1991 ACURA NSX Service Repair Manual

Troubleshooting

NOTE: The numbers in the table show the troubleshooting sequence.ProCarManuals.com

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 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

22-P
CONNECTOR

16-P CONNECTOR
BLU/RED2
BLU/RED3
BRN
GRN/WHT
BRN/WHT

BLK/GRN
GRN/RED
GRN/BLU GRN/YEL1

GRY

GRN/YEL2

YEL

YEL/GRN2

WHT
BLU

LT GRN/RED

RED/YEL
BLU/RED1

LT GRN/WHT

GRN

BLK/YEL

YEL/BLU
View fromwire side
BLU/GRN
BLK/BRN
GRY/WHT
BLU/YEL
BLU/GRN
BLKProCarManuals.com

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Security Alarm System

Control Unit Input Test (cont'd)ProCarManuals.com

Security Alarm System

Ignition Key Switch Test

CAUTION: All SRS wiring harnesses are covered with yellow
outer insulation. Before disconnecting any part of the SRS wire
harness, install the short connectors (see page
24-10).
Replace the entire affected SRS harness assembly it
it has an open circuit or damaged wiring.
1. Remove the dashboard lower cover and knee
bolster pad.

DASHBOARD LOWER

COVER

2. If necessary, remove the knee bolster.

3. Disconnect the 8-P connector from the floor wire
harness.

4. Check switch continuity.
There should be continuity between the No. 8

and No. 7 terminals with the ignition key in-

serted into the ignition key cylinder.
There should be no continuity with the ignition

key removed.

KNEE BOLSTER
KNEE BOLSTER PAD
View from wire sids.
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Chassi
s
and Paint Codes

Vehicle Identification Number
Transmission Number
Vehicle Identification Number
and Federal Motor Vehicle
Safety Standard Certification Paint Code
Engine Number
Paint Code

Paint Code

R-77

NH-547

NH-552M

NH-565
Color

Formula Red

Berlina Black

Sebring Silver Metallic

Grand Prix White

U.S. Model
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CANADA Model

Vehicle Identification Number

Transmission Number

Engine Number
Vehicle Identification Number

and Federal Motor Vehicle

Safety Standard Certification
Paint Code

Paint Code

R-77

NH-547

NH-552M

NH-565

Paint Code
Color

Formula Red

Berlins Black

Sebring Silver Metallic

Grand Prix WhiteProCarManuals.com

Label Locations

SRS CAUTION LABELS: Refer to page 1-6.
BATTERY CAUTION ALB CAUTION

ALB and BRAKE
FLUID CAUTION
COOLING FAN

CAUTION

RADIATOR BLEED

PLUG CAUTION
AIR CONDITIONER
CAUTION
RETRACTABLE

HEADLIGHT CAUTION
FAN CAUTION

EXPANSION

TANK CAP

CAUTION

COOLANT
CAUTION PRECAUTION
EMISSION CONTROL
INFORMATION and
VACUUM HOSE
ROUTING DIAGRAM

SPARK PLUG

CAUTION
TIRE INFORMATIONProCarManuals.com