ACURA NSX 1991 Service Repair Manual

Removal (cont'd)

7. Disconnect the connectors from the horn and cruise control set/resume switches remove the airbag con-nector from its dips.

CRUISE CONTROL

SET/RESUME SWITCHES

4-P CONNECTOR
HORN
CONNECTOR

Disassembly/Reassembly
Store a removed airbag assembly with the
pad surface up. If the airbag is improperly stored face
down, accidental deployment could propel the unit with
enough force to cause serious injury.
NOTE: If an intact airbag assembly has been removed
from a scrapped car or has been found defective or

damaged during transit, storage or service, it should be
deployed (see section 23).

STEERING WHEELLOWER COVER STEERING WHEEL
ACCESS PANEL CRUISE CONTROL SET/RESUME SWITCH STEERING
WHEEL NUT
Replace. TORX
®
BOLT

10 N ·
m

(1.0 kg-m, 7 lb-ft)

Replace. AIRBAG ASSEMBLY

CAUTION:
Carefully inspect the airbag assembly before install-
ing. Do not install an airbag assembly that shows signs
of being dropped or improperly handled, such as dents,
cracks or deformation.
Always keep the short connector on the airbag con- nector when the harness is disconnected.
Do not disassemble or tamper with the airbag as-

sembly.
STEERING WHEEL

NUT
Replace.

8. Remove the steering wheel nut.
9. Remove the steering wheel by rocking it slightly from

side-to-side as you pull steadily with both hands.ProCarManuals.com

Removal (cont'd)

7. Disconnect the connectors from the horn and cruise control set/resume switches remove the airbag con-nector from its dips.

CRUISE CONTROL

SET/RESUME SWITCHES

4-P CONNECTOR
HORN
CONNECTOR

Disassembly/Reassembly
Store a removed airbag assembly with the
pad surface up. If the airbag is improperly stored face
down, accidental deployment could propel the unit with
enough force to cause serious injury.
NOTE: If an intact airbag assembly has been removed
from a scrapped car or has been found defective or

damaged during transit, storage or service, it should be
deployed (see section 23).

STEERING WHEELLOWER COVER STEERING WHEEL
ACCESS PANEL CRUISE CONTROL SET/RESUME SWITCH STEERING
WHEEL NUT
Replace. TORX® BOLT

10 N .
m

(1.0 kg-m, 7 lb-ft)

Replace. AIRBAG ASSEMBLY

CAUTION:
Carefully inspect the airbag assembly before install-
ing. Do not install an airbag assembly that shows signs
of being dropped or improperly handled, such as dents,
cracks or deformation.
Always keep the short connector on the airbag con- nector when the harness is disconnected.
Do not disassemble or tamper with the airbag as-

sembly.
STEERING WHEEL

NUT
Replace.

8. Remove the steering wheel nut.
9. Remove the steering wheel by rocking it slightly from

side-to-side as you pull steadily with both hands.ProCarManuals.com

Steering Wheel

Installation

NOTE: Before installing the steering wheel, make sure

the front wheels are straight ahead.

CAUTION:

Be sure to install the harness wires so that they are

not pinched or interfering with other car parts.

Do not replace the original steering wheel with any

other design, since it will make it impossible to proper-

ly install the airbag. (Use only genuine HONDA

replacement parts.)

After reassembly, confirm that the wheels are still

straight ahead and that steering wheel spoke angle

is correct. If minor spoke angle adjustment is neces-

sary, adjust the tie-rods only. Do not remove and

reposition the steering wheel.

Confirm that the airbag assembly is secure-

ly attached to the steering wheel; otherwise, severe per-

sonal injury could result during later airbag deployment.

1. Before installing the steering wheel, center the ca-

ble reel.

Do this by first rotating the cable reel clockwise un-

til it stops.

Then rotate it counterclockwise (approximately two

turns) until:

ARROW MARK

CABLE REEL

YELLOW GEAR TOOTH

ALIGNMENT MARK
2. Install the steering wheel.

NOTE: Be sure the steering wheel shaft engages the

cable reel.

50 N.m

(5.0 kg-m, 36 Ib-ft)

PIN

PIN

3. Insert the cruise control set/resume 4-P connector

and airbag 3-P connector to the steering wheel

clips.

4. Connect the horn connector.

CRUISE CONTROL

SET/RESUME SWITCHES

4-P CONNECTOR

HORN

CONNECTOR
The yellow gear tooth lines up with the mark on the

cover.

The arrow on the cable reel label points straight up.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

Steering Column

Removal
CAUTION: All SRS electrical wiring harnesses are covered with
yellow outer insulation. Before disconnecting any part of the SRS wire
harness, install the short connectors (see pages
24-10('93-'96),23-323('91-'92) and 24-11('93-'96), 23-323('91-'92).

Replace the entire effected SRS harness assembly if
it has an open circuit or damaged wiring.
1. Disconnect both the negative cable and positive ca- ble from the battery.
2. Remove the airbag assembly and steering wheel from the column (see page 17-8).
3. Remove the dashboard lower panel, knee bolster pad, and knee bolster.
KNEE BOLSTER
KNEE BOLSTER

PAD

DASHBOARD
LOWER PANEL
4. Disconnect the connector between the cable reel and the SRS main harness, then remove the con-
nector holder.
5. Remove the column lower panel.

COLUMN

LOWER PANEL

SRS MAIN HARNESS
(YELLOW)
CONNECTOR HOLDER CABLE REEL

3-P CONNECTOR

(YELLOW)6. Remove the column covers.
NOTE: Be careful not to damage the column covers.

UPPER COLUMN COVER

LOWER

COLUMN

COVER
7. Disconnect the TCS sensor connector. TCS SENSOR CONNECTOR
(GREEN)

TCS SENSORProCarManuals.com

8. Remove the combination switch assembly from the

column shaft.

NOTE: The combination switch can be removed

by disconnecting only the TCS sensor connector.

COMBINATION SWITCH

ASSEMBLY

COLUMN SHAFT

9. Remove the steering joint cover.

CLIP

CLAMPS

STEERING JOINT COVER
10. Remove the steering joint bolts and toothed lock

washers from the steering joint.

STEERING JOINT

TOOTHED

LOCK WASHERS

STEERING JOINT BOLTS

11. Disconnect the ignition switch connectors and

remove the column holder, then remove the steer-

ing column assembly by removing the 8 mm bolts

and flange nuts.

STEERING

COLUMN ASSEMBLY

COLUMN

HOLDER

8 mm BOLTS
8 mm FLANGE NUTSProCarManuals.com

Steering Column

Inspection

STEERING COLUMN
ASSEMBLY
8 mm FLANGE NUTS
16 N ·
m

(1.6 kg-m, 12 Ib-ft)
8 mm BOLTS
22 N ·
m

(2.2 kg-m, 16 Ib-ft)
CLAMPS
STEERING

JOINT COVER

NOTE:
Check
the
telescopic mechanism,
tilt
mechanism,
and
steering
joint
bearings
or
steering shaft
for
movement
and
damage.
Replace as an assembly if damaged or faulty.If either the steering column assembly or TCS sensor is removed, select the appropriate shim and adjust the distance
between the steering shaft and TCS sensor. Refer to Section 19 for shim selection.
Attach a spring scale to the knob of the telescopic lever.
Measure the force required to move the lever.
Preload:
70-90
N
(7-9
kg,
15-20 Ibs) If the force measured is not within the specification, loos-

en the locknut then the telescopic adjusting bolt until the

correct force can be obtained.

SPRING
SCALE
TELESCOPIC LEVER
SHIM


6 mm SOCKET BOLT

10 N ·
m

(1.0 kg-m,7 Ib-ft)
TCS SENSOR COLUMN HOLDER TOOTHED
LOCK WASHER

CLIP

STEERING JOINT

BOLTS

22 N ·
m

(2.2 kg-m, 16 Ib-ft)
LOCKNUT
TELESCOPIC

ADJUSTING BOLT

RETAINING
COLLARS
Check for damage.ProCarManuals.com

Installation

CAUTION:
All SRS wiring harnesses are covered with yellow
outer insulation.

Replace the entire affected SRS harness assembly if

it has an open circuit or damaged wiring.

1. Slip the lower end of the steering joint onto the pin- ion shaft.
2. Reposition the column assembly on the hanger bracket and loosely tighten with 8 mm flange nuts.
COLUMN ASSEMBLY
8 mm FLANGE NUTS
16 N.m

(1.6 kg-m, 12 lb-ft)
3. Tighten to the steering joint bolts.

NOTE:
Be sure that the lower bolt is securely in the
groove in the steering gearbox pinion shaft. Be sure the pinion shaft and the steering column
shaft are aligned; the joint should slip on freely.
If not reposition the steering rack to correct the
misalignment.
STEERING JOINT

Slip the upper end of the steering joint onto the steering

shaft (line up the bolt hole with the groove around the
shaft) and loosely install the upper bolt. STEERING COLUMN
SHAFTPull down while

tightening bolt.

Bolt must line up with flat

on shaft.

STEERING GEARBOX

PINION SHAFT

TOOTHED LOCK

WASHERS
STEERING JOINT BOLTS
22 N ·
m (2.2 kg-m, 16 Ib-ft) 4. Install the column holder with the 8 mm bolts.
COLUMN

HOLDER

8 mm BOLTS

22 N.m

(2.2 kg-m, 16 Ib-ft)
5. Tighten the 8 mm flange nuts to the specified
torque.

6. Install the steering joint cover with the clamps and clips.

CLIP

STEERING JOINT COVER
CLAMPS

(cont'd)ProCarManuals.com

Steering Column

Installation (Cont'd)
7. Install the combination switch assembly into the
column shaft.

COMBINATION SWITCH

ASSEMBLY

COLUMN SHAFT

8. Reconnect TCS sensor connector. TCS SENSOR CONNECTOR(GREEN)
TCS SENSOR 9. Install the column covers.
NOTE: Be careful not to damage the column covers.
UPPER COLUMN COVER

LOWER

COLUMN

COVER

10. Insert the cable reel 3-P connector through the col- umn lower panel and attach it to the column lower
panel with the connector holder. Then connect the
SRS main harness and cable reel 3-P connector.
11. Install the column lower panel.

COLUMN

LOWER

PANEL

SRS MAIN

HARNESS CABLE REEL 3-P
CONNECTOR
CONNECTOR
HOLDERProCarManuals.com

12. Install the knee bolster and pad.
13. Connect the foot well light harness and light-on
warning chime to the dashboard lower panel, then
install the dashboard lower panel.

KNEE

BOLSTER

KNEE BOLSTER

PAD

DASHBOARD
LOWER PANEL
14. Install the steering wheel and airbag assembly to the column (see page 17-10).ProCarManuals.com