1991 ACURA NSX transmission

G551 '93-'96 Models )
G551 '93-'96 Models)
Back-up Lights

Test

Manual Transmission:

1
.
If only one back-up right does not go on, check that
bul
b
in the taillight.
2
.
If neither back-up light goes on, check the No. 5 (15

A) fuse in the under-dash fuse box.

3
.
If the fuse and bulbs are OK, disconnect the connec- to

r
from the back-up light switch on the transmis-
sio
n
housing.

BACK-UP
LJGHT SWITCH
25 N·m (2.5 kg-m, 18 Ib-ft)
This washer must
always be replaced
for the switch to
function properly and to prevent oil

leaks.

B(GRN/BLK)
A(YEL)
TRANSMISSION HOUSING

4. Check for continuity between the A (YEL) and B (GRN/BLK) wires with the switch installed. There
should be continuity with the shift lever in reverse.

If there is no continuity, replace the switch.

If there is continuity, but the back-up lights do not
go on, check for:
— Poor ground (G501 '91-'92 Models or
— An open in the YEL or GRN/BLK wire. 4. Check for continuity between the No. 9 and No. 10 terminals. Move the lever back and forth at the

position without touching the push button, and

check for continuity within the range of free play.
If there is no continuity within the range of freeplay, adjust the position of the A/T gear position
switch (see page 23-160) ('93-'96) ('91-'92).
ff there is continuity, but the back-up tights do not go on, check for:
— Poor ground (G501 '91-'92 Models or
— An open in the YEL or GRN/BLK wire.
A/T GEAR POSITION

SWITCH

View from

wire side

Automatic Transmission:

1
.
If only one back-up light does not go on, check that
bul
b
in the taillight.
2
.
If neither back-up light goes on. check the No. 5 (15

A) fuse in the under-dash fuse box.

3
.
If the fuse and bulbs are OK, disconnect the 12-P
connector from the A/T gear position switch (back-
u
p
light switch).
ProCarManuals.com

Cruise Control

Description

The cruise control system uses mechanically and electri-

cally operated devices to maintain vehicle speed at a

setting selected by the driver.

The ECM receives command signals from the cruise con-

trol main switch and the cruise control set/resume switch.

It receives information about operating conditions from

the brake switch, vehicle speed sensor (VSS), the clutch

switch (with manual transmission), or the A/T gear posi-

tion switch (with automatic transmission). The ECM

sends operational signals to the devices that regulate the

throttle position. The throttle position maintains the

selected vehicle speed. Essentially, the ECM compares

the actual speed of the vehicle to the selected speed.

Then, it uses the result of that comparison to open or

close the throttle.

The brake switch releases the system's control of the

throttle at the instant the driver depresses the brake

pedal. The switch sends an electronic signal to the ECM

when the brake pedal is depressed; the ECM responds

by allowing the throttle to close. The clutch switch (man-

ual transmission) or the A/T gear position switch (auto-

matic transmission) sends a disengage signal to the

ECM that also allows the throttle to close.
Operation:

The cruise control system will set and automatically

maintain any speed above 25 mph (45 km/h). To set,

make sure that the main switch is in the "ON" position.

After reaching the desired speed, press the set switch.

The ECM will receive a set signal and, in turn, will actu-

ate the throttle valve control motor. When the set switch

is depressed and the cruise control system is on, the

"cruise control" ON indicator in the gauge assembly will

light up. You can cancel the cruise control system by

pushing the main switch to "OFF". This erases the set

speed from memory. If the system is disengaged tem-

porarily by the brake switch, clutch switch, or A/T gear

position switch and vehicle speed is still above 25 mph,

press the resume switch. With the resume switch

depressed and the set memory retained, the vehicle

automatically returns to the previous set speed.

For gradual acceleration without depressing the acceler-

ator pedal, push the resume switch down and hold it

there until the desired speed is reached. This will send

an acceleration signal to the ECM. When the switch is

released, the system will be reprogrammed for the new

speed. To slow down, depress the set switch. This will

send a deceleration signal to the ECM causing the car to

coast until the desired speed is reached. When the

desired speed is reached, release the set switch. This

will reprogram the system for the new speed.ProCarManuals.com

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

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

Chassis and Paint Codes
U.S. Model
Vehicle Identification Number
Manufacturer, Make and
Type of VehicleJH4: HONDA MOTOR CO., LTD.
Body Type
Door and Transmission Type
Vehicle Grade
Check Digit
Factory Code
Serial Number

COLOR
R-77
Paint Code
Vehicle Identification Number
and Federal Motor VehicleSafety Standard Certification Berlina Black
Sebring Silver Metallic
Grand Prix White Formula Red

Color

NH-547
NH-552M
NH-565
R-77 Paint Code
Paint CodeTransmission Number
Transmission Type
Serial Number
J4A4: 2000001 ~ MR9A: 2000001~
ProCarManuals.com

CANADA Model

Vehicle Identification Number
JH4NA115*PT800001

Engine Number
C30A1-3700001
Transmission Number
Transmission Type J4A4: 5-speed Manual TransmissionMR9A: 4-speed Automatic Transmission
Serial Number
J4A4: 2000001
MR9A: 2000001

Paint Code
Paint Code
NH-547
NH-552M

NH-565
R-77
Color
Berlina Black
Sebring Silver Metallic
Grand Prix White
Formula Red
Vehicle Identification Number and Federal Motor Vehicle
Safety Standard Certification
Paint Code
COLOR
R-77
J4A4-2000001ProCarManuals.com

Lubrication Points

For the details of lubrication points and types of lubricants to be applied, refer to the Illustrated Index and various workprocedures (such as Assembly/Reassembly, Replacement, Overhaul, Installation, etc.) contained in each section.

No.

LUBRICATION POINTS

LUBRICANT

Engine
Transmission

Manual

Automatic

Brake Line (including anti-lock brake system)
Clutch Line Shift lever pivots (M/T)Release fork (M/T)Steering gearbox (Manual)
Steering boots Steering column bushings
Steering ball jointsSelect lever (A/T)
Pedal linkage Intermediate shaft
Brake master power pushrod
Trunk hinges Door hinges upper and lower
Door opening detents
Fuel filler lid
Front hood hinges and latch
Clutch master cylinder pushrod
Tilt lever

Parking brake cable end
Throttle cable end Rear hatch latchRetractable headlight pin contact area
Shift cable end and select cable end
Caliper Piston seal, Dust seal, Caliper pin, Piston
Recommended Engine Oil
API Service Grade: SG Fuel Efficient Oil:
Identified by the words, "Energy Conserving II" API Service Grade: SG
SAE viscosity: 10 W—30 recommended
Fuel Efficient Oil:
Identified by the words, "Energy Conserving II"
SAE Viscosity: See chart below.
API Service Grade: SF or SG SAE Viscosity: See chart below.
Honda Premium Formula Automatic Transmission
Fluid or an equivalent DEXRON® II type automatic

transmission fluid

Brake fluid DOT3 or DOT4
Brake fluid DOT3 or DOT4
Silicone grease with molybdenum disulfide
Multi-purpose grease
Silicone grease Recommended Manual Transmission Oil
API Service Grade: SF or SG
transmission oil viscosity forambient temperature ranges
Engine oil viscosity for
ambient temperature rangesProCarManuals.com