1995 NISSAN ALMERA N15 airbag connector

TROUBLEDIAGNOSES -Supplemental RestraintSystem(SRS)-
Dual AirBag System
Self-diagnosis (Cont'd)
DIAGNOSTIC PROCEDURE2
(00
withCONSULT)
Inspecting SRSmalfunctioning partsbyusing CONSULT -
Diagnosis mode

1. Turn ignition switch"OFF".
2. Connect "CONSULT" toData linkconnector.

MRS124A
AIRBAG SELF-DIAG RESULTS
NISSAN
CONSULT
START
SUB MODE
I

SRS046

I ~
SELECT SYSTEM
01

I
ENGINE
1
1 '

1-----1

I
I

I 1

MRS125A

I ~
SELECT DIAGMODE
01

I
ECUDISCRIMINATED NO.
I

'======

1 -
1 -

1========
SRS043
• SELF-DIAG RESULTS.
0

FAILURE DETECTED
CONTROL UNIT

I
ERASE
II
PRINT
I

SRS064
3.
Turn ignition switch"ON".
4. Touch "START".
5. Touch "AIRBAG".
6. Touch "SELF-DIAG RESULTS".
7. Diagnostic codesaredisplayed on"SELF-DIAG RESULTS".

RS-33
•

NoSRSisingood order. Set-
ting theCONSULT tothe
Diagnosis modeisimpos-
sible. Nofurther actionis
necessary.
Is
"AIR BAG" warning lampblinking?

Yes
MRS115A
TROUBLE
DIAGNOSES -Supplemental RestraintSystem(SRS)-
Dual AirBag System
Trouble Diagnoses forAir Bag Warning Lamp

m
(Cont'd)
DIAGNOSTIC PROCEDURE 6
SYMPTOM: SRSdoes notenter Diagnostic mode.

m

NoCharge battery.

SRS058
Disconnect
bothbattery cablesand
check battery voltage usingcircuit
te.ster .
• Is battery voltage morethan9V?
Remove driver'sdoorswitch andcheck
continuity betweendriver'sdoorswitch
connector terminals
G)
and
@
under
the following conditions.
No

Replace driver'sdoor
switch.

Condition
Door switch isdepressed
(Door isclosed).
Door switch isreleased
(Door isopen). Continuity

YES

NO
MRS104
00

Check harness continuity betweendriv-
er's door switch connector terminal
@

and body ground .
• Does continuity exist?

Yes

Replace diagnosis sensorunit.

I
Go 10DIAGNOSTIC PROCEDURE3.No

Replace orrepair har-
ness.

•

SRS060
RS-39

COLLISIONDIAGNOSIS -Dual AirBag System

To repair theSRS, perform thefollowing steps.

When SRSisactivated inacollision:

CD
Replace thediagnosis sensorunit.

@ Remove
theairbag modules.

@
Check theSRS components usingthetable shown below:
• Replace anySRS components showing
visible
signsofdamage (dents,cracks, deformation).

@
Conduct self-diagnosis. Referto"Self-diagnosis" fordetails (RS-32). Ensuretheremainder ofthe
SRS isoperating properly.

Install newairbag modules.

@
Conduct self-diagnosis again.

When SRSisnot activated inacollision:

CD
Check theSRS components usingthetable shown below:
• Replace anySRS components showingvisiblesignsofdamage (dents,cracks, deformation).

@
Conduct self-diagnosis usingCONSULT and"'AIR BAG" warning lamp.Referto"Self-diagnosis" for
details (RS-32). EnsureentireSRSoperates properly.

SRS inspection

Part SRSisactivated
SRSisNOT activated
Air bag module REPLACE
1.Remove airbag module. Checkharness coverandconnectors fordamage,
(driver andpassen-
Installwithnew terminalsfordeformities, andharness forbinding.
ger side) bolts.
2-1.Install driverairbag module intothesteering wheeltocheck fitand align-
ment withthewheel.
2-2. Install passenger airbag module intotheinstrument paneltocheck fit
with theinstrument panel.
3. No damage found,reinstall withnewbolts.
4. Ifdamaged-REPLACE. Airbag must bedeployed beforediscarding.
Instrument panel
REPLACE 1.Check instrument panelforbending, deformities, orcracks.
Install withnew
2.Ifno damage isfound, reinstall withnewbolts.
bolts. 3.Ifdamaged-REPLACE.
Diagnosis sensor REPLACE
1.Check caseandbracket fordents, cracks ordeformities.
unit Installwithnew
2.Check connectors fordamage, andterminals fordeformities.
bolts. 3.Ifno damage isfound, reinstall withnewbolts.
4. Ifdamaged-REPLACE.
Steering wheel
1.Visually checksteering wheelfordeformities.
2. Check harness (builtintosteering wheel)andconnectors fordamage, andterminals fordeformi-
ties.
3. Install airbag module tocheck fitor alignment withsteering wheel.
4. Check steering wheelforexcessive freeplay.
5. Ifno damage isfound, reinstall withnewbolts.
6. Ifdamaged-REPLACE.
Spiral cable
1.Visually checklock(engagement) pinsandcombination switchfordamage.
2. Check connectors, flatcable andprotective tapefordamage.
3. Check steering wheelfornoise, binding orheavy operation.
4. Ifno damage isfound, reinstall withnew bolts.
5. Ifdamaged-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-40

TROUBLEDIAGNOSES -Supplemental RestraintSystem(SRS)
Single AirBag System
Self-diagnosis (Cont'd)
REPAIR PROCEDURES
CAUTION:
Before servicing airbag, turntheignition switchoffand disconnect bothbattery cablesandwail forat
least 10minutes.

Warning lampoperation Explanation
Repairorder
Open orshort inthe air
1.Visually checkthewiring harness andconnectors.
Air bag
bagmodule circuit.
2.Replace airbag module.
Warning lampblinks. hasnot
3.Replace steering wheelassembly (including diag-
deployed. Malfunctioning
diagnosis
sensor unit nos
issensor unit).
Warning lampfuseisblown. 1.
Check warning lampfuse.
2. Visually checkthewiring harnesses andconnec-
Open inthe warning lampcircuit
tors.
Warning lampdoes not
Malfunctioning LED 3.
Check warning lampLED.
illuminate atall. 4.Replace steering wheelassembly (including diag-
Malfunctioning combinationmeter nos
issensor unit).
5. Replace airbag harness assembly.
Malfunctioning diagnosissensorunit
6.Replace combination meter.
Air bag hasdeployed: Go
toCOLLISION DIAGNOSIS -Single AirBag
System, pageRS-45.
1. Check airbag fuse.
SRS airbag fuse isblown.

2.
Visually checkthewiring harnesses andconnectors
Warning lampiscontinu-
forcombination meter,diagnosis sensorunitand
ously ON.
Openinair bag harness orspiral
spiralcable.
cable circuit 3.
Replace spiralcable.
4. Replace steeringwheelassembly (including diag-
Malfunctioning diagnosissensorunit nosis
sensor unit).
5. Replace airbag harness assembly.

*;
After airbag isdeployed, warninglampilluminates untiltheignition switchisturned OFF.When theIgnition switchisturned
ON again, Ihewarning lampilluminates forapproximately 7seconds. Itthen blinks ifmalfunction isfound, orgoes outwhen
there isno malfunction.
Follow theprocedures innumerical orderwhenrepairing malfunctioning parts.Confirm whether malfunction iseliminated using
the airbag warning lampeachtimerepair isfinished. Ifmalfunction isstill observed, proceedtothe next step. When malfunc-
tion iseliminated, furtherrepairworkisnot required.
RS-44

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