2001 NISSAN PATROL Electronic Repair Manual

Wiring Diagram
TRA001
STABILIZER RELEASE DEVICE
RA-2002

TRA006M
STABILIZER RELEASE DEVICE
Wiring Diagram (Cont'd)
RA-2003

STABILIZER RELEASE DEVICE
RA-2004

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

Commercial Service Tool
Tool name Description
Tamper resistant torx socket
NT757
Size: T30
SRS Component Parts Location
SRS972
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-2004

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