1997 ACURA NSX ECU

Lock-up Contro l Solenoi d Valv e A/ B
Replacemen t
1. Disconnec t th e 2 P connecto r fro m th e lock-u p con -
tro l solenoi d valv e assembly .
2 . Measur e th e resistanc e betwee n th e No . 2 termina l
(solenoid valv e A ) o f th e lock-u p contro l solenoi d
valve connecto r an d bod y ground , an d betwee n th e
No . 1 termina l (solenoi d valv e B ) an d bod y ground .
LOCK-U P CONTRO L
SOLENOI D VALV E
ASSEMBL Y
TERMINAL SID E O FMAL E TERMINAL S
3. Replac e th e lock-u p contro l solenoi d valv e assem -
bl y if th e resistanc e is ou t o f specification .
4 . I f th e resistanc e i s withi n th e standard , connec t th e
No . 1 termina l o f th e lock-u p contro l solenoi d valv e
connecto r t o th e batter y positiv e terminal . A clickin g
soun d shoul d b e heard . Connec t th e No . 2 termina l t o
th e batter y positiv e terminal . A clickin g soun d shoul d
b e heard . Replac e th e lock-u p contro l solenoi d valv e
assembl y if n o clickin g soun d is heard . NOTE
: Lock-u p contro l solenoi d valve s A an d B mus t b e
removed/replace d a s a n assembly .
1 . Remov e th e mountin g bolt s an d lock-u p contro l
solenoi d valv e assembly .
Clean mountin g surfac e
an d flui d passages . LOCK-U
P CONTRO L
SOLENOI D VALV E
ASSEMBL Y
FILTER/GASKE TReplace.
6 x 1. 0 m m12 N- m (1. 2 kgf-m , 8. 7 Ibf-ft )
2. Clea n th e mountin g surfac e an d flui d passages ,
the n instal l a ne w lock-u p contro l solenoi d valv e
assembl y wit h a ne w filter/gasket .
3 . Chec k th e connecto r fo r rust , dirt , o r oi l the n recon -
nec t i t securely .
Test
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Shift Contro l Solenoi d Valv e A/ B
Tes t
1. Disconnec t th e 2 P connecto r fro m th e shif t contro l
solenoi d valv e assembly .
2 . Measur e th e resistanc e betwee n th e No . 1 termina l
(solenoi d valv e A ) o f th e shif t contro l solenoi d valv e
connecto r an d bod y ground , an d betwee n th e No . 2
termina l (solenoi d valv e B ) an d bod y ground .
SHIFT CONTRO L
SOLENOI D VALV E
ASSEMBL Y
TERMINAL SID E O F
MAL E TERMINAL S
3. Replac e th e shif t contro l solenoi d valv e assembl y if
th e resistanc e is ou t o f specification .
4 . I f th e resistanc e is withi n standard , connec t th e No .
1 termina l o f th e shif t contro l solenoi d valv e con -
necto r t o th e batter y positiv e terminal . A clickin g
soun d shoul d b e heard . Connec t th e No . 2 termina l
t o th e batter y positiv e terminal . A clickin g soun d
shoul d b e heard . Replac e th e shif t contro l solenoi d
valv e assembl y if n o clickin g soun d is heard .
Replacemen t
NOTE: Shif t contro l solenoi d valve s A an d B mus t b e
removed/replace d a s a n assembly .
1 . Remov e th e mountin g bolt s an d shif t contro l sole -
noi d valv e assembly .
SHIFT CONTRO L
SOLENOI D VALV E
ASSEMBL Y
FILTER/GASKE T
Replace .Clean mountin gsurface an d flui dpassages .
6 x 1. 0 m m12 N- m11. 2 kgf-m , 8. 7 Ibf-ft )
2. Clea n th e mountin g surfac e an d flui d passages ,
the n instal l a ne w shif t contro l solenoi d valv e
assembl y wit h a ne w filter/gasket .
3 . Chec k th e connecto r fo r rust , dirt , o r oil , the n recon -
nec t i t securely .
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Shift Loc k Releas e Cove r
Installatio n ——————————
Take th e "SHIF T LOC K RELEASE " cove r of f th e A/ T
gea r positio n indicato r panel , an d pee l of f th e
remainin g adhesive .
Clea n th e indicato r pane l thoroughl y wit h a spong e
dampene d in alcohol .
SHIFT LOC K RELEAS ECOVER
A/ T GEA R POSITIO N
INDICATO R PANE L Pee
l of f th e
remainin gadhesive .
2. Remov e th e peel-of f backin g fro m th e ne w cover .
3 . Instal l th e cove r b y alignin g th e righ t en d wit h th e
hollo w egde , an d pres s th e cove r wit h you r finger s
to secur e it .
Mak e sur e th e ne w cove r doe s no t mov e o r i s no t
take n off .
COVE R
HOLLO W EDG E
KEYHOL E
4. Mak e sur e th e slo t o n th e lef t en d o f th e cove r i s
exposed . I f th e slo t i s covered , remov e th e cove r
an d reinstal l i t properly .
SLOT COVE
R
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Interior Tri m
Replacemen t
Coupe:
Disassembl e in numbere d sequence .
NOTE:
• Whe n removin g th e rea r tri m panels , tak e car e no t t o
damag e th e contro l unit s an d relays .
• Tak e car e no t t o scratc h th e tri m panels .
Installatio n i s th e revers e o f th e remova l procedure .
NOTE :
• I f necessary , replac e an y damage d clips .
• Mak e sur e th e chil d sea t tethe r ancho r i s
installe d securely .
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CAUTION: (if roof maintenance is required)

Be careful not ot bend the edge of the roof opening.

The roof is made of aluminum alloy. Take care not to dent or scratch the roof. If there is a minor dent or scratch on the roof, repair
the roof with putty (refer to the body repair manual).

When replacing the component parts of the roof, place the roof on an appropriate pad to prevent damage.
NOTE:

Have an assistant help remove the roof.

When the roof is stored on the engine cover, lock the roof cover securely.

When installing the roof, secure it by turning both roof side lock handles. Make sure they are locked securely.
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Radiator
10. Afte r tightenin g al l th e bleedin g bolt s and plug , fil l
th e expansio n tan k wit h coolan t u p t o th e MA X line .
11 . Loose n th e therm o cove r blee d bol t t o remov e an y
remainin g air .
12 . Whe n bleedin g i s completed , retighte n th e therm o
cove r blee d bol t an d fil l th e expansio n tan k u p t o
0. 5 (0.5 3 US qt , 0.4 4 Imp qt ) o r 3 0 m m (1. 2 in)
ove r th e MA X line . 1
3 . Instal l th e expansio n tan k cap , an d tur n it 6 0 degree s
(where i t engage s th e firs t loc k ta b o f fille r neck) .
14. Star t th e engine , an d le t i t ru n unti l warme d u p (unti l
th e thermosta t open s an d th e radiato r coolin g fa n
runs) .
15. Tur n of f th e engine . Chec k th e expansio n tan k and ,
i f needed , ad d coolan t t o brin g i t u p t o th e MA X
line.
16. Tighte n th e expansio n tan k ca p securely .
17 . Reinstal l th e cove r o n th e car' s underside .
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Description
Security Alar m System :
Th e securit y alar m syste m is a n anti-thef t alar m system . I f someon e trie s t o ope n th e trunk , hoo d o r eithe r doo r withou t
th e ignitio n key , o r i f th e roo f i s no t full y latched , th e securit y contro l uni t sense s a signa l fro m th e sensor s an d activate s
relay s t o flas h th e headlight s an d soun d th e hor n fo r abou t tw o minutes .
SECURIT Y CONTRO LUNITInpu t Test , pag e 23-5 8
RIGH T (HIGH ) HOR N
Test , pag e 23-5 2
Horn s
Componen t Locatio n Inde x
SRS component s ar e locate d i n thi s area . Revie w th e
SR S componen t locations , precautions , an d procedure s
i n th e SR S (sectio n 24 ) befor e performin g repair s o r ser -
vice .
Test , pag e 23-5 3
Test, pag e 23-5 3
SECURITY/LEF T (LOW ) HOR N
Test , pag e 23-5 2
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High Hor n Rela y Tes t
1. Remov e th e hig h hor n rela y fro m under-hoo d rela y
box A .
2. Chec k continuit y a t th e rela y terminals .
• Ther e shoul d b e continuit y betwee n th e C an d D
terminals .
• Ther e shoul d b e continuit y betwee n th e A an d B
terminal s whe n powe r an d groun d ar e connecte d
t o th e C an d D terminals .
• Ther e shoul d b e n o continuit y betwee n th e A
an d B terminal s whe n powe r i s disconnected .
Security/Low Hor n Rela y Tes t
1. Remov e th e security/lo w hor n rela y fro m under -
hoo d rela y bo x B .
2 . Chec k continuit y a t th e rela y terminals .
• Ther e shoul d b e continuit y betwee n th e C an d D
terminals .
• Ther e shoul d b e continuit y betwee n th e A an d B
terminal s whe n powe r an d groun d ar e connect -
e d to th e C an d D terminals .
• Ther e shoul d b e n o continuit y betwee n th e A
an d B terminal s whe n powe r i s disconnected .
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