1995 NISSAN ALMERA N15 Service Manual

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)-
Dual AirBag System
Trouble Diagnoses forAir Bag Warning Lamp
DIAGNOSTIC PROCEDURE 4
SYMPTOM: "AIRBAG" warning lampdoesnotturn off.

{f

UP
SIDE
•

T

AIRBAG

EE3J
Is
air bag module deployed?

No

Is SRS "AirBag" fuse(10A) OK?
Yes Replace
airbag module
and diagnosis sensor
unit. Refer toCOLLISION
DIAGNOSIS, (RS-40).
Replace fuse.

I ~
SELECT SYSTEM
01

I
ENGINE
I

AIRBAG

MRS125A
00

Connect
CONSULT andtouch No
Replace diagnosis sensor
"START".
----....

unit.
• Is "AIRBAG" displayedon
CONSULT?
~Yes
Is harness connection betweenwarning No
Connect warning lamp
lamp anddiagnosis sensorunitOK?
~

anddiagnosis sensorunit
Yes properly.
Ifwarning lamp
still does notgooff,
replace harness.
[RePlace diagnosissensorunit.

DIAGNOSTIC PROCEDURE 5
SYMPTOM: "AIRBAG" warning lampdoesnotturn on.

{f
+

METER

UP
SIDE

EE3J

MRS127A
Is
warning lampfuseOK?
Yes
Is warning lampLEDOK?
Yes
Is harness connection betweenwarning
lamp anddiagnosis sensorunitOK?
Yes

I
Replace diagnosis sensorunit.

RS-38
No
Replace fuse.
Replace warning lamp
LED.
Connect warning lamp
harness properly. Ifwarn-
ing lamp stilldoes not
come on,replace har-
ness.

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
Schematic
SINGLE AIRBAG SYSTEM

FUSE

8
9
2

3 4

AIR BAG
MODULE
DRIVER'S
SQUIB SIDE

RS-41
COMBINA
nON
METER (AIR BAG
WARNING
LAMP)

10

7
SPIRAL
CABLE
AIR BAG
DIAGNOSIS
SENSOR UNIT

HRS001

•

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
DIAGNOSTIC PROCEDURE 7
(@
without CONSULT)
Checking SRSoperation byusing "AIRBAG" warning lamp-
User mode

1. After turning ignition switchfrom"OFF" to"ON", "AIR
BAG" warning lampoperates.
2. Compare "AIRBAG" warning lampoperation tothe chart
below.

Note: CONSULT cannotbeused fortrouble diagnoses.

"AIR BAG" warning lampoperation -User mode

1. Normal
IGNON
ON
!--

OFF J Approx.I _

I}
sec...
I

2. Abnormal -Ifthe warning lampshows asfollows, checktheSRS immediately.
e Blinking
e Warning lampdoes notilluminate atall.
ON
OFF
ON
OFF o.5~sec.
IGN ON

,----,

I I

I I

I
I

•

ecootiooo::JOO_IG_N_O_N _
OFF MRS106
RS-43

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