ACURA NSX 1997 Service Repair Manual

7. Remove the screws, then separate the hazard warn-

ing switch from the other switches.

HAZARD WARNING

SWITCH

8. If necessary, remove the hazard warning switch

bulb.

HAZARD WARNING SWITCH

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Hazard Warnin g Switc h Tes t
1. Remov e th e dashboar d lowe r cove r (se e pag e
23-222 ).
2 . Disconnec t th e 20 P connecto r fro m th e floo r wir e
harness .
3. Chec k fo r continuit y betwee n th e terminals , i n eac h
switc h position , accordin g t o th e table .
HAZAR D WARNIN G SWITC H
20P CONNECTO R
View fro m wir e sid eTermina l N isno t used .
OFF
ON
Positio n
Termina lFDENGH
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Dash Light s Brightnes s Contro l
Componen t Locatio n Inde x ——————
TRANSMISSIO NCONTROL MODUL E (TCM )
DASH LIGHT S BRIGHTNES S
CONTROL UNI TInpu t Test , pag e 23-22 6
COMBINATIO N LIGH T SWITC H
Test , pag e 23-18 3
Replacement , pag e 23-18 4
HEADLIGH T RETRACTO RSWITCH DAS
H LIGHT S BRIGHTNES S
CONTROLLERTest, pag e 23-22 8
Removal , pag e 23-22 7
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Dash Lights Brightness Control

Control Unit Input Test

1. Disconnect the 7P 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.

BLK

DASH LIGHTS

BRIGHTNESS

CONTROL UNIT

7P CONNECTOR
View from wire side

RED/BLK

Terminal
Test condition
RED/WHT

Test: Desired result
RED

Possible cause if result is not obtained

BLK

RED/BLK

RED

RED/GRN

and

RED/WHT
Under all conditions

Headlight switch ON

Headlight switch ON

Adjusting dial rotating
Check for continuity to ground:

There should be continuity.

Check for voltage to ground:

There should be battery voltage.

Attach to ground: The dash lights

should come on full bright.

Check for resistance between the

RED/GRN and RED/WHT terminals:

It should vary from 0 to 20,000

ohms as the dial is rotated.
• Poor ground (G401, G402, G403)

• An open in the wire

• Blown No. 38 (15 A) fuse

• Faulty taillight relay

• Faulty headlight switch

• An open in the wire

• An open in the RED/BLK or RED

wire

• Faulty dash lights brightness con-

troller

• An open in the wire
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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 i n 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
the 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
LOWER COVE R
5P CONNECTO R
10 P CONNECTO RDAS
H LIGHT S BRIGHTNES S
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 .
5
. Disconnec t th e 5 P an d 10 P connector s fro m eac h
switch .
TCS SWITC H
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1. Remove the dash lights brightness controller from

the instrument panel trim (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
Controller Light Bulb Replacement

1. Remove the dash lights brightness controller.

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

BULB (0.84 W)
Dash Lights Brightness Control

Controller TestProCarManuals.com

Entry Ligh t Time r Syste m
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 .
Description : I f th e driver' s doo r ha s bee n opene d b y th e
oute r handle , th e foo t wel l ligh t an d a ligh t a t th e ignitio n
switch g o o n an d sta y o n fo r abou t eigh t second s afte r
th e driver' s doo r ha s bee n closed .
FOOT WEL L LIGH TReplacement , pag e 23-23 1
UNDER-DAS H FUS E BO X
DRIVER' S DOO R SWITC H(Built into the doo r loc k actuato r assembly )Test, pag e 23-20 6
ENTRY LIGH T TIME R CIRCUI T(Built into the integrate d contro l unit )Input Test , pag e 23-16 7
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Foot Well Light Replacement

1. Remove the dashboard lower cover.

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

DASHBOARD LOWER COVER

2P CONNECTOR

FOOT WELL LIGHT

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

cover.

4. Open the foot well light cover, then remove the bulb

from the housing.

HOUSING

COVER

BULB

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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 4P connector from the clock.

4P CONNECTOR

CENTER AIR VENT
Terminals

Terminal Wire Connects to

A

B

C

D
BLK

RED/BLK

WHT/YEL

YEL
Ground

Lights-on signal

Constant power (Time

memory)

IG1 (Main clock power supply)

23-233
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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 23-233 ).
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 connecto r
fro m th e floo r wir e harness .
ASHTRA YCENTER AIR VENT
4P CONNECTOR
3P CONNECTOR
CENTER ARMRES T
6. Disconnec t th e therm o fus e cas e fro m th e en d o f
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 i n th e hole , the n posi -
tion th e bul b housin g o n th e therma l protecto r
between 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 E
LIGHTE R
SOCKE T
ILLUMINATIO NRING
FACE PANE L
THERMA LPROTECTO R
GROUNDWIRE
RING NU T
THERM O FUS E CAS E
CIGARETT E LIGHTE R
LIGH T (1. 4 W )
CENTE R CONSOL E
PANE L ASHTRA
Y LIGH T (1. 4 W )
CENTE
R
CONSOL E
PANEL
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