engine ACURA NSX 1991 Service Repair Manual
[x] Cancel search | Manufacturer: ACURA, Model Year: 1991, Model line: NSX, Model: ACURA NSX 1991Pages: 1640, PDF Size: 60.48 MB
Page 860 of 1640

(G551) '95-'96 Models.
(G401,G402,G551) '93-94 Models or
Brake Switch
Test
1
.
If one of the brake lights does not go on, check that
brake
light bulb in the taillight or the high mount light
2
.
If none of the brake lights 90 on, check the No. 45 (2
0
A) fuse in the under-hood fuse/relay box.
3
.
If the fuse and bubs are OK, disconnect the 4-P con- necto
r
from the brake switch.
4-P CONNECTOR
BRAKE
SWITCH
BRAKE
PEDAL
4. Check for continuity between the B and C terminals. There should be continuity with the brake pedal
pushed.
If there is no continuity, replace the switch or ad-
just pedal height (see section 19).
If there is continuity, but the brake lights do not
go on, inspect for:
Poor ground (G401,G501) '91-'92 Models or
An open in the WHT/GRN or GRN/WHT wire. Faulty brake light failure sensors (see page 23-153). High Mount Brake Light Test
1. Open the trunk lid and engine compartment lid.
2. Disconnect the 2-P connector from the trunk wire
harness.
TRUNK WIRE HARNESS
SIDE WIRE
HARNESS
View from terminal side
View from
terminal
side
3. Connect a voltmeter positive lead to the GRN/WHT terminal and the negative lead to the BLK terminalof the side wire harness side of the connector.
Push the brake pedal, and check for voltage between
the GRN/WHT and the BLK terminals. There should be battery voltage. If there is no voltage, check for:
— Blown No. 45 (20 A) fuse in the under-hood
fuse/relay box.
— An open in the GRN/WHT or BLK wire.
— Faulty brake switch.
If there is battery voltage, go to step 4.
4. Connect battery power to the GRN/WHT terminal and ground to the BLK terminal of the trunk wireharness side of the connector.
Check that all the LEDs of the high mount brake light
go on.
If the high mount brake light does not go on,check for an open in the wires
in the trunk lid.
If the wires in the trunk lid are OK, replace the
high mount brake light.
If some of the LEDs do not go on,
replace the high
mount brake light assembly.
GRN/WHT BLK
BLK GRN/WHTProCarManuals.com
Page 916 of 1640

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
Page 919 of 1640

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
Page 946 of 1640

LEFT FRONT
SIDE MARKER LIGHT Replacement, page 23-195 ROOF LOCK
SWITCH*
1
Test, page 23-154 ('94-'96) ('91-'93)
STARTER CUT
RELAY
Test, page 23-80
RETRACTABLE
HEADLIGHT
CONTROL UNIT
Input Test,
page 23-178 ('94-'96) ('91-'93)
ENGINE COMPARTMENT LID SWITCHTest, page 23-325 ('93-'96) ('91-'92)
TRUNK LATCH SWITCHTest, page 23-323 ('94-'96) ('93) ('91-'92)
TRUNK KEY CYLINDER
SWITCH
Test, page 23-324 ('93-'96) ('91-'92)
TAILLIGHTS
Replacement, page 23-196
LEFT REAR SIDE
MARKER LIGHT
Replacement, page 23-197
DRIVER'S DOOR LOCK
ACTUATOR ASSEMBLY
Test, page 23-323 ('94-'96) ('93) ('91-'92)
Replacement, section 20 A/T GEAR POSITION
SWITCH
(A/T)
Test, page 23-160
('93-'96) ('91-'92)
DRIVER'S DOOR KEY CYLINDER
SWFTCH
Test, page 23-266
Replacement, section 20
SECURITY INDICATOR
Replacement, page 23-324
('93-'96) ('91-'92)
CLUTCH INTERLOCK
SWITCH (M/T)
Test, page 23-80 *1:NSX-T (open top)ProCarManuals.com
Page 948 of 1640

From pag e 23-31 2
Indicato r flashes .
0.2 se c O N / 2. 4 se c OF F
Wan t th e syste m disarmed ?
(ARMED)
Trunk opene d b y key ?
Trun k li d switc h O N
Trun k ke y cylinde r switc h
Illegal activit y
1. Doo r i s opene d forcibly . o r
2 . Engin e compartmen t li d i s opened . o r
3. Trun k li d is opene d withou t usin g th e key . o r4. Hoo d is opened . o r
5 . Batter y terminal(s ) is(are ) disconnecte d
an d reconnected . o r
6. Engin e starte r circui t an d batter y circui t ar ebypasse d b y breakin g th e ignitio n switch . o r7. Hood/engin e compartmen t lid/trun k li d opene r o r roo f
releas e leve r (NSX- T "ope n top" ) i s operated . o r
8 . Stere o radio/cassett e playe r i s disconnected .
Alar m
The horn s soun d an d headlights , sid e marke r light s an dtaillight s flas h repeatedl y fo r tw o minutes .Engine starte r circui t interrupted .
About tw o minute s passed ?Want th e syste m disarmed ?
Either doo r i s unlocke d b y usin g th e key .
• Eithe r doo r ke y cylinde r switc h
Th e securit y alar m syste m is disarmed .
Indicato r stop s flashing . (T
o pag e
23-312 )
Rear m th e securit y alar m system ?
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Page 956 of 1640

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
Page 958 of 1640

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
Page 959 of 1640

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
Page 960 of 1640

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
(cont'd)ProCarManuals.com
Page 965 of 1640

R-Replace I — Inspect After inspection, clean, adjust, repair or replace if necessary.
sec
and
PAGE
NO
19-6 19-8
19-18
19-26
19-4
19-10
19-69
19-41
19-43 19-44
19-62
18-7
17-21
('93-'96)
('94-'96)
17-60('94-'96)
('94-'96)
17-6
18-14
18-30
Under severe driving conditions, service these items more often.
Severe Driving Conditions
Items marked or in the chart indicate you will need some services more frequent-
ly in certain severe driving conditions.
The conditions are:
A: Driving loss than 5 miles (8 km) per trip, or, in freezing temperatures, driving less than 10 miles (16 km) per trip.
B: Driving, on rough or muddy roads, or de-iced roads.
C: Driving in extremely dusty conditions.
D: Extensive idling or driving long periods at slow speeds, such as a delivery vehicle. *6 : Ruler to Base Service Manual ('93 NSX, P/N 61SL002).
Services for Severe Driving Conditions
—
Clean
the air
cleaner
element
every
7,500 miles
(12,000
kml or 6
months
and
replace every
30,000
miles (48,000 km) or 24 months under condition B or C,
— Replace engine oil and oil filter every 3,750 miles (6,000 km) or\
3 months under conditions A, B, C, Dor E.
— Replace transmission oil every 15,000 miles (24,000 km) or 1 7. months under conditions D of E.
— Inspect front brake discs and calipers, and rear brake dises, calipers and pads every 7,500 miles (12,000
km) or 6 months under conditions B, C of D.
— Inspect the power steering system every 7,500 miles (12,000 km) or 6 months under conditions A, B or C.ProCarManuals.com