airbag NISSAN ALMERA N15 1995 Manual PDF

COLLISIONDIAGNOSIS -Single AirBag System

To repair theSRS "AIR BAG", perform thefollowing steps:

When SRSisactivated inacollision:

CD
Remove theairbag module.

@
Remove thesteering wheelassembly.

@)
Check thespiral cableusingthetable shown below:
• Ifthe spiral cableshows anyvisible damage suchasdents, cracks, ordeformation, replaceit
with anew one.

@
Install newsteering wheelassembly.

CID
Install newairbag module.

@
Conduct self-diagnosis using"AIRBAG" warning lamptoensure thatentire SRSoperates properly.
Refer toRS-43 fordetails.

When SRSisnot activated inacollision:

CD
Check theSRS components usingthetable shown below:
• Ifthe SRS components showanyvisible damage suchasdents, cracks, ordeformation, replace
them withnewones.

@
Conduct self-diagnosis using"AIRBAG" warning lamptoensure thatentire SRSoperates properly.
Refer toRS-43 fordetails.

SRS inspection

Part SRSisactivated SRSisNOT activated
Air bag module REPLACE 1.Remove airbag module. Checkharness coverandconnectors fordamage,
Install withnew terminalsfordeformities, andharness forbinding.
bolts. 2.Install airbag module intothesteering wheeltocheck fitand alignment
with thewheel.
3. No damage found,reinstall withnewbolts.
4. Ifdamaged-REPLACE. Airbag must bedeployed beforediscarding.
Steering wheel REPLACE 1.Visually checksteering wheelfordeformities.
assembly (includ- 2.Check harness andconnectors fordamage, andterminals fordeformities.
ing diagnosis sen- 3.Check diagnosis sensorunitfordents, cracks ordeformities.
sor unit).
Donot remove diagnosis sensorunitfrom steering wheel.

4. Install airbag module tocheck fitor alignment withsteering wheel.
5. Ifno damage isfound, reinstall thesteering wheelassembly.
6.
If
damaged-REPLACE.
Spiral cable 1.Check spiralcablefordents, cracks ordeformities.
2. Check connectors andprotective tapefordamage.
3. Check
steering wheelfornoise, binding orheavy operation.
4.
If
no damage isfound, reinstall withnewbolts.
5. If
damaged-REPLACE.
Harness andCon- 1.
Check connectors forpoor connection, damage,andterminals fordeformities.
nectors 2.
Check harness forbinding, chafing,cuts,ordeformities.
3. Ifno damage isfound, reinstall theharness andconnectors.
4. Damaged-REPLACE damagedsectionofharness. Donot attempt torepair, spliceormodify any
SRS harness.

RS-45
•

PRECAUTIONSANDPREPARATION
Precautions
SUPPLEMENTAL RESTRAINTSYSTEM(SRS)"AIRBAG"
(Dual AirBag System)

The Supplemental RestraintSystem"AirBag" usedalong withaseat belt,helps toreduce therisk or
severity ofinjury tothe driver andfront passenger inafrontal collision. TheSupplemental Restraint
System consists ofair bag modules (locatedinthe center ofthe steering wheelandonthe instrument
panel onthe passenger side),adiagnosis sensorunit,warning lamp,wiring harness andspiral cable.
Information necessarytoservice thesystem safelyisincluded inthe
RSsection
ofthis Service Manual.

WARNING: • Toavoid rendering theSRS inoperative, whichcouldincrease therisk ofpersonal injuryordeath
in the event ofacollision whichwould resultinair bag inflation, allmaintenance mustbeperformed
by an authorized NISSANdealer.
• Improper maintenance, includingincorrectremovalandinstallation ofthe SRS, canlead topersonal
injury caused byunintentional activationofthe system.
• Donot use electrical testequipment onany circuit related tothe SRS unless instructed tointhis
Service Manual. SRSwiring harnesses arecovered withyellow insulation eitherjustbefore the
harness connectors orfor the complete harness,foreasy identification.
SUPPLEMENTAL RESTRAINTSYSTEM(SRS)"AIRBAG"
(Single AirBag System)

The Supplemental RestraintSystem"AirBag" andused along withaseat belt,helps toreduce therisk
or severity ofinjury tothe driver inafrontal collision. TheSupplemental RestraintSystemconsists of
an air bag module (located inthe center ofthe steering wheel),adiagnosis sensorunit,warning lamp,
wiring harness andspiral cable. Information necessarytoservice thesystem safelyisincluded inthe

RS section
ofthis Service Manual.

WARNING: • Toavoid rendering theSRS inoperative, whichcouldincrease therisk ofpersonal injuryordeath
in the event ofacollision whichwould resultinair bag inflation, allmaintenance mustbeperformed
by an authorized NISSANdealer.
• Improper maintenance, includingincorrectremovalandinstallation ofthe SRS, canlead topersonal
injury caused byunintentional activationofthe system.
• Donot use electrical testequipment onany circuit related tothe SRS unless instructed tointhis
Service Manual.
STEERINGSYSTEM
• Before disassembly, thoroughlycleantheoutside ofthe unit.
• Disassembly shouldbedone inaclean workarea. Itis important toprevent theinternal partsfrom
becoming contaminated bydirt orother foreign matter.
• Place disassembled partsinorder, onaparts rack,fore"asier andproper assembly.
• Use nylon cloths orpaper towels toclean theparts; common shopragscanleave lintthat might
interfere withtheir operation.
• Before inspection orreassembly, carefullycleanallparts withageneral purpose, non-flammable
solvent.
• Before assembly, applyacoat ofrecommended ATF*tohydraulic parts.Vaseline maybeapplied to
O-rings andseals. Donot use any grease.
• Replace allgaskets, sealsandO-rings. Avoiddamaging O-rings,sealsandgaskets duringinstalla-
tion. Perform functional testswhenever designated.

*:
Automatic transmission fluid
ST-2

STEERINGWHEELANDSTEERING COLUMN
Removal andInstallation

SEC. 484.487.488

_~ ~4.0-4.9 (0.4 -0.5, 35-43)

ij] :
N.m (kg-m, in-Ib)

co;J :
N.m (kg-m. ft-Ib) With
airbag
Withoutairbag

SST538C

G)
Airbag module

@
Horn pad

@
Steering wheel
@

Spiral cable

@
Column cover

@
Combination switch
(J)

Steering columnassembly

@
Lower joint

@
Boot

CAUTION (SRSmodels only): •
• The rotation ofthe spiral cable(SRS"Airbag" component
part) islimited. Ifthe steering gearmust beremoved, set
the front wheels inthe straight-ahead direction.Donot
rotate thesteering columnwhilethesteering gearis
removed.
• Remove thesteering wheelbefore removing thesteering
lower jointtoavoid damaging theSRS spiral cable.

STEERING WHEEL
With AirBag

• Remove airbag module andspiral cable.
Refer to"Removal -Air Bag Module andSpiral Cable",
"SUPPLEMENTAL RESTRAINTSYSTEM"inRS section.

SBF812E ST-9

STEERINGWHEELANDSTEERING COLUMN
Removal andInstallation (Cont'd)

• Align spiral cablecorrectly wheninstalling steeringwheel.
a. Set thefront wheels inthe straight-ahead position.
b. Make surethatthespiral cableisin the neutral position.
\ Theneutral position isdetected byturning left2.5revolu-
~ tionsfromtheright endposition. Alignthetwo marks (~').

CAUTION:
The spiral cablemaysnap duetosteering operation ifthe cable
is installed inan improper position.
Also, withthesteering linkagedisconnected, thecable may
snap byturning thesteering wheelbeyond thelimited number
of turns. (Thespiral cablecanbeturned upto2.5 turns fromthe
neutral position toboth theright andleft.)
MBF487BA
•Remove steering wheelwithTool.

Without AirBag

1. Remove hornpad.
Insert acrosshead screwdriver intohole onlower sideof
spoke andremove clamp.

Lift
horn padoffbyhand.

Three spoke type
Cross headscrewdriver SST502C
SST495CA ST-10

MANUALSTEERING GEARANDLINKAGE (ModelR24N)
Removal andInstallation
SEC. 480
A :
N.m (kg-m, tt-Ib)

(!)
Hole cover

@
Lower joint
@

Manual steering gearassembly

@
Steering gearmounting clamp
tt'J

29•39

(3.0 -4.0,22 -", ~

~
@~ SST056CA

@
Rack mounting insulator

@
Cotter pin

CAUTION:
The rotation ofthe spiral cable(SRS"Airbag" component part)
is limited.
If
the steering gearmust beremoved, setthe front
wheels inthe straight-ahead direction.Donot rotate thesteer-
ing column whilethesteering gearisremoved.

• Detach tie-rodoutersockets fromknuckle armswithTool.
• Initially, tightennutontie-rod outersocket andknuckle arm
to 29 to39 N'm (3to 4kg-m, 22to29 ft-Ib).
• Tighten nutfurther toalign nutgroove withthefirst pinhole
so cotter pincan beinstalled.

CAUTION:
Tightening torquemustnotexceed 49N.m (5kg-m, 36ft-Ib).
ST-14

POWERSTEERING GEARANDLINKAGE (ModelPR24AC)
Removal andInstallation

~ :N.m (kg-m, in-Ib)

[O.J :
N. m (kg-m, ft-Ib)
~~.~

';'-------t"J
29•39 (3.0 •4.0, 22~ ~.'.. ~"'-

:;. --f8\~ ~
d( ~ ~

~ ~~ ~Vehiclefront

[O.J
73-97 (7.4 •9.9, 54•72) ~
' SST568C

CD
Lower joint

@
Hole cover

@
Insulator bracket
@

Rear cover cap

@
Gear andlinkage assembly

@
Rack mounting insulator
(J)

Gear housing mounting bracket

@
Cotter pin

CAUTION: •

• The rotation ofthe spiral cable(SRS"Airbag" component
part) islimited.
If
the steering gearmust beremoved, set
the front wheels inthe straight-ahead direction.Donot
rotate thesteering columnwhilethesteering gearis
removed.
• Remove thesteering wheelbefore removing thesteering
lower jointtoavoid damaging theSRS spiral cable.

• Detach tie-rodoutersockets fromknuckle armswithTool.
• When disconnecting steeringshaftlower joint,follow the
procedure shownbelow.
1. Remove nutsforfitting thehole cover.
2. Disconnect thelower jointwhile shifting thehole cover.

ST-19