2001 NISSAN PATROL sensor

Code Section Wiring Diagram Name
S/SIG EC Start Signal
S/TANK FE Sub Fuel Tank Control System
SHIFT AT A/T Shift Lock System
SRS RS Supplemental Restraint System
STAB RARear Stabilizer Release Device Con-
trol System
START EL Starting System
SWL/V ECSwirl Control Valve Control Solenoid
Valve
TAIL/L EL Parking, License and Tail Lamps
TP/SW EC Throttle Position Switch
TPS EC Throttle Position Sensor
TRQ/SG EC Engine Torque Control Signal
TURN ELTurn Signal and Hazard Warning
Lamps
VIAS/V ECVariable Air Induction Control Sys-
tem
VSS EC Vehicle Speed Sensor
WARN EL Warning Lamps
WIP/R EL Rear Wiper and Washer
WIRING DIAGRAM CODES (CELL CODES)
Wiring Diagram Codes (Cell Codes) (Cont'd)
EL-2133

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 system composition which is available to NISSAN MODEL Y61 is as follows (The
composition 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).
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 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. 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 tape either just
before the harness connectors or for the complete harness are related to the SRS.
PRECAUTIONS AND PREPARATION
HA-2002

A
A/T - Wiring diagram ............................. AT-2003
A/T control ............................................. EC-2021
A/T shift lock system ............................. AT-2013
ABS - Wiring diagram ........................... BR-2003
APS - Wiring diagram ........................... EC-2019
AT/C - Wiring diagram .......................... EC-2021
AUDIO - Wiring diagram ....................... EL-2088
Accelerator position sensor .................. EC-2019
Air bag disposal .................................... RS-2009
Air bag ................................................... RS-2003
Air flow meter - See Mass air flow
sensor ................................................ EC-2006
Anti-lock brake system - Wiring
diagram ............................................. BR-2002
Audio ...................................................... EL-2088
B
BACK/L - Wiring diagram ...................... EL-2047
BOOST - Wiring diagram ...................... EC-2029
Back-up lamp ......................................... EL-2047
Bumper, front ....................................... BT-2003
C
CD/CHG - Wiring diagram ..................... EL-2092
CIGAR - Wiring diagram ....................... EL-2085
COOL/F - Wiring diagram ..................... EC-2010
Cigarette lighter ..................................... EL-2085
Clutch cover .......................................... CL-2005
Clutch damper ....................................... CL-2004
Clutch master cylinder ........................... CL-2004
Clutch operating cylinder ....................... CL-2003
Combination meter ................................ EL-2062
Cool box - Wiring diagram .................... HA-2011
Coolant replacement ............................ MA-2003
Cooling circuit (engine) ......................... LC-2002
Cooling fan control ................................ EC-2010
D
DEICER - Wiring diagram ..................... EL-2086
DTRL - Wiring diagram ......................... EL-2037
Daytime light system ............................. EL-2037
Diagnosis sensor unit ........................... RS-2005
E
ECCS-D control module ............. EC-2027, 2028
ECTS - Wiring diagram ......................... EC-2007
EGR - Wiring diagram .......................... EC-2030
EGR volume control valve .................... EC-2030
Electrical unit ......................................... EL-2136Electrical units location .......................... EL-2103
Electronic fuel injection pump .... EC-2018, 2022,
2023, 2024, 2025, 2026, 2031
Engine control circuit diagram .............. EC-2003
Engine coolant temperature sensor
(ECTS) .............................................. EC-2007
Exterior .................................................. BT-2006
F
F/FOG - Wiring diagram ........................ EL-2048
Fluids .................................................... MA-2002
Flywheel (clutch) ................................... CL-2005
Fog lamp, front ...................................... EL-2048
Front bumper ......................................... BT-2003
Front fog lamp ....................................... EL-2048
Front passenger air bag ....................... RS-2003
Fuel gauge ............................................. EL-2062
Fuse block ............................................. EL-2134
Fuse ....................................................... EL-2135
Fusible link ............................................. EL-2135
G
Gauges .................................................. EL-2062
Grease .................................................. MA-2002
Ground distribution ................................ EL-2014
H
H/LAMP - Wiring diagram ..................... EL-2034
HEAT UP - Wiring diagram .................. EC-2035
HLC - Wiring diagram ............................ EL-2083
HORN - Wiring diagram ........................ EL-2084
Harness layout ............................ EL-2106, 2108
Hazard warning lamp ............................ EL-2050
Headlamp wiper ..................................... EL-2083
Headlamp .................................... EL-2034, 2037
Heat up switch ...................................... EC-2035
Hood ...................................................... BT-2003
Horn ....................................................... EL-2084
I
ILL - Wiring diagram .............................. EL-2055
Illumination ............................................. EL-2054
J
Junction box (J/B) .................................. EL-2134
ALPHABETICAL INDEX
IDX-2002

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

RESTRAINT SYSTEM
SECTION
RS
MODIFICATION NOTICE:
+Diagnosis sensor unit has been changed.
+Deployment procedure of seat belt pre-tensioner has been changed.
CONTENTS
PRECAUTION...................................................... 2002
Supplemental Restraint System (SRS) ªAIR
BAGº and ªSEAT BELT PRE-TENSIONERº ... 2002
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)2003
Precautions for SRS ªAIR BAGº and ªSEAT
BELT PRE-TENSIONERº Service ................... 2003
Special Service Tools ...................................... 2003
Commercial Service Tool................................. 2004
SRS Component Parts Location...................... 2004
Removal and Installation Ð Diagnosis Sensor
Unit, Seat Belt Pre-tensioner with Load Limiter2005
Removal Ð Driver Air Bag Module and Spiral
Cable ................................................................ 2006Installation Ð Driver Air Bag Module and
Spiral Cable ..................................................... 2007
Disposal of Air Bag Module and Seat Belt Pre-
tensioner .......................................................... 2009
TROUBLE DIAGNOSES Ð Supplemental
Restraint System (SRS)..................................... 2014
Trouble Diagnoses Introduction ....................... 2014
How to Perform Trouble Diagnoses for Quick
and Accurate Repair ........................................ 2017
Schematic ........................................................ 2019
Wiring Diagram Ð SRS Ð/LHD Models ......... 2020
Wiring Diagram Ð SRS Ð/RHD Models ........ 2021

RS

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

Removal and Installation Ð Diagnosis
Sensor Unit, Seat Belt Pre-tensioner with
Load Limiter
CAUTION:
+Before servicing SRS, turn the ignition switch off, disconnect both battery cables and wait at least
3 minutes.
+Do not use old bolts and nuts coated with bonding agent after removal; replace with new ones.
+Check diagnosis sensor unit, seat belt pre-tensioner with load limiter and satellite sensor for
proper installation.
+Check diagnosis sensor unit and satellite sensor to ensure they are free of deformities, dents,
cracks or rust. If they show any visible signs of damage, replace them with new ones.
+Check diagnosis sensor unit brackets to ensure they are free of deformities and rust.
+After replacement of diagnosis sensor unit, seat belt pre-tensioner and satellite sensor, check
SRS function and perform self-diagnosis for SRS. Refer to ªSelf-diagnosisº for details.
+Do not attempt to disassemble diagnosis sensor unit, seat belt pre-tensioner with load limiter and
satellite sensor.
+Replace diagnosis sensor unit, seat belt pre-tensioner and satellite sensor if it has been dropped
or sustained an impact.
+Do not expose seat belt pre-tensioner to temperatures exceeding 80ÉC (176ÉF).
REMOVAL OF DIAGNOSIS SENSOR UNIT
1. Disconnect driver, passenger and side air bag module con-
nectors. Also, disconnect seat belt pre-tensioner connector.
2. Remove console finisher, console box assembly and instru-
ment panel stay cover. Refer to ªINSTRUMENT PANELº in
BT section.
3. Disconnect diagnosis sensor unit connector.
4. Remove bolt and diagnosis sensor unit fixing bolts.
Then remove the diagnosis sensor unit.
NOTE:
+To install, reverse the removal procedure sequence.
+After replacement, perform self-diagnosis for SRS. Refer
to ªSelf-diagnosisº for details.
CAUTION:
Do not use old special bolts coated with bonding agent;
replace with new coated special bolts.
SRS973
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-2005