relay ACURA NSX 1997 Service Manual Online

Rear Window Defogger

Function Test

CAUTION: Be careful not to scratch or damage the

defogger wires with the tester probe.

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

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 Locatio n Inde x
UNDER-HOO DRELAY BO X B
WIPE R LO W RELA Y
Wir e colors : BLU/RED ,
BLU/YEL , GRN/BLK , YEL/RE D
Test , pag e 23-29 4 WASHE
R MOTO R RELA Y
Wir e colors : PNK , BLK/YEL ,
YEL/GRN , BL K
Test , pag e 23-29 4
WINDSHIEL D
WIPER/WASHE R
SWITC H
Test , pag e 23-29 8
Replacemen t 23-29 6
WINDSHIEL
D WIPE R
ARMS/BLADE S UNDER-HOO
D
RELAY BO X A
WASHE R FLUI DRESERVOI RReplacement , pag e 23-29 9 COMBINE
D OPERATIO N
WIPER/WASHE R CIRCUI T
(In th e integrate d contro l unit )Test , pag e 23-17 1
WINDSHIEL D
WASHE R MOTO R
Test , pag e 23-29 9 WINDSHIEL
D WIPE R MOTO R
Test , pag e 23-29 5
Replacement , pag e 23-29 6
Descriptio n
The syste m is equippe d wit h a n intermitten t relay , a lo w rela y an d a hig h relay . Wipe r operatio n a t IN T an d L O position s i s
controlle d b y th e intermitten t wipe r circui t (incorporate d i n th e integrate d contro l unit) .
SR
S 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 .
WIPE R INTERMITTEN TRELAYWire colors : BLU/RED , BLK ,
BLU/WHT , BLU/YEL , GRN/BL K
Test, pag e 23-29 3 WIPE
R HIG H RELA Y
Wir e colors : BLU/GRN ,
BLK , GRN/BLK , YEL/RE D
Test , pag e 23-29 4
ProCarManuals.com

1. Remove the wiper intermittent relay from the

under-hood relay box B.

2. There should be continuity between the A and C

terminals when power and ground are connected to

the E and F terminals.

There should be continuity between the B and C

terminals when power is disconnected.
Troubleshooting

Intermittent Wiper Relay TestProCarManuals.com

Wiper/Washer

High Relay/Washer Relay Test

1. Remove the wiper high relay or the washer relay

from under-hood relay box B.

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.

Wiper high relay

Washer motor relay
Low Relay Test

1. Remove the wiper low relay from under-hood relay

box B.

2. Check continuity at the relay terminals.

There should be continuity between the C and D

terminals.

There should be no continuity between the A

and B terminals when power and ground are

connected to the C and D terminals.

There should be continuity between the A and B

terminals when the power is disconnected.ProCarManuals.com

Security Alar m 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 .
HOR N RELA Y
Test , pag e 23-25 1
UNDER-HOO D RELA Y BO X A
RIGH T REA R SID E
MARKE R LIGH T
Replacement , pag e 23-19 9
PASSENGER' S DOO R KE Y
CYLINDE R SWITC H
Test , pag e 23-26 9
Replacement , sectio n 2 0
IGNITIO NSWITCH
Test , pag e 23-7 2
IGNITIO NKEY SWITC H
Test , pag e 23-32 8
STERE O RADIO /
CASSETT E PLAYE RTerminals , pag e23-24 2LEFT HEADLIGH T
Replacement , pag e 23-19 5
PASSENGER' S DOOR .
LOC K ACTUATO R
ASSEMBLYTest, pag e 23-32 5
SECURIT YCONTROL UNI T
Inpu t Test ,
pag e 23-32 2
DIMME R RELA Y
Test , pag e 23-19 1
UNDER-HOO D
FUSE/RELAYBOX
TAILLIGH T RELA YTest, pag e 23-19 2
HEADLIGH T
RETRACTO R RELAY STest, pag e 23-19 2
RIGHT HEADLIGH T
Replacement ,
RIGH T FRON T pag e 23-19 5
SID E MARKE R LIGH T LEF
T FRON T
PARKIN G LIGH T
Replacement ,
pag e 23-19 7
LEF T (LOW ) HOR N
Test, pag e 23-25 0
HOOD SWITC H
Test , pag e 23-32 7
RIGH T (HIGH ) HOR N
Test , pag e 23-25 0
HEADLIGH T RELA YTest, pag e 23-19 1 Replacement
,
pag e 23-19 7 RIGH
T FRON TPARKIN G LIGH TReplacement ,
pag e 23-19 7 SECURIT
Y HOR N
Test , pag e 23-25 0
BATTER
Y
Test , pag e 23-6 8
ProCarManuals.com

Security Alar m Syste m
Wiring Connection s
"1: NSX- T (ope n top )
TRUN K KE Y
CYLINDE R SWITC H
REARWIREHARNES S
RIGH T
TAILLIGH T
ENGINECOMPARTMEN T LI D
SWITC H
DRIVER'S
DOO R KE Y
CYLINDE RSWITCH
' SECURIT Y
INDICATO R
DRIVER' S DOO R LOC K
ACTUATO R ASSEMBL Y
PASSENGER' S
DOO R KE Y
CYLINDE RSWITCH
PASSENGER' S
DOO R
LOCKACTUATO R
ASSEMBL Y
IGNITION KEYSWITC H
IGNITIO NSWITCH
UNDER-HOO D RELA Y BO X A
(HOR N RELAY )
FLOOR WIR E HARNES S
DRIVER' S DOO R
WIR E HARNES S
RIGHT REA RSIDE MARKE R
LIGH T TRUN
K LATC H
SWITC H
RETRACTABL EHEADLIGHTCONTROLUNIT
LEF TTAIL -
LIGH T
HEADLIGHT
RETRACTO RRELAYS
BATTER Y
SECURIT Y HOR N
LEF T HEADLIGH T
LEF T FRON T SID E
MARKE R LIGH T
RIGH T ROO F LOC K
SWITCH*1
PASSENGER' S
DOO R WIR E
HARNES S
SECURIT Y CONTRO L
UNIT
FRON T COMPARTMEN T
WIR E HARNES S
UNDER-HOO D FUSE/RELA Y BO X
(HEADLIGHT/TAILLIGHT /DIMMER RELAY ) LEF
T FRON T
PARKIN G
LIGH T
LEF T (LOW ) HOR N
HOO DSWITC H
FRONT COMPARTMEN TWIRE HARNES S
RIGH T FRON T SID E MARKE R
LIGH T
RIGHT HEADLIGH TRIGH
T (HIGH ) HOR N
RIGH T PARKIN G
LIGH T
LEFT REA RSIDE MARKE R LIGH TSWITCH*1
LEFTROO FLOCK
ProCarManuals.com

Immobilizer Syste m
Descriptio n
The vehicl e i s equippe d wit h a n immobilize r syste m tha t wil l disabl e th e vehicl e unles s th e prope r ignitio n ke y i s used .
Thi s syste m consist s o f a transponde r locate d i n th e ignitio n key , a receiver , a contro l unit , a n indicato r light , an d th e ECM .
Th e vehicl e ha s tw o kind s o f keys .
BLAC K
GRAY
The maste r ke y i s for :
— ignitio n switch .
— doo r locks .
— trun k lock .
— glov e bo x lock .
Th e vale t ke y i s for :
— ignitio n switch .
— doo r locks .
Th e learnin g ke y i s fo r rewritin g th e immobilize r sys -
tem.
NOTE : Thi s ke y canno t star t th e engine ; d o no t us e i t
excep t fo r rewritin g th e system . I f someon e trie s t o
star t th e engin e wit h th e learnin g key , al l maste r an d
vale t key s mus t b e relearned .
Whe n th e ke y i s inserte d i n th e ignitio n an d turne d t o th e (II ) position , th e immobilize r contro l uni t send s powe r t o th e
transponde r throug h th e receiver .
Th e transponde r the n send s a code d signa l bac k throug h th e receive r t o th e contro l unit .
Th e contro l uni t i n tur n signal s th e ECM , a s wel l a s th e starte r cu t relay .
RED
IMMOBILIZE R RECEIVE R
IGNITION KE Y(Has built-i n transponder )
23-330ProCarManuals.com

IGNITION SWITCH

PROPER KEY

INSERTED
INDICATOR

LIGHT

WRONG KEY

INSERTED
INDICATOR

LIGHT
If the proper key has been used, the starter cut relay will be energized, and the ECM will energize the fuel supply sys-

tem. The immobilizer indicator light in the gauge assembly will simultaneously come on for about two seconds, then

go off, thereby signaling that the immobilizer unit has recognized the code sent by the transponder.

If a key has been used whose code was not received or recognized by the unit, or which was not approved by Acura,

the indicator light will come on for about two seconds, then it will blink continuously.

If the ignition switch is turned OFF, the indicator will blink for about five seconds to signal that the unit has been set

correctly, then the indicator will go off.

IMMOBILIZER INDICATOR LIGHT BLINKING PATTERN:ProCarManuals.com