1997 ACURA NSX Service Repair Manual

Lighting Syste m
Tailligh t Rela y Tes t
1. Remov e th e tailligh t rela y fro m th e under-hoo d
relay 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 .
Dimmer Rela y (Canada ) Tes t
1. Remov e th e dimme r rela y fro m th e under-hoo d
relay 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 F an d E
terminal s an d betwee n th e B an d C terminals .
• Ther e shoul d b e continuit y betwee n th e A an d C
terminal s whe n powe r an d groun d ar e connect -
e d to th e E an d F terminals .
• Ther e shoul d b e n o continuit y betwee n th e A
an d C terminal s whe n powe r i s disconnected .
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4. Remov e th e tw o mountin g bolts , the n remov e th e
headligh t assembly .
5 . Instal l th e headligh t i n th e revers e orde r o f removal .
6 . Afte r replacement , adjus t th e headlight s t o loca l
requirement s (se e pag e 23-48 ).
Headlight s
Headlight Replacemen t
1. Ope n th e hood .
2. Disconnec t th e connector s fro m th e headlight .
3 . Remov e th e fron t bumpe r (se e sectio n 20 ).
HI D Inverte r Uni t Replacemen t
1. Combinatio n ligh t switc h OFF .
2 . Disconnec t th e batter y negativ e cable , the n
disconnec t th e positiv e cable .
3 . Remov e th e headlight .
4 . Remov e th e thre e mountin g screw s fro m th e HI D
inverte r unit .
5 . Disconnec t th e connectors , the n remov e th e HI D
inverte r uni t fro m th e headlight .
6 . Instal l th e HI D inverte r uni t i n th e revers e orde r o f
removal .
7 . Afte r replacement , adjus t th e headlight s t o loca l
requirement s (se e pag e 23-48 ).
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Headlights
Adjustmen t
Before adjustin g th e headlights :
• Par k th e vehicl e o n a leve l surface .
• Mak e sur e th e tir e pressure s ar e correct .
• Th e drive r o r someon e wh o weight s th e sam e shoul d
si t i n th e driver' s seat .
1 . Clea n th e oute r len s s o tha t yo u ca n se e th e cente r
o f th e headlights . 4
. Tur n th e lo w beam s on .
5 . Determin e i f th e headlight s ar e aime d properly .
Vertica l adjustment :
Measur e th e heigh t o f th e headlight s (A) . Th e light s
shoul d reflec t 5 2 m m (2. 1 in. ) belo w th e head-ligh t
height. (B)
6. I f necessary , adjus t th e headlight s t o loca l require -
ment s b y turnin g th e horizonta l adjuste r an d th e
vertica l adjuster .
2 . Par k th e vehicl e wit h th e headlight s 7. 5 m (2 5 ft )
awa y fro m a wal l o r a screen .
3 . Ope n th e hood .
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Front Turn Signal Light:

1. Open the hood.

2. Turn the bulb socket 45° counterclockwise, remove

it from the headlight assembly, then replace the

bulb.

Front Parking Light:

1. Open the hood.

2. Turn the bulb socket 45° counterclockwise, remove

it from the headlight assembly, then replace the

bulb.ProCarManuals.com

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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Horns
Horn Tes t
1. Disconnec t th e 2 P connector s fro m th e horns .
2 . Remov e th e righ t an d lef t horns . 3
. Tes t th e hor n b y connectin g powe r t o th e A or B
terminal s an d groun d t o th e other . Th e hor n shoul d
sound .
4 . I f th e hor n fail s t o sound , replac e it .
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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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Security Alarm System

Control Unit Input Test

Remove the glove box, and disconnect the 22P connec-

tor and 16P connector from the control unit.

Inspect the connector and socket terminals to be sure

they are all making good contact.

• If the terminals are bent, loose, or corroded, repair

them as necessary, and recheck the system.

• If the terminals look OK, make the following input

tests at the connector.

If any test indicates a problem, find and correct the

cause, then recheck the system.

If all the input tests prove OK, the control unit

must be faulty; replace it.

• Different wires with the same color have been given a

number suffix to distinguish them (for example,

YEL/GRN1 and YEL/GRN2 are not the same).ProCarManuals.com