manual radio set ACURA NSX 1991 Service Repair Manual

Climate control unit, stereo cassete/radio and glove box removal:

Disassemble in numbered sequence.

NOTE: Remove the center console panel.

CLIMATE CONTROL

UNIT

Disconnect the connectors.

SRS UNIT

Passenger's:
STEREO

CASSETE RADIO

Disconnect the connectors.

GROUND CABLE

GLOVE BOX
Disconnect the connectors.

TRUNK LID OPENER

MAIN SWITCH
PASSENGER'S

AIRBAG

DLC

CONNECTOR

GLOVE BOX

LID

DASHBOARD LOWER

COVER (Passenger's)

Installation is the reverse of the removal procedure.

NOTE: Make sure the connectors are connected properly.ProCarManuals.com

Stereo Soun d Syste m
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
i n th e SR S sectio n 24 befor e performin g repair s o r ser -
vice .
POWE R AMPLIFIE R RELA Y
Test , pag e 23-24 0
STERE O RADIO/CASSETT E PLAYE R
Removal , pag e 23-23 8
Terminals , pag e 23-24 0
FOOT WEL L BAS S SPEAKE R
Replacement , pag e 23-24 5
PASSENGER' S DOO R SPEAKE R
Replacement , pag e 23-24 5
DRIVER' S DOO R
SPEAKE R
Replacement , pag e 23-24 5
REA R SPEAKE R
Replacement , pag e 23-24 5
POWE R ANTENN A MOTO R
• Test , pag e 23-24 1
• Replacement , pag e 23-24 2
WINDO W ANTENN A
MAST ANTENN A LEA D
WINDO W ANTENN ALEAD
ProCarManuals.com

5. Remove the five screws and center console panel,

then disconnect the 3-P connector and 4-P connec-

tor from the floor wire harness.

CENTER CONSOLE PANEL
4-P

CONNECTOR

3-P CONNECTOR

6. Remove the four screws, then disconnect the 14-P

and 30-P connectors from the floor wire harness

and take out the climate control unit.

CLIMATE

CONTROL UNIT

30-P CONNECTOR

14-P CONNECTOR
7. Remove the four screws, then disconnect the 16-P

connector, mast antenna lead, and window anten-

na lead and take out the stereo radio/cassette

player.

STEREO RADIO/

CASSETTE PLAYER

16-P CONNECTOR

WINDOW ANTENNA LEAD
MAST ANTENNA LEADProCarManuals.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

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 ?
ProCarManuals.com

II. ENGINE CONTROL MODULE (ECM) Reset Procedure

1. Turn the ignition switch off.

2. Remove the CLOCK (7.5 A) fuse from the under-hood fuse/relay box for 10 seconds to reset ECM.

NOTE: Disconnecting the CLOCK fuse also cancels the radio preset stations and the clock setting. Make note of

the radio presets before removing the fuse so you can reset them.

III. Final Procedure (this procedure must be done after any troubleshooting)

1. Remove the Jumper Wire.

NOTE: If the Service Check Connector is jumped, the MIL will stay on.

2. Do the ECM Reset Procedure.

3. Set the radio preset stations and the clock setting.

(cont'd)
CLOCK

(7.5 A) FUSE

UNDER-HOOD

FUSE/RELAY BOXProCarManuals.com

Troubleshooting Procedures

When the Transmission Control Module (TCM) senses an abnormality in the input or output systems, the indicator
light in the gauge assembly will blink. However, when the Service Check Connector (located to the lower right of the glove compartment) is connected with a jumper wire, the indicator light will blink the Diagnostic Trouble Code (DTC)

when the ignition switch is turned on.

When the indicator light has been reported on, connect the two terminals of the Service Check Connector together.
Then turn on the ignition switch and observe the indicator light.
Codes 1 through 9 are indicated by individual short blinks. Codes 10 through 16 are indicated by a series of long and
short blinks. One long blink equals 10 short blinks. Add the long and short blinks together to determine the code. After
determining the code, refer to the electrical system Symptom-to-Component Chart on page 14-52 and 53. SERVICE CHECK
CONNECTOR
Connect with jumper wire.

INDICATOR
Some PGM-FI problems will also make the indicator light come on After repairing the PGM-FI system, disconnect the
CLOCK fuse (7.5 A) in the main relay box for more than 10 seconds to reset the TCM memory.
long short
See DTC 1

See DTC 2

See DTC 14

LIGHT

short
PGM-FI system
The PGM-FI system on this model is a sequential multiport fuel injection system. Disconnecting the CLOCK fuse also cancels the radio preset stations and the clock setting. Make note of the radio
presets before removing the fuse so you can reset them.

NOTE:ProCarManuals.com

If the inspection for a particular DTC requires the use of Test Harness (07LAJ—PT3010A):
Connect the wire harness to the Test Harness, and/or connect the Test Harness to the TCM according to the

troubleshooting flowchart.

TCM

TEST HARNESS

Terminal Locations

TCM Reset Procedure

Turn the ignition switch off. -

, Remove the CLOCK fuse (7.5 A) from the main relay box for 10 seconds to reset the TCM.

1

2

NOTE: Disconnecting the CLOCK fuse also cancels the radio preset stations and the clock setting. Make note of the
radio presets before removing the fuse so you can reset them.
Final Procedure NOTE: This procedure must be done after any troubleshooting.
1. Remove the jumper wire from the Service Check Connector.
2. Reset the TCM. 3. Set the radio preset stations and clock setting.
Only the A and D terminals of the Test Harness are used for A/T troubleshooting.

Unless otherwise noted, use only the Digital Multimeter, KS—AHM —32—003, for testing.

07LAJ-PT3010A

NOTE:ProCarManuals.com

If a customer describes the symptoms for codes 3, 6, 11, 14 or 1 5 yet the indicator light is not blinking, it will
be necessary to recreate the symptom by test driving, and then checking the indicator light with the ignition

still
ON.
If the indicator light displays codes 1,2,3,8, 11, or 16, check first the No. 9, 13 and 18 and fuse before elec-
trical troubleshooting.
If any of the fuses have blown, repair them and then recheck. If the indicator light displays codes other than those listed above or stays lit continuously, the TCM is faulty.
Sometimes the indicator light and the Malfunction Indicator Lamp (MID/Check Engine light may come on
simultaneously. If so, check the PGM-FI system according to the number of blinks on the MIL/Check Engine light,
then reset the memory by removing the CLOCK fuse in the main relay box for more than 10 seconds. Drive the vehicle for several minutes at speed over 30 mph (50 km/h), then recheck the MIL/Check Engine light.PGM-FI system

The PGM-FI system on this model is a sequential multiport fuel injectin system.
The indicator light may comes on, indicating a system problem, when, in fact, there is a poor or intermittent
electrical connection. First, check the electrical connections, clean or repair connections if necessary.If the electrical readings are not as specified when using the test harness, check the test harness connections
before proceeding.
Disconnecting the CLOCK fuse also cancels the radio preset stations and the clock setting. Make note of the radio
presets before removing the fuse so you can reset them. If the self-diagnosis indicator light does not blink, perform an inspection according to the table listed below.
Symptom
• Lock-up clutch does not
engage.

• Transmission jerks hard when shifting.
• Transmission jerks hard when
shifting.

• Transmission jerks hard when
shifting

• Lock-up clutch does not

engage.
14-7214-70 14-68
14-67

Refer to

page

Possible Cause
• Disconnected gauge assembly connector
• Short or open in tachometer wire
• Faulty tachometer
• Short or open in FAS (PNK) wire between D16 terminal and

ECM.

• Trouble in ECM
• Disconnected mainshaft speed sensor connector
• Short or open in mainshaft speed sensor wire
• Faulty mainshaft speed sensor
• Disconnected linear solenoid connector
• Short or open in linear solenoid wire
• Faulty linear solenoid
Blinks

OFF

OFF

OFF

When the ignition

switch is turned on,
indicator light
Number of indicator light

blinks while Service CheckConnector is jumped.

11

14

15

16


Ref.page

14-74
14-76
14-77
14-78
NOTE:ProCarManuals.com

Climate control unit, stereo cassete/radio and glove box removal:

Disassemble in numbered sequence.

NOTE: Remove the center console panel.

CLIMATE CONTROL

UNIT

Disconnect the connectors.

SRS UNIT

STEREO

CASSETE RADIO

Disconnect the connectors.

GROUND CABLE

Passenger's:

GLOVE BOX
Disconnect the connectors.

PASSENGER'S

AIRBAG

DASHBOARD LOWER

COVER (Passenger's)
TRUNK LID OPENER

MAIN SWITCH

GLOVE BOX

LID

Installation is the reverse of the removal procedure.

NOTE: Make sure the connectors are connected properly.

(cont'd)ProCarManuals.com