2000 NISSAN PATROL Electrical system

A
A/T - Wiring diagram ............................. AT-1009
A/T control ............................................. EC-1148
A/T fluid temperature sensor ................. AT-1081
A/T mode switch .................................... AT-1095
A/T self-diagnoses ................................. AT-1028
A/T shift lock system - Wiring
diagram .............................................. AT-1117
A/T shift lock system ............................. AT-1116
A/T trouble diagnoses ........................... AT-1036
APS - Wiring diagram ........................... EC-1125
ASCD (automatic speed control
device) ............................................... EL-1110
ASCD - Wiring diagram ......................... EL-1111
AT/C - Wiring diagram .......................... EC-1150
Accelerator control system .................... FE-1007
Accelerator position sensor .................. EC-1125
Air bag disposal .................................... RS-1015
Air bag precautions ................................ GI-1002
Air bag ................................................... RS-1003
Air cleaner filter replacement ............... MA-1019
Air conditioner cut control ..................... EC-1021
Air flow meter - See Mass air flow
sensor ................................................ EC-1086
Alternator ............................................... EL-1041
Angular tightening application .............. EM-1003
Anti-lock brake system - Wiring
diagram ............................................. BR-1002
Audio ...................................................... EL-1108
Automatic speed control system - See
ASCD ................................................. EL-1110
Automatic transmission fluid
replacement ...................................... MA-1021
B
BACK/L - Wiring diagram ...................... EL-1051
BOOST - Wiring diagram ...................... EC-1204
Back-up lamp ......................................... EL-1051
Basic inspection .................................... EC-1049
Battery ................................................... EL-1035
Boring/horning cylinder block ............... EM-1075
C
CHARGE - Wiring diagram ................... EL-1040
CKPS - Wiring diagram ........................ EC-1140
CONSULT for engine ............................ EC-1038
CONSULT general information .............. GI-1003
COOL/F - Wiring diagram ..................... EC-1105
CORNER - Wiring diagram ................... EL-1054
Camshaft inspection ............................. EM-1032
Charging system .................................... EL-1040
Chassis and body maintenance ........... MA-1020
Clutch operating cylinder ....................... CL-1003
Collision diagnosis ................................ RS-1052
Combination meter ................................ EL-1073Combination switch ............................... EL-1042
Compression pressure ......................... EM-1010
Compressor mounting ........................... HA-1023
Connecting rod bearing clearance ....... EM-1078
Connecting rod bushing clearance ....... EM-1074
Connecting rod ..................................... EM-1074
Control valve (A/T) ................................ AT-1148
Converter housing installation ............... AT-1128
Coolant mixture ratio ............................ MA-1010
Coolant replacement ............................ MA-1014
Cooling fan control ................................ EC-1105
Cornering lamp ...................................... EL-1054
Crankcase emission control system -
See Positive crankcase ventilation ... EC-1022
Crankcase ventilation system - See
Positive crankcase ventilation ........... EC-1022
Crankshaft position sensor (TDC) ........ EC-1140
Crankshaft ............................................ EM-1077
Cruise control - See ASCD ................... EL-1110
Cylinder block boring ............................ EM-1020
Cylinder block ....................................... EM-1067
Cylinder head bolt tightening ................ EM-1034
Cylinder head ....................................... EM-1053
D
DEF - Wiring diagram ............................ EL-1102
DTRL - Wiring diagram ......................... EL-1044
Data link connector for Consult ............ EC-1038
Daytime light system ............................. EL-1044
Diagnosis sensor unit ........................... RS-1008
Diagnostic trouble code (DTC) for
OBD system ...................................... EC-1032
Dome light - See Interior lamp .............. EL-1067
Door mirror ............................................ BT-1007
Door trim ................................................ BT-1004
Drive belt inspection ............................. MA-1011
Drive plate runout ................................. EM-1095
Dropping resistor (A/T) .......................... AT-1086
E
ECCS-D control module .. EC-1068, 1117, 1189,
1191, 1196, 1200
ECM input/output signal ........................ EC-1068
ECTS - Wiring diagram ......................... EC-1092
EGR - Wiring diagram .......................... EC-1209
EGR volume control valve .................... EC-1207
Electrical unit ......................................... EL-1231
Electrical units location .......................... EL-1185
Electronic fuel injection pump .... EC-1119, 1153,
1159, 1165, 1171, 1177, 1180, 1215
Engine control circuit diagram .............. EC-1015
Engine control component parts
location .............................................. EC-1011
Engine control system diagram and
chart .................................................. EC-1016
ALPHABETICAL INDEX
IDX-1002

Engine coolant temperature sensor
(ECTS) .............................................. EC-1092
Engine oil filter replacement ................. MA-1013
Engine oil replacement ......................... MA-1012
Engine removal ..................................... EM-1064
Engine serial number ............................. GI-1008
F
F/FOG - Wiring diagram ........................ EL-1052
Final drive disassembly .............. PD-1004, 1005
Fluid temperature sensor (A/T) ............. AT-1081
Fluids .................................................... MA-1008
Flywheel runout .................................... EM-1095
Fog lamp, front ...................................... EL-1052
Fog lamp, rear ....................................... EL-1053
Forward clutch ....................................... AT-1167
Front axle .............................................. FA-1002
Front final drive disassembly (4WD) .... PD-1004
Front fog lamp ....................................... EL-1052
Front passenger air bag ....................... RS-1003
Front seat .............................................. BT-1006
Front washer .......................................... EL-1098
Front wiper ............................................. EL-1098
Fuel cut control (at no load & high
engine speed) ................................... EC-1021
Fuel filter replacement .......................... MA-1017
Fuel gauge ............................................. EL-1073
Fuel injection system ............................ EC-1019
Fuel line inspection ............................... MA-1018
Fuel precautions ..................................... GI-1002
Fuse block ............................................. EL-1229
Fuse ....................................................... EL-1230
Fusible link ............................................. EL-1230
G
GLOW - Wiring diagram ....................... EC-1221
Gauges .................................................. EL-1073
Glow plug .............................................. EC-1221
Glow relay ............................................. EC-1221
Grease ........................................ MA-1008, 1016
Ground distribution ................................ EL-1013
H
HEAT UP - Wiring diagram .................. EC-1242
HEATER - Wiring diagram .................... HA-1005
HLC - Wiring diagram ............................ EL-1099
HORN - Wiring diagram ........................ EL-1100
Harness layout ....................................... EL-1191
Hazard warning lamp ............................ EL-1058
Headlamp washer .................................. EL-1099
Headlamp wiper ..................................... EL-1099
Headlamp .............................................. EL-1044
Heat up switch ...................................... EC-1241
High clutch ............................................. AT-1165Horn ....................................................... EL-1100
How to erase DTC for OBD system ..... EC-1032
I
ILL - Wiring diagram .............................. EL-1061
Identification plate .................................. GI-1008
Idle speed ............................................. EC-1049
Illumination ............................................. EL-1060
Injection nozzle ..................................... EC-1023
Intake manifold ..................................... EM-1012
Interior lamp ........................................... EL-1067
Interior ................................................... BT-1004
J
Junction box (J/B) .................................. EL-1229
L
License lamp ......................................... EL-1046
Lifting points ........................................... GI-1009
Line pressure solenoid valve ................ AT-1086
Line pressure test (A/T) ........................ AT-1044
Liquid gasket application ...................... EM-1003
Location of electrical units ..................... EL-1185
Low and reverse brake ......................... AT-1171
Lubricants ............................................. MA-1008
Luggage room lamp .............................. EL-1067
M
MAFS - Wiring diagram ........................ EC-1086
MAIN - Wiring diagram ......................... EC-1077
MAJOR OVERHALL .............................. AT-1129
METER - Wiring diagram ...................... EL-1073
Maintenance (engine) ........................... MA-1011
Malfunction indicator lamp (MIL) .......... EC-1033
Manifold tightening torque (intake &
exhaust) ............................................ MA-1011
Mass air flow sensor (MAFS) ............... EC-1086
Meter ...................................................... EL-1073
Mirror, door ............................................ BT-1007
Mirror, outside ....................................... BT-1007
Model variation ....................................... GI-1005
N
NATS (Nissan Anti-theft System) .......... EL-1163
NATS - Wiring diagram ......................... EL-1166
NVH troubleshooting (EM) ................... EM-1008
ALPHABETICAL INDEX
IDX-1003

Supplemental Restraint System (SRS) ªAIR
BAGº and ªSEAT BELT PRE-TENSIONERº
The Supplemental Restraint System such as ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº used along
with a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. The SRS composition which is available to NISSAN MODEL Y61 is as follows (The com-
position varies according to the destination and optional equipment.):
+For a frontal collision
The Supplemental Restraint System consists of 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-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.
+For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of
front seat), satellite sensor, diagnosis sensor unit (one of components of air bags for a frontal collision),
wiring harness, warning lamp (one of components of air bags for a frontal collision).
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 inflation, all maintenance should be per-
formed 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.
+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 tape either just
before the harness connectors or for the complete harness are related to the SRS.
PRECAUTION
RS-1002

Precautions for SRS ªAIR BAGº and ªSEAT
BELT PRE-TENSIONERº Service
+Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
+Before servicing the SRS, turn ignition switch ªOFFº, disconnect both battery cables and wait at least 3
minutes.
For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-
tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
+Diagnosis sensor unit must always be installed with their arrow marks ªSº pointing towards the front of
the vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities or rust before
installation and replace as required.
+The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt
to turn steering wheel or column after removal of steering gear.
+Handle air bag module carefully. Always place driver and passenger air bag modules with the pad side
facing upward and front side air bag modules (built-in type) with the stud bolt side facing down.
+Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
+After air bag inflates, the front instrument panel assembly should be replaced if damaged.
Special Service Tools
Tool number
Tool nameDescription
KV99106400
Deployment tool
NT357
Disposing of air bag module
KV99105300
Air bag module bracket
NT354
Anchoring air bag module
HT61961000 and
HT62152000 combined
*Special torx bit
NT361
Use for special bolts
[TAMPER RESISTANT TORX (Size T50)]
a: 3.5 (0.138) dia.
b: 8.5 - 8.6 (0.335 - 0.339) dia.
c: approx. 10 (0.39) sq.
Unit: mm (in)
KV99108300
Deployment tool adapters for
built-in type side air bag and
passenger air bag modules
NT780
KV99108200 (KV999R0020)
Deployment tool adapters for
seat belt pre-tensioner
NT721
*: Special tool or commercial equivalent
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-1003

Maintenance Items
CAUTION:
Do not use electrical test equipment to check SRS circuit.
1. Check operation of ªAIR BAGº and ªSEAT BELTº warning
lamps (ªSEAT BELTº warning lamp can be used for check-
ing seat belt pre-tensioner on models except for Europe.).
After turning ignition key to ªONº position, both warning
lamps illuminate. The ªAIR BAGº warning lamp will go off
after about 7 seconds if no malfunction is detected. The
ªSEAT BELTº warning lamp will also go off after about 7
seconds after seat belt has been fastened and no malfunc-
tion is detected. (When seat belt has not been fastened, the
warning lamp continues to illuminate until seat belt is fas-
tened.)
If any of the following warning lamp conditions occur, imme-
diately check the air bag or seat belt pre-tensioner system.
Refer to RS-1032 for details.
+The ªAIR BAGº or ªSEAT BELTº warning lamp does not illu-
minate when the ignition switch is turned ªONº.
+The ªAIR BAGº or ªSEAT BELTº (with seat belt fastened)
warning lamp does not go off about 7 seconds after the igni-
tion switch is turned ªONº.
+The ªAIR BAGº or ªSEAT BELTº (with seat belt fastened)
warning lamp blinks after about 7 seconds after the ignition
switch is turned ªONº.
2. Visually check SRS components
(1) Diagnosis sensor unit
+Check diagnosis sensor unit and bracket for dents, cracks or
deformities.
+Check connectors for damage, and terminals for deformities.
(2) Air bag module and steering wheel
+Remove air bag module from steering wheel, instrument
panel or seat back. Check harness cover and connectors for
damage, terminals for deformities, and harness for binding.
+Install driver air bag module to steering wheel to check fit or
alignment with the wheel.
+Check steering wheel for excessive free play.
+Install passenger air bag module to instrument panel to
check fit or alignment with the instrument panel.
+Install side air bag module to seat back to check fit and
alignment with the seat.
(3) Spiral cable
+Check spiral cable for dents, cracks, or deformities.
+Check connectors and protective tape for damage.
+Check steering wheel for noise, binding or heavy operation.
(4) Main harness and body harness
+Check connectors for poor connections, damage, and termi-
nals for deformities.
+Check harnesses for binding, chafing or cut.
(5) Seat belt pre-tensioner
+Check harness cover and connectors for damage, terminals
for deformities, and harness for binding.
+Check belts for damage and anchors for loose mounting.
+Check retractor for smooth operation.
SRS222-B
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-1006

Trouble Diagnoses Introduction
CAUTION:
+Do not use electrical test equipment to check SRS harness connectors unless instructed to in
this Service Manual. SRS wiring harnesses can be identified by yellow harness protector or yel-
low insulation tape before the harness connectors.
+Do not attempt to repair, splice or modify the SRS wiring harness. If the harness is damaged,
replace it with a new one.
+Keep ground portion clean.
DIAGNOSIS FUNCTION
The SRS self-diagnosis results can be read by using ªAIR BAGº warning lamp, ªSEAT BELTº warning lamp
(Models except for Europe) and/or CONSULT-II. The reading of these results is accomplished using one of
two modes Ð ªUser modeº and ªDiagnosis modeº.
The User mode is exclusively prepared for the customer (driver). This mode warns the driver of a system
malfunction through the operation of the ªAIR BAGº warning lamp and/or ªSEAT BELTº warning lamp (Mod-
els except for Europe).
The Diagnosis mode allows the technician to locate and inspect the malfunctioning part.
The mode applications for the ªAIR BAGº warning lamp, ªSEAT BELTº warning lamp (Models except for
Europe) and CONSULT-II are as follows:
User mode Diagnosis mode Display type
ªAIR BAGº warning lamp X X ON-OFF operation
ªSEAT BELTº warning lamp
(Models except for Europe)X Ð ON-OFF operation
CONSULT-II Ð X Monitoring
DIAGNOSIS MODE FOR CONSULT-II
+ªSELF-DIAG [CURRENT]º
A current Self-diagnosis result (also indicated by the warning lamp flashes in the Diagnosis mode) is
displayed on the CONSULT-II screen in real time. This refers to a malfunctioning part requiring repairs.
+ªSELF-DIAG [PAST]º
Diagnosis results previously stored in the memory are displayed on the CONSULT-II screen. The stored
results are not erased until memory erasing is executed.
+ªTROUBLE DIAG RECORDº
With TROUBLE DIAG RECORD, diagnosis results previously erased by a reset operation can be dis-
played on the CONSULT-II screen.
+ªECU DISCRIMINATED NO.º
The diagnosis sensor unit for each vehicle model is assigned with its own, individual classification num-
ber. This number will be displayed on the CONSULT-II screen, as shown at left. When replacing the
diagnosis sensor unit, refer to the part number for the compatibility. After installation, replacement with
a correct unit can be checked by confirming this classification number on the CONSULT-II screen. The
diagnosis sensor unit classification number varies depending on SRS configuration.
For NISSAN MODEL Y61, the diagnosis sensor unit classification numbers are as follows.
MODEL ECU DISCRIMINATED NO.
WagonModel with dual air bags and side air bag 5A0F
Model with dual air bags 5A11
Model with single air bag 5A13
HardtopModel with side air bag 5A15
Model with dual air bags 5A17
Model with single air bag 5A19
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
RS-1019