1991 ACURA NSX relay

Horns

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 ser-

vice.

HORN RELAY

Test, page 23-249

UNDER-HOOD RELAY

BOX A
CABLE REEL

Test, page 23-250
HORN SWITCH
Test, page 23-249
Overhaul, section 17
SECURITY HORNTest, page 23-248
LEFT HORN
Test, page 23-248
RIGHT HORN
Test, page 23-248
SECURITY CONTROL
UNIT
Inpu
t
Test, page 23-320
('94-'96) ('93) ('91-'92)
UNDER-HOOD

FUSE/RELAY BOX

Description

Security Alarm System:

The security alarm system is an anti-theft alarm system. If someone tries to open the trunk, hood or either door without

the ignition key, or if the roof is not fully latched the security control unit senses a signal from the sensors and activates
relays to flash the headlights and sound the horn for about two minutes.ProCarManuals.com

Power Windows
Component Location Index
POWER WINDOW

RELAY
Test
,
page 23-277
('94-'96) ('91-'93)
PASSENGER'S SWITCH

Test, page 23-274('94-'96)

Replacement, page
23-275
PASSENGER'S DOOR SWITCH

Test, page 23-204
PASSENGER'S MOTOR

Test, page 23-276('94-'96) ('91-'93)

Replacement, section 20
DRIVER'S DOOR SWITCH
Test, page 23-204
DRIVER'S MOTORTest, page 23-276('94-'96) ('91-'93)
Replacement,
section 20
MASTER SWITCH

Test, page 23-273 ('94-'96) ('91-'93)
Replacement, page 23-274
('94-'96) ('91-'93)

POWER WINDOW
CONTROL UNIT
Input test, page 23-272
('94-'96) ('91-'93)
KEY-OFF TIMER CIRCUIT
(In the integrated control unit)
Input test, page 23-168
('94-'96) ('91-'93)
UNDER-DASH FUSE BOX

UNDER-HOOD FUSE/RELAY

BOX

Description

Power Window Key-off Timer Operation:
The power windows can still be operated for about ten minutes after the ignition switch is turned from the "II" to the "I"
or "O" position as long as neither of the doors has been opened. This provides a convenience to parked occupants while
offering a degree of security against unwanted or accidental window operation.ProCarManuals.com

Relay Test

1. Remove the power window relay in the under-hood

fuse/relay box.

2. Check continuity at the relay terminals.

• There should be continuity between the C and D

terminals.

• There should be continuity between the A and B

terminals when power and ground are connect-

ed to the C and D terminals.

• There should be no continuity between the A and

B terminals when power is disconnected.ProCarManuals.com

Power Seats
Component Location Index
PASSENGER'S SEAT

DRIVER'S SEAT
RECLINE MOTOR
Test, page 23-273 ('93-'96) ('91-'92) ENGINE COMPARTMENT
FUSE/RELAY BOX
SLIDE MOTOR Test, page 23-281 POWER SEAT SWITCH

Test, page 23-280ProCarManuals.com

Rear Windo w Defogge r
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
in th e SR S sectio n 24 befor e performin g repair s o r ser -
vice .
REA R WINDO W DEFOGGE R
TIME R CIRCUI T
(I n th e integrate d contro l unit )
REAR WINDO W DEFOGGE R
Functio n Test , pag e 23-28 8
UNDER-DAS H FUS E BO X
REA R WINDO W
DEFOGGE R RELA YTest, pag e 23-28 6
ENGINE COMPARTMEN T
FUSE/RELAY BO X
Descriptio n
The rea r windo w defogge r i s controlle d b y th e integrate d contro l unit . Whe n th e defogge r switc h i n th e combinatio n
switc h i s pushed , i t send s a signa l t o th e defogge r time r i n th e integrate d contro l unit , an d th e defogge r stay s o n fo r 2 5
minute s (4 0 minute s fo r Canad a models ) o r unti l th e ignitio n switc h is turne d off .
Th e indicato r ligh t i n th e switc h show s whe n th e defogge r i s on .
REA R WINDO W
DEFOGGE R SWITC H
Removal , pag e 23-28 5
Test , pag e 23-28 7
ProCarManuals.com

Rear Windo w Defogge r
Relay Tes t
1. Remov e th e defogge r rela y i n th e engin e compart -
men t fuse/rela y box .
2 . 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 continuity between th e A an d B
terminal s whe n powe r an d groun d ar e connecte d
to 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 .
ProCarManuals.com

Rear Window Defogger

Function Test

CAUTION: Be careful not to scratch or damage the

defogger wires with the tester probe.

1. Check for voltage between the positive terminal

and body ground with the ignition switch and the

defogger switch ON. There should be battery

voltage.

• If there is no voltage, check for:

— Faulty defogger relay.

— An open in the BLK/GRN wire.

• If there is battery voltage, go to step 2.

POSITIVE TERMINAL

NEGATIVE TERMINAL

2. Disconnect the positive terminal, check for con-

tinuity between the negative terminal and body

ground. If there is no continuity, check for an open

in the defogger ground wire.

3. Reconnect the positive terminal, touch the

voltmeter positive lead to the middle of each defog-

ger wire, and the negative lead to the negative ter-

minal. There should be approximately 6 V with the

ignition switch and the defogger switch ON.

• If the voltage is as specified, the defogger wire

is OK.

• If there is battery voltage, the defogger wire is

broken on the negative side.

• If there is no voltage, the defogger wire is

broken on the positive side.
Defogger Wires Repair

To make an effective repair, the broken section must be

no longer than one inch.

1. Lightly scrub the area around the break with fine

steel wool, then clean it with alcohol.

2. Carefully mask above and below the broken section

with cellophane tape.

OPEN

CELLOPHANE

TAPE

DEFOGGER WIRE

3. Using a small brush, apply a heavy coat of silver

conductive paint extending about 1/8" on both

sides of the break. Thoroughly mix the paint before

use. Let it dry for thirty minutes.

PAINT

4. Check for proper operation with a voltmeter (it

should read half of battery voltage at the mid-

point).

5. Apply a second coat of paint in the same way. Let it

dry for three hours before removing the tape.ProCarManuals.com

Wipers/Washers
Component Location Index
SRS components are located in this area. Review theSRS component locations, precautions, and procedures
in the SRS section (24) before performing repairs or ser-
vice.
UNDER-HOOD RELAY BOX BWIPER INTERMITTENT
RELAY

Test, page 23-291 ('94-'96) ('93) ('91-'92)

WIPER LOW/HIGH RELAY

Test, page 23-292 ('94-'96) ('93) ('91-'92)

WASHER RELAY

Test, page 23-292 ('94-'96) ('93) ('91-'92) WINDSHIELD WIPER

ARMS/BLADES

WASHER FLUID
RESERVOIR

Replacement, page 23-297
('94-'96) ('91-'93)
WINDSHIELD

WASHER MOTOR
Test, page 23-297
('94-'96) ('91-'93) WINDSHIELD WIPER MOTOR
Test, page 23-293 ('94-'96) ('93) ('91-'92)
Replacement, page 23-294 ('93-'96)('91-'92) COMBINED OPERATION
WIPER/WASHER CIRCUIT

(In the integrated control unit)

Test, page 23-169 ('94-'96) ('91-'93)

Description

The system is equipped with an intermittent relay, a low relay and a high relay. Wiper operation at INT and LO positions is
controlled by the intermittent wiper circuit (incorporated in the integrated control unit). WINDSHIELD
WIPER/WASHER
SWITCH
Test, page 23-296
('94-'96) ('91-'93)
Replacement 23-294
('93-'96) ('91-'92)ProCarManuals.com