1995 NISSAN ALMERA N15 Service Manual

TROUBLEDIAGNOSES -Supplemental RestraintSystem(SRS)-
Dual AirBag System
Self-diagnosis DIAGNOSTIC PROCEDURE 1(@ 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.

"AIR BAG" warning lampoperation -User mode -

IGN ON

i

ON
J
I

OFF ~~----------------
MRS095A
SRS
condition
No malfunction is
detected. No further actionisnec-
essary. Reference
item

ON
OFF
The
system hasproblem GotoDIAGNOSTIC PRO-
and needs tobe repaired CEDURE2,or 3(RS-33
as indicated. or34).

MRS096A

lGN ON

ON •
OFF
Jr--------------------

MRS097A

IGN ON

ON
OFF --------------------
MRS098A
Air
bag isdeployed. GotoCOLLISION DIAG-
NOSIS (RS-40).
Fuse, diagnosis sensor GotoDIAGNOSTIC PRO-
unit orharness ismal- CEDURE 4(RS-38).
functioning andneeds to
be repaired.
Diagnosis sensorunitor GotoDIAGNOSTIC PRO-
"AIR BAG" warning CEDURE5(RS-38).
lamp circuit isshorted or
open andneeds tobe
repaired.

NOTE:
If "AIR BAG" warning lampoperates differently fromtheoper-
ations shown above, referto"AIR BAG" warning lampopera-
tion -Diagnosis mode-,
DIAGNOSTIC PROCEDURE3,RS-34.
Then repair asnecessary.

RS-32

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
•

•SELF-DIAG RESULTS.
0

FAILURE DETECTED
• NO SELF DIAGNOSTIC
FAILURE INDICATED.
TROUBLE
DIAGNOSES -Supplemental RestraintSystem(SRS)-
Dual AirBag System
Self-diagnosis (Cont'd)

If no self-diagnostic failureisdetected on"SELF-DIAG
RESULTS", nofurther actionisnecessary. Touch"BACK" key
of CONSULT untilSELECT SYSTEM MODEappears, thenturn
off CONSULT.

FURTHER TESTING
MAY BEREQUIRED.
**

ERASE "PRINT
I

SRS044

8.Touch "PRINT".
9. Compare diagnostic codestothe CONSULT DIAGNOSTIC
CODE CHART, pageRS-36.
10. Touch "BACK" keyofCONSULT untilSELECT SYSTEM
MODE appears, thenturnoffCONSULT.
11. Turn ignition switch"OFF", thendisconnect CONSULTand
both battery cables.
12. Repair thesystem asoutlined bythe "Repair order"in
CONSULT DIAGNOSTIC CODECHART, thatcorresponds to
the problem code.Forreplacement procedureofcomponent
parts, refertoRS-12.
13. After repairing thesystem, conduct DIAGNOSTIC PROCE-
DURE 2again.
If repair iscompleted, turnignition switch"OFF", anddis-
connect CONSULT. ThengotoDIAGNOSTIC PROCEDURE 1,
page RS-32.

Door switch DIAGNOSTIC
PROCEDURE 3
(00
without CONSULT)
Inspecting SRSmalfunctioning partsbyusing "AIRBAG" warn-
ing lamp -Diagnosis mode

1. Open driver's door.
2. Turn ignition switchfrom"OFF" to"ON".
3. Press driver's doorswitch atleast 5times within 7seconds
after turning ignition switch"ON".
SRS isnow inDiagnosis mode.
4. "AIR BAG" warning lampoperates indiagnosis modeas
follows:

NOTE:

If
SRS does notenter diagnostic mode,gotoDIAGNOSTIC
PROCEDURE 6,page RS-39.
RS-34

TROUBLEDIAGNOSES -Supplemental RestraintSystem(SRS)-
Dual AirBag System
Self-diagnosis (Cont'd)
No.
ON
OFF
IGN
ON

t
"AIR
BAG" warning lampoperation -Diagnosis mode-

@
through
@
are repeated.

MRS100A
SRS
condition
No malfunc-
tion is
detected. No further
action isnec-
essary.

2 ON
OFF
IGN
ON

I

7 sec.
@)

@
(c)
3sec.
2 sec. 2sec. Varies withmalfunctioning part

MRS099A
@

through
@
are repeated.

NOTE: @ -
Interval I

@ -
Start signal (Startsignal
identifies displaymodes)

@ -
Interval II

@ -
Indicates malfunctioning
part (0.5sec. ONand 0.5
sec. OFF iscounted as
one flash.) The
system
has problem
and needs to
be repaired.

5. Malfunctioning partisindicated bythe number offlashes
(part
@).
Compare thenumber offlashes toWARNING
LAMP FLASH CODECHART, pageRS-37, andlocate mal-
functioning part.
6. Turn ignition switch"OFF", anddisconnect bothbattery
cables.
7. Repair thesystem asoutlined bythe "Repair order"in
WARNING LAMPFLASH CODECHART thatcorresponds to
the flash code. Forreplacement procedureofcomponent
parts, refertoRS-12.
8. After repairing thesystem, conduct DIAGNOSTIC PROCE-
DURE 3again.
If repair iscompleted, turnignition switch"OFF"andthen
turn "ON". Pressdriver's doorswitch atleast 5times within
7 seconds afterturning ignition switch"ON".
9. The system isreset fromDiagnostic modetoUser mode.
Next, gotoDIAGNOSTIC PROCEDURE 1,page RS-32. •
RS-35

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