2006 NISSAN PATROL sensor

DIAGNOSTIC PROCEDURE 2
(VEHICLE SPEED SENSOR CIRCUIT CHECK)
CHECK VEHICLE SPEED SENSOR CIR-
CUIT.
1. Jack up drive wheels.
2. Connect voltmeter between control unit
connector terminal
V9and ground.
3. Slowly turn wheels.
4. Check de¯ection of voltmeter vary from
0 to 5 volts.
NG
cOK
Vehicle speed sensor is
OK.
Does speedometer operate normally?
Ye s
cNo
Check speedometer and
vehicle speed sensor cir-
cuit.
Check the following.
+Harness connector
M44
+Harness for open or short between con-
trol unit and combination meter
If NG, repair harness or connectors.
SRA840A
.
.
STABILIZER RELEASE DEVICE
Trouble Diagnoses (Cont'd)
RA-21

INSPECTION OF STABILIZER RELEASE DEVICE
CONTROL UNIT
Terminal No.
Parts of check Speci®cations
+þ
1
Body groundStabilizer off indicatorKey switch ON, Stabilizer switch
ON: 0 volts
OFF: Approx. 0.6 volts
2
Stabilizer switchKey switch ON Stabilizer switch
ON: Battery voltage (Approx. 12 volts)
OFF: 0 volts
3Key switch ON Stabilizer switch
ON: 0 volts
OFF: Battery voltage (Approx. 12 volts)
4Key switch ON: Battery voltage (Approx. 12 volts)
OFF: volts
5 Power supply Always battery voltage (Approx. 12 volts)
6
Stabilizer actuatorKey switch ON Stabilizer switch
ON: 0 volts
OFF: After turning stabilizer switch
``OFF'', battery voltage (Approx. 12
volts) will exist for about 15
seconds, then drop to 0 volts.
7Key switch ON Stabilizer switch
ON: After turning stabilizer switch ``ON'',
battery voltage (Approx. 12 volts)
will exist for about 15 seconds, then
drop to 0 volts.
OFF: 0 volts
8Key switch ON: Approx. 4 volts
OFF: 0 volts
9 Vehicle speed sensorDuring extremely low
speedsVaries from 0 volts to 5 volts
10 Ground Ð
SRA853A
STABILIZER RELEASE DEVICE
Trouble Diagnoses (Cont'd)
RA-24

RESTRAINT SYSTEM
SECTION
RS
CONTENTS
PRECAUTION..................................................................1
Supplemental Restraint System (SRS) ``AIR
BAG'' and ``SEAT BELT PRE-TENSIONER''...............1
SEAT BELTS...................................................................2
Front Seat Belt.............................................................3
Rear Seat Belt .............................................................5
3rd Seat Belt ................................................................7
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)............8
Precautions for SRS ``AIR BAG'' and ``Seat Belt
Pre-tensioner'' Service.................................................8
Special Service Tools ..................................................8
Description .................................................................10
SRS Component Parts Location ...............................10
Maintenance Items .................................................... 11
Removal and Installation Ð Diagnosis Sensor
Unit and Seat Belt Pre-tensioner...............................12
Removal and Installation Ð Air Bag Module and
Spiral Cable ...............................................................13
Removal Ð Air Bag Module and Spiral Cable ..........13
Removal Ð Front Passenger Air Bag Module ..........14
Installation Ð Air Bag Module and Spiral Cable .......16Installation Ð Front Passenger Air Bag Module .......16
Disposal of Air Bag Module and Seat Belt Pre-
tensioner ....................................................................17
TROUBLE DIAGNOSES Ð Supplemental
Restraint System (SRS)...............................................22
Trouble Diagnoses Introduction.................................22
How to Perform Trouble Diagnoses for Quick
and Accurate Repair ..................................................24
Schematic ..................................................................26
Wiring Diagram Ð SRS Ð ........................................27
SRS Operation Check ...............................................30
Trouble Diagnoses with CONSULT ...........................32
Trouble Diagnoses without CONSULT ......................39
Trouble Diagnoses: ``AIR BAG'' Warning Lamp
Does Not Turn Off .....................................................43
Trouble Diagnoses: ``AIR BAG'' Warning Lamp
Does Not Turn On .....................................................43
Trouble Diagnoses: SRS Does Not Enter
Diagnosis Mode Using Door Switch ..........................44
COLLISION DIAGNOSIS...............................................45
When you read wiring diagrams:
+Read GI section, ``HOW TO READ WIRING DIAGRAMS''.
+See EL section, ``POWER SUPPLY ROUTING'' for power distribution circuit.
When you perform trouble diagnoses, read GI section, ``HOW TO FOLLOW FLOW
CHART IN TROUBLE DIAGNOSES'' and ``HOW TO PERFORM EFFICIENT DIAGNOSIS
FOR AN ELECTRICAL INCIDENT''.
RS

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 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.
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.
+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.
PRECAUTION
RS-1

Precautions for SRS ``AIR BAG'' and ``Seat Belt
Pre-tensioner'' Service
+Do not use a circuit tester to check SRS circuits unless instructed to in this Service Manual.
+Before servicing the SRS, turn ignition switch ``OFF'', disconnect both battery cables and wait for 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 ``
S'' 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 it with the pad side facing upward.
+Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
+Instrument panel assembly should be replaced after air bag in¯ates if damaged.
Special Service Tools
Tool number
Tool nameDescriptionApplication
Seat belt
pre-ten-
sionerAir Bag
System
KV99106400
Deployment tool
NT357
Disposing of air bag mod-
ule
XX
KV99105300
Air bag module
bracket
NT354
Anchoring air bag module
ÐX
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)ÐX
KV999R0020
Deployment tool
adapters for seat
belt pre-tensioner
NT721
XÐ
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-8

Description
The air bag deploys if the diagnosis sensor unit activates while the ignition switch is in the ``ON'' or ``START''
position.
SRS Component Parts Location
SBF564HA
SRS452
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-10

Maintenance Items
CAUTION:
Do not use a circuit tester to check SRS circuit.
1. Check operation of ``AIR BAG'' warning lamp.
After turning ignition key to ``ON'' position, both warning lamps
illuminate. The ``AIR BAG'' warning lamp will go off after about
7 seconds if no malfunction is detected.
If any of the following warning lamp conditions occur, immedi-
ately check the air bag or seat belt pre-tensioner system. Refer
to RS-30 for details.
+The ``AIR BAG'' warning lamp does not illuminate when the
ignition switch is turned ``ON''.
+The ``AIR BAG'' warning lamp does not go off about 7 seconds
after the ignition switch is turned ``ON''.
+The ``AIR BAG'' warning lamp blinks about 7 seconds after the
ignition switch is turned ``ON''.
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 or instrument
panel. Check harness cover and connectors for damage, ter-
minals for deformities, and harness for binding.
+Install driver air bag module to steering wheel to check ®t or
alignment with the wheel.
+Check steering wheel for excessive free play.
+For dual air bag system, install passenger air bag module to
instrument panel to check ®t or alignment with the instrument
panel.
(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) Harness related to SRS
+Check connectors for poor connections, damage, and terminals
for deformities.
+Check harnesses for binding, cha®ng 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.
+Perform self-diagnosis for seat belt pre-tensioner using
bulb or CONSULT. Refer to ``SRS Operation Check'' for details.
(RS-30)
CAUTION:
Replace previously used special bolts, ground bolt and anchor
bolt with new ones.
SRS451
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-11

Removal and Installation Ð Diagnosis Sensor
Unit and Seat Belt Pre-tensioner
CAUTION:
+Before servicing SRS, turn the ignition switch off, disconnect both battery cables and wait for at
least 3 minutes.
+The special bolts are coated with bonding agent while the other bolt is for ground. Do not use old
bolts after removal; replace with new ones.
+Check diagnosis sensor unit and seat belt pre-tensioner for proper installation.
+Check diagnosis sensor unit 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 or rust.
+Replace diagnosis sensor unit and seat belt pre-tensioner if they have been dropped or sustained
an impact.
+After replacement of diagnosis sensor unit and seat belt pre-tensioner, check SRS function and
perform self-diagnosis for SRS. Refer to ``SRS Operation Check'' for details (RS-30).
+Do not attempt to disassemble diagnosis sensor unit and seat belt pre-tensioner.
+Do not expose seat belt pre-tensioner to temperatures exceeding 80ÉC (176ÉF).
REMOVAL OF DIAGNOSIS SENSOR UNIT
1. Disconnect driver and passenger air bag module connectors.
Also, disconnect seat belt pre-tensioner connector.
2. Remove console ®nisher, console box assembly and instru-
ment panel stay cover. Refer to ``INSTRUMENT PANEL'' in BT
section.
3. Remove rear heater duct and foot duct. (If equipped with rear
heater duct and foot duct.)
4. Remove bolt and also remove special bolts using the TAMPER
RESISTANT TORX (Size T50), from diagnosis sensor unit.
5. Disconnect diagnosis sensor unit connector. Then remove the
diagnosis sensor unit.
NOTE:
+To install, reverse the removal procedure sequence.
REMOVAL OF SEAT BELT PRE-TENSIONER
For removal of seat belt pre-tensioner, refer to ``Front Seat Belt'' for
details. (RS-3)
NOTE:
+To install, reverse the removal procedure sequence.
SRS453
SRS454
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-12