2006 NISSAN PATROL steering

NVH Troubleshooting Chart
Use the chart below to help you ®nd the cause of the symptom. If necessary, repair or replace these parts.
Reference pageÐ
Ð
PD-6
PD-6
PD-19
PD-29
PD-19
PD-14
Ð
Refer to MA section.
Refer to PROPELLER SHAFT in this chart.
Refer to DIFFERENTIAL in this chart.
NVH in FA, RA section
NVH in FA section
NVH in FA section
NVH in RA section
NVH in BR section
NVH in ST section
Possible cause and
SUSPECTED PARTS
Uneven rotation torque
Excessive joint angle
Rotation imbalance
Excessive runout
Rough gear tooth
Improper gear contact
Tooth surfaces worn
Incorrect backlash
Companion ¯ange excessive runout
Improper gear oil
PROPELLER SHAFT
DIFFERENTIAL
AXLE AND SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
SymptomPRO-
PELLER
SHAFTNoiseXXXX XXXXXXX
Shake XXXXXXX
VibrationXXXX XX X X
DIFFER-
ENTIALNoiseXXXXXXX XXXXXX
X: Applicable
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
PD-4

NVH Troubleshooting Chart
Use the chart below to help you ®nd the cause of the symptom. If necessary, repair or replace these parts.
Reference pageRA-4
RA-14
Ð
Ð
Ð
RA-12
RA-15
RA-5
NVH in PD section
NVH in PD section
NVH in FA section
Refer to REAR AXLE AND REAR SUSPENSION in this chart.
NVH in FA section
NVH in FA section
NVH in FA section
NVH in BR section
NVH in ST section
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Shock absorber deformation, damage or de¯ection
Bushing or mounting deterioration
Parts interference
Spring fatigue
Suspension looseness
Stabilizer bar fatigue
Wheel bearing damage
PROPELLER SHAFT
DIFFERENTIAL
FRONT AXLE AND FRONT SUSPENSION
REAR AXLE AND REAR SUSPENSION
TIRES
ROAD WHEEL
AXLE SHAFT
BRAKES
STEERING
SymptomREAR
AXLE AND
REAR
SUSPEN-
SIONNoiseXXXXXX XXX XXXXX
ShakeXXXX X X X XXXXX
VibrationXXXXXXXXXX
ShimmyXXXX X XX XX
Judder X X X X X X X X
Poor quality ride or handlingXXXXX XX X XX
X: Applicable
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
RA-3

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

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 Air Bag Module
and Spiral Cable
Removal Ð Air Bag Module and Spiral Cable
CAUTION:
+Before servicing SRS, turn the ignition switch off, discon-
nect both battery cables and wait for at least 3 minutes.
+Always work from the side of air bag module.
1. Remove lower lid from steering wheel, and disconnect air bag
module connector.
2. Remove side lids. Using the TAMPER RESISTANT TORX (Size
T50), remove left and right special bolts. Air bag module can
then be removed.
SRS455
SBF811E
SBF812E
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-13

CAUTION:
+Always place air bag module with pad side facing upward.
+Do not attempt to disassemble air bag module.
+The special bolts are coated with bonding agent. Do not
use old bolts after removal; replace with new ones.
+Replace air bag module if it has been dropped or sustained
an impact.
+Do not expose the air bag module to temperatures exceed-
ing 90ÉC (194ÉF).
+Do not allow oil, grease or water to come in contact with
the air bag module.
3. Set steering wheel in the neutral position.
4. Disconnect horn connector and remove nuts.
5. Using steering wheel puller, remove steering wheel. Be careful
not to over-tighten puller bolt on steering wheel.
CAUTION:
Do not tap or bump the steering wheel.
6. Remove steering column cover.
7. Remove four screws securing the spiral cable. Unlock the spi-
ral cable connector. Then disconnect the spiral cable connec-
tor. The spiral cable can then be removed.
CAUTION:
+Do not attempt to disassemble spiral cable.
+Do not apply lubricant to the spiral cable.
Removal Ð Front Passenger Air Bag Module
CAUTION:
+Before servicing SRS, turn the ignition switch off, discon-
nect both battery cables and wait for at least 3 minutes.
+Always work from the side of or under air bag module.
1. Remove glove box assembly. Refer to ``INSTRUMENT PANEL''
in BT section for details.
MRS120A
SBF814E
SBF239F
SRS384
SRS456
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Removal Ð Air Bag Module and Spiral Cable
(Cont'd)
RS-14

Installation Ð Air Bag Module and Spiral Cable
1. Set the front wheels in the straight-ahead position.
2. Make sure that the spiral cable is in the neutral position. The
neutral position is detected by turning left about 2.5 revolutions
from the right end position. Align the two marks (
,
m).
CAUTION:
+The spiral cable may snap due to steering operation if the
cable is installed in an improper position.
+Also, with the steering linkage disconnected, the cable
may snap by turning the steering wheel beyond the limited
number of turns. The spiral cable can be turned to the left
about 2.5 turns from the right end position.
3. Connect and lock spiral cable connector and tighten with
screws. Install steering column cover.
4. Install steering wheel, aligning with spiral cable pin guides, and
pull spiral cable through.
5. Connect horn connector and engage spiral cable with pawls in
steering wheel. Move air bag module connector away from
steering wheel lower lid opening.
6. Tighten nut.
:29-39Nzm (3.0 - 4.0 kg-m, 22 - 29 ft-lb)
7. Position air bag module and tighten with new special bolts.
8. Connect air bag module connector.
9. Install all lids.
10. Conduct self-diagnosis to ensure entire SRS operates properly.
(Use CONSULT or warning lamp check.)
Before performing self-diagnosis, connect both battery cables.
11. Turn steering wheel to the left end and then to the right end fully
to make sure that spiral cable is set in the neutral position.
If air bag warning lamp blinks or stays ON (at the User mode),
it shows the spiral cable may be snapped due to its improper
position. Perform self-diagnosis again (use CONSULT or warn-
ing lamp). If a malfunction is detected, replace the spiral cable
with a new one.
12. Perform self-diagnosis again to check that no malfunction is
detected.
Installation Ð Front Passenger Air Bag Module
+Always work from the side of air bag module.
1. Install front passenger air bag module on steering member.
+Ensure harness is not caught between rear of air bag module
and steering member.
2. Connect in¯ator connector to body harness connector.
3. Install in¯ator connector on steering member.
SRS276
SRS166
SBF812EB
SRS457
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-16