1995 NISSAN ALMERA N15 srs wiring

TROUBLEDIAGNOSES -Supplemental RestraintSystem(SRS)-
Dual AirBag System
Self-diagnosis (Cont'd)
CONSULT DIAGNOSTIC CODECHART

Diagnostic item
Explanation Repair
order
Recheck SRSateach replacement.
NO SELF DIAGNOSTIC
•No malfunction isdetected.

-

FAILURE INDICATED.
AIRBAG MODULE
•Driver's airbag module circuitisopen.

1.
Visually checkthewiring harness connec-
[OPEN) (includingthespiral cable)
tions.
AIRBAG MODULE
•Driver's airbag module circuitisshorted 2.
Replace thespiral cable.
3. Replace driver'sairbag module.
[VB-SHORT] tosome power supply circuit. (including
(Beforedisposing ofit,itmust be
the spiral cable)
deployed.)
AIRBAG MODULE
•Driver's airbag module circuitisshorted 4.
Replace thediagnosis sensorunit.
[GND-SHORT] toground. (including thespiral cable) 5.
Replace theairbag harness.
AIRBAG MODULE
•Driver's airbag module circuitsare
[SHORT] shortedtoeach other.
ASSIST A/BMODULE •Front passenger airbag module circuitis
1.

Visually checkthewiring harness connec-
[OPEN] open. tions.
ASSIST A/BMODULE
•Front passenger airbag module circuitis2.
Replace frontpassenger airbag module.
(Before disposing ofit,itmust be
[VB-SHORT] shortedtosome power supply circuit.
deployed.)
ASSIST A/BMODULE •Front passenger airbag module circuitis3.
Replace thediagnosis sensorunit.
[GND-SHORT) shortedtoground. 4.
Replace theairbag harness.
ASSIST A/BMODULE •Front passenger airbag module circuits
[SHORT] areshorted toeach other.
CONTROL UNIT
•Diagnosis sensorunitisout oforder.
1.
Visually
checkthewiring harness connec-
tions.
2. Replace thediagnosis sensorunit.
3. Replace theairbag harness.
4. Replace themain harness.

*
Follow theprocedures innumerical orderwhenrepairing malfunctioning parts.Confirm whether malfunction iseliminated
using theairbag warning lamp(inuser mode) orCONSULT eachtimerepair isfinished.
If
malfunction isstill observed, pro-
ceed tothe next step. When malfunction iseliminated, furtherrepairworkisnot required.
RS-36

TROUBLEDIAGNOSES -Supplemental RestraintSystem(SRS)
Dual AirBag System
Self-diagnosis
(Cont'd)

WARNING LAMPFLASH CODECHART

Warning Flashcode
@

Explanation Repair
order
lamp (#offlashes)
RecheckSRSateach replacement.

0
Nomalfunction isdetected.
-

2 The
driver's airbag module circuit
1.Visually checkthewiring harness connections.
is out oforder.
2.Replace thespiral cable.

D.
3.
Replace thedriver's airbag module.

E
(Before
disposing ofit,itmust bedeployed.)

(Ij

-
4.Replace thediagnosis sensorunit.

en

c
5.Replace theairbag harness.

c

ca
7
The
diagnosis sensorunitisout of 1.Visually checkthewiring harness connections.

~

order. 2.
Replace thediagnosis sensorunit.

C)

3.Replace theairbag harness.

«

OJ
.

4.Replace themain harness .

cr:

;:(
8
The
front passenger airbag module 1.Visually checkthewiring harness connections.
circuit isout oforder. 2.Replace thefront passenger airbag module.
(Before disposing of
it,it
must bedeployed.)
3. Replace thediagnosis sensorunit.
4. Replace theairbag harness.

* Follow theprocedures innumerical orderwhen repairing malfunctioning parts.Confirm whether malfunction iseliminaled
using theairbag warning lamp(inuser mode) orCONSULT eachtimerepair isfinished. Ifmalfunction isstill observed, pro-
ceed tothe next step. When malfunction iseliminated, furtherrepairworkisnol required.
RS-37
•

TROUBLEDIAGNOSES -Supplemental RestraintSystem(SRS)-
Single AirBag System
Wiring Diagram -SRS -
SINGLE AIRBAG SYSTEM

RS-SRS-01

IGNITION SWITCH
ON orSTART
AIRBAG
DIAGNOSIS
SENSOR
UNIT
Refer
toEL-POWER.
SPIRAL
CABLE

@:

Withtachometer

@:
Without tachometer

i(f ...
@
30
@
40

*2"'@9'@31
,

*3 ... @16 @30

,

FUSE
BLOCK
(J/B)

~

3A

1211

10A

rn

CHID
m

~BR/W~F.BR/W~

I
GID@!)
I

O-JD- BR/W.3ID)- BR/W-:E-O

Y
B!wt I

Ii*llJ
":3
I
t

COMBINA nON BR/W~ R/W B
METER
m-~~ffl---m

(AIR BAG
WARNING
LAMP)

@)

~

U*.21
B/R

B/R
-!-

~ AIR
BAG
MODULE (SQUIB)
rT

B B
~ ~

~ @D

I
I

1

I

I
I

L
~

r-----------------,

I I

1 ~I

1~*4 3*5
1

: [g]lJTIJ
W4Y :

I 1

L
~
~

lIL..m
BR
Refer
tolast page
(Foldout page).

HRS003
RS-42

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

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