ACURA NSX 1991 Service Repair Manual

5. Remove the five screws and center console panel,

then disconnect the 3-P connector and 4-P connec-

tor from the floor wire harness.

CENTER CONSOLE PANEL
4-P

CONNECTOR

3-P CONNECTOR

6. Remove the four screws, then disconnect the 14-P

and 30-P connectors from the floor wire harness

and take out the climate control unit.

CLIMATE

CONTROL UNIT

30-P CONNECTOR

14-P CONNECTOR
7. Remove the four screws, then disconnect the 16-P

connector, mast antenna lead, and window anten-

na lead and take out the stereo radio/cassette

player.

STEREO RADIO/

CASSETTE PLAYER

16-P CONNECTOR

WINDOW ANTENNA LEAD
MAST ANTENNA LEADProCarManuals.com

Stereo Sound System

Unit Terminals

For MAST

ANTENNA
DIN CONNECTOR

(for CD CHANGER)

For WINDOW

ANTENNA

Terminal Wire

Connects to
Power Amplifier Relay Test

1. Remove the power amplifier relay from under-hood

relay box 8.

2. Check continuity at the relay terminals.

• There should be continuity between the C and D

terminals.

• There should be continuity between the A and B

terminals when power and ground are connect-

ed to the C and D terminals.

• There should be no continuity between the A and

B terminals when power is disconnected.ProCarManuals.com

Power Antenna Motor Test

1. Open the trunk lid and remove the side trim panel.

2. Disconnect the 4-P connector from the motor and

check power to the motor at the connector

terminals:

• There should be battery voltage between the

WHT/BLU (+) and BLK (-) terminals all the time.

• There should be battery voltage between the

PNK/WHT (+) and BLK (-) terminals only with

the ignition and radio switched ON.

WHT/BLU
BLK

View from wire side

View from wire side

3. Test motor operation:

FULL EXTEND: Connect battery power to the No.

3 and No. 4 terminals and ground

to the No. 2 terminal.

RETRACT: Disconnect power from the No. 3

terminal.
4. If the motor fails to operate properly, replace it.

MAST

ANTENNA

MAST

ANTENNA

LEAD

POWER ANTENNA MOTOR

(With the antenna retracted fully)ProCarManuals.com

Stereo Soun d Syste m
Antenn a Mas t Replacemen t
Removal:
NOTE: Th e antenn a mas t alon e ca n b e replace d withou t
removin g th e powe r antenn a motor .
1 . Remov e th e antenn a nut , O-ring , spacer , an d bush -
ing.
2. Carefull y withdra w th e antenn a mas t whil e extend -
in g i t b y turnin g th e radi o switc h ON .
ANTENN A NU T
O-RIN G
Replace .
SPACER
BUSHIN G
ANTENN A MAS T
DRIV E CABL E
ANTENN A
NU T WRENC H
07JAA-001000 C
SHOP TOWE L
TEET H
DRIV E GEA R
ANTENNA MAS T
DRIV E CABL E
POWE R ANTENN A
MOTO R
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Installation:

Hold the antenna mast drive cable so its teeth point

in the direction shown, and carefully insert the drive

cable into the antenna housing.

ANTENNA

HOUSING

Direction of the teeth

2. Check for engagement of the cable teeth to the

drive gear by carefully moving the cable up and

down.

3. Clean the threads on the antenna mast housing

threads.

4. Turn the radio switch "OFF", and let the motor pull

the drive cable inside the antenna housing.
5. Install the parts shown below.

CAUTION: Do not overtighten the antenna nut; the

rear fender will be deformed.

ANTENNA NUT

2.3 N-m (0.23 kg-m, 1.7 Ib-ft)

O-RING

Replace.

SPACER

BUSHING

ANTENNA

COLLAR

SEAL

ANTENNA

COLLAR

6. Check that the antenna mast extends and retracts

fully when the radio switch is turned ON and OFF

repeatedly.ProCarManuals.com

Stereo Soun d Syste m
Antenn a Tub e Replacemen t
1. Remov e th e antenn a mas t (se e pag e 23-242 ).
2 . Remov e th e powe r antenn a moto r (se e pag e
23-242 ).
3 . Remov e th e retainin g screw , an d pul l th e antenn a
tub e ou t o f it s socke t i n th e driv e housing .
ANTENN ATUBE
RETAININ GSCREW
4. Remov e th e plasti c guid e an d plasti c insulato r tube ,
an d instal l the m in th e ne w antenn a tube .
ANTENN ATUBE
PLASTI CINSULATO RTUBE
PLASTI C
GUIDE
5. Inser t th e ne w antenn a tube .
Wit h a n alignmen t mark :
— Inser t th e ne w antenn a tub e i n it s socket , an d
alig n th e mar k o n th e tub e wit h th e scre w use d
t o retai n it .
ALIGNMEN TMARK
RETAININ GSCREW
Withou t a n alignmen t mark :
— Inser t onl y th e tube , an d instal l th e tube/moto r
assembl y in th e car .
— Adjus t th e tub e s o tha t th e colla r fit s properl y
agains t th e body , an d mar k th e tub e an d motor .
— Remov e th e tube/moto r assembl y again .
— Alig n th e mar k o n th e tub e wit h th e mar k o n th e
motor , an d tighte n th e clampin g screw .
Adjust th e tub eso tha t th ecolla r fit s th econtou r o f th ebody .
When th e alignmen tis correct , mar k th etub e an d motor .
6. Instal l th e powe r antenn a moto r (se e pag e 23-242 ).
7 . Inser t th e mas t int o th e tub e (se e pag e 23-242 ).
ProCarManuals.com

Front/Rear Speake r Replacemen t
Front speaker :
1 . Remov e th e doo r pane l (se e sectio n 20 ).
2 . Remov e th e doo r speake r assembl y fro m th e doo r
pane l b y removin g th e fiv e screws .
DOOR SPEAKE R ASSEMBL Y
Rear speaker :
1 . Remov e th e speake r grille .
2 . Remov e th e fou r screws , the n disconnec t th e 2- P
connecto r fro m th e speaker .
SPEAKE R GRILL E
2-P CONNECTO R
REAR
CENTE R BULKHEA DPANEL
Foot Wel l Bas s Speake r Replacemen t
1. Pul l bac k th e carpe t o n th e passenger' s side .
2 . Remov e th e foo t wel l bas s speake r cover .
COVE R
CARPE T
3. Disconnec t th e 2- P an d 6- P connectors , the n remov e
th e tw o bolts , an d remov e th e foo t wel l bas s speake r
assembly .
2-P an d 6- P CONNECTOR S
EPS POWE R UNI T
FOO T WEL L BAS S SPEAKE R ASSEMBL Y
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Horns

Component Location Index

SRS components are located in this area. Review the

SRS component locations, precautions, and procedures

in the SRS section (24) before performing repairs or ser-

vice.

HORN RELAY

Test, page 23-249

UNDER-HOOD RELAY

BOX A
CABLE REEL

Test, page 23-250
HORN SWITCH
Test, page 23-249
Overhaul, section 17
SECURITY HORNTest, page 23-248
LEFT HORN
Test, page 23-248
RIGHT HORN
Test, page 23-248
SECURITY CONTROL
UNIT
Inpu
t
Test, page 23-320
('94-'96) ('93) ('91-'92)
UNDER-HOOD

FUSE/RELAY BOX

Description

Security Alarm System:

The security alarm system is an anti-theft alarm system. If someone tries to open the trunk, hood or either door without

the ignition key, or if the roof is not fully latched the security control unit senses a signal from the sensors and activates
relays to flash the headlights and sound the horn for about two minutes.ProCarManuals.com

Horns
Horn Tes t
1. Disconnec t th e 2- P connecto r fro m th e horn .
2 . Remov e th e righ t an d lef t horns .
2-P CONNECTO R
RIGHT HOR N
Securit y Horn :
2-P CONNECTO R
SECURITY
HOR N
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 .
MOUNTIN G BOL T
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Switch Tes t
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 .
1 . Disconnec t th e batter y negativ e cable , the n discon -
nec t th e positiv e cable .
2 . Mak e sur e th e wheel s ar e turne d straigh t ahead .
3 . Remov e th e dashboar d lowe r cover .
4 . Instal l th e shor t connector s o n th e airba g an d seat -
bel t tensione r connector s (se e sectio n 24 ).
(cont'd )
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