1995 ACURA TL Service Repair Manual

Precautions/Procedures
Spring-loaded Loc k Connecto r wit h
Built-i n Shor t Contac t
The driver' s airba g ('9 6-9 8 models ) an d fron t passen -
ger's airba g ('9 7-9 8 models ) hav e a spring-loade d loc k
connecto r wit h a built-i n shor t contact . Whe n thi s con -
necto r i s disconnected , th e powe r termina l an d th e
groun d termina l i n th e airba g connecto r ar e automati -
call y shorted .
Connecto r halve s disconnected :
POWER TERMINA L
GROUND TERMINA L
CONTACTPOINT
SHOR T CONTAC T
CABLE REE L CONNECTO R
Connector halve s connected :
POWER TERMINAL
GROUND TERMINAL
CABLE REE LCONNECTO R
NO CONTACT
SHORT CONTACT
Backprobing Spring-loaded Lock
Connector s
When checkin g voltag e o r resistanc e o n thi s typ e o f
connecto r th e firs t time , i t i s necessar y t o remov e th e
retaine r t o inser t teste r probe s fro m th e wir e side . I t
i s no t necessar y t o reinstal l th e remove d retainer ; th e
terminal s wil l sta y locke d i n th e connecto r housing .
RETAINE R* Discar d afte r removal .
To remov e th e retainer , inser t a fla t ti p screwdrive r
betwee n connecto r bod y an d retainer , an d carefull y
pr y ou t th e retainer . Tak e car e no t t o brea k th e con -
nector .
RETAINE RFLAT TI PSCREWDRIVE R
RETAINER
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Disconnecting th e Airba g Connector s
To preven t accidenta l airba g deployment , tur n th e ignitio n switc h OFF , disconnec t th e negativ e batter y
cable , an d wai t thre e minute s befor e disconnectin g an y SR S connectors .
Befor e disconnectin g th e SR S mai n harnes s (A ) fro m th e SR S unit , disconnec t bot h airbag s (C , D) .
Befor e disconnectin g th e cabl e ree l 2 P connecto r (B) , disconnec t th e driver' s airba g 2 P connecto r (C) .
SRSUNI T
1. Mak e sur e yo u hav e th e anti-thef t cod e fo r th e radio ,
the n writ e dow n th e frequencie s fo r th e radio' s prese t
buttons .
2 . Disconnec t th e batter y negativ e cable , the n disconnec t
th e positiv e cabl e fro m th e battery , an d wai t a t leas t
thre e minutes .
3 . Disconnec t th e airba g connector(s) .
Driver' s Side :
Remov e th e acces s pane l fro m th e steerin g wheel ,
the n disconnec t th e 2 P connecto r betwee n th e driv -
er' s airba g an d cabl e reel .
NOTE : Whe n disconnected , th e airba g connecto r i s
automaticall y shorted .
DRIVER'S AIRBA G
2 P CONNECTO R CABL
E REE L
2PCONNECTO R
ACCESS PANE L
Front Passenger' s Side :
Remov e th e glov e box .
Disconnec t th e connecto r betwee n th e fron t passen -
ger' s airba g an d SR S mai n harness .
NOTE:
When disconnected , th e airba g connecto r o n '9 7 -
9 8 model s i s automaticall y shorted .
O n '9 6 mode l connec t th e shor t connecto r (RED ) t o
th e airba g connector .
FRONT PASSENGER' S
AIRBA G
CONNECTO R
SRS MAI N HARNES S
SRS MAI NHARNES SCABLEREELDRIVER' SAIRBAG
FRONT
PASSEN -
GER' S
AIRBA GSRS MAI N HARNES S
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Precautions/Procedures
Steering-related Precaution s
Steering Whee l an d Cabl e Ree l Alignmen t
NOTE : T o avoi d misalignmen t o f th e steerin g whee l o n
reassembly , mak e sur e th e wheel s ar e turne d straigh t
ahea d befor e removin g th e steerin g wheel .
'9 6 Model : Rotat e th e cabl e ree l clockwis e unti l i t stops .
The n rotat e i t counterclockwis e (approximatel y tw o
turns ) unti l th e hol e i n th e whit e gea r line s u p wit h th e
windo w o n th e cove r an d th e arro w mar k o n th e cabl e
ree l labe l point s straigh t up .
'9 7 - 9 8 Models : Rotat e th e cabl e ree l clockwis e unti l i t
stops . The n rotat e i t counterclockwis e (approximatel y tw o
an d a hal f turns ) unti l th e arro w mar k o n th e cabl e ree l
labe l point s straigh t up .
ARRO W MAR K
WHITEGEARCABL E REE LLABE L
HOLE
'96 Mode l
only:
WINDO W
Steering Colum n Remova l
CAUTION :
Before removin g th e steerin g column , firs t discon -
nec t th e connecto r betwee n th e cabl e ree l an d th e
SR S mai n harness .
I f th e steerin g colum n is goin g t o b e remove d with -
ou t dismountin g th e steerin g wheel , loc k th e steer -
in g b y turnin g th e ignitio n ke y t o 0-LOC K position , o r
remov e th e ke y fro m th e ignitio n s o tha t th e steerin g
whee l wil l no t turn .
NOTE :
Whe n th e airba g assembl y an d cabl e ree l ar e discon -
nected , an d th e batter y i s reconnecte d an d th e igni -
tion switc h is turne d O N (II) , th e SR S uni t wil l stor e
this a s a n ope n i n th e driver' s airba g inflator , an d th e
SR S indicato r ligh t wil l com e on . I n suc h a case ,
mak e sur e t o confir m th e DTC , the n clea r th e SR S
uni t memory .
Fo r disconnectin g th e spring-loade d loc k typ e con -
nector , refe r t o pag e 24-9 .
CONNECTO RHOLDER
CABLE REE L2P CONNECTO R
SRS MAI N HARNES S2P CONNECTO R
Do no t replac e th e origina l steerin g whee l wit h an y othe r
desig n becaus e i t will mak e i t impossibl e t o properl y
instal l th e airba g (us e onl y genuin e Hond a replacemen t
parts).
After reassembly , confir m th e wheel s ar e stil l turne d
straigh t ahea d an d tha t th e steerin g whee l spok e angl e
i s correct . I f mino r spok e angl e adjustmen t i s necessary ,
d o s o onl y b y adjustin g th e tie-rods , no t b y removin g
an d repositionin g th e steerin g wheel .
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Troubleshooting
Self-diagnostic Procedure s
The self-diagnosti c functio n o f th e SR S syste m allow s i t t o locat e th e cause s o f syste m problem s an d t o stor e thi s informa -
tio n i n memory . Fo r easie r troubleshooting, this dat a ca n b e retrieve d vi a a dat a lin k circuit .
Whe n yo u tur n th e ignitio n switc h O N (II) , th e SR S indicato r wil l com e on . I f i t goe s of f afte r si x seconds , th e syste m is
normal .
I f ther e i s a n abnormality , th e syste m locate s an d define s th e problem , store s thi s informatio n i n memory , an d turn s
the SR S indicato r ligh t on .
NOTE : Th e dat a wil l remai n i n th e memor y eve n whe n th e ignitio n switc h i s turne d of f o r i f th e batter y i s disconnected .
Whe n yo u connec t th e SC S servic e connecto r t o th e servic e chec k connecto r (2P) , an d tur n th e ignitio n switc h O N (II) ,
th e SR S indicato r ligh t wil l indicat e th e diagnosti c troubl e cod e (DTC ) b y th e numbe r o f blinks .
Afte r readin g an d recordin g th e DTC , procee d wit h th e troubleshootin g fo r thi s code .
Precaution s
Use onl y a digita l multimete r t o chec k th e system . I f it' s no t a Hond a multimeter , mak e sur e it s outpu t i s 1 0 m A (0.0 1 A )
o r les s whe n switche d t o th e smalles t valu e i n th e ohmmete r range . A teste r wit h a highe r outpu t coul d damag e th e
airba g circui t o r caus e accidenta l airba g deploymen t an d possibl e injury -
Wheneve r th e ignitio n switc h i s O N (II) , o r ha s bee n turne d OF F fo r les s tha n thre e minutes , b e carefu l no t t o bum p th e
SR S unit ; th e airbag s coul d accidentall y deplo y an d caus e damag e o r injuries .
Befor e yo u remov e th e SR S mai n harness , disconnec t th e driver' s airba g connecto r an d th e fron t passenger' s airba g
connector . (Connec t th e Shor t connecto r (RED ) t o th e fron t passenger' s airba g connecto r o n a '9 6 model. )
Mak e sur e th e batter y i s sufficientl y charge d (se e sectio n 23 ). I f th e batter y i s dea d o r low , measurin g value s won' t b e
correct .
D o no t touc h a teste r prob e t o th e terminal s i n th e SR S uni t o r harnes s connectors , an d d o no t connec t th e terminal s
wit h a jumpe r wire . Us e onl y th e tes t harnes s an d th e SC S servic e connectors .
For backprobin g spring-loade d loc k typ e connectors , refe r t o pag e 24-11 .
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Reading th e DT C
Whe n th e SR S indicato r ligh t i s on , rea d th e DT C usin g on e o f thes e methods :
A . Connec t th e Hond a PG M Teste r t o th e 16 P Dat a Lin k Connecto r (DLC) , an d follo w th e tester' s prompts . I f th e teste r
indicate s n o DTC , double-chec k b y jumpin g th e servic e chec k connecto r an d watchin g th e SR S indicato r ligh t (se e
page 24-14 ).
DAT A LIN K CONNECTO R (DLC ) (16P )
(cont'd )
24-13
HOND A PG M TESTE R
Troubleshooting
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Troubleshooting
Reading th e DT C (cont'd )
SCS SERVIC E CONNECTO R
07PA Z-001010 0
2. Tur n th e ignitio n switc h O N (II) . Th e SR S indicato r ligh t come s o n fo r abou t si x second s an d goe s off . The n it wil l indi -
cat e th e DTC :
— Th e DT C consist s o f a mai n cod e an d a sub-code .
— Includin g th e mos t recen t problem , u p t o thre e differen t malfunction s ca n b e indicated .
— In cas e o f a continuou s failure , th e DT C wil l b e indicate d repeatedl y (se e exampl e 1 below) .
— In cas e o f a n intermitten t failure , th e SR S indicato r ligh t wil l indicat e th e DT C on e time , the n it wil l sta y o n (se e exam -
pl e 2 below) .
— If bot h a continuou s an d a n intermitten t failur e occur , bot h DTC s wil l b e indicate d a s continuou s failures .
— In cas e th e syste m is norma l (n o DTC) , th e SR S indicato r ligh t wil l sta y o n (se e exampl e 3) .
3. Rea d th e DTC .
4. Tur n th e ignitio n switc h OFF , an d wai t fo r te n seconds . The n disconnec t th e SC S servic e connecto r fro m th e servic e
chec k connecto r (2P) .
Example s o f DT C Indications :
1 . Continuou s failure , SR S Indicato r Ligh t is :
2 . Intermitten t failure , SR S Indicato r Ligh t is :
3 . Norma l (n o failure) , SR S Indicato r Ligh t is :
B
. Th e SR S indicato r ligh t ca n als o indicat e th e DT C b y th e numbe r o f blink s whe n th e SC S servic e connecto r i s connect -
e d to th e servic e chec k connecto r (2P) .
1 . Tur n th e ignitio n switc h OFF , an d wai t fo r te n seconds . The n connec t th e SC S servic e connecto r t o th e servic e chec k
connecto r (2P) . I f yo u d o no t wai t te n seconds , th e SR S uni t wil l no t b e completel y rese t an d wil l no t outpu t DTCs .
SRS INDICATO R LIGH T
SERVICE CHEC K CONNECTO R (2P )
[ORN , GRN/BLU ]
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Erasing th e DT C Memor y
To eras e th e DTC(s ) fro m th e SR S unit , us e a Hond a
PG M Teste r (se e th e Hond a PG M Teste r SR S vehicl e
Syste m Supplement ) o r th e followin g procedure .
1 . Mak e sur e th e ignitio n switc h i s OFF .
2 . Connec t th e SC S servic e connecto r t o th e ME S con -
necto r (2P) . D o no t us e a jumpe r wire .
MEMOR Y ERAS ESIGNAL (MES ) CONNECTO R (2P )[GRY , GRY ] or [GRN , GRN ]SCS SERVIC E CONNECTO R07PAZ-001010 0
3. Tur n th e ignitio n switc h O N (II) .
4. Th e SR S indicato r ligh t come s o n fo r abou t si x sec -
onds an d goe s off . Remov e th e SC S servic e connec -
to r fro m th e ME S connecto r (2P ) withi n fou r second s
afte r th e SR S indicato r ligh t wen t off .
5 . Th e SR S indicato r ligh t come s o n again . Reconnec t
th e SC S servic e connecto r t o th e ME S connecto r
(2P) withi n th e fou r second s afte r th e SR S indicato r
light come s on .
6. Th e SR S indicato r ligh t goe s off . Remov e th e SC S
servic e connecto r fro m th e ME S connecto r (2P )
within fou r seconds .
7. Th e SR S indicato r ligh t indicate s tha t th e memor y is
erase d b y blinkin g tw o times .
8. Tur n th e ignitio n switc h OFF , an d wai t fo r te n sec -
onds .
4 se c o r les sBlinkin g
SRS indicato rlight
MESconnecto r CONNECTE D
terminals D|SCONNECTE D
Troubleshooting Intermitten t
Failures
If ther e wa s a malfunction , bu t i t doesn' t recur , i t wil l b e
store d i n th e memor y a s a n intermitten t failure , an d th e
SR S indicato r ligh t come s on .
Afte r checkin g th e DTC , troubleshoo t a s follows :
1 . Rea d th e DT C (se e "Readin g th e DTC") .
2. Eras e th e DT C memor y (se e "Erasin g th e DT C
Memory") .
3. Wit h th e shif t leve r i n neutral , tur n th e ignitio n switc h
O N (II) , an d le t th e engin e idle .
4 . Th e SR S indicato r ligh t come s o n fo r abou t si x sec -
ond s an d goe s off .
5 . Shak e th e wir e harnes s an d th e connector , tak e a tes t
driv e (quic k acceleration , quic k braking , cornering) ,
and tur n th e steerin g whee l full y lef t an d right , an d
hold i t ther e fo r fiv e t o te n second s t o fin d th e caus e
of th e intermitten t failure .
If th e proble m recurs , th e SR S indicato r ligh t wil l
stay on .
Proble m recurs , ligh t stay s on .
6. I f yo u can' t duplicat e th e intermitten t failure , th e sys -
te m is O K a t thi s time .
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Troubleshooting
Diagnostic Troubl e Cod e (DTC ) Char t
SRS indicato r light
doesn' t com e o n
come s o n
DT C
non e
1-1
1- 2
1-3
1- 4
1-5
2- 1
2- 2
2-3
2- 4
2-5
5-1
5-2
5-3
5- 4
5-5
6-1
6- 2
6-3
6- 4
7- 1
7-2
7-3
8-1
8- 2
8-3
8- 4
8-5
8- 6
9- 1 o r
no cod e
9-2
10- 1
Possibl e caus e
Faulty SR S indicato r ligh t circui t
Open in th e driver' s airba g inflato r
Increase d resistanc e in th e driver' s airba g
inflato r
Shor t t o anothe r wir e i n th e driver' s airba g
inflato r o r decrease d resistanc e
Shor t t o powe r i n th e driver' s airba g inflato r
Shor t t o ground in th e driver' s airba g inflato r
Ope n i n th e passenger' s airba g inflato r
Increase d resistanc e in th e passenger' s airba g
inflato r
Shor t t o anothe r wir e in th e passenger' s
airba g inflato r o r decrease d resistanc e
Shor t t o powe r i n th e passenger' s airba g inflato r
Shor t t o groun d in th e passenger' s airba g
inflato r
Interna l failur e o f th e SR S uni t
Interna l failur e o f th e SR S uni t
Interna l failur e o f th e SR S uni t
Interna l failur e o f th e SR S uni t
Fault y SR S indicato r circui t o r interna l failur e
of th e SR S uni t
Fault y SR S powe r suppl y (V B line )
SR S uni t replacemen t cod e (SR S uni t mus t no t
b e use d an y longer )
Correctiv e actio n
Troubleshootin g
Troubleshootin g
Troubleshootin g
SRS uni t
replacemen t
SRS uni t
replacemen t
SRS uni t
replacemen t
SRS unit
replacemen t
Troubleshootin g
SRS uni t
replacemen t
See pag e
24-1 8
24-2 1
24-21
24-2 3
24-2 5
24-27
'96: 24-2 9
'97-98:
24-3 0
'96: 24-3 1
'97 - 98 :
24-3 2
'96: 24-3 3
'97 - 98 :
24-3 5
'96: 24-3 7
'97 - 98 :
24-3 8
24-56
24-5 6
24-56
24-5 6
24-39
24-4 4
24-5 6
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