R E S T R A IN T S Y S T E M
RS
S E C T IO N
CONTENTS PRECAUTION
2
Supp Supple leme ment ntal al BAG"
Rest Restra rain intt
Syst System em
(SRS (SRS)) "AIR
(Dual Air Bag System) Rest Restra rain intt
BAG"
Air Bag System)
(Single
Syst System em
(SRS (SRS)) "AIR "AIR
SEAT BELTS
-
Air Bag Bag Modu odule
17
Inst Instal alla lati tion on Module
-
Fron Frontt Pass Passen eng ger
2
Disp Dispo osal sal
3
Pre-tensioner
of Air Air Bag Bag Modul odule e
TROUBLE TROUBLE DIAG DIAGNOS NOSES ES -
Rear Seat Bel!.
5
Restraint Restraint System System (SRS)
Preca recaut utio ion ns
for for SRS SRS "Air "Air
Pre-tensioner" Special
Bag" Bag"
and "Sea "Seatt
Belt Belt
25
Dual Dual Air Bag System
Parts Location
Items
and and Inst Instal alla lati tion on (Mechanical
-
Diag Diagno nosi sis s
C ab able
-
Wiring
11
Self-diagnosis Tro Trouble
Seat Seat Belt Belt PrePre13 Air Bag Mod Modu ule
(D (Dual Air Bag System)
and and Inst Instal alla lati tion on Cable (S (Single
-
Removal
-
Air Bag Bag Mo Module
Rem Removal oval
-
Fron Frontt Pass Passen enge gerr
(Dual Air Bag System)
14
Air Bag Modu Module le
Air Ba Bag System) and Sp Spiral
Cable
Schematic
10 Sens Sensor or
Type)
and and Inst Insta allat llatio ion n
and Spiral
Repair
Restrain Restraintt System System (SR (SRS) S) -
12
Rem Removal oval
for for Quic Quick k
8
and and Inst Instal alla lati tion on
and Spiral
Diag Diagno nose ses s
Tools
Unit.
Rem Removal oval
Trou Troubl ble e
Supplemental Supplemental
9
tensioner
25
TROUBLE TROUBLE DIAGNO DIAGNOSE SES S -
SRS Component
Rem Removal val
Supplemental Supplemental
8
Description
Remo Remova vall
and and Seat Seat Belt Belt
Service
Service
Maintenance
How How to Per Perfo form rm and Accurate
18 19
3 8
Air Air Bag Bag
(Dual Air Bag System)
Front Seat Belt
SUPPLEMENTAL SUPPLEMENTAL RESTRAINT SYSTEM SYSTEM (SRS)
and Spi Spira rall
Cable 2
Supp Supple leme ment ntal al
Inst Instal alla lati tion on
15
28 -
SRS -
29 32
Dia Diagnoses ses
for for Air Air Bag Bag Wa Warnin rning g
COLLIS COLLISIO ION N DIAGN DIAGNOS OSIS IS -
Lamp
38
Dual Dual Air Bag Syste System m
.40
TROUBLE TROUBLE DIAGNO DIAGNOSE SES S -
Supplemental Supplemental
Res t r ai n t Sy s t em (SRS) System
Si n g l e A i r B ag
Diagram
41 -
SRS -
Self-diagnosis
COLLIS COLLISIO ION N DIAGN DIAGNOS OSIS IS -
16
COLLISI COLLISION ON DIAGNO DIAGNOSI SIS S -
42 43
Single Air Bag
System
Air Air Bag Bag Mod Module ule
• 41
Schematic Wiring
14
Diagram
28
.45
Seat Seat Belt
Pre-tensioner
When hen you rea read wiring wiring diagra diagrams: ms: • Read ead GI sect section ion,, "HOW "HOW TO READ READ WIR WIRING DIAG DIAGR RAMS AMS" . • See EL secti section, on, "POWE "POWER R SUPPLY ROUTING" for powe power distri distribut bution ion circuit. When hen you perfor perform m troubl trouble e diagno diagnose ses, s, rea read GI sect section ion,, "HOW "HOW TO FO FOLLOW LLOW FLOW LOW CHAR CHART T IN TR TROUBLE OUBLE DIAGN AGNOSE OSES" and and "HOW "HOW TO PER PERFORM EFFICIENT DIAG DIAGN NOSIS FOR AN ELECT ELECTRI RICAL CAL INCI INCIDE DENT NT". ".
.46 .46
•
PRECAUTION Supple Suppleme menta ntall Restraint straint System ystem (SR (SRS) " AIR AIR BAG" BAG" (Dual ual Air Bag Bag System) ystem) The The Supp Supple lem menta ntal Restra strain intt Syste ystem m" Air Bag", ag", use used alon along g with a sea seatt belt, elt, help helps s to redu reduce ce the the risk risk or seve severi rity ty of inju injury ry to the the driv driver er and fron frontt pass passe enger nger in a fro fronta ntal coll collis isio ion. n. The The Supp upplem lementa entall Restr estra aint int Syste System m cons consist ists s of air air bag bag modul odules es (loca (locate ted d in the the cente centerr of the the steerin steering g whee wheell and and on the the instr instrum umen entt pane panell on the the pass passen enge gerr side) side),, a dia diagn gnos osis is sens sensor or unit, unit, warn warnin ing g lam lamp, wirin wiring g harn harnes ess s and and spiral spiral cabl cable. e. WARNING: • To a vo vo id id r en en de der in in g t he he S RS RS i no no pe per at at iv iv e, e, w hi hi ch ch c ou ou ld ld i nc nc re reas e t he he r i sk sk o f p er er so so na nal i nj nj ur ur y o r d ea eat h in the eve event of a colli collisio sion n which which would would resul resultt in air air bag bag infla inflatio tion, n, all all maint mainte enance nance must must be perfo performe rmed d by an an authoriz authorized ed NIS NISSAN SAN deal dealer er.. • Imprope mproperr maint mainte enance nance,, includ including ing incorr incorre ect remov remova al and and insta installa llatio tion n of the the SR SRS, can can lea lead to perso persona nall injury injury cause caused d by uninte unintenti ntiona onall activa ctivatio tion n of the the syst syste em. • Do n o t u se se e l ec ec tr tr ic ic al al t es es t e qu qu ip ip me men t o n an an y c i rc rc ui ui t r el el at at ed ed t o th th e SR SRS u nl nl es es s i ns ns tr tr uc uc te ted t o i n t hi hi s Ser vi vi ce ce Man ua ual . SRS w i r in in g h ar ar ne nes se ses ar e c ov ov er er ed ed w it it h y el el lo lo w i ns ns ul ul at at io io n ei th th er er j us us t b ef ef or or e t he he harne harness ss connec connectors tors or for for the compl complet ete e harne harness, ss, for eas easy y identif identifica ication tion..
Supplemen upplementa tall Restra Restraint int System ystem (SRS SRS) "AIR BAG" BAG" (Single ingle Air Bag Bag System) ystem) The Sup Suppl plem emen enta tall Restr estra aint int Syste ystem m "Air "Air Bag", g", used used alon along with a sea seatt belt belt,, help helps s to reduc reduce e the the risk risk or seve severi rity ty of inju injury ry to the the driv drive er in a fro fron ntal tal colli collisi sion on.. The Supp Supple lem menta entall Restr estra aint int Syste ystem m con consist sists s of an an air air bag modu module le (loc (locat ate ed in the the cen center ter of the the ste steerin ering g whee heel), l), a dia diagn gnos osis is sens sensor or unit unit,, warn arning ing lam lamp, wirin wiring g harn harnes ess s and and spiral spiral cabl cable. e. WARNING: • To av av oi oi d r en en de der in in g t he he S RS RS i no no pe per at at iv iv e, e, w hi hi ch ch c ou ou ld ld i nc nc re reas e t he he r i sk sk o f p er er so so na nal i nj nj ur ur y o r d ea eat h in the eve event of a collis collision ion which which would would resul resultt in air air bag bag infla inflatio tion, n, all maint mainte enance nance must must be perfo performe rmed d by an author authoriz ized ed NIS NISSAN SAN deal dealer er.. • Imprope mproperr maint mainte enance nance,, includ including ing incorr incorre ect remov remova al and insta installatio llation n of the SRS, can can lea lead to perso persona nall injury injury cause caused d by uninte unintenti ntiona onall activa ctivatio tion n of the the syste system. m. • Do n o t u se se e le lec tr tr ic ic al al t es es t e qu qu ip ip me men t o n a ny ny c ir ir cu cu it it r el el at at ed ed t o th th e S RS RS u nl nl es es s i ns ns tr tr uc uc te ted t o i n t hi hi s Service Service Manual. Manual.
RS-2
PRECAUTION Supple Suppleme menta ntall Restraint straint System ystem (SR (SRS) " AIR AIR BAG" BAG" (Dual ual Air Bag Bag System) ystem) The The Supp Supple lem menta ntal Restra strain intt Syste ystem m" Air Bag", ag", use used alon along g with a sea seatt belt, elt, help helps s to redu reduce ce the the risk risk or seve severi rity ty of inju injury ry to the the driv driver er and fron frontt pass passe enger nger in a fro fronta ntal coll collis isio ion. n. The The Supp upplem lementa entall Restr estra aint int Syste System m cons consist ists s of air air bag bag modul odules es (loca (locate ted d in the the cente centerr of the the steerin steering g whee wheell and and on the the instr instrum umen entt pane panell on the the pass passen enge gerr side) side),, a dia diagn gnos osis is sens sensor or unit, unit, warn warnin ing g lam lamp, wirin wiring g harn harnes ess s and and spiral spiral cabl cable. e. WARNING: • To a vo vo id id r en en de der in in g t he he S RS RS i no no pe per at at iv iv e, e, w hi hi ch ch c ou ou ld ld i nc nc re reas e t he he r i sk sk o f p er er so so na nal i nj nj ur ur y o r d ea eat h in the eve event of a colli collisio sion n which which would would resul resultt in air air bag bag infla inflatio tion, n, all all maint mainte enance nance must must be perfo performe rmed d by an an authoriz authorized ed NIS NISSAN SAN deal dealer er.. • Imprope mproperr maint mainte enance nance,, includ including ing incorr incorre ect remov remova al and and insta installa llatio tion n of the the SR SRS, can can lea lead to perso persona nall injury injury cause caused d by uninte unintenti ntiona onall activa ctivatio tion n of the the syst syste em. • Do n o t u se se e l ec ec tr tr ic ic al al t es es t e qu qu ip ip me men t o n an an y c i rc rc ui ui t r el el at at ed ed t o th th e SR SRS u nl nl es es s i ns ns tr tr uc uc te ted t o i n t hi hi s Ser vi vi ce ce Man ua ual . SRS w i r in in g h ar ar ne nes se ses ar e c ov ov er er ed ed w it it h y el el lo lo w i ns ns ul ul at at io io n ei th th er er j us us t b ef ef or or e t he he harne harness ss connec connectors tors or for for the compl complet ete e harne harness, ss, for eas easy y identif identifica ication tion..
Supplemen upplementa tall Restra Restraint int System ystem (SRS SRS) "AIR BAG" BAG" (Single ingle Air Bag Bag System) ystem) The Sup Suppl plem emen enta tall Restr estra aint int Syste ystem m "Air "Air Bag", g", used used alon along with a sea seatt belt belt,, help helps s to reduc reduce e the the risk risk or seve severi rity ty of inju injury ry to the the driv drive er in a fro fron ntal tal colli collisi sion on.. The Supp Supple lem menta entall Restr estra aint int Syste ystem m con consist sists s of an an air air bag modu module le (loc (locat ate ed in the the cen center ter of the the ste steerin ering g whee heel), l), a dia diagn gnos osis is sens sensor or unit unit,, warn arning ing lam lamp, wirin wiring g harn harnes ess s and and spiral spiral cabl cable. e. WARNING: • To av av oi oi d r en en de der in in g t he he S RS RS i no no pe per at at iv iv e, e, w hi hi ch ch c ou ou ld ld i nc nc re reas e t he he r i sk sk o f p er er so so na nal i nj nj ur ur y o r d ea eat h in the eve event of a collis collision ion which which would would resul resultt in air air bag bag infla inflatio tion, n, all maint mainte enance nance must must be perfo performe rmed d by an author authoriz ized ed NIS NISSAN SAN deal dealer er.. • Imprope mproperr maint mainte enance nance,, includ including ing incorr incorre ect remov remova al and insta installatio llation n of the SRS, can can lea lead to perso persona nall injury injury cause caused d by uninte unintenti ntiona onall activa ctivatio tion n of the the syste system. m. • Do n o t u se se e le lec tr tr ic ic al al t es es t e qu qu ip ip me men t o n a ny ny c ir ir cu cu it it r el el at at ed ed t o th th e S RS RS u nl nl es es s i ns ns tr tr uc uc te ted t o i n t hi hi s Service Service Manual. Manual.
RS-2
SEAT SEAT BELTS BELTS CAUTION: • Fo r ve veh ic ic le les eq ui ui pp pp ed ed w it it h se seat b el el t p re re-t en en si si on on er er , r ef ef er er t o " Re Rem ov ov al al an d In In st st al al la lat io io n - Seat B el el t Pre-te re-tensio nsione nerr (Mec (Mecha hanica nicall Type Type)" )" when when removin removing g seat seat belt. Refe Referr to RSRS-13 13 for detai details. ls. • Do n ot ot d is is as as se sem bl bl e b uc uc kl kl e o r se seat b el el t as as se sem bl bl y. y. • Rep la lac e an ch ch or or b ol ol ts ts i f t he hey ar e d ef ef or or me med o r w or or n o ut ut . • Nev er er o ilil to to ng ng ue ue an d b uc uc kl kl e. e. any compone component nt of sea seat belt belt asse assembly mbly is questi questiona onable ble,, do not re repair. pair. Replace place the whole whole sea seat belt belt • If any assembly. • If webbi webbing ng is cut, cut, fra fraye yed, d, or da damage maged, d, repla replace ce seat seat belt belt asse assembly. mbly. • When hen repla replacin cing g sea seat belt belt asse assembl mbly, y, use a genui genuine ne sea seat belt belt asse assembl mbly. y. • A ft ft er er an y c o llll is is io io n, n, i ns ns pe pec t al l s ea eat b el el t a ss ss em em bl bl ie ies , i nc nc lu lu di di ng ng r et et ra rac to to rs rs an d o t he her at ta tac he hed h ar ar ddwares wares (i.e (i.e., ., guide rail rail set) set)..
Front Seat eat Belt Belt 4-DO 4-DOOR OR SEDAN SEDAN AND 5-DO 5-DOOR OR HATCH HATCHBACK BACK CAUTION: Befor Before e remov removing ing seat seat belt belt pre-t pre-te ensione nsionerr assembl ssembly, y, be sure sure to lock lock safe safety ty leve leverr to ma make sea seat belt belt prepretensi tensione onerr inope inopera rativ tive e. Do not unloc unlock k safe safety ty leve leverr befor before e reins reinsta talli lling ng sea seat belt belt pre-te pre-tensi nsione onerr assembl ssembly. y.
< D Remove ove @ Rem Remov ove e @ Rem Remove @ Rem Remov ove e @ Rem Remove ove @ Rem Remove ove
fron frontt seat seat.. Refer efer to "SEA "SEAT T" in BT sec sectio tion n for for deta details ils.. floor floor anch anchor or bolt. olt. adjus adjuster ter cov cover. er. shou shoulde lderr anch anchor or bolt. bolt. cent center er pilla pillarr uppe upperr and and lower lower garn garnish ishes es.. Refe Referr to "INTE "INTERI RIOR OR TRIM TRIM"" in BT BT sec sectio tion n for for deta details. ils. secon sec ond d sas sash h guide guide.. (J) Rem Remov ove e the the bolt bolt secur securin ing g seat seat belt pre-te pre-tens nsion ioner er retra retracto ctor, r, then then remov remove e seat seat belt belt and and seat seat belt pretension tensioner er retrac retractor tor.. @ Rem Remov ove e the the bolts bolts secu securin ring g seat seat belt belt adju adjuste ster, r, then then rem remove ove seat seat belt belt adjus adjuste ter. r. SEC. SEC. 769-868 769-868
rz 1
A
~ ~.t~<:.~ .<:.~
~. t;// ~>-..,\
~
~
0
.. .
~
t o J : N.m
43 - 55 (4 (4.4 - 5.6 5.6, 32 - 41) 41)
to J
(kg-m (kg-m,, ft-Ib) ft-Ib)
43 - 55 (4.4 (4.4 - 5.6, .6, 32 - 41) 41) MRS107A
RS-3
SEAT SEAT BELTS Front Sea Seat Belt Belt (Cont'd) 3-DOOR 3-DOOR HATCHBACK HATCHBACK CAUTION: Befor Before e remov removing ing sea seat belt belt pre-te pre-tensi nsione onerr asse ssembly, mbly, be sure sure to lock lock safe safety ty leve leverr to make make sea seat belt belt prepretensi tensione onerr inope inopera rativ tive e. Do not not unloc unlock k safe safety ty leve leverr befor before e reins reinsta talli lling ng sea seat belt belt pre-te pre-tens nsion ione er assembl ssembly. y.
C D Remov emove e fron frontt and and rear rear seat seats. s. Refer efer to "SEA "SEAT" in 8T secti section on for for deta detail ils. s. @ Remo Remove ve floor floor anch anchor or bolts bolts.. Remov ove e should shoulder er cover. cover. @ Rem @ Remo Remove ve shou should lder er anch anchor or bolt. bolt. Remov ove e rear rear side side lowe lowerr garn garnis ish. h. Refer efer to "INTE "INTERI RIOR OR TRIM TRIM"" in 8T sec sectio tion n for for deta details ils.. @ Rem @ Rem Remov ove e the the bolts bolts secu securin ring g seco second nd sash sash guide guide.. Remov ove e the the bolt bolts s secu securi ring ng seat seat belt belt prepre-te tens nsio ione nerr retr retrac acto tor, r, then then rem remove ove seat seat belt belt and and seat seat belt belt (!) Rem pre-ten pre-tensio sioner ner retract retractor. or. SEC. SEC. 769-86 769-868 8
[ O J 43
• 55 ((4. 4.4 4 • 5.6 5.6, 32 . 41)
4
@
>~",
to.J
~~.
~J.
/
/
--...""
43 • 55 55 (4.4 (4.4 • 5.6 5.6, 32 . 41)
55 (44 • 5~" 32 • 41) ,
tO J t o . J : N'm
~ //~ « ;~
(kg-m (kg-m.. ft-Ib) ft-Ib)
43 -.5 -.55 5 (4.4 (4.4 • 5.6 5.6, 32 . 41 41))
RS-4
MRS108A
SEAT BELTS
Rear Seat Belt 4-DOOR
SEDAN
C D Remove rear seat. Refer to "SEAT" @ Remove rear pillar garnish
in BT section for details, and rear parcel shelf finisher. Refer to "INTERIOR TRIM"
in BT section
for details.
@ ) Remove trunk room trim. Refer to "INTERIOR TRIM" in BT section for details. @ Remove each anchor bolt. @ Remove the bolt securing rear seat belt retractor, then remove seat belt retractor. SEC. 869
~q. 5
'",""
/
~
~-A 43
/"
----
~
- 55 (4.4 - 5.6, 32 - 41)
""
\
Anchor
~
~
bolt
43 - 55 (4.4 - 5.6, 32 • 41)
MRS109A
: N. m (kg-m, ft-Ib)
RS-5
SEAT BELTS Rear Seat Belt (Cont'd) 3-DOOR HATCHBACK •
Before removing seat belt, open back door and remove tonneau board. C D Remove rear seat. Refer to "SEAT" in BT section for details. @ Remove rear parcel shelf side escutcheon and luggage side lower finisher. Refer to "INTERIOR TRIM" in BT section for details. @ ) Remove shoulder anchor cover. @ Remove each anchor bolt. C I D Remove the bolt securing rear seat belt retractor, then remove seat belt retractor. SEC. 869
- Anchor --------
.....[O J 4 3 ~
) / I'll
bolt • 55
(4.4 • 5.6, 32 - 41)
Anchor bolt t o ; J 43 - 55 (4.4 • 5.6, 32 - 41)
t o ; J : N'm
(kg-m. ft-Ib)
MRS110A
RS-6
SEAT BELTS Rear Seat Belt (Cont'd) 5-DOOR HATCHBACK •
Before removing seat belt, open back door and remove tonneau board. in BT section for details. @ Remove rear parcel shelf side finisher and luggage side lower finisher. Refer to "INTERIOR TRIM" in BT section for details. @ ) Remove shoulder anchor cover. @ Remove each anchor bolt. @ ) Remove the bolt securing rear seat belt retractor, then remove seat belt retractor.
C D Remove rear seat. Refer to "SEAT"
SEC. 869
Anchor
~
~
: N.m (kg-m, ft-Ib)
bolt
43 - 55 (4.4 - 5.6, 32 - 41)
MRS111A
RS-7
SUPPLEMENTAL
RESTRAINT SYSTEM (SRS)
Precautions for SRS " Air Bag" and "Seat Belt Pre-tensioner" Service • •
• •
• • • •
Do not use a circuit tester to check SRS circuits. Before servicing the SRS. turn ignition switch "OFF", disconnect both battery cables and wait for at least 10 minutes. For approximately 10 minutes after the cables are removed, it is still possible for the air bag to deploy. Therefore, do not work on any SRS connectors or wires until at least 10 minutes have passed. For single air bag system, do not separate diagnosis sensor unit from steering wheel. For dual air bag system. diagnosis sensor unit must always be installed with their arrow marks pointing towards the front of the vehicle for proper operation. Also check diagnosis sensor unit for cracks. deformities or rust before installation and replace as required. The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt to turn steering wheel or column after removal of steering gear. Handle air bag module carefully. Always place it with the pad side facing upward. Do not use old bolts after removing any SRS parts; replace with new ones. Conduct self-diagnosis to check entire SRS for proper function. For dual air bag system, instrument panel assembly should be replaced after air bag inflates.
"Q"
Special Service Tools Tool number Tool name
Seat belt pre-tensioner*2
Description
KV991072So Air bag deployment kit
Application Dual Air Bag S stem
Single Air Bag S stem
X
X
Disposing of air bag module
KV99106400 Deployment tool
KV991065So Deployment tool adapters X For passenger air bag module NT353
KV99105300 Passenger air bag bracket
Anchor the passenger air bag module X
NT354
HT61961000and HT62152000combined *1 Special torx bit
c
Use for special bolts [TAMPER RESISTANT TORX (Size T50)) a: 3.5
(0.138)
dia.
b: 8.5 - 8.6 (0.335 • 0.339) dia. a
c: approx. 10
(0.39) sq.
Unit: mm (in)
NT361
*1: Special tool or commercial equivalent *2: Tools are not applicable because of its mechanical type.
RS-8
X
X
SUPPLEMENTAL
RESTRAINT SYSTEM (SRS)
Description The air bag deploys if the diagnosis "START" position.
sensor unit activates
while the ignition switch is in the "ON"
or
Single and dual air bag systems
Driver air bag module
Ignition switch
Diagnosis sensor unit
(ON or START)
• Auxiliary power source (condenser) o
Drive circuit
• CPU
• G sensor Passenger air bag module (For dual air bag system)
• Saling sensor Battery
MRS069AB
Seat belt pre-tensioner
G-Iorce when decelerating (greater than the predetermined setting)
Mechanical sensor
Mechanical trigger
Seat belt
Retractor shaft
Piston and wire rope
Combined into seat belt retractor
SRS126
RS-9
SUPPLEMENTAL
RESTRAINT SYSTEM (SRS)
SRS Component Parts Location Dual air bag system and seat belt pre-tensioner Spiral cable SEC. 251-253-484-680-868
Air bag module
Diagnosis
Single air bag system and seat belt pre-tensioner Air SEC. 253-484-868
Diagnosis
sensor
unit
bag module
sensor
unit MRS114A
RS-10
SUPPLEMENTAL
RESTRAINT SYSTEM (SRS)
Maintenance
MRS115A
Items
1. Check "AIR BAG" warning lamp operation After turning ignition key to "ON" position, "AIR BAG" warning lamp illuminates. The "AIR BAG" warning lamp will turn off after about 7 seconds if no malfunction is detected. If any of the following air bag warning lamp conditions occur, immediately check the air bag system. Refer to RS-32 and 43 for details. The warning lamp does not illuminate when the ignition • switch is turned "ON". The warning lamp does not turn off about 7 seconds after • the ignition switch is turned "ON". The warning lamp turns off about 7 seconds after the ignition switch is turned "ON", but it turns on or flashes again.
•
2. Visually check SRS components (1) Diagnosis sensor unit Check diagnosis sensor unit and bracket for dents, cracks or deformities. Check connectors for damage, and terminals for deformities.
• •
(2) Air bag module and steering wheel Remove air bag module from steering wheel or instrument • panel. Check harness cover and connectors for damage, terminals for deformities, and harness for binding. Install driver side air bag module to steering wheel to check • fit or alignment with the wheel. Check steering wheel for excessive free play . • For dual air bag system, install passenger side air bag • module to instrument panel to check fit or alignment with the instrument panel. (3) • • •
Spiral Check Check Check
cable spiral cable for dents, cracks, or deformities. connectors and protective tape for damage. steering wheel for noise, binding or heavy operation.
(4) Main harness and air bag harness (For dual air bag system only) • Check connectors for poor connections, damage, and terminals for deformities. • Check harnesses for binding, chafing or cut. CAUTION: Replace previously
RS-11
used screws with new ones.
•
SUPPLEMENTAL
RESTRAINT SYSTEM (SRS)
Removal and Installation Unit
Diagnosis Sensor
CAUTION: • Before servicing SRS, turn the ignition switch off, disconnect both battery cables and wait for at least 10 minutes. • Th e s p ec ial b ol ts ar e c oat ed w it h b o n di ng ag en t w hi le t he o t her b ol t i s f or g r ou nd . Do n o t u se o l d bolts after removal; replace with new ones. • Fo r s in gl e ai r b ag s ys tem , d o no t sep ar at e d iag no si s s en so r u ni t fr om s teer in g w heel . • For dual air bag system, check diagnosis sensor unit for proper installation. • Check diagnosis sensor unit to ensure they are free of deformities, dents, cracks or rust. If they show any visible signs of damage, replace them with new ones. • Ch ec k d iag no si s s en so r u ni t b rac ket s t o en su re t hey ar e f ree o f d ef or mi ti es o r r us t. • A lw ay s w or k f ro m t h e si de o f ai r b ag m od ul e. • Rep lac e d iag no si s s en so r u ni t i f i t h as b e en d ro pp ed o r su st ai ned an i mp ac t.
SEC. 253~
REMOVAL OF DIAGNOSIS
Forward G~ ~ ~
IT
r Grou~? bolt ~
Fr?nt _--I
d --e!
1.
mark
Dia~no:iS senSlr
unit
!
S pec ia l bO It ~
t"'J
-
15 - 25 N.m (1.5 • 2.5 kg-m, 11 - 18 ft-Ib)
MRS116A
SENSOR UNIT
Disconnect driver and passenger air bag module connectors. Also, disconnect seat belt pre-tensioner connector. 2. Remove console box. Refer to "INSTRUMENT PANEL" in 8T section. 3. Disconnect diagnosis sensor unit connector. 4. Remove bolt and also remove special bolts using the TAMPER RESISTANT TORX (Size T50), from diagnosis sensor unit. Then remove the diagnosis sensor unit. NOTE: • To install, reverse the removal procedure sequence. • After replacement, perform self-diagnosis for SRS. Refer to "Self-diagnosis" for details (RS-32 and RS-43).
RS-12
SUPPLEMENTAL
RESTRAINT SYSTEM (SRS)
Removal and Installation - Seat Belt Pre-tensioner (Mechanical Type) CAUTION: • Do not attempt to disassemble seat belt pre-tensioner assembly. • Do not drop or impact seat belt pre-tensioner assembly. This may cause seat belt pre-tensioner deploy. • Check seat belt pre-tensioner assembly for damage or deformities. • Replace seat belt pre-tensioner assembly that shows any visible sign of damage. • Do not expose seat belt pre.tensioner to temperatures exceeding 80°C (176°F).
Seat belt pre-tensioner
retracter
SEC. 868
(4.4 - 5.6 kg-m,
to
For removal of seat belt pre-tensioner, refer to "Front Seat Belt" for details (RS-3). CAUTION: • Before removing seat belt pre-tensioner assembly, be sure to lock safety lever to make seat belt pre-tensioner inoperative. Do not unlock the safety lever before reinstalling seat belt pre-tensioner assembly. • After removing, place seat belt pre-tensioner assembly in a box (such as a card board box) with the safety lever facing down. • After reinstalling seat belt pre-tensioner assembly, release safety lever lock to make seat belt pre-tensioner operative. • When installing new seat belt pre-tensioner assembly, pull clip out to release safety lever lock. Failure to pull clip out will result in it coming into contact with center pillar trim, thus hampering installation. NOTE: • To install, reverse the removal procedure sequence.
32 - 41 fl-Ib)
MRS117AI
[i] Safety
lever position
Operational range for pre-tensioner
When installing new pre-tensioner (Clip is in place.)
When removing pre-tensioner: Hook safety lever over the pawl (burr) on retractor to lock, then remove pre-tensioner.
Seat belt pre-tensioner
Seat belt pre-tensioner is operative.
RS-13
is inoperative.
SRS125
SUPPLEMENTAL
RESTRAINT SYSTEM (SRS)
Removal and Installation - Air Bag Module and Spiral Cable (Dual Air Bag System) SEC. 253-484 Special
bolt ~
t o : J 15.25
(1.5 • 2.5,
11 •
18)
Side lid RH
Air bag module
Horn relay switch connector
Special
t o : J 15 t o : J : N.m
to:J
bolt ~ 25 (1.5 - 2.5, 11 - 18)
29 - 39 (3.0 - 4.0, 22 - 29)
Lower lid
(kg-m. ft-Ib)
MRS118A
Removal and Installation - Air Bag Module and Spiral Cable (Single Air Bag System) DiagnOSiS sensor unit (Do not separate the diagnosis sensor unit from steering wheel.)
SEC. 253-484 Air bag module connector
Special boll ~
Spiral cable
~
~~ ~
Special
t"J
bolt ~
15 - 25 (1.5 - 2.5,
r
11 -
18)
S;d, lid RH
(]
A;, b'9 mod",
' A ~
15 • 25 (1.5 • 2.5, 11 • 18)-
Side lid LH /
t o : J : N.
to:J
~
"-J
m (kg-m. ft-Ib)
MRS119A
RS-14
SUPPLEMENTAL
RESTRAINT SYSTEM (SRS)
Removal -
Air Bag Module and Spiral Cable
CAUTION: • B ef or e s er vi ci ng SRS, t ur n t h e i gn it io n s wi tc h o ff , d is co nnect both battery cables and wait for at least 10 minutes. • A lw ay s w or k f ro m t he s id e o f ai r b ag m od ul e. 1. Remove lower lid from steering wheel, and disconnect air bag module connector.
SBF811E
2.
Remove side lids. Using the TAMPER RESISTANT TORX (Size T50), remove left and right special bolts. Air bag module can then be removed.
SBF812E
CAUTION: • A lw ay s p lac e ai r b ag m od ul e w it h p ad s id e f ac in g u pw ar d. • Do n ot at tem pt t o d is as sem bl e ai r b ag m od ul e. • Th e sp ec ial b ol ts a re c o at ed w it h b on di ng ag en t. Do n ot u se old bolts after removal; replace with new ones.
MRS120A
• •
Air bag module
•
Replace air bag module if it has been dropped an impact.
or sustained
Do n ot ex po se t he ai r b ag m od ul e t o t em per at ur es ex ceed in g 90°C (194°F). Do not allow oil, grease or water to come in contact with the air bag module.
SBF814E
3. 4. 5.
SBF239F
Set steering wheel in the neutral position. Disconnect horn connector and remove nuts. Using steering wheel puller, remove steering wheel. Be careful not to over-tighten puller bolt on steering wheel. CAUTION: • Do n ot tap o r b um p t h e st eer in g w heel . 6. Remove steering column cover. 7. Disconnect connectors and remove the four screws. The spiral cable can then be removed. CAUTION: • Do n ot at tem pt t o d is as sem bl e s pi ral c ab le. • Do n ot ap pl y l ub ri can t t o t he s pi ral c ab le.
RS-15
•
•
SUPPLEMENTAL
RESTRAINT SYSTEM (SRS)
Removal - Front Passenger Air Bag Module (Dual Air Bag System) CAUTION: • Before servicing SRS, turn the ignition switch off, disconnect both battery cables and wait for at least 10 minutes. • Always work from the side of or under air bag module. 1. Open the glove box lid. 2. Disconnect inflator connector from body harness air bag connector. 3. Remove glove box assembly. Refer to "INSTRUMENT PANEL" in BT section for details.
4.
•
Remove the nuts and special bolts using the TAMPER RESISTANT TORX (Size T50j from front passenger air bag module. Take out the air bag module from the instrument panel. The air bag module is heavy and should be supported using both hands during removal.
MRS122A
CAUTION: • Always place air bag module with pad side facing upward. • Do not attempt to disassemble air bag module. • The special bolts are coated with bonding agent. Do not use old bolts after removal; replace with new coated bolts. • Do not insert foreign objects (screwdriver, etc.) into air bag module connector. • Do not use a circuit tester to check the air bag module harness connector.
• • Air bag module
•
Replace air bag module if it has been dropped or sustained an impact. Do not expose the air bag module to temperatures exceeding 90°C (194°F). Do not allow oil, grease or water to come in contact with the air bag module.
SBF814E
RS-16
SUPPLEMENTAL
RESTRAINT SYSTEM (SRS)
Installation -
Dual air bag system
Air Bag Module and Spiral Cable
1. Set the front wheels in the straight-ahead position. 2. Make sure that the spiral cable is in the neutral position. The neutral position is detected by turning left about 2.5 revolutions from the right end position. Align the two marks (~ ). CAUTION: • Th e s pi ral c ab le m ay s nap d ue t o st eer in g o per at io n i f t he cable is installed in an improper position. Al so , wi th th e st eeri ng li nk age di scon nec ted , th e cab le may snap by turning the steering wheel beyond the limited number of turns. (The spiral cable can be turned up to 2.5 turns from the neutral position to both the right and left.) • A lw ay s w or k f r om t he s i de o f ai r b ag m od ul e. 3. Connect spiral cable cOnnector and tighten with screws. Install steering column cover.
MRS074AA
Single air bag system
SRS037-A
4.
Dual air bag system
5. 6.
Install steering wheel setting spiral cable pin guides, and pull spiral cable through. Connect horn connector and engage spiral cable with pawls in steering wheel. Tighten nut. ~: 29 - 39 N'm (3.0 - 4.0 kg-m, 22 - 29 ft-Ib)
MRS075AA
RS-17
SUPPLEMENTAL
RESTRAINT SYSTEM (SRS)
Installation (Cont'd)
Air Bag Module and Spiral Cable
MRS046AA
--------~
7. 8. 9. 10.
G~ \ \ \)
\\\?\\ ..~l~~
Special bolt ~
cc:J
~
15 - 25 N.m
"'(
\
\
~
(1.5 - 2.5 kg-m, 11 - 18 ft-Ibl
SBF812EA
Position air bag module and tighten with new special bolts. Connect air bag module connector. Install all lids. Conduct self-diagnosis to ensure entire SRS operates properly. (Use CONSULT or warning lamp check.) Before performing self-diagnosis, connect both battery cables. 11. Turn steering wheel to the left end and then to the right end fully to make sure that spiral cable is set in the neutral position. If air bag warning lamp blinks or stays ON (at the user mode), it shows the spiral cable may be snapped due to its improper position. Perform self-diagnosis again (use CONSULT or warning lamp). If a malfunction is detected, replace the spiral cable with a new one.
Installation - Front Passenger Air Bag Module (Dual Air Bag System) • A lw ay s w or k f r om t he s id e o f ai r b ag m od ul e. 1. Install front passenger air bag module on steering member. • Ensure harness is not caught between rear of air bag module and steering member. 2. Install glove box'assembly. (Glove box lid is open.)
3. 4.
Connect air bag module connector to body harness connector. Close the glove box lid.
RS-18
SUPPLEMENTAL
RESTRAINT SYSTEM (SRS)
Disposal of Air Bag Module and Seat Belt Pre-tensioner •
• • • • • • •
Before disposing of air bag module and seat belt pre-tensioner, or vehicles equipped with such systems, deploy the systems. If such systems have already been deployed due to an accident, dispose of as indicated in "DISPOSING OF AIR BAG MODULE AND SEAT BELT PRE-TENSIONER" (RS24). When deploying the air bag module, always use the Special Service Tool; Deployment tool KV99106400. When deploying the air bag module and seat belt pre-tensioner, stand at least 5 m (16 ft) away from the deployment component. Due to heat, leave air bag module unattended for more than 30 minutes after deployment. Also leave seat belt pre-tensioner unattended for more than 10 minutes after deployment. Be sure to wear gloves when handling a deployed air bag module and seat belt pre-tensioner. Never apply water to a deployed air bag module. Wash your hands clean after finishing- work. Do not dispose of the air bag module and seat belt pre-tensioner un-deployed.
CHECKING DEPLOYMENT Connecting to battery
TOOL
•
Place the vehicle outdoors with an open space of at least 6 m (20 ft) on all sides. • Use a voltmeter to make sure the vehicle battery is fully charged. CAUTION: The battery must show voltage of 9.6V or more. Remove the battery from the vehicle and place it on dry wood Deployment
tool
(KV99106400j
SRS005-B
blocks approximately 5 m (16 ft) away from the vehicle. Wait 10 to 12 minutes after the vehicle battery is disconnected before proceeding. • Connect red clip of deployment tool to battery positive terminal and black clip to negative terminal. Make sure the polarity is correct. The right side lamp in the tool, m ar ked " d ep lo ym en t t oo l p ow er " , s ho ul d g lo w w it h a g reen light. If the right side lamp glows red, reverse the connections to the battery. •
Deployment
tool check
Press the deployment tool switch to the "ON" position. The left side lamp in the tool, marked "air bag connector voltage" should illuminate. If it does not illuminate, replace the tool.
Ai r bag dep lo ym ent connected)
to ol lam p il lu mi nat io n
Left side lamp, green' Switch
"AIR BAG CONNEC-
operation
SBF266H
TOR VOLTAGE" OFF
ON ,. If this lamp glows Reverse
RS-19
RighI side lamp, green' "DEPLOYMENT
TOOL
POWER"
OFF
ON
ON
ON
red, the 1001is connecled
the connections
ch art (Bat ter y
to the battery
and make sure the lamp glows
incorrectly. green.
SUPPLEMENTAL
RESTRAINT SYSTEM (SRS)
Disposal of Air Bag Module and Seat Belt Pre-tensioner (Cont'd) •.5~335)
15 (0.59)
dl"~
15 (0.59)
FOR AIR BAG MODULE
Unless the vehicle is being scrapped, deploying the air bag in the vehicle is not recommended. This may cause damage to the vehicle interior. Anchor air bag module in a vise secured to a firm foundation during deployment.
°170 ('.89~
"'-
DEPLOYMENT PROCEDURES (OUTSIDE OF VEHICLE)
Passenger air bag bracket (KV99105300)
mm (in)
SRS141
Deployment vehicle)
of driver's
air bag module (outside of
1.
Make an 8.5 mm (0.335 in) diameter hole in passenger air bag bracket (SST: KV99105300) at the position shown in figure at left. 2. Using wire, secure air bag module to passenger air bag bracket (SST: KV99105300) at two places. CAUTION: Use wire of al least 1 mm (0.04 in) diameter. 3. Firmly secure passenger air bag bracket (SST: KV99105300) with air bag module attached, in a vise.
Passenger air bag bracket (KV991 05300)
4.
Connect deployment ule connector.
tool (SST: KV99106400) to air bag mod-
Passenger air bag bracket (KV99105300)
5.
Connect red clip of deployment tool to battery positive terminal and black clip to negative terminal. 6. The lamp on the right side of the tool, marked "deployment tool power", should glow green, not red. 7. Press the button on the deployment tool. The left side lamp on the tool, marked "air bag connector voltage", will illuminate and the air bag module will deploy. CAUTION: Wh en d ep lo yi ng t he ai r b ag m od ul e, s tan d at l e as t 5 m ( 16 ft) away from the air bag module.
Air bag module
Deployment tool (KV99106400)
SRS020-A
15 (0.59)
15 (0.59)
Deployment vehicle) 1.
° '7 0 (.... ~
of passenger
Make an 8.5 mm (0.335 in) diameter hole in passenger air bag bracket (SST: KV99105300) at the position shown in figure at left.
Passenger air bag bracket (KV99105300)
mm (in)
air bag module (outside of
SRS141
RS-20
SUPPLEMENTAL
RESTRAINT SYSTEM (SRS)
Disposal of Air Bag Module and Seat Belt Pre-tensioner (Cont'd) 2.
Firmly secure passenger in a vise.
air bag bracket (SST: KV99105300)
SRS145
3.
Match the two holes in passenger air bag bracket (held in vise) and passenger air bag module and fix them with two bolts [M8 x 25 - 30 mm (0.98 - 1.18 in)]. CAUTION: If a gap exists between passenger air bag module and passeng er ai r b ag b rac ket , u se a p i ec e o f wo od i ns er ted i n th e g ap t o stabilize the air bag module.
4.
Connect deployment tool adapter (SST: KV991065S0) to deployment tool (SST: KV99106400) connector and connector on either side of air bag module. 5. Connect red clip of deployment tool to battery positive terminal and black clip to negative terminal. 6. The lamp on the right side of the tool, marked "deployment tool power", should glow green, not red. 7. Press the button on the deployment tool. The left side lamp on the tool, marked "air bag connector voltage", will illuminate and the air bag module will deploy. CAUTION:
Wh wn d ep lo yi ng t he a i r b ag m od ul e, s tan d at l eas t 5 m (16 ft) away from the air bag module. 8. Activate the other inflator. CAUTION: Al way s act ivate on e in fl ato r at a ti me.
Air bag module
Deployment
tool
(KV991 06400)
SRS020-A!
RS-21
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) Disposal of Air Bag Module and Seat Belt Pre-tensioner (Cont'd) DEPLOYMENT IN VEHICLE
SBF240F
OF AIR BAG MODULE WHILE MOUNTED
When disposing of a vehicle, deploy air bag module while it is mounted in vehicle. CAUTION: When deploying air bag module, ensure vehicle is empty. 1. Disconnect both battery cables and wait 10 minutes. 2. Disconnect air bag module connector. 3. Connect deployment tool (SST: KV99106400) to air bag module. 4. Connect red clip of deployment tool to battery positive terminal and black clip to negative terminal. 5. The lamp on the right side of the tool, marked "deployment tool power", should glow green, not red. 6. Press the button on the deployment tool. The left side lamp on the tool, marked "air bag connector voltage", will illuminate and the air bag module will deploy. CAUTION: Acti ve on ly on e pas sen ger air bag mo du le in fl ato r at a ti me.
Deployment tool (KV99106400)
SRS006-B
DEPLOYMENT OF SEAT BELT PRE- TENSIONER (OUTSIDE OF VEHICLE) 1.
Remove seat belt unit with pre-tensioner. Refer to RS-3 fordetails. CAUTION: Before removing seat belt pre-tensioner assembly, be sure to lock safety lever to make seat belt pre-tensioner inoperative. 2. Cut seat belt off at upper part of pre-tensioner.
Safety lever lock
SRS078
3.
Tie a strong string at least 6 m (20 ft) long to pre-tensioner body, with pre-tensioner cylinder facing down.
4.
Move lever in direction of arrow to unlock operation protection system. Pre-tensioner assembly is now ready for operation. A ft er u nl oc ki ng o per at io n p ro tec ti on s ys tem , b e c ar ef ul n ot to bump pre-tensioner assembly.
SRS079
•
SRS080
RS-22
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) Disposal of Air Bag Module and Seat Belt Pre-tensioner (Cont'd) 5.
•
Place five used tires (four without rims and one with) on a concrete floor, as shown in the figure, so that they encircle pre-tensioner. Route end of the string through the center of the rim. Mak e s ur e p re-t en si on er i s aw ay f ro m an y o f t he ti res t o prevent any shocks being applied.
SRS081
6. 5
m
(16 ft)
•
From a distance of more than 5 m (16 ft) away from tires, pull string until pre-tensioner is approximately 400 mm (15.75 in) above the ground. B ef or e p ul li ng s tr in g, o nc e a gai n f or s af et y, c hec k t h at t h e area around the tires is clear.
40 em (15.75 in)
SRS082
7.
SRS083
Release string to allow the pre-tensioner to hit the ground. Pre-tensioner will now deploy. • Th e p r e-t en si on er c yl in der i s t oo h o t to t ou ch i mm ed iat el y after deployment; therefore, wait at least 10 minutes until it cools down. • A lt ho ug h t he gas wh ic h i s d is ch ar ged d ur in g d ep lo ym en t i s harmless, avoid inhaling as it can cause some discomfort. 8. Before disposing of pre-tensioner, re-check that it has properly deployed. If it has not, repeat steps 3 through 7 above. • A pr e-t en si on er d ep lo yi ng c an b e am pl y h ear d ev en at a distance of 5 m (16 ft). • A ft er p re-t en si on er h as d ep lo yed , t he r u bb er c ap i s s ep arated from cylinder head by gas generated during deployment.
•
Move screwdriver or similar ferrous metal close to the magnet built into the rear of sensor case. If it is attracted, pretensioner has not deployed yet; if it is not attracted, pretensioner has already been deployed. CAUTION: Be extremely careful not to apply any impacts to the pre-tens io ner u nt il y ou ar e ab so lu tel y s ur e p re-t en si on er h as b een deployed.
RS-23
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) Disposal of Air Bag Module and Seat Belt Pre-tensioner (Cont'd) DISPOSING OF AIR BAG MODULE AND SEAT BELT PRE- TENSIONER Deployed air bag module and seat belt pre-tensioner are very hot. Before disposing of air bag module and seat belt pretensioner, wait at least 30 minutes. Seal them in a plastic bag before disposal.
CAUTION: • SBF276H
• •
• • •
Never apply water to a deployed air bag module and seat belt pre-tensioner. Be sure to wear gloves when handling a deployed air bag module and seat belt pre-tensioner. No poisonous gas is produced upon air bag module deployment. However, be careful not to inhale gas since it irritates throat and can cause choking. Do not attempt to disassemble air bag module and seat belt pre-tensioner. Air bag module and seat belt pre-tensioner can not be re-used. Wash your hands clean after finishing work.
RS-24
TROUBLE DIAGNOSES -
Supplemental
Restraint System (SRS)
How to Perform Trouble Diagnoses for Quick and Accurate Repair A good understanding of the malfunction conditions can make troubleshooting faster and more accurate. In general, each customer feels differently about a problem. It is important to fully understand the symptoms or conditions for a customer complaint.
INFORMATION
FROM CUSTOMER
WHAT
Vehicle model
WHEN
Date, Frequencies
WHERE
Road conditions
HOW
Operating conditions, Symptoms
PRELIMINARY
CHECK
Check that the following parts are in good" order. • Battery [Refer to MA section ("GENERAL MAINTENANCE").] • Fuse [Refer to EL section ("Fuse", "POWER SUPPLY ROUTING").] • System component-to-harness connections
DIAGNOSIS
FUNCTION
The SRS self-diagnosis
results can be read by using "AIR BAG" warning
lamp and/or CONSULT.
USING WARNING LAMP USING CONSULT User mode
Diagnosis mode
Dual air bag system
X
X
Single air bag system
X
X
Seat belt pre-tensioner
The reading of these results is accomplished using one of two modes - "User mode" and "Diagnosis mode". The User mode is exclusively prepared for the customer (driver). This mode warns the driver of a system malfunction through the operation of the "AIR BAG" warning lamp. The Diagnosis mode allows the technician to locate and inspect the malfunctioning part. The mode applications for the "AIR BAG" warning lamp and CONSULT are as follows:
"AIR BAG" warning lamp
User mode
Diagnosis mode
X
X X
CONSULT
Display type
ON-OFF operation
Monitoring
Seat belt pre-tensioner can not be diagnosed by using warning lamp and/or CONSULT. When seat belt pre-tensioner is requires servicing, visually check seat belt pre-tensioner assembly. If damaged, replace with a new one.
DIAGNOSIS •
MODE FOR CONSULT (For Dual Air Bag System)
SELF-DIAG RESULTS A current Self-diagnosis result (also indicated by the number of warning lamp flashes in the Diagnosis mode) is displayed on the CONSULT screen in real time. This refers to a malfunctioning part requiring repairs.
RS-25
TROUBLE DIAGNOSES - Supplemental Restraint System (SRS) How to Perform Trouble Diagnoses for Quick and Accurate Repair (Cont'd) •
E CU D IS CR IM IN AT ED
ECU
•
No.•
No.
09
SRS102
ECU DISCRIMINATEDNO. The diagnosis sensor unit for each vehicle model is assigned with its own, individual classification number. This number will be displayed on the CONSULT screen, as shown at left. When replacing the diagnosis sensor unit, refer to the part number for the compatibility. After installation, replacement with a correct unit can be checked by confirming this classification number on the CONSULT screen. For NISSAN model N15, the diagnosis cation number assigned is 09.
RS-26
sensor
unit classifi-
TROUBLE DIAGNOSES - Supplemental Restraint System (SRS) How to Perform Trouble Diagnoses for Quick and Accurate Repair (Cont'd) CAUTION: • Do n o t u s e a c ir cu it t es ter t o ch ec k SRS h ar nes s c on nec to rs u nl es s i ns tr uc ted t o i n t hi s Ser vi ce Manual. For dual air bag system, SRS wiring harnesses are covered with yellow insulation either ju st bef or e th e har nes s co nn ect or s or fo r co mp let e har nes s, fo r easy id ent ific ati on . • Do not attempt to repair, splice or modify the SRS wiring harness. If the harness is damaged, replace i t wi th a n ew o ne. • K eep g r ou nd p or ti on c lean .
WORK FLOW REFERENCE ITEM
ACTION ITEM
Check in.
Listen to customer complaints
Perform preliminary
and requests.
-+ - 1
check.
Perform self-diagnosis
using "AIR BAG" warning
lamp. -
User
mode
Single air bag system
Dual air bag
Single air bag
system
system
Inspect malfunctioning
part. -
Diagnosis
Perform self-diagnosis
using CONSULT.
-+ -
Preliminary
check (RS-25)
DIAGNOSTIC PROCEDURE 1 or 7 (RS-32, 43)
• DIAGNOSTIC PROCEDURE
mode
2: Using CONSULT (RS-33)
Dual air bag system
• DIAGNOSTIC PROCEDURE 3: Using "AIR BAG" warn-
OR
Perform self-diagnosis
using "AIR BAG" warning
lamp.
ing lamp (RS-34)
Repair/Replace
NG
Final check -
Diagnosis mode and User mode
• DIAGNOSTIC PROCEDURE 2: Using CONSULT (RS-33)
OK
• DIAGNOSTIC PROCEDURE 3: Using "AIR BAG" warning lamp (RS-34)
Check out
DIAGNOSTIC PROCEDURE 1 or 7 (RS-32, 43)
RS-27
TROUBLE DIAGNOSES - Supplemental Restraint System (SRS) Dual Air Bag System Schematic DUAL AIR BAG SYSTEM
DATA LI NK CONNECTOR FOR CONSULT
FUSE
FUSE
o
COMBI NA nON METER ( AI R BAG WARNI NG LAMP)
19
3
2120
15
5
4
2
6
AI R BAG DI AGNOSI S SENSOR UNI T 17
SPI RAL CABLE
-
S QUI B
AI R BAG MODULE DRI VER' S S I DE
S QUI B
AI R BAG MODULE PASSENGER S I DE
DOOR SWI TCH DRI VER' S SI DE HRS002
RS-28
TROUBLE DIAGNOSES - Supplemental Restraint System (SRS) Dual Air Bag System Wiring Diagram -
SRS -
DUAL AIR BAG SYSTEM
RS- SRS- 02
I GNI TI ON SWI TCH ON or START
10A
10A
W
1221
~
Ref er
t o EL- POWER.
(M15)
(ll)"
*~ BRI W ~
BRI W - . BRI W ~ 111511 WI L
COMBI NATI ON METER ( AI R BAG WARNI NG LAMP)
I GN
AI R BAG DI AGNOSI S SENSOR UNI T ill)
(M30)
~
1 1 * .2 1
FUSE BLOCK ( J I B)
GNO
BI R
~
L HO mode I s
B
~(ll)
C:J~
~
B
rn
I ~g~~~CTOR- 3 ~:
~~:
I ,..O ~ O -O -ID -
I< :
B
. . . . .
~ ~-
-
-
-
-
-
-
-
B
~ -
-
-
-
-
-
-
-
-
B
(M60) -
-
~P
To AS-SAS-D.
B
-
-
-
-
-
-
-
-
-
~ -
-
-
-
-
-
~
L
~(M59):
:}
L ..t t .J
1
BI R
I~
:>
R
B
:
Re f e r t o l a s t p ag e ( Fol dout page) .
~
em
(IT)
y
y
IT III:illJ IIIII ~ :
RS-29
TROUBLE DIAGNOSES - Supplemental Restraint System (SRS) Dual Air Bag System Wiring Diagram -
SRS -
{Co nt' d) RS-SRS-03
AI R BAG DI AGNOSI S SENSOR
DOOR SW ~ R
SQ+
SQ-
(DR)
(DR)
l!:jJJ
~
W
~@
SQ-
SQ+
( PASS)
( PASS)
~
L
UNIT
em
~ G
OR
ICiJI~ R
I
t
BOX NO. 2 ( . . J OI NT CONNECTORS)
R
I~I ~~: ; R
~
t
R I"'m:\
~~
I~IC@ R
< ;> R
0 • R
SPI RAL CABLE
m DOOR SWI T CH DRI VER' S SI DE
OPEN
AI R BAG MODULE DRI VER' S SI DE ( SQUI B)
@ )
"= iJ B
AI R BAG MODULE PASSENGER SI DE ( SQUI B)
I
f . B
~ (B11)
B
~
@
em y
~~@ 5 6lil~1112
y
rfrnl(]ID l] f
W
Re f e r t o l a s t p ag e ( Fol dout page) .
~cm
@
B
~
*6
t!!Iy
~
y
A ,.@
~y
@ W
HRS005
RS-30
TROUBLE DIAGNOSES - Supplemental Restraint System (SRS) Dual Air Bag System Wi ri ng Di ag ram -
SRS -
(Co nt 'd )
RS- SRS- 04 I GNI TI ON SWI T CH ON or START F USE 7 .5A BLOCK
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SSS RX
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HRS006
RS-31
TROUBLE DIAGNOSES - Supplemental Restraint System (SRS) Dual Air Bag System Self-diagnosis DIAGNOSTIC
PROCEDURE
Checking SRS operation User mode
1
(@ withou t
by using"
AIR BAG"
CONSULT)
warning
lamp -
1. After turning ignition switch from "OFF" to "ON", "AIR BAG" warning lamp operates. 2. Compare "AIR BAG" warning lamp operation to the chart below.
"AIR BAG" warning lamp operation -
User mode -
SRS condition No malfunction is detected. No further action is necessary.
IGN ON
i
ON OFF
J
Reference item
I
~~----------------
MRS095A
The system has problem and needs to be repaired as indicated.
Go to DIAGNOSTIC PROCEDURE2, or 3 (RS-33 or 34).
Air bag is deployed.
Go to COLLISION DIAGNOSIS (RS-40).
Fuse, diagnosis sensor unit or harness is malfunctioning and needs to be repaired.
Go to DIAGNOSTIC PROCEDURE4 (RS-38).
ON
OFF
MRS096A
lGN ON
ON OFF
•r J -
MRS097A
Diagnosis sensor unit or Go to DIAGNOSTIC PRO"AIR BAG" warning CEDURE 5 (RS-38). lamp circuit is shorted or open and needs to be repaired.
IGN ON
ON OFF
--------------------
MRS098A
NOTE: If "AIR BAG" warning lamp operates differently from the operat io ns s ho wn ab ov e, r ef er t o " A IR B AG" w ar ni ng l am p o per at io n - Di ag no si s m od e -, DIAGNOSTIC PROCEDURE3, RS-34.
Then repair as necessary.
RS-32
TROUBLE DIAGNOSES - Supplemental Restraint System (SRS) Dual Air Bag System Self-diagnosis DIAGNOSTIC
(Cont'd)
PROCEDURE
2
( 0 0
with CONSULT)
Inspecting SRS malfunctioning parts by u si ng Diagnosis mode 1. Turn ignition switch "OFF". 2. Connect "CONSULT" to Data link connector.
CONSUL T
-
MRS124A
NISSAN
3. 4.
Turn ignition switch "ON". Touch "START".
5.
Touch "AIRBAG".
6.
Touch "SELF-DIAG RESULTS".
7.
Diagnostic codes are displayed on "SELF-DIAG RESULTS" .
CONSULT
START
I
SUB MODE
SRS046
I~
I
01
SELECT SYSTEM
ENGINE
1
AIRB AG
1 1 1
'
I
I
I
1
MRS125A
I~
SELECT SELF-DIAG
I
DIAG MODE
01
RESULTS
ECU DISCRIMINATED
I
NO.
'= = = = = = 1
-
1======== 1
-
•
SELF-DIAG
RESULTS.
SRS043
0
FAILURE DETECTED CONTROL
I
UNIT
ERASE
II
PRINT
I
SRS064
RS-33
TROUBLE DIAGNOSES - Supplemental Restraint System (SRS) Dual Air Bag System Self-diagnosis •
SELF-DIAG
FAILURE •
RESULTS.
0
DETECTED
NO SELF DIAGNOSTIC
(Cont'd)
If no self-diagnostic failure is detected on "SELF-DIAG RESULTS", no further action is necessary. Touch "BACK" key of CONSULT until SELECT SYSTEM MODE appears, then turn off CONSULT.
FAILURE INDICATED. FURTHER TESTING MAY BE REQUIRED.
ERA SE
"
* *
PR IN T
I
SRS044
8. Touch "PRINT". 9. Compare diagnostic codes to the CONSULT DIAGNOSTIC CODE CHART, page RS-36. 10. Touch "BACK" key of CONSULT until SELECT SYSTEM MODE appears, then turn off CONSULT. 11. Turn ignition switch "OFF", then disconnect CONSULT and both battery cables. 12. Repair the system as outlined by the "Repair order" in CONSULT DIAGNOSTIC CODE CHART, that corresponds to the problem code. For replacement procedure of component parts, refer to RS-12. 13. After repairing the system, conduct DIAGNOSTIC PROCEDURE 2 again. If repair is completed, turn ignition switch "OFF", and disconnect CONSULT.Then go to DIAGNOSTICPROCEDURE1, page RS-32.
DIAGNOSTIC
Door switch
PROCEDURE
3
( 0 0
withou t CONSULT)
Inspecting SRS malfunctioning parts by using "AIR BAG" warning lamp - Diagnosis mode 1. Open driver's door. 2. Turn ignition switch from "OFF" to "ON". 3. Press driver's door switch at least 5 times within 7 seconds after turning ignition switch "ON". SRS is now in Diagnosis mode. 4. "AIR BAG" warning lamp operates in diagnosis mode as follows: NOTE: If SRS does not enter diagnostic mode, go to DIAGNOSTIC PROCEDURE 6, page RS-39.
RS-34
TROUBLE DIAGNOSES - Supplemental Restraint System (SRS) Dual Air Bag System Self-diagnosis (Cont'd) No.
"AIR BAG" warning lamp operation -
Diagnosis mode -
@ through @ are repeated.
No malfunction is detected. No further action is necessary.
@ through @ are repeated.
The system has problem and needs to be repaired.
IGN ON ON
SRS condition
t
OFF
MRS100A
NOTE:
IGN ON ON 2
OFF
I 7 sec.
@)
@ -
@ (c)
@ @ -
3sec. 2 sec.
@ -
2 sec. Varies with malfunctioning part
MRS099A
5.
6. 7.
8.
9.
Interval I Start signal (Start signal identifies display modes) Interval II Indicates malfunctioning part (0.5 sec. ON and 0.5 sec. OFF is counted as one flash.)
Malfunctioning part is indicated by the number of flashes (part @). Compare the number of flashes to WARNING LAMP FLASH CODE CHART, page RS-37, and locate malfunctioning part. Turn ignition switch "OFF", and disconnect both battery cables. Repair the system as o utlined by the "Repair order" in WARNING LAMP FLASH CODE CHART that corresponds to the flash code. For replacement procedure of component parts, refer to RS-12. After repairing the system, conduct DIAGNOSTIC PROCEDURE 3 again. If repair is completed, turn ignition switch "OFF" and then turn "ON". Press driver's door switch at least 5 times within 7 seconds after turning ignition switch "ON". The system is reset from Diagnostic mode to User mode. Next, go to DIAGNOSTIC PROCEDURE 1, page RS-32.
RS-35
•
TROUBLE DIAGNOSES - Supplemental Restraint System (SRS) Dual Air Bag System Self-diagnosis (Cont'd) CONSULT DIAGNOSTIC Diagnostic item
CODE CHART
NO SELF DIAGNOSTIC FAILURE INDICATED.
• No malfunction is detected.
AIRBAG MODULE [OPEN)
• Driver's air bag module circuit is open. (including the spiral cable)
AIRBAG MODULE [VB-SHORT]
• Driver's air bag module circuit is shorted to some power supply circuit. (including the spiral cable)
AIRBAG MODULE [GND-SHORT]
• Driver's air bag module circuit is shorted to ground. (including the spiral cable)
AIRBAG MODULE [SHORT]
• Driver's air bag module circuits are shorted to each other.
ASSIST A/B MODULE [OPEN]
• Front passenger air bag module circuit is open.
ASSIST A/B MODULE [VB-SHORT]
• Front passenger air bag module circuit is shorted to some power supply circuit.
ASSIST A/B MODULE [GND-SHORT)
• Front passenger air bag module circuit is shorted to ground.
ASSIST A/B MODULE [SHORT]
• Front passenger air bag module circuits are shorted to each other.
CONTROL UNIT
• Diagnosis sensor unit is out of order.
*
Repair order Recheck SRS at each replacement.
Explanation
1. Visually
check the wiring harness connections. 2. Replace the spiral cable. 3. Replace driver's air bag module. (Before disposing of it, it must be deployed.) 4. Replace the diagnosis sensor unit. 5. Replace the air bag harness.
1. Visually
check the wiring harness connections. 2. Replace front passenger air bag module. (Before disposing of it, it must be deployed.) 3. Replace the diagnosis sensor unit. 4. Replace the air bag harness.
Visually check the wiring harness connections. 2. Replace the diagnosis sensor unit. 3. Replace the air bag harness. 4. Replace the main harness. 1.
Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is eliminated using the air bag warning lamp (in user mode) or CONSULT each time repair is finished. If malfunction is still observed, proceed to the next step. When malfunction is eliminated, further repair work is not required.
RS-36
TROUBLE DIAGNOSES - Supplemental Restraint System (SRS) Dual Air Bag System Self-diagnosis (Co nt' d) WARNING LAMP FLASH CODE CHART Warning
Flash code @
lamp
(# of flashes)
Repair order
Explanation
Recheck SRS at each replacement.
0
No malfunction is detected.
2
The driver's air bag module circuit
1. Visually check the wiring harness connections.
is out of order.
2. Replace the spiral cable.
-
3. Replace the driver's air bag module. D.
(Before disposing of it, it must be deployed.)
E
(Ij
4. Replace the diagnosis sensor unit.
en
5. Replace the air bag harness.
c c
ca
~
7
The diagnosis sensor unit is out of
2. Replace the diagnosis sensor unit.
order.
C)
«
3. Replace the air bag harness.
OJ
4. Replace the main harness .
.
c r:
;:(
1. Visually check the wiring harness connections.
8
The front passenger air bag module
1. Visually check the wiring harness connections.
circuit is out of order.
2. Replace the front passenger air bag module. (Before disposing of it, it must be deployed.) 3. Replace the diagnosis sensor unit. 4. Replace the air bag harness.
*
Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is eliminaled using the air bag warning lamp (in user mode) or CONSULT each time repair is finished. If malfunction is still observed, proceed to the next step. When malfunction is eliminated, further repair work is nol required.
RS-37
TROUBLE DIAGNOSES - Supplemental Restraint System (SRS) Dual Air Bag System Trouble Diagnoses for Air Bag Warning Lamp DIAGNOSTIC
{f
SYMPTOM:
UP
PROCEDURE
"AIR BAG" warning
lamp does not turn off.
Is air bag module deployed?
•
T
SIDE
4
No
EE3J
A IR B A G
Replace air bag module and diagnosis sensor unit. Refer to COLLISION DIAGNOSIS, (RS-40).
Is SRS "Air Bag" fuse (10A) OK?
Replace fuse.
Yes
I~
SELECTSYSTEM
I ENGINE
01 I
A IRB A G
00
No
Connect CONSULT and touch
- - - - ....
"START".
Replace diagnosis sensor unit.
• Is "AIRBAG" displayed on CONSULT? ~Yes Is harness connection between warning lamp and diagnosis sensor unit OK?
No ~
Connect warning lamp and diagnosis sensor unit properly. If warning lamp
Yes
still does not go off,
MRS125A
replace harness. [RePlace diagnosis sensor unit.
DIAGNOSTIC
{f
+
SYMPTOM:
PROCEDURE
"AIR BAG"
5
warning
Is warning lamp fuse OK?
M E TE R
UP
lamp does not turn on. No
Replace fuse.
Yes
SIDE
EE3J MRS127A
Is warning lamp LED OK? Yes
Replace warning lamp LED.
Is harness connection between warning
Connect warning lamp
lamp and diagnosis sensor unit OK?
harness properly. If warn-
Yes
ing lamp still does not come on, replace harness.
I Replace diagnosis
RS-38
sensor unit.
m
TROUBLE DIAGNOSES - Supplemental Restraint System (SRS) Dual Air Bag System Trouble Diagnoses for Air Bag Warning Lamp (Cont'd) DIAGNOSTIC SYMPTOM:
PROCEDURE
6
SRS does not enter
Diagnostic
mode.
m Is "AIR BAG" warning lamp blinking?
No
SRS is in good order. Setting the CONSULT to the
Yes
Diagnosis mode is impossible. No further action is necessary.
MRS115A
Disconnect both battery cables and
No
Charge battery.
check battery voltage using circuit te.ster. • Is battery voltage more than 9V?
Remove driver's door switch and check
No
continuity between driver's door switch
Replace driver's door switch.
connector terminals G) and @ under SRS058
the following conditions. Condition
Continuity
Door switch is depressed (Door is closed). Door switch is released (Door is open).
YES
NO
00 Check harness continuity between drivMRS104
er's door switch connector terminal @ and body ground. • Does continuity exist? Ye s
Replace diagnosis sensor unit.
I Go 10 DIAGNOSTIC SRS060
RS-39
PROCEDURE 3.
No
Replace or repair harness.
COLLISION DIAGNOSIS To repair the SRS, perform the following When SRS is activated
Dual Air Bag System
steps.
in a collision:
C D Replace the diagnosis sensor unit. @ Remove the air bag modules. @ Check the SRS components using the table shown below: • Replace any SRS components showing visible @ Conduct self-diagnosis. Refer to "Self-diagnosis" SRS is operating properly. < I D Install new air bag modules. @ Conduct self-diagnosis again. When SRS is not activated
signs of damage (dents, cracks, deformation). for details (RS-32). Ensure the remainder of the
in a collision:
C D Check the SRS components
using the table shown below: • Replace any SRS components showing visible signs of damage (dents, cracks, deformation). @ Conduct self-diagnosis using CONSULT and "'AIR BAG" warning lamp. Refer to "Self-diagnosis" details (RS-32). Ensure entire SRS operates properly.
for
SRS inspection Part
SRS is activated
SRS is NOT activated
Air bag module (driver and passenger side)
REPLACE Install with new bolts.
1. Remove air bag module. Check harness cover and connectors for damage, terminals for deformities, and harness for binding. 2-1. Install driver air bag module into the steering wheel to check fit and alignment with the wheel. 2-2. Install passenger air bag module into the instrument panel to check fit with the instrument panel. 3. No damage found, reinstall with new bolts. 4. If damaged-REPLACE. Air bag must be deployed before discarding.
Instrument panel
REPLACE Install with new bolts.
1. Check instrument panel for bending, deformities, or cracks. 2. If no damage is found, reinstall with new bolts. 3. If damaged-REPLACE.
Diagnosis sensor unit
REPLACE Install with new bolts.
1. Check case and bracket for dents, cracks or deformities. 2. Check connectors for damage, and terminals for deformities. 3. If no damage is found, reinstall with new bolts. 4. If damaged-REPLACE.
Steering wheel
1. Visually check steering wheel for deformities. 2. Check harness (built into steering wheel) and connectors for damage, and terminals for deformities. 3. Install air bag module to check fit or alignment with steering wheel. 4. Check steering wheel for excessive free play. 5. If no damage is found, reinstall with new bolts. 6. If damaged-REPLACE.
Spiral cable
1. Visually check lock (engagement) pins and combination switch for damage. 2. Check connectors, flat cable and protective tape for damage. 3. Check steering wheel for noise, binding or heavy operation. 4. If no damage is found, reinstall with new bolts. 5. If damaged-REPLACE.
Harness and Connectors
1. Check connectors for poor connection, damage, and terminals for deformities. 2. Check harness for binding, chafing, cuts, or deformities. 3. If no damage is found, reinstall the harness and connectors. 4. Damaged-REPLACE damaged section of harness. Do not attempt to repair, splice or modify any SRS harness.
RS-40
TROUBLE DIAGNOSES - Supplemental Restraint System (SRS) Single Air Bag System Schematic SINGLE AIR BAG SYSTEM
FUSE
COMBI NA nON METER ( AI R BAG WARNI NG LAMP)
10
9
8
SPI RAL CABLE
7
2
3
AI R BAG DI AGNOSI S SENSOR UNI T
4
SQUI B
AI R BAG MODULE DRI VER' S SI DE HRS001
RS-41
TROUBLE DIAGNOSES - Supplemental Restraint System (SRS) Single Air Bag System Wiring Diagram -
SRS -
SINGLE AIR BAG SYSTEM
RS- SRS- 01
IGNITION SWITCH ON or START FUSE BLOCK
10A
(J/B)
3A
rn
O-JD-
Y
Ii*llJ
m
@ : With
GID@!) BR/W .3ID)- BR/W-:E-O
B!wt
" :3 I
COMBINAnON METER (AIR BAG WARNING LAMP)
EL-POWER.
tachometer @ : Without tachometer i(f ... @ 30 40 @
~BR/W~F.BR/W~
I
to
~
1211
C H ID
Refer
I
, 3 0 ,@
*2"'@9'@31 * 3 ... @ 1 6
I
t
m-~~ffl---m
BR/W ~
R/W
B
SPIRAL CABLE
@ ) ~ U * .2 1
B/ R AIR BAG DIAGNOSIS SENSOR UNIT
AIR BAG MODULE (SQUIB)
B/ R -!~
I I
~
1
lIL..m
I
I I L
rT
B
~ ~
B
~ @D
Re f e r t o l a s t p ag e ( F o l d o ut p a ge ) .
B R
~
r-----------------, I
I
1 1 ~*4
: [g]lJTIJ I
L
~
W
3*51 4
Y
I
: 1
~
HRS003
RS-42
TROUBLE DIAGNOSES - Supplemental Restraint System (SRS) Single Air Bag System Self-diagnosis DIAGNOSTIC
PROCEDURE
7
(@
without CONSULT)
Checking SRS operation by using "AIR BAG" warning lampUser mode 1. After turning ignition switch from "OFF" to "ON", "AIR BAG" warning lamp operates. 2. Compare "AIR BAG" warning lamp operation to the chart below. Note: CONSULT cannot be used for trouble diagnoses.
"AIR BAG" warning
lamp operation
-
User mode
1. Normal IGN ON ON OFF
2. Abnormal -
! -
J
Approx.I
I}
sec...
_
I
If the warning lamp shows as follows, check the SRS immediately.
e Blinking
ON OFF o.5~sec.
e Warning lamp does not illuminate at all. IGN ON ON
, ,
I
I
OFF
I
I
I
I
ecootiooo::JOO_IG_N_O_N
_
OFF
MRS106
RS-43
TROUBLE DIAGNOSES - Supplemental Restraint System (SRS) Single Air Bag System Self-diagnosis (Cont'd) REPAIR PROCEDURES CAUTION: Before servicing air bag, turn the ignition switch off and disconnect least 10 minutes. Warning lamp operation
Explanation Air bag
Warning lamp blinks.
both battery cables
Repair order
Open or short in the air
1. Visually check the wiring harness and connectors.
bag module circuit.
2. Replace air bag module.
Malfunctioning diagnosis
3. Replace steering wheel assembly (including diag-
has not deployed.
and wail for at
nosis sensor unit).
sensor unit
1. Check warning lamp fuse.
Warning lamp fuse is blown.
2. Visually check the wiring harnesses and connecOpen in the warning lamp circuit Warning lamp does not illuminate at all.
tors. 3. Check warning lamp LED.
Malfunctioning LED
4. Replace steering wheel assembly (including diag-
Malfunctioning combination meter
nosis sensor unit). 5. Replace air bag harness assembly.
Malfunctioning diagnosis sensor unit
Go to COLLISION DIAGNOSIS-
Air bag has deployed:
Single Air Bag
System, page RS-45. 1. Check air bag fuse.
SRS air bag fuse is blown.
2. Visually
Warning lamp is continuously ON.
6. Replace combination meter.
check the wiring harnesses and connectors
for combination meter, diagnosis sensor unit and Open in air bag harness or spiral
spiral cable. 3. Replace spiral cable.
cable circuit
4. Replace steering wheel assembly (including diagMalfunctioning diagnosis sensor unit *; After
nosis sensor unit). 5. Replace air bag harness assembly.
air bag is deployed, warning lamp illuminates until the ignition switch is turned OFF. When the Ignition switch is turned ON again, Ihe warning lamp illuminates for approximately 7 seconds. It then blinks if malfunction is found, or goes out when there is no malfunction. Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is eliminated using the air bag warning lamp each time repair is finished. If malfunction is still observed, proceed to the next step. When malfunction is eliminated, further repair work is not required.
RS-44
COLLISION DIAGNOSIS To repair the SRS "AIR BAG", perform the following
When SRS is activated
Single Air Bag System steps:
in a collision:
C D Remove the air bag module. @ Remove the steering wheel assembly. @ ) Check the spiral cable using the table shown below: •
If the spiral cable shows any visible damage such as dents, cracks, or deformation, replace it with a new one. @ Install new steering wheel assembly. C I D Install new air bag module. @ Conduct self-diagnosis using "AIR BAG" warning lamp to ensure that entire SRS operates properly. Refer to RS-43 for details.
When SRS is not activated
in a collision:
C D Check the SRS components
using the table shown below: If the SRS components show any visible damage such as dents, cracks, or deformation, replace them with new ones. @ Conduct self-diagnosis using "AIR BAG" warning lamp to ensure that entire SRS operates properly. Refer to RS-43 for details. •
SRS inspection Part Air bag module
SRS is activated
SRS is NOT activated
REPLACE
1. Remove air bag module. Check harness cover and connectors for damage,
Install with new
terminals for deformities, and harness for binding.
bolts.
2. Install air bag module into the steering wheel to check fit and alignment with the wheel. 3. No damage found, reinstall with new bolts. 4. If damaged-REPLACE.
Steering wheel
REPLACE
Air bag must be deployed before discarding.
1. Visually check steering wheel for deformities.
assembly (includ-
2. Check harness and connectors for damage, and terminals for deformities.
ing diagnosis sen-
3. Check diagnosis sensor unit for dents, cracks or deformities.
Do not remove diagnosis sensor unit from steering wheel.
sor unit).
4. Install air bag module to check fit or alignment with steering wheel. 5. If no damage is found, reinstall the steering wheel assembly. 6. Spiral cable
If
damaged-REPLACE.
1. Check spiral cable for dents, cracks or deformities. 2. Check connectors and protective tape for damage. 3. Check steering wheel for noise, binding or heavy operation. 4.
If no
damage is found, reinstall with new bolts.
5. If damaged-REPLACE. Harness and Connectors
1. Check connectors for poor connection, damage, and terminals for deformities. 2. Check harness for binding, chafing, cuts, or deformities. 3. If no damage is found, reinstall the harness and connectors. 4. Damaged-REPLACE
damaged section of harness. Do not attempt to repair, splice or modify any
SRS harness.
RS-45
