relay ACURA NSX 1997 Service User Guide

Lighting Syste m
Tailligh t Rela y Tes t
1. Remov e th e tailligh t rela y fro m th e under-hoo d
relay bo x B .
2 . Chec k continuit y a t th e rela y terminals .
• Ther e shoul d b e continuit y betwee n th e C an d D
terminals .
• Ther e shoul d b e continuit y betwee n th e A an d B
terminal s whe n powe r an d groun d ar e connect -
e d to th e C an d D terminals .
• Ther e shoul d b e n o continuit y betwee n th e A
an d B terminal s whe n powe r i s disconnected .
Dimmer Rela y (Canada ) Tes t
1. Remov e th e dimme r rela y fro m th e under-hoo d
relay bo x B .
2. Chec k continuit y a t th e rela y terminals .
• Ther e shoul d b e continuit y betwee n th e F an d E
terminal s an d betwee n th e B an d C terminals .
• Ther e shoul d b e continuit y betwee n th e A an d C
terminal s whe n powe r an d groun d ar e connect -
e d to th e E an d F terminals .
• Ther e shoul d b e n o continuit y betwee n th e A
an d C terminal s whe n powe r i s disconnected .
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Description
Security Alar m System :
Th e securit y alar m syste m is a n anti-thef t alar m system . I f someon e trie s t o ope n th e trunk , hoo d o r eithe r doo r withou t
th e ignitio n key , o r i f th e roo f i s no t full y latched , th e securit y contro l uni t sense s a signa l fro m th e sensor s an d activate s
relay s t o flas h th e headlight s an d soun d th e hor n fo r abou t tw o minutes .
SECURIT Y CONTRO LUNITInpu t Test , pag e 23-5 8
RIGH T (HIGH ) HOR N
Test , pag e 23-5 2
Horn s
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 .
Test , pag e 23-5 3
Test, pag e 23-5 3
SECURITY/LEF T (LOW ) HOR N
Test , pag e 23-5 2
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Component Location s
Index (cont'd )
CLUTCH SWITC H (M/ T only )Troubleshooting , pag e 11-12 5in th e 199 7 NS X Servic e Manua l
ACCELERATO R POSITIO N (AP )SENSO RTroubleshooting , pag e 11-11 4in th e 199 7 NS X Servic e Manua l
THROTTL E CABL EInspection/Adjustment , pag e 11-15 0in th e 199 7 NS X Servic e Manua lInstallation , pag e 11-15 0in th e 199 7 NS X Servic e Manua l
PGM-FIMAIN RELA YRelay Testing , pag e 11-14 3in th e 199 7 NS X Servic e Manua lTroubleshooting , pag e 11-14 4in th e 199 7 NS X Servic e Manua lSERVIC E CHEC K CONNECTO R (2P )Self-diagnosti c Procedure spage 11-3 8 in th e 199 7 NS X Servic e Manua l
THROTTL E VALV ECONTRO L MOTO R RELA YTroubleshooting , pag e 11-11 2in th e 199 7 NS X Servic e Manua l
ENGINE CONTRO L MODUL E (ECM )Self-diagnosti c Procedures , pag e 11-3 8in th e 199 7 NS X Servic e Manua lTroubleshooting , pag e 11-6 1in th e 199 7 NS X Servic e Manua l
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3-15
T
ITEMMETRICENGLISH
ELECTRICALBattery
Starter
Alternator
Fuses
In the under-dash fuse box
In the under-hood fuse/relay box
In the engine compartment
fuse/relay box
Headlights, high, low
Front turn signal lights
Front parking lights
Rear turn signal lights
Brake/Taillights
Taillights
Front side marker lights
Rear side marker lights
Back-up lights
License plate lights
Gauge lights
Indicator lights
Glove box and fuse lights
Ceiling lights
Trunk lights
Door courtesy lights
Footwell light
Illumination and indicator lights
High mount brake light12 V – 52AH/5HR
12 V – 55AH/5HR
12 V – 1.4 kW
12 V – 120 A
7.5 A, 10 A, 15 A
7.5 A, 10 A, 15 A, 20 A, 30 A, 40 A, 50 A
10 A, 20 A, 30 A, 40 A, 120 A
12 V – 65 W/35 W (HID)
12 V – 45 CP
12 V – 5 W
12 V – 45 CP
12 V – 32/2 CP
12 V – 2 CP
12 V – 3 CP
12 V – 3 CP
12 V – 32 CP
12 V – 8 W
12 V – 3.0 W, 1.4 W
12 V – 1.4 W, 1.96 W
12 V – 3.4 W
12 V – 8 W
12 V – 3.4 W
12 V – 3.4 W
12 V – 5 W
12 V – 1.4 W, 0.84 W
12 V – 0.91 W, LED
LED
TIRE
M/T
A/T
BRAKE SYSTEM
Front: 215/40 R17 83Y Rear: 255/40 R17 94Y165/80 D 16 (Folding spare tire)
Power assisted self-adjusting
ventilated disc
58.0/38.8 cm
28.99/6.01 sq in
Mechanical expanding, rear two wheel
brakes
WHEEL
ALIGNMENTCamber Front
Rear
Caster
Toe Front
Rear–0 °20 ’
–1 °30 ’
8 °
Out 3.5 mm Out 0.14 in
In 4.0 mm In 3/16 in
NOTES
Size
Type, front and rear
Pad and lining surface area: front/rear
Parking brake type
*04-NSX (61SW004)SEC03(01-16) 9/22/04 1:49 PM Page 3-15
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Engine Coolant Refilling and Bleeding

CAUTION: When pouring engine coolant, be sure to

shut the relay box lid and not let coolant spill on the

electrical parts or the paint. If any coolant spills, rinse it

off immediately.

NOTE:

• Perform this maintenance when the engine is cool.

• Before replacing the coolant, turn the ignition ON,

slowly turn the climate control temperature knob to

90° and turn off the ignition. This will allow the

coolant in the heater to drain out with the rest of the

system.
1. Open the hood, the rear window and the engine

cover.

2. Remove the cover protecting the water pipes and

shift cables on the underside of the car.

3. Before removing the expansion tank cap, first

loosen the cap to lower pressure.

CAUTION: Do not remove the expansion tank cap

when engine is hot. The coolant is under pressure

and may blow out and scald you. Open the cap

slowly when the engine is cool.

4. Loosen the drain plug in the bottom of the radiator,

and drain the coolant.

5. Remove the two drain bolts from the water pipes,

and drain the coolant.

WASHERS

Replace.

DRAIN BOLTS

15 N-m (1.5 kgf-m, 11 Ibf-ft)
DRAIN HOLE
DRAIN PLUGProCarManuals.com

System Description

System Connectors [Front Compartment and Under-dash] (cont'd)

FLOOR

WIRE

HARNESS

UNDER-HOOD

FUSE/RELAY

BOX

FRONT

COMPARTMENT

WIRE

HARNESS
UNDER-DASH

FUSE

BOX

SIDE

WIRE

HARNESSProCarManuals.com

System Description

System Connectors [Front Compartment and Under-dash] (cont'd)

UNDER-HOOD

FUSE/RELAY

BOX

SUB RELAY

BOX A

FRONT

COMPARTMENT

WIRE

HARNESS
UNDER-DASH

FUSE

BOX
SIDE

WIRE

HARNESS
FLOOR

WIRE

HARNESSProCarManuals.com

Engine Control Module (ECM) Reset Procedure

Either of the following actions, will reset the ECM.

Using the OBD II scan tool or Honda PGM Tester to clear the ECM's memory.

NOTE: See the OBD II scan tool or Honda PGM Tester user's manuals for specific operating instructions.

Turn the ignition switch OFF. Remove the CLOCK (7.5 A) fuse from the under-hood fuse/relay box for 10 seconds.

UNDER-HOOD

FUSE/RELAY BOX
CLOCK

(7.5 A) FUSE

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

1. Remove the SCS Service Connector if it is connected. If the SCS service connector is connected and there are no

DTCs stored in the ECM, the MIL will stay on when the ignition switch is turned on.

2. Do the ECM Reset Procedure.

3. Turn the ignition switch OFF.

4. Disconnect the OBD II scan tool or Honda PGM Tester from the Data Link Connector (16P).

IV. Known-Good ECM Substitution

The ECM is part of the immobilizer system. If you substitute a known-good ECM, the ECM will have a different immo-

bilizer code. In order for the engine to start, you must rewrite the immobilizer code with the Honda PGM Tester.

(cont'd)ProCarManuals.com

Troubleshooting

Engine Control Module Terminal Arrangement

ECM CONNECTOR A (26P)

ECM CONNECTOR A (26P)
Wire side of female terminals

NOTE: Standard battery voltage is 12 V.

Terminal

number

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

20

21

22

23

24

25

26
Wire

color

BRN

RED

BLU

BLK/YEL

GRN/BLK

GRN

BLU

RED/BLU

GRY

LTGRN

PNK

BLK

YEL/BLK

YEL

BLK/RED

WHT/BLU

ORN

PNK/BLU

RED/YEL

GRN/RED

ORN/BLK

BRN

BLK

BRN/BLK
Terminal name

INJ1 (No. 1 FUEL INJECTOR)

INJ2 (No. 2 FUEL INJECTOR)

INJ3 (No. 3 FUEL INJECTOR)

VSV (EVAP CONTROL CANIS-

TER VENT SHUT VALVE)

FLR1 (FUEL PUMP RELAY)

ESOL (EGR CONTROL

SOLENOID VALVE)

MIL (MALFUNCTION

INDICATOR LAMP)

ACC (A/C CLUTCH RELAY)

FS02SHTC (FRONT SEC-

ONDARY HEATED OXYGEN

SENSOR HEATER CONTROL)

RS02SHTC (REAR SEC-

ONDARY HEATED OXYGEN

SENSOR HEATER CONTROL)

IGN COIL1 (No. 1 IGNITION

COIL part of IGNITION

CONTROL MODULE)

PG1 (POWER GROUND)

IGP1 (POWER SOURCE)

INJ4 (No. 4 FUEL INJECTOR)

INJ5 (No. 5 FUEL INJECTOR)

INJ6 (No. 6 FUEL INJECTOR)

2WBS (EVAP BYPASS

SOLENOID VALVE)

IABCS (IAB CONTROL

SOLENOID VALVE)

PCS (EVAP PURGE CONTROL

SOLENOID VALVE)

FP02SHTC (FRONT PRIMARY

HEATED OXYGEN SENSOR

HEATER CONTROL)

RP02SHTC (REAR PRIMARY

HEATED OXYGEN SENSOR

HEATER CONTROL)

IGN COIL2 (No. 2 IGNITION

COIL part of IGNITION

CONTROL MODULE)

PG2 (POWER GROUND)

LG1 (LOGIC GROUND)
Description

Drives No. 1 fuel injector

Drives No. 2 fuel injector

Drives No. 3 fuel injector

Drives EVAP control canister vent

shut valve

Drives fuel pump relay

Drives EGR control solenoid

valve

Drives MIL

Drives A/C clutch relay

Drives front secondary heated

oxygen sensor heater

Drives rear secondary heated

oxygen sensor heater

Sends ignition pulse

Ground for the ECM power circuit

Power source for the ECM control

circuit

Drives No. 4 fuel injector

Drives No. 5 fuel injector

Drives No. 6 fuel injector

Drives EVAP bypass solenoid

valve

Drives IAB control solenoid valve

Drives EVAP purge control

solenoid valve

Drives front primary heated

oxygen sensor heater

Drives rear primary heated

oxygen sensor heater

Sends ignition pulse

Ground for the ECM power circuit

Ground for the ECM control

circuit
Signal

With engine running: pulses

With ignition switch ON (II):

battery voltage

0 V for two seconds after turning ignition

switch ON (II), then battery voltage

With EGR operating during driving with

fully warmed up engine: duty controlled

With EGR not operating: battery voltage

With MIL turned ON: 0V

With MIL turned OFF: battery voltage

With compressor ON: 0 V

With compressor OFF: battery voltage

With ignition switch ON (II): battery

voltage

With fully warmed up engine running: 0 V

With ignition switch ON: battery voltage

With fully warmed up engine running:

pulses

With ignition switch ON (II): 0 V

With engine running: pulses

Less than 1.0 V at all times

With ignition switch ON (II): battery voltage

With ignition switch OFF: 0 V

With engine running: pulses

With ignition switch ON (II): battery

voltage

With engine speed below 4,800 rpm:

battery voltage

With engine speed above 4,800 rpm: 0 V

With engine running, engine coolant

below 153°F (67°C): battery voltage

With engine running, engine coolant

above 153°F (67°C): 0 V

With ignition switch ON (II): battery

voltage

With fully warmed up engine running: 0 V

With ignition switch ON (II): battery

voltage

With fully warmed up engine running: 0 V

With ignition switch ON (II): 0 V

With engine running: pulses

Less than 1.0 V at all times

Less than 1.0 V at all timesProCarManuals.com

Troubleshooting

Engine Control Module Terminal Arrangement (cont'd)

ECM CONNECTOR F (26P)
Wire side of female terminals

NOTE: Standard battery voltage is 12 V.

*: M/T

Terminal

number

1

2

3

4

6

7

8

9

10

10*

11

12

13

14

15

16

17

18

19

20

21

22

24
Wire

color

YEL/WHT

GRN/WHT

BRN

RED

GRY

LT

GRN/BLK

LT

GRN/RED

LTGRN

BLU/ORN

BLU/ORN

BLU/BLK

YEL/RED

BLU/RED

YEL/WHT

GRN/WHT

GRN/WHT

RED/WHT

BLU

BLU/YEL

GRN/YEL

LT GRN/YEL

WHT/YEL

RED/BLU
Terminal name

VCC1

(SENSOR VOLTAGE)

SG1 (SENSOR GROUND)

IMO CODE (IMMOBILIZER

CODE)

FLR2 (FUEL PUMP RELAY 2)

BKSW2 (BRAKE SWITCH 2)

CCRESSW (CRUISE

CONTROL RESUME SWITCH)

CC SETSW (CRUISE

CONTROL SET SWITCH)

CC MSW (CRUISE

CONTROL MAIN SWITCH)

CC ATSSW (CRUISE

CONTROL A/T GEAR

POSITION SWITCH)

CC CLSW (CRUISE

CONTROL CLUTCH SWITCH)

CCIL (CRUISE CONTROL INDI-

CATOR LIGHT)

AP2 (ACCELERATOR

POSITION SENSOR CIRCUIT 2)

AP1 (ACCELERATOR

POSITION SENSOR CIRCUIT 1)

VCC3 (SENSOR VOLTAGE)

SG3 (SENSOR GROUND)

BKSW1 (BRAKE SWITCH 1)

MTSL (REVERSE LOCKOUT

RELAY OUT)

VREF (REFERENCE VOLTAGE)

VT SOLF (FRONT VTEC

SOLENOID VALVE)

VT SOLR (REAR VTEC

SOLENOID VALVE)

ATSDL B (A/T Fl DATA LINE B)

ATSDL (A/T Fl. DATA LINE A)

TCSSDL (TCS DATA LINE)
Description

Provides sensor voltage

Sensor ground

Detects immobilizer signal

Drives fuel pump relay

Detects brake switch 2 signal

Detects resume switch signal

Detects set switch signal

Power source for the cruise

control system

Detects A/T gear position switch

signal

Detects clutch switch signal

Drives cruise control indicator

light

Detects accelerator position

sensor circuit 2 signal

Detects accelerator position

sensor circuit 1 signal

Provides sensor voltage

Sensor ground

Detects brake switch 1 signal

Drives reverse lockout relay

Provides reference voltage to

TCM

Drives front VTEC solenoid

valve

Drives rear VTEC solenoid valve

Detects data from the TCM

Sends data to the TCM

Interface for TCS control unit
Signal

With ignition switch ON (II): about 5 V

With ignition switch OFF: 0 V

With engine at low rpm: battery voltage

With engine at high rpm: 0 V

With brake pedal released and cruise

control main switch ON: battery voltage

With brake pedal depressed: 0 V

With resume switch released: 0 V

With resume switch depressed: battery

voltage

With set switch released: 0 V

With set switch depressed: battery

voltage

With cruise control main switch ON:

battery voltage

With cruise control main switch OFF: 0 V

In , or position: 0 V

In any other position: approx. 8 V

With clutch pedal released: approx. 8 V

With clutch pedal depressed: 0 V

With cruise control ON: 0 V

With cruise control OFF: battery voltage

With accelerator fully open: about 4.5 V

With accelerator fully closed: about 0.5 V

With accelerator fully open: about 4.5 V

With accelerator fully closed: about 0.5 V

With ignition switch ON (II): about 5 V

With ignition switch OFF: 0 V

With brake pedal released: 0 V

With brake pedal depressed: battery

voltage

With vehicle speed above 13 mph

(20 km/h): 0 V

With vehicle speed below 9 mph

(15 km/h): battery voltage

With ignition switch ON (II): about 5 V

With ignition switch OFF: 0 V

With engine at low rpm: 0 V

With engine at high rpm: battery voltage

With engine at low rpm: 0 V

With engine at high rpm: battery voltage

With engine running: pulses

With engine running: pulses

With engine running: pulsesProCarManuals.com