................................EC-174
ABS sensor rotor ............................................FA-15
ACC/SW - Wiring diagram ...........................EC-105
ACL/SW - Wiring diagram ............................EC-164
ADJRES - Wiring diagram .............................EC-91
APS - Wiring diagram ..................................EC-138
AT/C - Wiring diagram..................................EC-174
AUDIO - Wiring diagram ...............................EL-168
Accelerator position sensor ..........................EC-138
Accelerator position switch...........................EC-164
Accelerator switch (F/C) ...............................EC-105
Adjustment resistor.........................................EC-91
Air bag disposal..............................................RS-17
Air bag ..............................................................RS-8
Air bleeding (hydraulic clutch) ..........................CL-6
Air bleeding for brake system ..........................BR-4
Air cleaner ®lter replacement .........................MA-18
Air conditioner cut control ..............................EC-19
Air ¯ow meter - See Mass air ¯ow
sensor .........................................................EC-73
Air mix door control linkage
adjustment ................................................HA-81
Alternator.........................................................EL-56
Antenna - See Power antenna .....................EL-181
Audio and A/C control removal and
installation - See Instrument panel .............BT-11
Audio .............................................................EL-168
Auto lock free running hub .............................FA-13
Automatic ampli®er .........................................HA-61
Axle housing (rear) ...........................................RA-9
B
BACK/L - Wiring diagram................................EL-78
Back door opener - See Back door ..................BT-6
Back door trim.................................................BT-24
Back door window...........................................BT-45
Back door ..........................................................BT-6Back-up lamp switch (M/T) ..............................MT-4
Back-up lamp ..................................................EL-78
Battery .............................................................EL-37
Baulk ring (M/T)..............................................MT-10
Body alignment ...............................................BT-49
Body mounting ................................................BT-48
Brake booster .................................................BR-15
Brake ¯uid change ...........................................BR-3
Brake ¯uid level and line check .......................BR-3
Brake ¯uid level .............................................MA-23
Brake hydraulic line ..........................................BR-5
Brake inspection ............................................MA-24
Brake master cylinder ....................................BR-12
Brake pedal ....................................................BR-10
Bulb speci®cations ........................................EL-314
Bumper, front ................................................... BT-4
Bumper, rear .....................................................BT-6
C
CD/CHG - Wiring diagram ............................EL-176
CHIME - Wiring diagram...............................EL-136
CIGAR - Wiring diagram ...............................EL-156
CKPS - Wiring diagram ................................EC-143
CLOCK - Wiring diagram ..............................EL-157
CMPS - Wiring diagram .................................EC-68
COMPAS - Wiring diagram ...........................EL-117
CONSULT for ECCS ......................................EC-36
CONSULT general information ........................GI-33
COOL/F - Wiring diagram ............................EC-112
CSPS - Wiring diagram ..................................EC-86
Cab body.........................................................BT-47
Camshaft inspection ......................................EM-36
Camshaft position sensor (PUMP).................EC-68
Center case (Transfer) ....................................TF-10
Charge air cooler fan control .......................EC-177
Charge air temperature sensor ....................EC-121
Chassis and body maintenance ....................MA-20
Cigarette lighter.............................................EL-156
Circuit breaker.................................................EL-14
Clock .............................................................EL-157
Clutch booster...................................................CL-9
Clutch cover ....................................................CL-14
Clutch damper ..................................................CL-7
Clutch disc ......................................................CL-13
Clutch ¯uid level.............................................MA-20
Clutch master cylinder ......................................CL-7
Clutch operating cylinder ..................................CL-8
Clutch pedal ......................................................CL-5
Clutch release bearing ....................................CL-11
Clutch release mechanism .............................CL-11
Clutch withdrawal lever ...................................CL-11
Coil spring (front) ............................................FA-25
Coil spring (rear) ............................................RA-14
Collision diagnosis..........................................RS-45
Combination meter removal and instal-
lation - See Instrument panel ......................BT-11
ALPHABETICAL INDEX
IDX-2
Combination meter........................................EL-102
Combination switch .........................................EL-57
Combustion chamber replacement ................EM-32
Compass .......................................................EL-116
Compression pressure ...................................EM-10
Compressor special service tool ......................HA-6
Connecting rod...............................................EM-47
Connecting rod...............................................EM-51
Connector inspection .......................................GI-17
Console box - See Instrument panel ..............BT-11
Control lever (Transfer) .....................................TF-9
Control sleeve position sensor .......................EC-86
Coolant mixture ratio ......................................MA-11
Coolant replacement ......................................MA-14
Cooling circuit (engine) .....................................LC-9
Cooling fan control .......................................EC-112
Cooling fan motor .........................................EC-120
Cooling fan relay ..........................................EC-120
Cooling fan......................................................LC-15
Counter gear (M/T).........................................MT-10
Counter gear (Transfer) ..................................TF-11
Coupling sleeve (M/T) ....................................MT-10
Crankcase emission control system -
See Positive crankcase ventilation.............EC-21
Crankcase ventilation system - See
Positive crankcase ventilation ....................EC-21
Crankshaft position sensor (TDC)................EC-143
Crankshaft ......................................................EM-50
Cylinder block ..........................................EM-45, 48
Cylinder head .................................................EM-28
D
D/LOCK - Wiring diagram .............................EL-205
DEF - Wiring diagram ...................................EL-159
DEICER - Wiring diagram.............................EL-167
DTRL - Wiring diagram ...................................EL-67
Data link connector for Consult......................EC-36
Daytime light system.......................................EL-65
Diagnosis sensor unit .....................................RS-12
Diagnostic trouble code (DTC) for
ECCS OBD system ....................................EC-30
Differential carrier assembly...........................PD-31
Differential carrier disassembly ......................PD-14
Differential gear oil replacement ....................MA-22
Dimensions ......................................................GI-38
Dome light - See Interior lamp .......................EL-93
Door glass .........................................................BT-9
Door lock ...........................................................BT-9
Door mirror ......................................................BT-46
Door trim .........................................................BT-18
Door, front .........................................................BT-9
Door, rear ........................................................BT-10
Drive belt inspection ......................................MA-12
Drive chain (Transfer) .....................................TF-11
Drive pinion diff. inspection ............................PD-19
Drive pinion height .........................................PD-27
Drive shaft (front) ............................................FA-23
Dual pressure switch ......................................HA-11Dual pressure switch ......................................HA-97
E
ECCS basic inspection...................................EC-46
ECCS circuit diagram .....................................EC-11
ECCS component parts location ......................EC-8
ECCS on board diagnostic system ................EC-30
ECCS symptom matrix chart..........................EC-48
ECCS system diagram and chart ..................EC-12
ECCS-D control module .........................EC-54, 110
ECM input/output signal .................................EC-54
ECTS - Wiring diagram ..................................EC-78
EGR control (EGRC) - solenoid valve .........EC-155
EGR control valve ........................................EC-161
EGRC/V - Wiring diagram ............................EC-155
Electric governor ....................................EC-95, 148
Electric sunroof .............................................EL-186
Electrical diagnoses.........................................GI-20
Electrical unit.................................................EL-321
Electrical units location .................................EL-269
Electronic fuel injection pump ........................EC-27
Engine compartment .......................................BT-49
Engine coolant temperature sensor
(ECTS) ........................................................EC-78
Engine oil ®lter replacement ..........................MA-14
Engine oil precautions .......................................GI-4
Engine oil replacement ..................................MA-13
Engine outer component parts ........................EM-8
Engine removal ..............................................EM-43
Engine room - See Engine
compartment ...............................................BT-49
Engine serial number ......................................GI-37
Exhaust system inspection ............................MA-20
Exhaust system ................................................FE-3
Exterior ............................................................BT-26
F
FCUT - Wiring diagram ................................EC-129
FTS - Wiring diagram ...................................EC-134
Fan control amp. ............................................HA-88
Final drive disassembly ..................................PD-14
Final drive removal and installation................PD-11
Finisher, interior - See Trim ............................BT-14
Floor trim .........................................................BT-14
Flow charts ......................................................GI-30
Fluids................................................................MA-9
Flywheel (clutch).......................................CL-13, 14
Flywheel runout..............................................EM-52
Fog lamp, rear ................................................EL-80
Fork rod (M/T) ................................................MT-12
Front axle ........................................................FA-10
Front bumper ....................................................BT-4
Front case (Transfer) ......................................TF-10
Front disc brake .............................................BR-20
Front door .........................................................BT-9
ALPHABETICAL INDEX
IDX-3
Front drive shaft (Transfer) .............................TF-11
Front ®nal drive disassembly (4WD) ..............PD-14
Front ®nal drive removal and installa-
tion (4WD)...................................................PD-11
Front passenger air bag.............................RS-8, 14
Front seat belt ..................................................RS-2
Front seat ........................................................BT-32
Front suspension ............................................FA-24
Front washer .................................................EL-141
Front wiper ....................................................EL-141
Fuel cut control (at no load & high
engine speed) .............................................EC-20
Fuel cut solenoid valve ................................EC-129
Fuel ®ller lid.......................................................BT-6
Fuel ®lter replacement ...................................MA-16
Fuel gauge ....................................................EL-102
Fuel injection system......................................EC-15
Fuel line inspection ........................................MA-17
Fuel precautions ................................................GI-5
Fuel temperature sensor ..............................EC-134
Fuse block.....................................................EL-319
Fuse ................................................................EL-14
Fusible link ......................................................EL-14
G
GLOW - Wiring diagram...............................EC-150
GOVNR - Wiring diagram ..............................EC-95
Garage jack and safety stand .........................GI-39
Gauges..........................................................EL-102
Gear components (M/T) .................................MT-10
Glass .................................................................BT-9
Glow plug .............................................EC-150, 154
Glow relay ............................................EC-150, 154
Grease .............................................................MA-9
Ground distribution..........................................EL-15
H
H/AIM - Wiring diagram ..................................EL-71
H/LAMP - Wiring diagram ...............................EL-61
HEAT UP - Wiring diagram ..........................EC-182
HFC134a (R134a) system service
procedure ..................................................HA-112
HLC - Wiring diagram ...................................EL-153
HORN - Wiring diagram................................EL-155
Harness connector inspection .........................GI-17
Harness connector ............................................EL-2
Harness layout ..............................................EL-275
Headlamp aiming control ................................EL-70
Headlamp leveler - See Headlamp
aiming control ..............................................EL-70
Headlamp wiper ............................................EL-153
Headlamp ........................................................EL-61
Headlining - See Roof trim .............................BT-20
Heat up switch..............................................EC-182
Heated seat.....................................................BT-34Hood..................................................................BT-4
Horn ..............................................................EL-155
How to erase DTC for ECCS OBD
system ........................................................EC-30
I
IATS - Wiring diagram ..................................EC-121
IC/FAN - Wiring diagram ..............................EC-177
ILL - Wiring diagram .......................................EL-87
INT/L - Wiring diagram..................................EL-101
Identi®cation plate............................................GI-37
Idle speed inspection .....................................MA-19
Idle speed .......................................................EC-46
Illumination ......................................................EL-86
In vehicle sensor ..........................................HA-105
Injection nozzle inspection .............................MA-18
Injection nozzle...............................................EC-22
Injection timing control valve ........................EC-100
Instrument panel .............................................BT-11
Intake door control linkage adjustment ..........HA-84
Intake door motor ...........................................HA-25
Intake sensor ................................................HA-111
Interior lamp ....................................................EL-93
Interior .............................................................BT-14
J
Jacking points ..................................................GI-39
Joint connector (J/C).....................................EL-322
Journal bearing assembly (propeller
shaft) .............................................................PD-8
Journal bearing disassembly (propeller
shaft) .............................................................PD-7
Junction box (J/B) .........................................EL-319
L
LSV (Load sensing valve) ................................BR-6
Lifting points ....................................................GI-40
Limited slip diff. adjustment............................PD-23
Limited slip diff. assembly ..............................PD-24
Limited slip diff. disassembly .........................PD-21
Limited slip diff. inspection .............................PD-21
Location of electrical units ............................EL-269
Lock, door .........................................................BT-9
Lubricant (R134a) A/C ..................................HA-114
Lubricants.........................................................MA-9
Lubrication circuit (engine) ...............................LC-3
Lubrication-locks, hinges and hood
latches ........................................................MA-27
Luggage compartment trim .............................BT-14
Luggage room lamp ........................................EL-93
ALPHABETICAL INDEX
IDX-4