1997 ACURA NSX sensor

Vehicle Speed Sensor (VSS)

Replacement

1. Disconnect the 3P connector from the vehicle speed

sensor (VSS).

3P CONNECTOR

MOUNTING BOLTS

2. Remove the mounting bolts and the VSS, then take

out the VSS assembly.

NOTE: The VSS drive link is a very small part, be

careful not to lose it.

3. Install in the reverse order of removal.
VSS

DRIVE LINK
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Safety Indicato r
Componen t Locatio n Inde x
SRS component s ar e locate d in 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 service .
SAFET Y INDICATO R (I n th e gaug e assembly )
• Removal , pag e 23-12 9
• Troubleshooting , pag e 23-15 4
• Inpu t Test , pag e 23-15 2
ROOF LOC K SWITC H (*1 )
Test , pag e 23-15 6
PASSENGER' S DOO R SWITC H
Test , pag e 23-20 6
HIG H MOUN T BRAK E LIGH T
Test , pag e 23-21 3
CEILIN
G LIGH T
Test , pag e 23-20 3
BRAK E SWITC H
Test , pag e 23-21 3
DRIVER' S DOO R SWITC H
Test , pag e 23-20 6
ROO F HOLDE R SWITC H (*1 )
Test , pag e 23-15 7
ENGIN E COMPARTMEN T LI D SWITC H
Test , pag e 23-32 7 RIGH
T BRAK E LIGH T
FAILUR E SENSO R
Test , pag e 23-15 5
LEF T BRAK E LIGH T
FAILUR E SENSO R
Test , pag e 23-15 5 TRUN
K LATC H SWITC H
Test , pag e 23-20 7
1: NSX- T (ope n top ) onl y
Descriptio n
Safety Indicato r System :
LEDs ar e use d t o indicat e whe n th e trun k lid , engin e compartmen t lid , a door , o r th e roo f i s no t latched , o r whe n a brak e
light i s faulty , o r whe n th e roo f i s no t store d o r improperl y store d i n it s holder . Th e LED s wil l g o o n an d sta y o n fo r abou t
tw o second s afte r th e ignitio n switc h ha s bee n turne d O N (II ) t o sho w tha t th e syste m circui t i s functioning .
Brak e Ligh t Bul b Failur e Indicator :
If al l brak e ligh t bulb s ar e OK , th e indicato r ligh t stay s of f becaus e th e ORN/WH T wir e is grounde d b y th e tw o brak e ligh t
failur e sensor s connecte d i n series . Wit h th e brak e light s off , th e groun d i s provide d throug h th e diode , th e failur e senso r
rela y coils , an d bul b filaments . Wit h th e brak e ligh t on , al l fou r relay s (tw o i n th e lef t sensor , tw o i n th e righ t sensor) , con -
necte d i n series , suppl y ground . I f an y o f th e fou r bulb s i s no t working , th e chai n i s broke n an d th e ORN/WH T wir e i s no t
longe r grounded . Th e indicato r ligh t come s on .
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Wire Tes
t conditio n
Test: Desire d resul t Possible caus e if resul t i s no t obtaine d
BLKUnde r al l condition sCheck fo r continuit y t o ground :
Ther e shoul d b e continuity . •
Poo r groun d (G401 , G402 , G403 )
• A n ope n in th e wir e
YELIgnitio n switc h O N (II ) Check fo r voltag e t o ground :
Ther e shoul d b e batter y voltage . •
Blow n No . 5 (1 5 A ) fus e
• A n ope n i n th e wir e
Brak e peda l pushe d Check fo r continuit y t o ground :
Ther e shoul d b e les s tha n 4 W wit h
th e peda l pushed .
ORN/WH T
• Blow n No . 4 5 (2 0 A ) fus e
• Fault y brak e switc h
• Blow n brak e ligh t bulb s
• Fault y brak e ligh t failur e sensor s
• Poo r groun d (G551 )
• A n ope n in th e ORN/WH T o r
GRN/WH T wir e
BLU
Engin e compartmen t li d
ope n
Chec k fo r continuit y t o ground :
There shoul d b e continuity .
• Fault y engin e compartmen t li d
switc h
• Poo r groun d (G401 , G402 , G403 )
• A n ope n i n th e wir e
Trun k li d ope n
GRN/BL K
Check fo r continuit y t o ground :
Ther e shoul d b e continuity .
NOTE : Befor e testing , remov e th e
No . 3 4 (1 5 A ) fuse . •
Fault y trun k latc h switc h
• Poo r groun d (G551 )
• A n ope n in th e wir e
GRN/BL UDriver's doo r ope n
GRN/RE DPassenger' s doo r ope n Chec
k fo r continuit y t o ground :
Ther e shoul d b e continuity .
NOTE : Befor e testing , remov e th e
No . 3 4 (1 5 A ) fuse . •
Fault y doo r switc h
• Poo r groun d (G401 , G402 , G403 )
• A n ope n i n th e wir e
BLK/WH T
Ceiling ligh t switc h i n
MIDDL E positio n Connec
t t o ground : Th e ceilin g ligh t
shoul d com e on . •
Blow n No . 3 4 (1 5 A ) fus e
• Fault y ceilin g ligh t
• A n ope n in th e WHT/BL U o r
BLK/WHTwir e
RED/YEL
RED/YEL1
Retractabl e headligh t
sub-harnes s (lef t o r
right ) disconnecte d*1 Connec
t batter y powe r t o th e
BLU/RE D termina l (righ t retractor ) o r
BL U termina l (lef t retractor) ; afte r
abou t fou r second s ther e shoul d b e
batter y voltage . •
Fault y retractabl e headligh t contro l
unit
• Seized , damaged , o r improperl y
installe d retracto r linkag e
Roo f unlatche d o r of f Check fo r continuit y t o ground :
Ther e shoul d b e continuity .
*2RED/YEL2
• Fault y roo f holde r switc h
• Fault y roo f loc k switche s
• Poo r groun d (G401 , G402 , G403 )
• A n ope n in th e RED/YEL
2 o r
BLU/GR N wir e
• A n ope n in bot h th e RED/GR N an d
RED/YEL3 wire s
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Brake Ligh t Failur e Senso r Tes t
1. Firs t mak e sur e th e brak e light s com e o n whe n th e
brak e peda l i s pressed .
I f al l th e brak e light s com e on , g o t o ste p 2 .
I f on e o f th e brak e light s doe s no t com e on , chec k
whethe r th e bul b i s blown . I f th e bul b i s OK , g o
t o ste p 2 .
I f non e o f th e brak e light s com e on , chec k th e
brak e ligh t circui t.
2 . Ope n th e trun k lid , an d remov e th e tri m pane l tha t
cover s th e righ t taillight . Watc h th e
ligh t i n th e safet y indicato r whe n th e A (WHT/GRN )
wir e o f th e 6 P connecto r i s grounde d an d th e igni -
tio n switc h is turne d fro m OF F to O N (II) .
RIGH T FAILUR E SENSO R
6 P CONNECTO R
Vie w fro m wir e sid e LEF
T FAILUR E SENSO R
6 P CONNECTO R
View fro m wir e sid e
If th e ligh t come s o n an d stay s
on, ther e is a n ope n in th e A (GRN ) wir e betwee n
th e lef t failur e senso r an d th e righ t failur e sensor .
If th e ligh t doe s no t sta y on , g o
t o ste p 5 .
5. Watc h th e ligh t a s yo u tur n th e igni -
tio n switc h fro m OF F to O N (II ) wit h th e B (BLK ) wir e
o f th e 6 P connecto r grounde d an d th e brak e peda l
pressed .
If th e ligh t come s o n an d stay s
on , replac e th e lef t failur e sensor .
If th e ligh t doe s no t sta y on , chec k
fo r a n ope n in th e B (BLK ) wir e betwee n th e lef t
failur e senso r an d ground , an d chec k fo r a poo r
groun d a t G551 .
If th e ligh t come s o n an d stay s
on , chec k fo r a n ope n in th e A (WHT/GRN ) wir e
betwee n th e safet y indicato r an d th e righ t failur e
sensor .
If th e ligh t doe s no t sta y on , g o
to ste p 3 .
3. Watc h th e ligh t a s yo u tur n th e igni -
tio n switc h fro m OF F t o O N (II ) wit h th e B (GRN )
wir e o f th e 6 P connecto r grounde d an d th e brak e
peda l pressed .
If th e ligh t come s o n an d stay s
on , replac e th e righ t failur e sensor .
If th e ligh t doe s no t sta y on , g o t o
ste p 4 . 4
. Remov e th e rea r tri m pane l tha t cover s th e lef t tail -
light . Watc h th e ligh t a s yo u tur n th e
ignitio n switc h fro m OF F to O N (II ) wit h th e A (GRN )
wir e o f th e 6 P connecto r grounde d an d th e brak e
pedal pressed .
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Brake Switc h Tes t
1. I f on e o f th e brak e light s doe s no t g o on , chec k tha t
brak e ligh t bul b in th e tailligh t o r th e hig h moun t light .
2. I f non e o f th e brak e light s g o on , chec k th e No . 4 5
(2 0 A ) fus e i n th e under-hoo d fuse/rela y box .
3 . I f th e fus e an d bulb s ar e OK , disconnec t th e 4 P con -
necto r fro m th e brak e switch .
4P CONNECTO R
BRAKESWITtH
BRAK EPEDAL
4. Chec k fo r continuit y betwee n th e B an d C terminals .
Ther e shoul d b e continuit y wit h th e brak e peda l
pushed .
I f ther e i s n o continuity , replac e th e switc h o r ad -
jus t peda l heigh t (se e sectio n 19 ).
I f ther e i s continuity , bu t th e brak e light s d o no t
g o on , inspec t for :
— Poo r groun d (G401 , G402 , G403 , G551) .
— An ope n in th e WHT/GR N o r GRN/WH T wire .
— Fault y brak e ligh t failur e sensor s (se e pag e
23-155 ).
Hig h Moun t Brak e Ligh t Tes t
1. Ope n th e trun k li d an d engin e compartmen t lid .
2 . Disconnec t th e 2 P connecto r fro m th e trun k wir e
harness .
TRUNK WIR E HARNES S
SID E WIR E
HARNES S
View fro m termina l sid e Vie
w fro m
termina lside
3. Connec t a voltmete r positiv e lea d t o th e GRN/WH T
termina l an d th e negativ e lea d t o th e BL K termina l
o f th e sid e wir e harnes s sid e o f th e connector .
Pus h th e brak e pedal , an d chec k fo r voltag e betwee n
th e GRN/WH T an d th e BL K terminals . Ther e shoul d
b e batter y voltage .
I f ther e i s n o voltage , chec k for :
— Blow n No . 4 5 (2 0 A ) fus e i n th e under-hoo d
fuse/rela y box .
— A n ope n i n th e GRN/WH T o r BL K wire .
— Fault y brak e switch .
I f ther e i s batter y voltage , g o t o ste p 4 .
4 . Connec t batter y powe r t o th e GRN/WH T termina l
an d groun d t o th e BL K termina l o f th e trun k wir e
harnes s sid e o f th e connector .
Chec k tha t al l th e LED s o f th e hig h moun t brak e ligh t
go on .
If th e hig h moun t brak e ligh t doe s no t g o on ,
chec k fo r a n ope n i n th e wire s i n th e trun k lid .
I f th e wire s i n th e trun k li d ar e OK , replac e th e
hig h moun t brak e light .
I f som e o f th e LED s d o no t g o on , replac e th e hig h
moun t brak e ligh t assembly .
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Side Marker/Turn Signal/Hazard Flasher System

Description

To cope with dimensional requirements for the airbag components and to offer better operational feel, the turn signal

lever and the cancel mechanism are separated mechanically, and connected electrically instead.

The system cancels the turn signals electrically, by means of a solenoid, after a turn is made. A sensor mechanism which

consists of cancel cams on the steering shaft and a pair of switches, is used to monitor the steering shaft's position.

STEERING SHAFT

CANCEL CAM

CANCEL SWITCH

TURN SIGNAL LEVER

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Horns
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 .
UNDER-HOO D RELA YBOX A
HOR N SWITC HTest, pag e 23-25 1
Overhaul , sectio n 1 7
CABL
E REE L
Test , pag e 23-25 2
SECURITY HOR N
Test , pag e 23-25 0
UNDER-HOO DFUSE/RELAY BO X SECURIT
Y CONTRO LUNITInpu t Test , pag e 23-32 2
RIGHT HOR NTest, pag e 23-25 0 LEF
T HOR N
Test , pag e 23-25 0
Descriptio n
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 .
HORN RELA Y
Wir e colors : ORN/BLK ,
WHT/GRN, L T GRN/WHT ,, WHT/GR N
Test, pag e 23-25 1
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Supplemental Restrain t Syste m (SRS )
Components/Wirin g Location s
CAUTION: Mak e sur e al l SR S groun d location s ar e clea n an d ground s ar e securel y attached .
NOTE:
• Al l SR S electrica l wirin g harnes s ar e covere d wit h yello w insulation .
• Replac e th e entir e affecte d SR S harnes s assembl y i f i t ha s a n ope n cirui t o r damage d wiring .
SRS INDICATO R LIGH T (I n th e gaug e assembly ) T O CRUIS E CONTRO L
Troubleshooting , pag e 24-1 3 SET/RESUME SWITC H
Gaug e assembly , Sectio n 23 . CABL E REE L t o
DRIVER' S AIRBA G
3P Connecto r
TO HOR N SWITC H
DRIVER' S AIRBA G ASSEMBL Y
(Airba g an d Inflator )
Removal/Installation ,page 24-34/24-3 5Disposal, pag e 24-3 7
CABL E REE L t oSR S MAI N HARNES S6P Connecto r
LEFT DAS H SENSO RRemoval/Installation ,page 24-47/24-4 8
CABLE REE LRemoval/Installation ,page 24-42/24-4 4
PASSENGER' S AIRBA G ASSEMBL Y
(Airba g an d inflator )
Removal/Installation ,
pag e 24-34/24-3 5
Disposal , pag e 24-3 7
SRS MAI N HARNES S toPASSENGER' S AIRBA G
3 P Connecto r
RIGH T DAS H SENSO R
Removal/Installation ,
page 24-47/24-4 8
SRS MAI N HARNES S
t o RIGH T DAS H SENSO R
2 P Connecto r
SRS MAI N HARNES SSRS MAI N HARNES S t o FLOO R WIR E HARNES S
4 P Connecto r
UNDER-DAS H
FUS E BO X
SR S MAI N HARNES S
to UNDER-DAS HFUSE BO X
2 P Connecto r
LEF T DAS H SENSO R
t o SR S MAI N HARNES S
2 P Connecto r
SRS UNI T(Includin g safin g sensor )Removal/Installation ,
pag e 24-49/24-5 2 PASSENGER'
S SEA T BEL T
TENSIONE R
Removal/Installation ,
pag e 24-51/24-5 2
Disposal , pag e 24-3 7
PASSENGER' S SEA T BEL T
TENSIONE R t o
FLOO R WIR E HARNES S
3 P Connecto r
FLOO R WIR E
HARNES S
DRIVER' S SEA T BEL T
TENSIONE R
Removal/Installation ,page 24-51/24-5 2Disposal, pag e 24-3 7
TEST HARNES SSOCKET16P Connecto r
SRS MAI NHARNES S SOCKE T
18 P Connecto r
SR
S MAI N HARNES S
t o FLOO R WIR E HARNES S
3 P Connecto r DRIVER'
S SEA T BEL T
TENSIONE R t o
FLOO R WIR E HARNES S
3 P Connecto r
FLOO
R WIR E
HARNES S
FLOOR WIR E HARNES S
t o INDICATO R LIGH T i n
GAUGE ASSEMBL Y
30P Connecto r
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