ACURA NSX 1991 Service Repair Manual

Dash Lights Brightness Control

Control Unit Input Test

1. Disconnect the 7-P connector from the control unit.

2. 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.

RED/GRN

BLK

DASH LIGHTS

BRIGHTNESS

CONTROL UNIT

7-P CONNECTOR
View from wire side

RED/BLK

No. Terminal
Test condition
RED/WHT

Test: Desired result
RED

Possible cause if result is not obtainedProCarManuals.com

Controller Remova l
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 in th e
SR S sectio n 24 befor e performin g repair s o r service .
1 . Remov e th e dashboar d lowe r cover , an d disconnec t
th e connectors .
2 . Remov e th e dashboar d lowe r pad .
DASHBOAR D LOWE RCOVER
3. Remov e th e til t cover .
DASHBOAR D LOWE RPAD
TIL T COVE R
4. Remov e th e steerin g colum n covers .
UPPER COVE R
LOWE R COVE R
5. Disconnec t th e 5- P an d 10- P connector s fro m eac h
switch .
TCS SWITC H
5-P CONNECTO R
DAS H LIGHT S BRIGHTNES S
10- P CONNECTO R CONTROLLE R
6. Remov e th e si x screws , the n remov e th e instrumen t
pane l tri m fro m th e dashboard .
INSTRUMEN T PANE L TRI M
DAS H LIGHT S BRIGHTNES S
CONTROLLE R
7. Remov e tw o screws , the n remov e th e das h light s
brightnes s controlle r fro m th e instrumen t pane l trim .
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Dash Lights Brightness Control

Controller Test

1. Remove the dash lights brightness controller from

the instrument panel (see previous page).

2. Measure resistance between A and B terminals

while rotating the adjusting dial. Resistance should

vary from 0 to 20,000 ohms as the dial is rotated.

NOTE: Resistance will vary slightly with temperature.

HEADLIGHT

RETRACTOR SWITCH
ADJUSTING

DIAL

DASH LIGHTS

BRIGHTNESS

CONTROLLER

Dash lights brightness controller
Controller Light Bulb Replacement

1. Remove the dash lights brightness controller.

2. Turn the socket 45° counterclockwise to remove it.

BULB (0.84W)ProCarManuals.com

Entry Light Timer System
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 service.
Description: It the driver's door has been opened by the

outer handle, the foot well light and a light at the Ignition

switch go on and stay on for about eight seconds after
the driver's door has been dosed.

IGNITION KEY LIGHT
Replacement, page 23-229
FOOT WELL LIGHT

Replacement, page 23-229

DRIVER'S DOOR SWITCH
(Built into the door lock actuator assembly)

Test, page 23-204

UNDER-DASH FUSE BOX ENTRY LIGHT TIMER CIRCUIT

( Built into the integrated control unit)
Input Test, page 23-161 ('93-'96) ('91-'92)
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Foot Well Light Replacement

1. Remove the dashboard lower cover.

2. Disconnect the 2-P connector from the foot well

light.

DASHBOARD LOWER COVER

2-P CONNECTOR

FOOT WELL LIGHT

3. Push the foot well light out of the dashboard lower

cover.

4. Remove the foot well light bulb.

HOUSING

BULB (3.4W)

LENS
Ignition Key Light Replacement

1. Remove the dashboard lower cover.

2. Remove the dashboard lower pad.

3. Remove the bulb/socket from the key light housing

by turning the socket 45°.

KEY SWITCH

SOCKET

BULB (1.4W)

KEY LIGHT

HOUSING

4. Remove the key light housing from the key cylinder

by removing the attaching screw.ProCarManuals.com

Removal

CAUTION: Be careful not to damage the center air vent

or clock.

1. Pull the clock out with your fingers (if necessary, use

a screwdriver).

2. Disconnect the 4-P connector from the clock.

4-P CONNECTOR

CENTER AIR VENT
Terminals

Terminal Wire Connects to
CLOCKProCarManuals.com

Replacement
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. Remov e th e cloc k (se e pag e 23-231 ).
2 . Remov e th e tw o screw s behin d th e clock , the n
remov e th e cente r ai r ven t (se e sectio n 20 ).
3 . Remov e th e fou r screws , the n remov e th e cente r
armrest .
4. Tak e ou t th e ashtray .
5 . Remov e th e fiv e screw s an d cente r consol e panel ,
the n disconnec t th e 3- P connecto r an d 4- P connec -
to r fro m th e floo r wir e harness .
ASHTRA Y
CENTERCONSOL EPANEL
CENTE R AI R VEN T
4- P CONNECTO R
3- P CONNECTO R
CENTE R ARMRES T
6. Disconnec t th e therm o fus e cas e fro m th e en d of
th e cigarett e lighte r socket .
7 . Remov e th e rin g nut , an d separat e th e cigarett e
lighte r socke t fro m th e therma l protector .
8 . Whe n installin g th e cigarett e lighter , alig n eac h lu g
o n th e fac e panel , illuminatio n rin g an d cigarett e
lighte r socke t wit h th e groov e in th e hole , the n posi -
tio n th e bul b housin g o n th e therma l protecto r
betwee n th e stop s o n th e cente r consol e panel .
9 . Mak e sur e tha t th e ground , bul b socke t an d therm o
fus e cas e ar e seate d agains t th e cigarett e lighte r
assembly .
CIGARETT ELIGHTERSOCKE T
ILLUMINATIO NRING
FACE PANE L
THERMA L
PROTECTO R
GROUNDWIRE
CENTE R CONSOL EPANELASHTRA Y LIGH T (1. 4 W )
RIN
G NU T
THERM O FUS E CAS E
CIGARETT E LIGHTE R
LIGH T (1. 4 W )
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Cigarette Lighte r
Relay Tes t
1. Remov e th e glov e bo x (se e sectio n 20 ).
2 . Disconnec t th e 4- P connecto r fro m th e cigarett e
lighte r rela y (wir e color s o f 4- P connector : BLU /
GRN, YEL/RED , BRN/YEL , BLK) .
3. 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 .
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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
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Stereo Soun d Syste m
Unit Remova l
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. Remov e th e cloc k (se e pag e 23-231 ).
2 . Remov e th e tw o screw s behin d th e clock , the n
remov e th e cente r ai r ven t (se e sectio n 20 ). 3
. Remov e th e fou r screws , the n remov e th e cente r
armrest .
PAD
CENTE R ARMRES T
4. Tak e ou t th e ashtray .
ASHTRA Y
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