1991 ACURA NSX radio

Climate control unit, stereo cassete/radio and glove box removal:

Disassemble in numbered sequence.

NOTE: Remove the center console panel.

CLIMATE CONTROL

UNIT

Disconnect the connectors.

SRS UNIT

Passenger's:
STEREO

CASSETE RADIO

Disconnect the connectors.

GROUND CABLE

GLOVE BOX
Disconnect the connectors.

TRUNK LID OPENER

MAIN SWITCH
PASSENGER'S

AIRBAG

DLC

CONNECTOR

GLOVE BOX

LID

DASHBOARD LOWER

COVER (Passenger's)

Installation is the reverse of the removal procedure.

NOTE: Make sure the connectors are connected properly.ProCarManuals.com

Stereo Soun d Syste m
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 .
POWE R AMPLIFIE R RELA Y
Test , pag e 23-24 0
STERE O RADIO/CASSETT E PLAYE R
Removal , pag e 23-23 8
Terminals , pag e 23-24 0
FOOT WEL L BAS S SPEAKE R
Replacement , pag e 23-24 5
PASSENGER' S DOO R SPEAKE R
Replacement , pag e 23-24 5
DRIVER' S DOO R
SPEAKE R
Replacement , pag e 23-24 5
REA R SPEAKE R
Replacement , pag e 23-24 5
POWE R ANTENN A MOTO R
• Test , pag e 23-24 1
• Replacement , pag e 23-24 2
WINDO W ANTENN A
MAST ANTENN A LEA D
WINDO W ANTENN ALEAD
ProCarManuals.com

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

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

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

Security Alarm System
Component Location Index

SRS components are located in this area. Review the

SRS component locations, precautions, and procedures
i
n
the SRS section (24) before performing repairs or ser-

vice.

RIGHT REAR SIDE
MARKER LIGHT
Replacement, page 23-197 PASSENGER'S DOOR KEY
CYLINDER SWITCH
Test, page 23-267
Replacement, section 20
STEREO RADIO/

CASSETTE PLAYER

Terminals, page

23-240
IGNITION

SWITCH
Test, page 23-72
('93-'96) ('91-'92)
IGNITION

KEY SWITCH
Test, page 23-326 ('93-'96) ('91-'92)
UNDER-HOOD

RELAY BOX A
HORN RELAY
Test, page 23-249

BATTERY

Teat, page 23-68 ('93-'96) ('91-'92)
SECURITY HORN
Test, page 23-218 LEFT HEADLIGHT
Replacement page 23-193
LEFT FRONT
PARKING LIGHT
Replacement,
page 23-195
LEFT (LOW) HORN
Test, page 23-248
HOOD SWITCH
Test, page 23-325 ('93-'96) ('91-'92)
RIGHT (HIGH) HORN
Test, page 23-248
RIGHT FRONT

PARKING LIGHT

Replacement,

page 23-195
RIGHT HEADLIGHT
Replacement,
page 23-193
RIGHT FRONT
SIDE MARKER LIGHT
Replacement,
page 23-195 HEADLIGHT

RETRACTOR RELAYS

Test, page 23-190
('93-'96) ('91-'92)
HEADLIGHT RELAY
Test, page 23-189 TAILIGHT RELAY

Test, page 23-190
('93-'96)('91-'92)
UNDER-HOOD

FUSE/RELAY

BOX
DIMMER RELAY
Test, page 23-189
SECURITY

CONTROL UNIT
Input Test,

page 23-320 ('94-'96) ('93) ('91-'92)

PASSENGER'S DOOR

LOCK ACTUATOR

ASSEMBLY
Test, page 23-323
('94-'96) ('93) ('91-'92)ProCarManuals.com

From pag e 23-31 2
Indicato r flashes .
0.2 se c O N / 2. 4 se c OF F
Wan t th e syste m disarmed ?
(ARMED)
Trunk opene d b y key ?
Trun k li d switc h O N
Trun k ke y cylinde r switc h
Illegal activit y
1. Doo r i s opene d forcibly . o r
2 . Engin e compartmen t li d i s opened . o r
3. Trun k li d is opene d withou t usin g th e key . o r4. Hoo d is opened . o r
5 . Batter y terminal(s ) is(are ) disconnecte d
an d reconnected . o r
6. Engin e starte r circui t an d batter y circui t ar ebypasse d b y breakin g th e ignitio n switch . o r7. Hood/engin e compartmen t lid/trun k li d opene r o r roo f
releas e leve r (NSX- T "ope n top" ) i s operated . o r
8 . Stere o radio/cassett e playe r i s disconnected .
Alar m
The horn s soun d an d headlights , sid e marke r light s an dtaillight s flas h repeatedl y fo r tw o minutes .Engine starte r circui t interrupted .
About tw o minute s passed ?Want th e syste m disarmed ?
Either doo r i s unlocke d b y usin g th e key .
• Eithe r doo r ke y cylinde r switc h
Th e securit y alar m syste m is disarmed .
Indicato r stop s flashing . (T
o pag e
23-312 )
Rear m th e securit y alar m system ?
ProCarManuals.com

II. ENGINE CONTROL MODULE (ECM) Reset Procedure

1. Turn the ignition switch off.

2. Remove the CLOCK (7.5 A) fuse from the under-hood fuse/relay box for 10 seconds to reset ECM.

NOTE: Disconnecting the CLOCK fuse also cancels the radio preset stations and the clock setting. Make note of

the radio presets before removing the fuse so you can reset them.

III. Final Procedure (this procedure must be done after any troubleshooting)

1. Remove the Jumper Wire.

NOTE: If the Service Check Connector is jumped, the MIL will stay on.

2. Do the ECM Reset Procedure.

3. Set the radio preset stations and the clock setting.

(cont'd)
CLOCK

(7.5 A) FUSE

UNDER-HOOD

FUSE/RELAY BOXProCarManuals.com