instrument panel ACURA NSX 1991 Service Repair Manual

Steering Wheel

Installation

5. Install the airbag assembly with new Torx bolts.

TORX BOLT

10 N-m (1.0 kg-m, 7 Ib-ft)

Replace.

TORX BOLTS

10 N-m (1.0 kg-m, 7 Ib-ft)

Replace.
AIRBAG ASSEMBLY

6. Disconnect the short connector from the airbag 3P

connector.

7. Connect the airbag 3P connector and cable reel 3P

connector.

8. Attach the short connector to the access panel, then

install the access panel on the steering wheel lower

cover.

ACCESS PANEL

SHORT CONNECTOR

(RED)
9. Connect the battery positive terminal, and then con-

nect the negative terminal.

10. After installing the airbag assembly, confirm proper

system operation:

• Turn the ignition to II: the instrument panel SRS

indicator light should come on for about six sec-

onds and then go off.

• Confirm operation of horn buttons.

• Confirm operation of cruise control set/resume

switch.

• Turn the steering wheel counterclockwise and

make sure the yellow gear tooth still lines up

with the alignment mark.

YELLOW GEAR TOOTH

ALIGNMENT MARKProCarManuals.com

Safety Indicator
Indicator Input Test
SRS components are located in this area. Review the SRS
component locations, precautions, and procedures in the

SRS section (24) before performing repairs or service.
Remove the dashboard lower cover, dashboard lower
pad and instrument panel. Disconnect the connector "A"
(30-P) from the gauge assembly (see page 23-127 ('93-'96)
('91-'92)).

Inspect the connector and socket 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 a 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.
CONNECTOR "B"
CONNECTOR "
A"

YEL


GRN/BLK
BLU

RED/YEL
RED/YEL

BLK

ORN/WHT

BLK/WHT GRN/RED

GRN/BLU

View from wire sideProCarManuals.com

A/T Gear Position Indicator
Indicator Input Test

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.

Remove the dashboard lower cover, dashboard lower
pad and instrument panel. Disconnect the connector

"A" 130-P) from the gauge assembly (see page 23-127
('93-'96) ('91-'92)).

Inspect the connector and socket 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 a 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.

CONNECTOR "A"

(30-P)
CONNECTOR "'B"

YEL
RED2

RED/BLK

BRN/YEL

ORN/BLK
GRN/YEL

LT GRN/WHT

BLK
BLU/ORN
RED1

YEL/BLK
LT BLU

GRY/WHT
GRN
BRN/BLK

View from wire sideProCarManuals.com

Dash Lights Brightness Control

Controller Test

1. Remove the dash lights brightness controller from

the instrument panel (see previous page).

2. Measure resistance between A and B terminals

while rotating the adjusting dial. Resistance should

vary from 0 to 20,000 ohms as the dial is rotated.

NOTE: Resistance will vary slightly with temperature.

HEADLIGHT

RETRACTOR SWITCH
ADJUSTING

DIAL

DASH LIGHTS

BRIGHTNESS

CONTROLLER

Dash lights brightness controller
Controller Light Bulb Replacement

1. Remove the dash lights brightness controller.

2. Turn the socket 45° counterclockwise to remove it.

BULB (0.84W)ProCarManuals.com

REVERSE,
Description

(cont'd)

AUTOMATIC TRANSAXLE (A/T) GEAR POSITION INDICATOR
A/T gear position indicator in the instrument panel shows what gear has been selected without having to look down at
the console.

ATF COOLER

With this mid-engine type car, the radiator is mounted at the front of the car, so the ATF cooler is installed directly on
the transmission housing. Position
Description

PARK

REVERSE

NEUTRAL

DRIVE

THIRD

SECOND

FIRST
Rear wheels locked; parking pawl engaged with parking gear on countershaft.
All clutches released.
Reverse; reverse selector engaged with countershaft reverse gear and 4th clutch locked.
All clutches released.
General driving; starts in low speed, shifts automatically, depending on vehicle
speed and throttle position. Downshifts'through 3rd, 2nd and 1st on deceleration

to stop.
The lock-up mechanism comes into operation in 2nd, 3rd and 4th.
Driving in 3rd gear; stays in 3rd gear, does not shift up and down.
For climbing or downhill and light engine braking on high speed condition.
The lock-up mecharism comes into operation.
Driving in 2nd gear; stays in 2nd gear, does not shift up and down.
For engine braking or better traction starting off on loose or slippery surface.
Driving in 1st gear, stays in 1st gear, does not shift up.
For engine braking.

GEAR SELECTION

The selector lever has seven positons:

PARK,

NEUTRAL,


1st through 4th gear positions,

3rd

gear,
2nd gear and
1st gear.
Starting is possible only in
and
position through use of a slide-type, neutral-safety switch.
ProCarManuals.com

5.
Install
the
airbag assembly
with
new
TORX
®

bolts.
TORX ®
BOLT
10 N ·
m (1.0 kg-m, 7 Ib-ft)
Replace
TORX ®
BOLTS
10 N ·
m (1.0 kg-m, 7 Ib-ft)

Replace
AIRBAG ASSEMBLY
7. Disconnect the short connector from the airbag 3-P connector.
8. Connect the airbag 3-P connector and cable reel 3-P
connector.

9. Attach the short connector to the access panel, and install the access panel on the steering wheel
lower cover.
ACCESS PANEL SHORT CONNECTOR

(RED)
10. Connect the battery positive terminal and then con-
nect the negative terminal.
11. After installing the airbag assembly, confirm proper system operation:
Turn the ignition to II: the instrument panel SRSindicator light should come on for about 6
seconds and then go off.
Confirm operation of horn buttons.
Confirm operation of cruise control set/resume

switch.

Turn the steering wheel counterclockwise and
make sure the yellow gear tooth still lines up with
the alignment mark.
YELLOW GEAR TOOTH
ALIGNMENT MARKProCarManuals.com

Dashboard
Component Removal/Installation (cont'd)
SRS wire harnesses are routed near the steering

column.
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
23-328).

Replace the entire affected SRS harness assem-
bly if it has an open circuit or damaged wiring.
NOTE: Take care not to scratch the dashboard,
steering column and related parts.
CAUTION: When prying with a flat tip screw-
driver, wrap it with protective tape or a shop towel
to prevent damage. LEFT DASH
SENSOIR
PASSENGER'S AIRBAG
RIGHT DASH

SENSOR

SRS MAIN HARNESS
SRS UNIT

Drivers:
RETRACTOR SWITCH/DASH
BRIGHTNESS CONTROLLER

INSTRUMENT

PANEL

TCS SWITCH

Disconnect the connectors.

DASHBOARD
BRACE

KNEE

BOLSTER

KNEE BOLSTER

PAD
INSTRUMENT
PANEL

CLIP

KNEE BOLSTER

PAD

Disconnect the

connectors.

DASHBOARD LOWER COVER (Driver's)
Installation is the reverse of the removal procedure. NOTE: Make sure the connectors are connected properly.ProCarManuals.com

Dashboard

Replacement (cont'd)
NOTE: To prevent damage to the steering column,

wrap with a shop towel.
STEERING COLUMN

8 x
1.25
mm
16 N.m
(1.6 kg-m,

12 lb-ft)

8 x
1.25
mm
23 N.m
(2.3
kg-m,
17 Ib-ft)
3. Remove the nuts, then remove the airbag bracket (passenger's).
To avoid accidental deployment and

NOTE:
Disconnect the connector between the pas-
senger's airbag and SRS main wire harness.

Connect the short connector (RED) to the airbag

the connector.

PASSENGER'S AIRBAG
SRS MAIN

WIRE HARNESS
SHORT CONNECTOR
(RED)

AIRBG CONNECTOR
Connect the special tool to the SRS main wire

harness connector.
PASSENGER'S AIRBAG CONNECTOR/
SHORT CONNECTOR (RED)
SRS MAIN WIRE
HARNESS CONNECTOR

SRS SHORT CONNECTOR

07MAZ–SP00200

PASSENGER'S AIRBAG

AIRBAG BRACKET

SRS MAIN

WIRE HARNESS

MOUNTING NUT

6 x 1.0 mm 10 N .
m

(1.0 kg-m, 7.2 Ib-ft)
MOUNTING NUT

6 x 1.0 mm 10 N
.
m

(1.0 kg-m, 7.2 Ib-ft)

When installing the airbag bracket, tighten the
mounting nuts in the numbered sequence.

Remove the instrument panel and gauge assembly.
GAUGE ASSEMBLY
INSTRUMENT
PANEL

possible injury always install the short connector
on the airbag connector when the SRS wire
harness is disconnected.
CONNECTOR
HOLDERProCarManuals.com

— If all the input tests prove OK, the control unit must
CAUTION:
All SRS wiring harnesses are covered with yellow out-
er insulation.
Before disconnecting any part of the SRS wire hap

ness, install the short connectors (see page 24-10('93-'96))

Replace the entire affected SRS harness assembly if
it has an open circuit or damaged wiring.

Afte
r
installing the gauge assembly, recheck the oper-


ation of the SRS indicator light.
Remove the dashboard lower cover, center panel and
instrument panel. Disconnect the connector "B"
OOP) from the gauge assembly (see page 23-127).
Inspect the connector terminals to be sure they are
all making good contact.

I
f
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 a test indicates a problem, find and correct the cause, then recheck the system.
be faulty; replace it.
CONNECTOR "A" (Carries the SRS indicator signal)

SRS MAIN

HARNESS

CONNECTOR "A'

YEL

RED/ELK

GRN/YEL

LT BLU
View from wire side

CONNECTOR "B"

BLK

RED


LT GRN

LT GRN/WHT

YEL/BLU
GRY/WHT
GRN

YEL/BLK
BRN/BLK

A/T Gear Position Indicator
Indicator Input TestProCarManuals.com

Dashboard

Component Removal/Installation (cont'd)
SRS wire harnesses are routed near the steering column. CAUTION: All SRS electrical wiring harnesses are covered with yellow outer insulation.
Before disconnecting the SRS wire harness, install the short connector on the airbag (see page 23-323).
Replace the entire effected SRS harness assembly if it has an open circuit or damaged wiring.
Driver's Side:
NOTE: Take care not to scratch or score the dashboard and steering column.

When prying with a flat tip screwdriver, wrap it with protective tape or shop towel to prevent damage.

Disassemble in numbered sequence.

L. DASH

SENSOR
R. DASH

SENSOR
CABLE REEL and
MAIN HARNESS
SRS
UNIT
RETRACTOR SWITCH/DASH
BRIGHTNESS CONTROLLER

INSTRUMENT

PANEL

TCS SWITCH

DASHBOARD
STAY

KNEE

BOLSTER
DASHBOARD LOWER
PANEL (Driver's side) KNEE BOLSTER

PAD

INSTRUMENT

PANEL
CLIP

KNEE BOLSTER

PAD

Installation is the reverse of the removal procedure.ProCarManuals.com