Test ACURA TL 1995 Service Manual Online

Troubleshooting
Self-diagnostic Procedure s
The self-diagnosti c functio n o f th e SR S syste m allow s i t t o locat e th e cause s o f syste m problem s an d t o stor e thi s informa -
tio n i n memory . Fo r easie r troubleshooting, this dat a ca n b e retrieve d vi a a dat a lin k circuit .
Whe n yo u tur n th e ignitio n switc h O N (II) , th e SR S indicato r wil l com e on . I f i t goe s of f afte r si x seconds , th e syste m is
normal .
I f ther e i s a n abnormality , th e syste m locate s an d define s th e problem , store s thi s informatio n i n memory , an d turn s
the SR S indicato r ligh t on .
NOTE : Th e dat a wil l remai n i n th e memor y eve n whe n th e ignitio n switc h i s turne d of f o r i f th e batter y i s disconnected .
Whe n yo u connec t th e SC S servic e connecto r t o th e servic e chec k connecto r (2P) , an d tur n th e ignitio n switc h O N (II) ,
th e SR S indicato r ligh t wil l indicat e th e diagnosti c troubl e cod e (DTC ) b y th e numbe r o f blinks .
Afte r readin g an d recordin g th e DTC , procee d wit h th e troubleshootin g fo r thi s code .
Precaution s
Use onl y a digita l multimete r t o chec k th e system . I f it' s no t a Hond a multimeter , mak e sur e it s outpu t i s 1 0 m A (0.0 1 A )
o r les s whe n switche d t o th e smalles t valu e i n th e ohmmete r range . A teste r wit h a highe r outpu t coul d damag e th e
airba g circui t o r caus e accidenta l airba g deploymen t an d possibl e injury -
Wheneve r th e ignitio n switc h i s O N (II) , o r ha s bee n turne d OF F fo r les s tha n thre e minutes , b e carefu l no t t o bum p th e
SR S unit ; th e airbag s coul d accidentall y deplo y an d caus e damag e o r injuries .
Befor e yo u remov e th e SR S mai n harness , disconnec t th e driver' s airba g connecto r an d th e fron t passenger' s airba g
connector . (Connec t th e Shor t connecto r (RED ) t o th e fron t passenger' s airba g connecto r o n a '9 6 model. )
Mak e sur e th e batter y i s sufficientl y charge d (se e sectio n 23 ). I f th e batter y i s dea d o r low , measurin g value s won' t b e
correct .
D o no t touc h a teste r prob e t o th e terminal s i n th e SR S uni t o r harnes s connectors , an d d o no t connec t th e terminal s
wit h a jumpe r wire . Us e onl y th e tes t harnes s an d th e SC S servic e connectors .
For backprobin g spring-loade d loc k typ e connectors , refe r t o pag e 24-11 .
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Reading th e DT C
Whe n th e SR S indicato r ligh t i s on , rea d th e DT C usin g on e o f thes e methods :
A . Connec t th e Hond a PG M Teste r t o th e 16 P Dat a Lin k Connecto r (DLC) , an d follo w th e tester' s prompts . I f th e teste r
indicate s n o DTC , double-chec k b y jumpin g th e servic e chec k connecto r an d watchin g th e SR S indicato r ligh t (se e
page 24-14 ).
DAT A LIN K CONNECTO R (DLC ) (16P )
(cont'd )
24-13
HOND A PG M TESTE R
Troubleshooting
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Erasing th e DT C Memor y
To eras e th e DTC(s ) fro m th e SR S unit , us e a Hond a
PG M Teste r (se e th e Hond a PG M Teste r SR S vehicl e
Syste m Supplement ) o r th e followin g procedure .
1 . Mak e sur e th e ignitio n switc h i s OFF .
2 . Connec t th e SC S servic e connecto r t o th e ME S con -
necto r (2P) . D o no t us e a jumpe r wire .
MEMOR Y ERAS ESIGNAL (MES ) CONNECTO R (2P )[GRY , GRY ] or [GRN , GRN ]SCS SERVIC E CONNECTO R07PAZ-001010 0
3. Tur n th e ignitio n switc h O N (II) .
4. Th e SR S indicato r ligh t come s o n fo r abou t si x sec -
onds an d goe s off . Remov e th e SC S servic e connec -
to r fro m th e ME S connecto r (2P ) withi n fou r second s
afte r th e SR S indicato r ligh t wen t off .
5 . Th e SR S indicato r ligh t come s o n again . Reconnec t
th e SC S servic e connecto r t o th e ME S connecto r
(2P) withi n th e fou r second s afte r th e SR S indicato r
light come s on .
6. Th e SR S indicato r ligh t goe s off . Remov e th e SC S
servic e connecto r fro m th e ME S connecto r (2P )
within fou r seconds .
7. Th e SR S indicato r ligh t indicate s tha t th e memor y is
erase d b y blinkin g tw o times .
8. Tur n th e ignitio n switc h OFF , an d wai t fo r te n sec -
onds .
4 se c o r les sBlinkin g
SRS indicato rlight
MESconnecto r CONNECTE D
terminals D|SCONNECTE D
Troubleshooting Intermitten t
Failures
If ther e wa s a malfunction , bu t i t doesn' t recur , i t wil l b e
store d i n th e memor y a s a n intermitten t failure , an d th e
SR S indicato r ligh t come s on .
Afte r checkin g th e DTC , troubleshoo t a s follows :
1 . Rea d th e DT C (se e "Readin g th e DTC") .
2. Eras e th e DT C memor y (se e "Erasin g th e DT C
Memory") .
3. Wit h th e shif t leve r i n neutral , tur n th e ignitio n switc h
O N (II) , an d le t th e engin e idle .
4 . Th e SR S indicato r ligh t come s o n fo r abou t si x sec -
ond s an d goe s off .
5 . Shak e th e wir e harnes s an d th e connector , tak e a tes t
driv e (quic k acceleration , quic k braking , cornering) ,
and tur n th e steerin g whee l full y lef t an d right , an d
hold i t ther e fo r fiv e t o te n second s t o fin d th e caus e
of th e intermitten t failure .
If th e proble m recurs , th e SR S indicato r ligh t wil l
stay on .
Proble m recurs , ligh t stay s on .
6. I f yo u can' t duplicat e th e intermitten t failure , th e sys -
te m is O K a t thi s time .
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6. Reconnect the airbag connectors.

Front Passenger's Side:

'96 Model:

Attach the short connector (RED) to the connector

holder, then reinstall the glove box.

SHORT CONNECTOR

(RED) /HOLDER

FRONT PASSENGER'S

AIRBAG

3P CONNECTOR
SRS MAIN HARNESS

3P CONNECTOR

'97-98 Models:

Attach the airbag connector to the connector holder,

then install the glove box.

SRS MAIN HARNESS

2P CONNECTOR

FRONT PASSENGER'S

AIRBAG

2P CONNECTOR
Driver's Side:

Connect the driver's airbag 2P connector to the cable

reel 2P connector, then install the access panel on the

steering wheel.

CABLE REEL

2P CONNECTOR

ACCESS PANEL

DRIVER'S AIRBAG

2P CONNECTOR

7. Connect the battery positive cable, then connect the

negative cable.

8. After installing the airbag, confirm proper system

operation:

Turn the ignition switch ON (II); the SRS indicator

light should come on for about six seconds and

then go off.

Make sure both horn buttons work.

Take a test-drive, and make sure the cruise con-

trol switches work.

9. Enter the anti-theft code for the radio, then enter the

customer's radio station presets.ProCarManuals.com

Cable Reel

Replacement (cont'd)

12.
NOTE:

Before installing the steering wheel, the front

wheels should be aligned straight ahead.

Be sure to install the harness wires so that they

are not pinched or interfering with other parts.

After reassembly, confirm that the wheels are

still turned straight ahead and that the steering

wheel spoke angle is correct (road test). If minor

spoke angle adjustment is necessary, do so only

by adjusting the tie-rods, not by removing and

repositioning the steering wheel.

Set the cancel sleeve so that the projections are

aligned as shown.

VERTICAL

CANCEL

SLEEVE

PROJECTIONS

13. Carefully install the cable reel on the steering col-

umn shaft. Then connect the 4P connector to the

cable reel, and connect the 2P connector to the SRS

main harness.

CABLE REEL

CONNECTOR

HOLDER

COMBINATION

SWITCH HARNESS

4P CONNECTOR

CABLE REEL

2P CONNECTOR

SRS MAIN HARNESS
14. Install the steering column covers.

15. If necessary, center the cable reel. (New replace-

ment cable reels come centered.) '97 - 98 Models:

Rotate the cable reel clockwise until it stops. Then

rotate it counterclockwise (approximately two and a

half turns) until the arrow mark on the cable reel

label points straight up.

'96 Model: Rotate the cable reel clockwise until it

stops. Then rotate it counterclockwise (approxi-

mately two turns) until the hole in the white gear

lines up with the window on the cover and the arrow

mark on the cable reel label points straight up.

ARROW MARK

WHITE

GEAR

'96 Model

only:
HOLE

16.
WINDOW

Install the steering wheel, then connect the horn

connector and cruise control set/resume/cancel

switch connector.

STEERING WHEEL

BOLT
HORN CONNECTOR

CABLE REEL

2P CONNECTOR
CRUISE CONTROL

SET/RESUME/

CANCEL SWITCH

CONNECTORProCarManuals.com

17. Tighten the steering wheel bolt to the specified

torque. Then install the driver's airbag.

TORX BOLTS

9.8 N-m (1.0 kgf-m, 7.2 Ibf-ft)

Replace.

Use a Torx T30 bit.

STEERING WHEEL BOLT

38 N-m (3.9 kgf-m, 28 Ibf-ft)
DRIVER'S

AIRBAG

18. Attach the cable reel 2P connector to the connector

holder. Then install the dashboard lower cover.

CONNECTOR

HOLDER

CABLE REEL

2P CONNECTOR

SRS
MAIN

HARNESS

DASHBOARD LOWER COVER
19. Reconnect the driver's airbag 2P connector to the

cable reel 2P connector, and reinstall the access

panel on the steering wheel.

20. Reconnect the battery positive cable, then the nega-

tive cable.

21. After installing the cable reel, confirm proper sys-

tem operation:

Turn the ignition ON (II); the SRS indicator light

should come on for about six seconds and then

go
off.

Make sure both horn buttons work.

Make sure the headlight and wiper switches

work.

Go for a test drive, and make sure the cruise con-

trol switches work.

22. Enter the anti-theft code for the radio, then enter the

customer's radio station presets.ProCarManuals.com

Warning/Caution Label Locations

A: CABLE REEL CAUTION A

REFER TO SERVICE MANUAL FOR DETAILED INSTRUC-

TIONS.

B: DRIVER MODULE DANGER

DANGER

EXPLOSIVE/FLAMMABLE

CONTACT WITH ACID, WATER OR HEAVY METALS SUCH

AS COPPER, LEAD, OR MERCURY MAY PRODUCE HARM-

FUL AND IRRITATING GASES OR EXPLOSIVE COM-

POUNDS. STORAGE TEMPERATURES MUST NOT EXCEED

200°F (100 C). FOR PROPER HANDLING, STORAGE, AND

DISPOSAL PROCEDURES REFER TO SERVICE MANUAL,

SRS SUPPLEMENT.

POISON

CONTAINS POISONOUS SODIUM AZIDE AND POTASSIUM

NITRATE.

FIRST AID

IF CONTENTS ARE SWALLOWED, INDUCE VOMITING. FOR

EYE CONTACT, FLUSH EYES WITH WATER FOR 15 MINUTES.

IF GASES (FROM ACID OR WATER CONTACT) ARE INHALED,

SEEK FRESH AIR. IN EVERY CASE, GET PROMPT MEDICAL

ATTENTION.

KEEP OUT OF REACH OF CHILDREN.
C: DRIVER MODULE WARNING

WARNING

THE AIRBAG INFLATOR IS EXPLOSIVE AND, IF ACCIDEN-

TALLY DEPLOYED, CAN SERIOUSLY HURT OR KILL YOU.

• DO NOT USE ELECTRICAL TEST EQUIPMENT OR PROB-

ING DEVICES. THEY CAN CAUSE ACCIDENTAL DEPLOY-

MENT.

• NO SERVICEABLE PARTS INSIDE. DO NOT DISASSEM-

BLE.

• PLACE AIRBAG UPRIGHT WHEN REMOVED.

• FOLLOW SERVICE MANUAL INSTRUCTIONS CAREFULLY.ProCarManuals.com

Warning/Caution Label Locations

(cont'd)

D: DRIVER INFORMATION (SUNVISOR)

Canada model (98 model)

CAUTION

TO AVOID SERIOUS INJURY:

FOR MAXIMUM SAFETY PROTECTION IN ALL TYPES OF

CRASHES, YOU MUST ALWAYS WEAR YOUR SAFETY

BELT.

DO NOT INSTALL REARWARD FACING CHILD SEATS IN

ANY FRONT PASSENGER SEAT POSITION.

DO NOT SIT OR LEAN UNNECESSARILY CLOSE TO THE

AIRBAG.

DO NOT PLACE ANY OBJECTS OVER THE AIRBAG OR

BETWEEN THE AIRBAG AND YOURSELF.

SEE THE OWNER'S MANUAL FOR FURTHER INFORMA-

TION AND EXPLANATIONS.

THE SRS MUST BE INSPECTED TEN YEARS AFTER IT IS

INSTALLED.

THE DATE OF INSTALLATION IS SHOWN OF THE DRIV-

ER'S DOORJAMB.

E: ASSISTANT INFORMATION

U.S. model

AIRBAG SEE OTHER SIDE.

U.S. model (98 model)

AIRBAG WARNING

FLIP VISOR OVER

F: STEERING COLUMN NOTICE

NOTICE

TO PREVENT SRS DAMAGE, REMOVE STEERING WHEEL

BEFORE REMOVING STEERING SHAFT CONNECTING

BOLT.

G: MONITOR NOTICE

NOTICE

• NO SERVICEABLE PARTS INSIDE.

• REFER TO SERVICE MANUAL FOR DETAILED INSTRUC-

TIONS.

H: SRS CONSOLE/GLOVE BOX INFORMATION

Canada model (95 - 97 model)

AIRBAG INFORMATION

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

• THE SRS MUST BE INSPECTED TEN YEARS AFTER IT IS

INSTALLED. THE DATE OF INSTALLATION IS SHOWN

ON THE CERTIFICATION PLATE, LOCATED ON THE

DRIVER'S DOORJAMB.

• DIAGNOSTIC CHECKS AND REPLACEMENT OF SRS

COMPONENTS MUST BE DONE BY AN AUTHORIZED

DEALER.

• SEE YOUR OWNER'S MANUAL FOR ADDITIONAL SRS

INFORMATION.
I: FRONT SEAT PASSENGER AIRBAG MODULE DANGER

DANGER

EXPLOSIVE/FLAMMABLE

CONTACT WITH ACID, WATER OR HEAVY METALS SUCH

AS COPPER, LEAD OR MERCURY MAY PRODUCE HARM-

FUL AND IRRITATING GASES OR EXPLOSIVE COM-

POUNDS. STORAGE TEMPERATURES MUST NOT EXCEED

200 F (100°C). FOR PROPER HANDLING, STORAGE AND

DISPOSAL PROCEDURES REFER TO SERVICE MANUAL,

SRS SUPPLEMENT.

POISON

CONTAINS POISONOUS SODIUM AZIDE AND POTASSIUM

NITRATE.

FIRST AID

IF CONTENTS ARE SWALLOWED, INDUCE VOMITING.

FOR EYE CONTACT, FLUSH EYES WITH WATER FOR 15

MINUTES. IF GASES (FROM ACID OR WATER CONTACT)

ARE INHALED, SEEK FRESH AIR. IN EVERY CASE, GET

PROMPT MEDICAL ATTENTION.

KEEP OUT OF REACH OF CHILDREN.

WARNING

THE AIRBAG INFLATOR IS EXPLOSIVE AND, IF ACCIDEN-

TALLY DEPLOYED, CAN SERIOUSLY HURT OR KILL YOU.

• DO NOT USE ELECTRICAL TEST EQUIPMENT OR PROB-

ING DEVICES. THEY CAN CAUSE ACCIDENTAL DEPLOY-

MENT.

• NO SERVICEABLE PARTS INSIDE. DO NOT DISASSEM-

BLE.

• PLACE AIRBAG UPRIGHT WHEN REMOVED.

• FOLLOW SERVICE MANUAL INSTRUCTIONS CAREFULLY.

J: PASSENGER AIRBAG CAUTION

U.S. model (98 model)

WARNING

CHILDREN CAN BE KILLED OR INJURED BY A PASSENGER

AIRBAG.

THE BACK SEAT IS THE SAFEST PLACE FOR CHILDREN

AGES 12 AND UNDER. MAKE SURE ALL CHILDREN USE

SEAT BELTS OR CHILD SEATS.

K: SRS WARNING (HOOD)

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)

THIS VEHICLE IS EQUIPPED WITH DRIVER AND FRONT

SEAT PASSENGER AIRBAGS.

ALL SRS ELECTRICAL WIRING AND CONNECTORS ARE

COLORED YELLOW.

TAMPERING WITH, DISCONNECTING OR USING ELECTRI-

CAL TEST EQUIPMENT ON THE SRS WIRING CAN MAKE

THE SYSTEM INOPERATIVE OR CAUSE ACCIDENTAL FIR-

ING OF THE INFLATOR.

WARNING

THE AIRBAG INFLATOR IS EXPLOSIVE AND, IF ACCIDEN-

TALLY DEPLOYED, CAN SERIOUSLY HURT YOU. FOLLOW

SERVICE MANUAL INSTRUCTIONS CAREFULLY.ProCarManuals.com

Engine Moun t Contro l Syste m
Componen t Locatio n Inde x
ENGIN E CONTRO L
MODUL E (ECM )
Troubleshooting , pag e 5-1 8
ENGINE MOUN T CONTRO L
SOLENOID VALV ETroubleshooting , pag e 5-1 8
FRON T ENGIN E MOUN T
DIAPHRAG M ACTUATO RTest, pag e 5-2 0
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(From pag e 5-18 )
Tes t th e Engin e Moun t Contro l
Solenoi d Valv e Wire :
1 . Rais e th e engin e spee d abov e
1,000 rpm .2. Measur e voltag e betwee n th e
BLK/YE L wir e an d th e GRN /
WHT wire .
ENGIN E MOUN T CONTRO LSOLENOID VALV E CONNECTO R
Is ther e batter y voltage ?
Tes t th e Engin e Moun t an d
Vacuu m Hose :
1 . Tur n th e ignitio n switc h OFF ,
the n disconnec t th e uppe r
vacuu m hos e fro m th e engin e
moun t contro l solenoi d valve ,
an d connec t a vacuu m pump /
gaug e t o th e hose .
2 . Star t th e engine , the n appl y
vacuu m fo r 2 0 seconds .
Doe s th e engin e moun t hol d
vacuum ?
Test th e Engin e Mount :
Releas e th e vacuum , the n appl y
vacuu m again .
I s ther e a noticeabl e chang e in
idl e smoothnes s wit h an dwithou t vacuu m applied ?
Tes t th e Engin e Moun t Contro l
Solenoi d Valve :
1 . Tur n th e ignitio n switc h OFF .
2 . Disconnec t th e lowe r vacuu m
hos e fro m th e engin e moun t
contro l solenoi d valve , an d
connec t a vacuu m gaug e to th e
hose .3. Star t th e engine .
I s ther e manifol d vacuum ? Repai
r shor t t o bod y groun d
i n GRN/WH T wir e betwee n
ECM (A10 ) and th e 2 P con -nector .If th e wir e i s OK , substitut e a
known-goo d EC M an d recheck .
— Replac e th e vacuu m hose .
— Replac e th e engin e mount . TERMINA
L SID E O F FEMAL E
TERMINAL S
ENGINE MOUN TCONTRO L SOLENOI DVALVE
UPPER VACUU MHOSE
Replac e th e engin e mount . VACUU
M PUMP /
GAUGE , 0-3 0 in.Hg .
A973 X - 04 1 - XXXX X
ENGIN E MOUN T
CONTRO L SOLENOI D
VALVE
Repair a s needed . VACUU
M PUMP /
GAUGE , 0-3 0 in.Hg .
A973 X - 04 1 - XXXX X
LOWERVACUU MHOSE
Replac e th e engin e moun t con -
tro l solenoi d valve .
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