1991 ACURA NSX key battery

Steering Gearbox

Removal/Installation

NOTE: Before removing the steering gearbox, make
sure the front wheels are straight ahead. 1. Remove the steering joint cover.

STEERING JOINT COVER
7. Install the 10 mm hex nut on the balt joint. Be sure
that the 10 mm hex nut is flush with the ball joint
pin end, or the threaded section of the ball joint pin
might be damaged by the ball joint remover.
NOTE: Remove
the
ball
joint
using
the
ball
joint
remover, 28 mm. Refer to page 18-21('93-'96),('91-'92)

for how to use the ball joint remover.
8. Separate the tie-rod ball joint and knuckle using the
special tool.
CAUTION: Avoid damaging the ball joint boot.

NOTE: If necessary, apply penetrating type lubri-

cant to loosen the ball joint.

BALL JOINT REMOVER. 28 mm

07MAC–SL00200

CASTLE NUT

44 N·m (4.4 kg-m, 32 Ib-ft)

10 mm HEX NUT

CLAMP

CLIP
COTTER PIN

Replace.

On reassembly, bend

the cotter pin as shown.

Corrosion resistant bolt/nut

9. Remove the folding spare tire and spare tire holder plate,
10. Disconnect the battery negative terminal, then dis- connect the positive terminal and remove the bat-
tery.

11. Remove the spare tire holder and floor under cover.

FLOOR UNDER

COVER
10 N·m

(1.0kg-m, 7lb-ft)

SPARE TIRE

HOLDER

2, Remove the steering joint bolts, and disconnect the
steering joint by moving the joint toward the col-
umn.
STEERING JOINT

TOOTHED LOCK

WASHERS

STEERING JOINT BOLTS

22 N·m (2.2 kg-m, 16 Ib-ft)

3. Lock the steering shaft with ignition key to keep the steering shaft position.
4. Raise the front of the car, and place safety stands in the proper locations (see section 1).
5. Remove the front wheels.
6. Remove the cotter pin from the castle nut, and remove
the
nut.
8 x
1.25
mm

BOLT

WASHERS

25 N·m

(2.5 kg-m, 18 lb-ft)

Corrosion resistant bolt/nut
(cont'd)ProCarManuals.com

Lights-on Reminder Systen.
Chime Test
NOTE: Refer to page 23-158 ('93-'96) ('91-'92) for a dia-
gram of the lights-o

n
reminder circuit, and page 23-166

for the input test of the circuit.
When the ignition key is turned off and removed with
the lights on, voltage is applied to the reminder circuit in
the integrated control unit. When you open the driver's
door, the circuit senses ground through the closed door
switch. With voltage at the "A6" terminal, ground at the "GRN/BLU 2
" terminal, and no voltage at the "A5" termi-
nal, the chime sounds to remind the driver to turn off

the lights.

1. Remove the dashboard lower cover, and disconnect the connectors.

DASHBOARD

LOWER

COVER

CONNECTORS
CHIME

View from wire side

2. Test the chime by connecting battery power to the "B" terminal, and ground to the "A" terminal, and
cycling the power on-off repeatedly.
3. If the chime fails to sound every time power is cycled, replace it.ProCarManuals.com

Security Alarm System
Component Location Index

SRS components are located in this area. Review the

SRS component locations, precautions, and procedures
i
n
the SRS section (24) before performing repairs or ser-

vice.

RIGHT REAR SIDE
MARKER LIGHT
Replacement, page 23-197 PASSENGER'S DOOR KEY
CYLINDER SWITCH
Test, page 23-267
Replacement, section 20
STEREO RADIO/

CASSETTE PLAYER

Terminals, page

23-240
IGNITION

SWITCH
Test, page 23-72
('93-'96) ('91-'92)
IGNITION

KEY SWITCH
Test, page 23-326 ('93-'96) ('91-'92)
UNDER-HOOD

RELAY BOX A
HORN RELAY
Test, page 23-249

BATTERY

Teat, page 23-68 ('93-'96) ('91-'92)
SECURITY HORN
Test, page 23-218 LEFT HEADLIGHT
Replacement page 23-193
LEFT FRONT
PARKING LIGHT
Replacement,
page 23-195
LEFT (LOW) HORN
Test, page 23-248
HOOD SWITCH
Test, page 23-325 ('93-'96) ('91-'92)
RIGHT (HIGH) HORN
Test, page 23-248
RIGHT FRONT

PARKING LIGHT

Replacement,

page 23-195
RIGHT HEADLIGHT
Replacement,
page 23-193
RIGHT FRONT
SIDE MARKER LIGHT
Replacement,
page 23-195 HEADLIGHT

RETRACTOR RELAYS

Test, page 23-190
('93-'96) ('91-'92)
HEADLIGHT RELAY
Test, page 23-189 TAILIGHT RELAY

Test, page 23-190
('93-'96)('91-'92)
UNDER-HOOD

FUSE/RELAY

BOX
DIMMER RELAY
Test, page 23-189
SECURITY

CONTROL UNIT
Input Test,

page 23-320 ('94-'96) ('93) ('91-'92)

PASSENGER'S DOOR

LOCK ACTUATOR

ASSEMBLY
Test, page 23-323
('94-'96) ('93) ('91-'92)ProCarManuals.com

Manual Steering
Gearbox Removal/Installation
NOTE: Before removing the steering gearbox, make
sure the front wheels are straight ahead.
1. Remove the steering joint cover.

STEERING JOINT COVER

CLAMP

CLIP

2. Remove the steering joint bolts, and disconnect the steering joint by moving the joint toward the

column.

STEERING JOINT

STEERING JOINT BOLTS
22 N .
m (2.2 kg-m, 16 Ib-ft)

3. Lock the steering shaft with ignition key to keep the steering shaft position.

4. Raise the car and place safety stands in the proper
locations (see section 1).
5. Remove the front wheels.
8 x
1.25
mm

BOLT WASHERS

25 N .
m (2.5 kg-m, 18 Ib-ft)

Corrosion resistant bolt/nut
FLOOR UNDER

COVER

9. Remove the folding spare tire and spare tire holder
plate.
10. Disconnect the battery negative terminal, then disconnect the positive terminal and remove the
battery.
11. Remove the spare tire holder and floor under cover.
10 N·
m

(1.0 kg-m, 7 Ib-ft)

SPARE TIRE
HOLDER

(cont'd)

COTTER PIN

Replace.

On reassembly, bend
the cotter pin as shown.

Corrosion resistant bolt/nut

CASTLE NUT

44 N
·
m

(4.4 kg-m, 32 Ib-ft)

10 mm HEX NUT

NOTE: If necessary, apply penetrating type lubricant
to loosen the ball joint.

BALL JOINT REMOVER. 28 mm

07MAC-SL00200

6. Remove the cotter pin from the castel nut and
remove the nut.
7. Install the 10 mm hex nut on the ball joint. Be sure that the 10 mm hex nut is flush with the ball joint
pin end, or the threaded section of the ball joint pin
might be damaged by the ball joint remover.
NOTE: Remove the ball joint using the Ball Joint

Remover, 28 mm (07MAC-SL00200). Refer to

page 18-21('93-'96), 18-21('91-'92) for how to use
8. Separate the tie-rod ball joint and knuckle using the special tool.
CAUTION: Avoid damaging the ball joint boot.

TOOTHED LOCK

WASHERSProCarManuals.com

Power Steering
Gearbox Removal/Installation

NOTE: Before removing the steering gearbox, make

sure the front wheels are straight ahead.
1. Remove the steering joint cover.

STEERING JOINT COVER

CLAMP

CLIP

2. Remove the steering joint bolts, and disconnect the steering joint by moving the joint toward the

STEERING JOINT

column.

STEERING JOINT BOLTS

22 N.
m (2.2 kg-m, 16 Ib-ft)

3. Lock the steering shaft with ignition key to keep the steering shaft position.

4. Raise the car and place safety stands in the proper
locations (see secion 1).
5. Remove the front wheels.
6. Remove the cotter pin from the castel nut and remove the nut. 7. Install the 10 mm hex nut on the ball joint. Be sure
that the 10 mm hex nut is flush with the ball joint
pin end, or the threaded section of the ball joint pin
might be damaged by the ball joint remover.
NOTE: Remove the ball joint using the Ball Joint
Remover, 28 mm (07MAC —SL00200). Refer to
page 18-21 for how to use the ball joint remover.
8. Separate the tie-rod ball joint and knuckle using the special tool.
CAUTION: Avoid damaging the ball joint boot.
NOTE: If necessary, apply penetrating type lubricant

to loosen the ball joint.

BALL JOINT REMOVER, 28 mm

07MAC-SL00200

CASTLE NUT

44 N .
m (4.4 kg-m, 32 Ib-ft)

COTTER PIN

Replace.
10 mm HEX NUT

Corrosion resistant bolt/nut

9. Remove the folding spare tire and spare tire holder plate.
10. Disconnect the battery negative terminal, then disconnect the positive terminal and remove the
battery.
11. Remove the spare tire holder and floor under cover.
10 N·m

SPARE TIRE

HOLDER

FLOOR UNDER

COVER

8 x
1.25
mm

BOLT

WASHERS

25 N .
m

(2.5 kg-m, 18 Ib-ft)

Corrosion resistant bolt/nut

TOOTHED LOCK

WASHERS

(1.0 kg-m, 7 Ib-ft)ProCarManuals.com

No.

1

2

3

4

5

6

7

8
9

Wire

BLK

ORN

GRN/WHT2
WHT/YEL

BLK/WHT
BLK/RED

BLU/WHT

BLU/RED1

GRY/WHT

GRN/YEL2
GRN/BLU

GRN/RED

BLU/GRN

WHT/RED
and

YEL/RED
Test condition
Under all conditions.
Under all conditions.Driver's door lock
switch in LOCK.
Driver's door lock
switch in UNLOCK.Passenger's door lock
switch in LOCK.
Passenger's door lock
switch in UNLOCK.
Driver's door lock knob
in LOCK.
Driver's door lock knob
in UNLOCK.
Passenger's door lock key cylinder switch in

LOCK.

Passenger's door lock
key cylinder switch in

UNLOCK.

Driver's door open.
Passenger's door open.
Ignition key is inserted

into the ignition switch.

Connect the ORN termi-
nal to the WHT/RED ter-

minal, and the YEL/RED
terminal to the BLK ter- minal momentarily.
Connect the ORN ter- minal to the YEL/RED
terminal, and the
WHT/RED terminal to
the BLK terminal momentarily. Test: Desired result
Check for continuity to

ground: There should be
continuity.

Check for voltage to ground:
There should be battery
voltage.

Check for voltage to ground:
There should be 1 V or less.
Check for voltage to ground: There should be 1 V or less.
Check for voltage to ground:
There should be 1 V or less.
Check for voltage to ground:
There should be 1 V or less.
Check for voltage to ground:
There should be 1 V or less.
Check for voltage to ground:
There should be 1 V or less.
Check door lock operation:
Both doors should lock as
power and ground are con-
nected momentarily.
Check door lock operation:
Both doors should unlock as
power and ground are con-
nected momentarily. Possible cause if result is not obtained
Poor ground (G401, 402)

An open in the wire.

Blown No. 35 (20A) fuse.
An open in the wire.
Faulty driver's door lock switch.
Poor ground (G401, 402).
An open in the wire.
Faulty passenger's door lock
switch.
Poor ground (G401, 402).
An open in the wire.
Faulty driver's door lock actuator.
Poor ground (G401, 402).
An open in the wire.
Faulty passenger's door lock
actuator.
Poor ground (G401, G402).
An open in the wire.
Faulty door switch.
Poor ground (G401, G402).
An open in the wire.
Faulty ignition key switch.
Poor ground (G401, 402).
An open in the wire.
Faulty actuator.
An open in the wire.
CAUTION: To prevent damage to the motor, connect power and ground only momentarily.ProCarManuals.com