ACURA NSX 1991 Service Repair Manual

Security Alarm System

Control Unit Input Test

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

tor and 16-P 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).
SECURITY

CONTROL UNIT

View from

wire side

Not used

No. Wire
Test condition

Test: Desired result
Possible cause if result is not obtained
22-P

CONNECTOR

16-P CONNECTORProCarManuals.com

No. Wire
Test condition

Test: Desired result
Possible cause if result is not obtainedProCarManuals.com

Security Alarm System

Control Unit Input Test

View from

wire side

No.
Wire
Test condition

Test: Desired result
Possible cause if result is not obtained

NSX-T (open top)ProCarManuals.com

Trunk Latc h Switc h Tes t
1. Ope n th e trun k li d an d remov e th e trun k rea r tri m
panel .
2. Disconnec t th e 3- P connecto r fro m th e trun k latch .
TRUN K LATC H
LOCK RO D
TRUN K OPENE RCABLE
View fro mwire sid e
3-P CONNECTO R
3. Chec k continuit y a t th e trun k latc h connecto r termi -
nals.
• Ther e shoul d b e continuit y betwee n th e B an d C
terminal s wit h th e trun k li d open .
• Ther e shoul d b e n o continuit y betwee n th e B an d
C terminal s wit h th e trun k latc h i n LOC K (trun k
li d closed ) position .
Push dow n wit h
screwdrive r t o loc kthe latc h
Doo r Switc h Tes t
1. Remov e th e doo r pane l (se e sectio n 20 ).
2 . Disconnec t th e 2- P connecto r fro m th e doo r loc k
actuato r assembly .
DOOR LOC K ACTUATO RASSEMBLY(Has built-i n doo r switch )
View fro mtermina l sid e
2-P CONNECTO R
DOOR SWITC H (Microswitc h type )
3. Chec k continuit y a t th e doo r switc h connecto r ter -
minals .
• Ther e shoul d b e continuit y betwee n th e A termi -
na l an d B termina l wit h th e doo r open .
• Ther e shoul d b e n o continuit y betwee n th e A
an d B terminal s wit h th e switc h pushe d (doo r
closed) .
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Security Alar m Syste m
Indicato r Replacemen t
1. Remov e th e doo r pane l (se e sectio n 20 ).
2 . Remov e th e tw o screw s fro m th e indicator .
3 . Remov e th e indicato r fro m th e doo r panel .
5-P CONNECTO RINDICATO
R
DOOR PANE L
Trunk Ke y Cylinde r Switc h Tes t
1. Ope n th e trun k li d an d remov e th e trun k rea r panel .
2 . Disconnec t th e 2- P connecto r fro m th e trun k ke y
cylinde r switch .
3 . Chec k continuit y a t th e switc h connecto r terminals .
• Ther e shoul d b e continuit y betwee n th e terminal s
whe n th e trun k loc k i s turne d t o UNLOC K wit h
the key .
• Ther e shoul d b e n o continuit y whe n th e loc k i s
released .
TRUNK KE Y
CYLINDE R SWITC H
2-PCONNECTO RTRUN
K KE Y
CYLINDE R
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Engine Compartment Lid Switch

Test

1. Open the engine compartment lid.

2. Disconnect the 2-P connector from the engine

compartment lid switch.

3. Check continuity at the switch connector terminals.

• There should be continuity between the terminals

with the lever released (lid open).

• There should be no continuity with the lever

pushed down (lid closed).

LEVER

View from

terminal side
2-P CONNECTOR
Hood Switch Test

1. Open the hood.

2. Disconnect the 2-P connector from the hood

switch.

3. Check continuity at switch connector terminals.

• There should be continuity between the terminals

with the lever released (hood open).

• There should be no continuity with the lever

pushed down (hood closed).

LEVER

2-P CONNECTOR

View from

terminal sideProCarManuals.com

Security Alar m Syste m
Ignition Ke y Switc h 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. Remov e th e dashboar d lowe r cover , an d disconnec t
th e connectors .
DASHBOAR DLOWERCOVER
2. Disconnec t th e 8- P connecto r fro m th e floo r wir e
harness .
3. Chec k continuit y a t th e switc h connecto r terminals .
• Ther e shoul d b e continuit y betwee n th e No . 8
an d No . 7 terminal s wit h th e ignitio n ke y inserte d
int o th e ignitio n ke y cylinder .
• Ther e shoul d b e n o continuit y betwee n terminal s
No. 8 an d No . 7 wit h th e ignitio n ke y removed .
View fro m wir e sid e
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Chassis and Paint Codes

U.S.Model

Vehicle Identification Number
Transmission Number

Paint Code

Paint Code

G-70P

NH-547

NH-565

R-77
Color

Chariot Green Pearl

Berlina Black

Grand Prix White

Formula Red

Vehicle Identification Number

and Federal Motor Vehicle Safety

Standard Certification

Paint Code
Engine NumberProCarManuals.com

CANADA Model

Vehicle Identification Number
Transmission Number

Paint Code

Paint Code

NH-547

G-70P

NH-565

R-77
Color

Berlina Black

Chariot Green Pearl

Grand Prix White

Formula Red

Vehicle Identification Number

and Canadian Motor Vehicle

Safety Standard Certification

Paint Code
Engine NumberProCarManuals.com

Warning/Caution Label Locations

SRS CAUTION LABELS: Refer to page 1-8.
FROZEN

BATTERY CAUTION

BATTERY

CAUTION

RADIATOR BLEED

PLUG CAUTION
AIR CONDITIONING
R-134a CAUTION (U.S.A only)
EXPANSION
TANK CAP

CAUTION

ENGINE COOLANT CAUTION PRECAUTION

SPARK PLUG

CAUTION

TIRE INFORMATION
ABS CAUTION

ABS and BRAKE

FLUID CAUTION

RETRACTABLE

HEADLIGHT CAUTION

EMISSION CONTROL

INFORMATION and

VACUUM HOSE

ROUTING DIAGRAM

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