2001 NISSAN PATROL Electrical system

L
License lamp ......................................... EL-2041
Location of electrical units ..................... EL-2103
Lubricants ............................................. MA-2002
M
MAFS - Wiring diagram ........................ EC-2006
MAIN - Wiring diagram ......................... EC-2004
METER - Wiring diagram ...................... EL-2064
MIRROR - Wiring diagram .................... EL-2098
Maintenance (engine) ........................... MA-2003
Mass air flow sensor (MAFS) ............... EC-2006
Meter ...................................................... EL-2062
Model variation ....................................... GI-2002
N
NATS (Nissan Anti-theft System) .......... EL-2100
NATS - Wiring diagram ......................... EL-2100
O
Oil change (capacity) ............................ MA-2002
Operating cylinder (clutch) .................... CL-2003
P
PNP/SW - Wiring diagram .................... EC-2034
POWER - Wiring diagram ..................... EL-2005
Park/Neutral position switch ................. EC-2034
Parking lamp .......................................... EL-2041
Power door mirror .................................. EL-2098
Power supply routing ................... EL-2004, 2005
Pressure plate - See Clutch cover ........ CL-2005
R
R/HEAT - Wiring diagram ..................... HA-2003
Radio - See Audio ................................. EL-2088
Rear washer .......................................... EL-2078
Rear wiper ............................................. EL-2078
S
SHIFT - Wiring diagram ........................ AT-2013
SRS - See Supplemental Restraint
System .............................................. RS-2003
STAB - Wiring diagram ......................... RA-2002
SWL/V - Wiring diagram ....................... EC-2036
Seal - See Exterior ................................ BT-2006
Seat belt pre-tensioner disposal ........... RS-2009Seat belt pre-tensioner ......................... RS-2003
Shift schedule ........................................ AT-2014
Side air bag ........................................... RS-2003
Speedometer ......................................... EL-2062
Spiral cable ........................................... RS-2006
Stabilizer release device - Wiring
diagram ............................................. RA-2002
Stabilizer release device ....................... RA-2002
Start signal ............................................ EC-2033
Starter .................................................... EL-2032
Starting system ...................................... EL-2029
Supplemental Restraint System ........... RS-2003
Supplemental restraint system - Wiring
diagram ................................... RS-2020, 2021
Swirl control valve control solenoid
valve .................................................. EC-2036
T
TAIL/L - Wiring diagram ........................ EL-2041
TCM circuit diagram .............................. AT-2002
TURN - Wiring diagram ......................... EL-2050
Tachometer ............................................ EL-2062
Tail lamp ................................................ EL-2041
Thermostat ............................................ LC-2003
Turn signal lamp .................................... EL-2050
V
VSS - Wiring diagram ........................... EC-2008
Vehicle identification number ....... GI-2002, 2003
Vehicle speed sensor (VSS) ................. EC-2008
W
WARN - Wiring diagram ........................ EL-2069
WIP/R - Wiring diagram ........................ EL-2079
Warning lamps ....................................... EL-2067
Washer, rear .......................................... EL-2078
Water temperature gauge ..................... EL-2062
Wiper deicer .......................................... EL-2086
Wiper, rear ............................................. EL-2078
ALPHABETICAL INDEX
IDX-2003

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. SRS wiring harnesses can be identified by yellow harness connector.
PRECAUTION
RS-2002

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 ª
Sº 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
KV99109800
Deployment tool adapters for
seat belt pre-tensioner
NT846
*: Special tool or commercial equivalent
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-2003

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 connector.
+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 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.
The Diagnosis mode allows the technician to locate and inspect the malfunctioning part.
The mode applications for the ªAIR BAGº warning lamp and CONSULT-II are as follows:
User mode Diagnosis mode Display type
ªAIR BAGº warning lamp X X 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 number.
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.
Model with dual air bags, side air bag and seat belt pre-tensioner 5A35
Model with dual air bags and side air bag 5A34
Model with dual air bags and seat belt pre-tensioner 5A33
Model with dual air bag5A32
Model with single air bag and pre-tensioner 5A31
Model with single air bag5A30
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
RS-2014