NISSAN ALMERA N15 1995 Service Manual

SUPPLEMENTALRESTRAINTSYSTEM(SRS)

Visually checkSRScomponents
Diagnosis sensorunit
Check diagnosis sensorunitand bracket fordents, cracks
or deformities.
Check connectors fordamage, andterminals fordeformi-
ties.
Air bag module andsteering wheel
Remove airbag module fromsteering wheelorinstrument
panel. Check harness coverandconnectors fordamage,
terminals fordeformities, andharness forbinding.
Install driversideairbag module tosteering wheeltocheck
fit or alignment withthewheel.
Check steering wheelforexcessive freeplay.
For dual airbag system, installpassenger sideairbag
module toinstrument paneltocheck fitor alignment withthe
instrument panel.

Maintenance
Items

1. Check "AIRBAG" warning lampoperation
After turning ignition keyto"ON" position, "AIRBAG"
warning lampilluminates. The"AIR BAG" warning lamp
will turn offafter about 7seconds ifno malfunction is
detected. If any ofthe following airbag warning lampconditions
occur, immediately checktheairbag system. RefertoRS-32
and 43for details.
The warning lampdoesnotilluminate whentheignition
switch isturned "ON".
The warning lampdoesnotturn offabout 7seconds after
the ignition switchisturned "ON".
The warning lampturns offabout 7seconds aftertheigni-
tion switch isturned "ON",butitturns onorflashes again.

•
MRS115A
•
•
2. (1)
•
•
(2)
•
•
•
•

(3) Spiral cable
• Check spiralcablefordents, cracks, ordeformities.
• Check connectors andprotective tapefordamage.
• Check steering wheelfornoise, binding orheavy operation. •
(4) Main harness andairbag harness (Fordual airbag system
only)
• Check connectors forpoor connections, damage,andtermi-
nals fordeformities.
• Check harnesses forbinding, chafingorcut.

CAUTION: Replace previously usedscrews withnewones.
RS-11

SUPPLEMENTALRESTRAINTSYSTEM(SRS)
Removal andInstallation -Diagnosis Sensor
Unit
CAUTION:
• Before servicing SRS,turntheignition switchoff,disconnect bothbattery cablesandwait foratleast
10 minutes.
• The special boltsarecoated withbonding agentwhiletheother boltisfor ground. Donot use old
bolts afterremoval; replacewithnewones.
• For single airbag system, donot separate diagnosis sensorunitfrom steering wheel.
• For dual airbag system, checkdiagnosis sensorunitforproper installation.
• Check diagnosis sensorunittoensure theyarefree ofdeformities, dents,cracks orrust. Ifthey show
any visible signsofdamage, replacethemwithnewones.
• Check diagnosis sensorunitbrackets toensure theyarefree ofdeformities orrust.
• Always workfromtheside ofair bag module.
• Replace diagnosis sensorunitifithas been dropped orsustained animpact.
SEC. 253~

IT
r
Grou~? bolt~

G ~~ ~
Forward mark
Fr?nt
_--I
d--!
Dia~no:iS senSlrunit

!

Special bOIt~ -

t"'J
15-25 N.m
(1.5 •2.5 kg-m,
11-
18 ft-Ib)
MRS116A REMOVAL
OFDIAGNOSIS SENSORUNIT

1. Disconnect driverandpassenger airbag module connec-
tors. Also, disconnect seatbeltpre-tensioner connector.
2. Remove consolebox.Refer to"INSTRUMENT PANEL"in8T
section.
3. Disconnect diagnosissensorunitconnector.
4. Remove boltandalso remove specialboltsusing the
TAMPER RESISTANT TORX(SizeT50),fromdiagnosis sen-
sor unit.
Then remove thediagnosis sensorunit.

NOTE:
• Toinstall, reverse theremoval procedure sequence.
• After replacement, performself-diagnosis forSRS. Refer to
"Self-diagnosis" fordetails (RS-32andRS-43).
RS-12

SUPPLEMENTALRESTRAINTSYSTEM(SRS)
Removal andInstallation -Seat Belt
Pre-tensioner (MechanicalType)

CAUTION:
• Donot attempt todisassemble seatbeltpre-tensioner assembly.
• Donot drop orimpact seatbeltpre-tensioner assembly.Thismay cause seatbeltpre-tensioner to
deploy.
• Check seatbeltpre-tensioner assemblyfordamage ordeformities.
• Replace seatbeltpre-tensioner assemblythatshows anyvisible signofdamage.
• Donot expose seatbeltpre.tensioner totemperatures exceeding80°C(176°F).
Seat beltpre-tensioner retracter
SEC. 868
(4.4-5.6 kg-m,
32 -41 fl-Ib) For
removal ofseat beltpre-tensioner, referto"Front Seat
Belt" fordetails (RS-3).
CAUTION:
• Before removing seatbeltpre-tensioner assembly,besure
to lock safety levertomake seatbeltpre-tensioner inoper-
ative. Donot unlock thesafety leverbefore reinstalling seat
belt pre-tensioner assembly.
• After removing, placeseatbeltpre-tensioner assemblyina
box (such asacard board box)withthesafety leverfacing
down.
• After reinstalling seatbeltpre-tensioner assembly,release
safety leverlocktomake seatbeltpre-tensioner operative.
• When installing newseat beltpre-tensioner assembly,pull
clip outtorelease safetyleverlock.Failure topull clipout
will result initcoming intocontact withcenter pillartrim,
thus hampering installation.
NOTE:
• Toinstall, reverse theremoval procedure sequence.

MRS117AI

[i]
Safety leverposition

Operational range
for pre-tensioner When
installing
new pre-tensioner
(Clip isinplace.)
When
removing
pre-tensioner:
Hook safety
leverover
the
pawl (burr) onretractor to
lock, then
remove
pre-tensioner.
•

Seat beltpre-tensioner isoperative.

RS-13
Seat
beltpre-tensioner isinoperative.
SRS125

SUPPLEMENTALRESTRAINTSYSTEM(SRS)
Removal andInstallation -Air Bag Module and
Spiral Cable(DualAirBag System)
SEC. 253-484
Horn relayswitch connector
Special bolt~

to:J
15-25 (1.5 -2.5,
11-
18)

to:J :
N.m (kg-m. ft-Ib) Special
bolt~

to:J
15.25 (1.5•2.5,
11•
18)

Side lidRH
Air bag module

to:J
29-39 (3.0 -4.0, 22-29)

Lower lid
MRS118A
Removal andInstallation -Air Bag Module and
Spiral Cable(Single AirBag System)
SEC. 253-484
Airbag module connector
Spiral cable

A'

Special bolt~ ~

t"J
15•25 (1.5 •2.5, 11•18)- ~

Side lidLH/
"-J

to:J :
N. m (kg-m. ft-Ib) ~DiagnOSiS
sensorunit

(Do notseparate thediagnosis
sensor unitfrom steering wheel.)

Special boll~

to:J
15-25 (1.5 -2.5,
11-
18)

~~ r
S;d, lidRH

~ (]A;,b'9
mod",
MRS119A
RS-14

SUPPLEMENTALRESTRAINTSYSTEM(SRS)
Removal -Air Bag Module andSpiral Cable
CAUTION:
• Before servicing SRS,turntheignition switchoff,discon-
nect both battery cablesandwait foratleast 10minutes.
• Always workfromtheside ofair bag module.

1. Remove lowerlidfrom steering wheel,anddisconnect air
bag module connector.

SBF811E
2.Remove sidelids.Using theTAMPER RESISTANT TORX
(Size T50), remove leftand right special bolts.Airbag mod-
ule can then beremoved.

SBF812E CAUTION:
• Always placeairbag module withpadside facing upward.
• Donot attempt todisassemble airbag module.
• The special boltsarecoated withbonding agent.Donot use
old bolts afterremoval; replacewithnew ones.
MRS120A

Air bag
module

SBF814E•
•
• Replace
airbag module ifithas been dropped orsustained
an impact.
Do not expose theairbag module totemperatures exceed-•
•
ing 90°C (194°F).
Do not allow oil,grease orwater tocome incontact withthe
air bag module.
SBF239F
3.
Set steering wheelinthe neutral position.
4. Disconnect hornconnector andremove nuts.
5. Using steering wheelpuller, remove steering wheel.Be
careful nottoover-tighten pullerboltonsteering wheel.

CAUTION:
• Donot tap orbump thesteering wheel.

6. Remove steering columncover.
7. Disconnect connectorsandremove thefour screws. The
spiral cablecanthen beremoved.

CAUTION:
• Donot attempt todisassemble spiralcable.
• Donot apply lubricant tothe spiral cable.
RS-15

SUPPLEMENTALRESTRAINTSYSTEM(SRS)
Removal -Front Passenger AirBag Module
(Dual AirBag System)

CAUTION:
• Before servicing SRS,turntheignition switchoff,discon-
nect both battery cablesandwait foratleast 10minutes.
• Always workfromtheside ofor under airbag module.
1. Open theglove boxlid.
2. Disconnect inflatorconnector frombody harness airbag
connector.
3. Remove gloveboxassembly. Referto"INSTRUMENT
PANEL" inBT section fordetails.

Air bag
module
4.
Remove thenuts andspecial boltsusing theTAMPER
RESISTANT TORX(SizeT50jfrom front passenger airbag
module.
Take outtheairbag module fromtheinstrument panel.
• The airbag module isheavy andshould besupported using
both hands during removal.

MRS122A
CAUTION:
• Always placeairbag module withpadside facing upward.
• Donot attempt todisassemble airbag module.
• The special boltsarecoated withbonding agent.Donot use
old bolts afterremoval; replacewithnewcoated bolts.
• Donot insert foreign objects (screwdriver, etc.)intoairbag
module connector.
• Donot use acircuit testertocheck theairbag module har-
ness connector.
• Replace airbag module ifithas been dropped orsustained
an impact.
• Donot expose theairbag module totemperatures exceed-
ing 90°C (194°F).
• Donot allow oil,grease orwater tocome incontact withthe
air bag module.

SBF814E RS-16

SUPPLEMENTALRESTRAINTSYSTEM(SRS)
Dual airbag system Installation
-Air Bag Module andSpiral Cable

1. Set thefront wheels inthe straight-ahead position.
2. Make surethatthespiral cableisin the neutral position.
The neutral position isdetected byturning leftabout 2.5
revolutions fromtheright endposition. Alignthetwo marks

(~ ).
CAUTION:
• The spiral cablemaysnap duetosteering operation ifthe
cable isinstalled inan improper position.
Also, withthesteering linkagedisconnected, thecable may
snap byturning thesteering wheelbeyond thelimited num-
ber ofturns. (Thespiral cablecanbeturned upto2.5 turns
from theneutral position toboth theright andleft.)
• Always workfromtheside ofair bag module.

3.
Connect spiralcablecOnnector andtighten withscrews.
Install steering columncover.

Single airbag system
Dual airbag system MRS074AA
SRS037-A
4.Install steering wheelsetting spiralcablepinguides, and
pull spiral cablethrough.
5. Connect hornconnector andengage spiralcablewithpawls
in steering wheel.
6. Tighten nut.

~: 29-39 N'm (3.0-4.0 kg-m, 22-29 ft-Ib)
MRS075AA RS-17
•

7.Position airbag module andtighten withnewspecial bolts.
8. Connect airbag module connector.
9. Install alllids.
10. Conduct self-diagnosis toensure entireSRSoperates prop-
erly. (Use CONSULT orwarning lampcheck.)
Before performing self-diagnosis, connectbothbattery
cables.
11. Turn steering wheeltothe leftend andthen tothe right end
fully tomake surethatspiral cableisset inthe neutral
position.
If air bag warning lampblinks orstays ON(atthe user
mode), itshows thespiral cablemaybesnapped duetoits
improper position.Performself-diagnosis again(useCON-
SUL Tor warning lamp).Ifa malfunction isdetected, replace
the spiral cablewithanew one.

SBF812EA
MRS046AA
SUPPLEMENTAL
RESTRAINTSYSTEM(SRS)
Installation -Air Bag Module andSpiral Cable
(Cont'd)

G\\
--------~
~\)

..~l~~
\\\?\\

Special bolt~~ "'(\\

cc:J
15-25 N.m ~

(1.5 -2.5 kg-m,

11 -18 ft-Ibl

Installation-Front Passenger AirBag Module
(Dual AirBag System)
• Always workfromtheside ofair bag module.

1. Install frontpassenger airbag module onsteering member.
• Ensure harness isnot caught between rearofair bag mod-
ule and steering member.
2. Install glovebox'assembly. (Gloveboxlidisopen.)
3. Connect airbag module connector tobody harness connec-
tor.
4. Close theglove boxlid.

RS-18

SUPPLEMENTALRESTRAINTSYSTEM(SRS)
Disposal ofAir Bag Module andSeat Belt
Pre-tensioner

• Before disposing ofair bag module andseat beltpre-tensioner, orvehicles equipped withsuch
systems, deploythesystems. Ifsuch systems havealready beendeployed duetoan accident, dis-
pose ofas indicated in"DISPOSING OFAIR BAG MODULE ANDSEAT BELTPRE-TENSIONER" (RS-

24).

• When deploying theairbag module, alwaysusetheSpecial Service Tool;Deployment tool
KV99106400.
• When deploying theairbag module andseat beltpre-tensioner, standatleast 5m (16 ft)away from
the deployment component.
• Due toheat, leave airbag module unattended formore than30minutes afterdeployment. Alsoleave
seat beltpre-tensioner unattendedformore than10minutes afterdeployment.
• Besure towear gloves whenhandling adeployed airbag module andseat beltpre-tensioner.
• Never applywater toadeployed airbag module.
• Wash yourhands cleanafterfinishing- work.
• Donot dispose ofthe airbag module andseat beltpre-tensioner un-deployed.

CHECKING DEPLOYMENT TOOL
Connecting tobattery

• Place thevehicle outdoors withanopen space ofat least 6
m (20
ft)
on allsides.
• Use avoltmeter tomake surethevehicle batteryisfully
charged.

CAUTION:
The battery mustshow voltage of9.6V ormore.

Remove thebattery fromthevehicle andplace iton dry wood

Deployment
tool blocksapproximately 5m (16 ft)away fromthevehicle.

(KV99106400j SRS005-B•
Wait 10to12 minutes afterthevehicle batteryisdiscon-
nected beforeproceeding.
• Connect redclip ofdeployment tooltobattery positive ter-
minal andblack cliptonegative terminal.

Make surethepolarity iscorrect. Theright sidelamp inthe tool,
marked "deployment toolpower", shouldglowwithagreen
light. Ifthe right sidelamp glows red,reverse theconnections
to the battery.

•

SBF266H Deployment
toolcheck

Press thedeployment toolswitch tothe "ON" position. Theleft
side lamp inthe tool, marked "airbagconnector voltage"
should illuminate.
If
it
does notilluminate, replacethetool.

Air bag deployment toollamp illumination chart(Battery
connected)

Leftside lamp, green' RighI
sidelamp,
Switch operation "AIR
BAGCONNEC- green'
"DEPLOYMENT TOOL
TOR VOLTAGE"
POWER"
OFF OFF ON
ON ON
ON
,. Ifthis lamp glows red,the1001 isconnecled tothe battery incorrectly.
Reverse theconnections andmake surethelamp glows green.

RS-19

"'-Passenger airbag bracket

(KV99105300) Deploymentofdriver's airbag module (outside of
vehicle)

1. Make an8.5 mm (0.335 in)diameter holeinpassenger air
bag bracket (SST:KV99105300) atthe position showninfig-
ure atleft.
2. Using wire,secure airbag module topassenger airbag
bracket (SST:KV99105300) attwo places.

CAUTION:
Use wire ofal least 1mm (0.04 in)diameter.

3. Firmly secure passenger airbag bracket (SST:KV99105300)
with airbag module attached, inavise.
4. Connect deployment tool(SST: KV99106400) toair bag mod-
ule connector.
5. Connect redclip ofdeployment tooltobattery positive ter-
minal andblack cliptonegative terminal.
6. The lamp onthe right sideofthe tool, marked "deployment
tool power", shouldglowgreen, notred.
7. Press thebutton onthe deployment tool.Theleftside lamp
on the tool, marked "airbagconnector voltage",willillumi-
nate andtheairbag module willdeploy.

CAUTION:
When deploying theairbag module, standatleast 5m (16
ft)

away fromtheairbag module.
SRS141
SUPPLEMENTAL
RESTRAINTSYSTEM(SRS)
Disposal ofAir Bag Module andSeat Belt
Pre-tensioner (Cont'd)
DEPLOYMENT PROCEDURES FORAIRBAG MODULE
(OUTSIDE OFVEHICLE)

Unless thevehicle isbeing scrapped, deployingtheairbag in
the vehicle isnot recommended. Thismaycause damage tothe
vehicle interior.
Anchor airbag module inavise secured toafirm foundation
during deployment.

15
(0.59) 15(0.59)

°170
('.89~

Air bag module
Passenger
air
bag bracket

(KV99105300)

Passenger
air
bag bracket

(KV991 05300)

•.
5~335) dl"~

Deployment tool

(KV99106400)

mm
(in)

SRS020-A

15 (0.59) 15(0.59)

°'70 (.... ~
Deployment
ofpassenger airbag module (outside of
vehicle)

1. Make an8.5 mm (0.335 in)diameter holeinpassenger air
bag bracket (SST:KV99105300) atthe position showninfig-
ure atleft.

Passenger airbag bracket

(KV99105300)

mm (in)
SRS141
RS-20