Test ACURA TL 1995 Service Repair Manual

Fuel Gaug e
Gauge Tes t
1. Chec k th e No . 1 (1 0 A ) fus e in th e under-das h fuse /
rela y bo x befor e testing .
2 . Remov e th e acces s pane l fro m th e floor .
3 . Disconnec t th e 3 P connecto r fro m th e fue l gaug e
sendin g unit .
ACCES S PANE L
3P CONNECTO R
WIRE SID E O F FEMAL E TERMINAL S
4. Connec t th e voltmete r positiv e prob e t o th e No . 2
termina l an d th e negativ e prob e t o th e No . 1 termi -
nal , the n tur n th e ignitio n switc h O N (II) .
Ther e shoul d b e betwee n 5 an d 8 V .
I f th e voltag e is a s specified , g o to ste p 5 .
I f th e voltag e is no t a s specified , chec k for :
— an ope n in th e YEL/BL U o r BL K wire .
— poo r groun d (G701) . 5
. Tur n th e ignitio n switc h OFF .
6 . Attac h a jumpe r wir e betwee n th e No . 1 an d No . 2
terminals , the n tur n th e ignitio n switc h O N (II) .
7 . Chec k tha t th e pointe r o f th e fue l gaug e start s mov -
in g towar d th e "F " mark .
CAUTION : Tur n th e ignitio n switc h OF F befor e th e
pointe r reache s "F " o n th e gaug e dial . Failur e to d o
s o ma y damag e th e fue l gauge .
NOTE : Th e fue l gaug e is a bobbi n (cross-coil ) type ,
henc e th e fue l leve l i s continuousl y indicate d eve n
when th e ignitio n switc h i s OFF , an d th e pointe r
moves mor e slowl y tha n tha t o f a bimeta l type .
I f th e pointe r o f th e fue l gaug e doe s no t mov e a t
all , replac e th e gauge .
I f th e gaug e i s OK , inspec t th e fue l gaug e send -
ing unit .
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Low Fue l Indicato r Syste m
Indicato r Ligh t Tes t
1. Chec k th e No . 1 (1 0 A ) fus e i n th e under-das h fuse /
rela y bo x befor e testing .
2 . Par k th e ca r o n leve l ground .
D o no t smok e whil e workin g o n th e
fue l system . Kee p ope n flam e awa y fro m th e wor k
area . Drai n fue l onl y int o a n approve d container .
3 . Drai n th e fue l int o a n approve d container . The n
instal l th e drai n bol t wit h a ne w washer .
4. Ad d les s tha n 8. 5 (2. 2 U.S.Gal , 1. 8 Imp . Gal ) o f fuel ,
and tur n th e ignitio n switc h O N (II) . Th e low fuel
indicato r ligh t shoul d com e o n withi n fou r minutes .
LOW FUE L INDICATO R LIGH T
If th e ligh t come s o n withi n fou r minutes , g o t o
ste p 7 .
I f th e ligh t doe s no t com e o n withi n fou r min -
utes , g o t o ste p 5 .
5.
6.
Remov e th e fue l tan k acces s pane l fro m th e floor ,
an d disconnec t th e 3 P connecto r fro m th e fue l
gaug e sendin g unit .
Connec t th e No . 1 an d No . 3 terminal s wit h a
jumpe r wire .
If th e ligh t come s on , chec k th e sendin g unit .
If th e ligh t doe s no t com e on , chec k for :
— an ope n i n th e L T GRN/RE D wir e betwee n th e
fue l uni t an d fue l gaug e assembly .
— blow n bulb .
— poo r groun d (G701) .
ACCESS PANE L
©
3P CONNECTO R
7.
L T GRN/RE D
WIR E SID E O F FEMAL E TERMINAL S
Add 4 o f fue l (1. 1 U.S . Gal , 0. 9 Imp.Gal) . Th e ligh t
shoul d g o of f withi n fou r minutes .
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Engine Coolan t Temperatur e (ECT ) Gaug e
Gauge Tes t
1. Chec k th e No . 1 (1 0 A ) fus e in th e under-das h fuse /
rela y bo x befor e testing .
2 . Mak e sur e th e ignitio n switc h i s OFF , the n discon -
nec t th e YEL/GR N wir e fro m th e EC T sendin g unit ,
and groun d it wit h a jumpe r wire .
3.
YEL/GR N WIR E
EC T SENDIN G UNI T
Turn th e ignitio n switc h O N (II) . Chec k tha t th e
pointe r o f th e EC T gaug e start s movin g towar d th e
"H " mark .
CAUTION : Tur n th e ignitio n switc h OF F befor e th e
pointe r reache s "H " o n th e gaug e dial . Failur e t o d o
s o ma y damag e th e gauge .
I f th e pointe r o f th e gaug e doe s no t mov e a t all ,
chec k fo r a n ope n in th e YEL/GR N wire .
I f th e wire s ar e OK , replac e th e EC T gauge .
I f th e EC T gaug e works , tes t th e EC T sendin g
unit.
ECT Sendin g Uni t Tes t
1. Disconnec t th e YEL/GR N wir e fro m th e EC T sendin g
unit .
ECT SENDIN G UNI TYEL/GR N WIR E
2.
POSITIV E TERMINA L
Using a n ohmmeter , measur e th e chang e i n resis -
tanc e betwee n th e positiv e termina l an d th e engin e
(ground ) wit h th e engin e col d an d wit h th e engin e
at operatin g temperature .
3. I f th e obtaine d reading s ar e substantiall y differen t
from th e specification s above , inspec t th e coolan t
leve l an d th e coolin g system . I f th e coolin g syste m
i s OK , replac e th e sendin g unit .
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Brake System Indicator

Parking Brake Switch Test

1. Remove the center console, and disconnect the con-

nector from the switch.

2. Check for continuity between the terminal and body

ground in each switch position according to the table.

BRAKE LEVER

BODY

GROUND

POSITIVE

TERMINAL

NOTE (Canada): If the parking brake switch is OK,

but the brake system indicator does not function,

perform the input test for the daytime running

lights control unit.
Brake Fluid Level Switch Test

1. Remove the reservoir cap. Check that the float

moves up and down freely; if it doesn't, replace the

reservoir cap assembly.

2. Check for continuity between the terminals in each

switch position according to the table.

RESERVOIR CAP

FLOAT

Switch contacts closed

when float drops.

Switch contacts open at

proper fluid level.
UP POSITION
MAGNET
DOWN POSITION

DOWN
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Interlock Syste m
Componen t Locatio n Inde x
SRS component s ar e locate d in thi s area . Revie w th e SR S componen t locations , precautions , an d procedure s in th e SR S
(sectio n 24 ) befor e performin g repair s o r service .
A/T GEA R POSITIO N INDICATO R
Se e pag e 23-11 5
A/ T GEA R POSITIO N SWITC H
Test , pag e 23-14 6
INTERLOC KCONTROLUNITInpu t Test , pag e 23-13 0 KE
Y INTERLOC K SOLENOI D
an d KE Y INTERLOC K SWITC H
(I n th e steerin g loc k assembly )
Test , pag e 23-13 2
SHIF T LOC K SOLENOI D
Test , pag e 23-13 2
Replacement , pag e 23-13 3
PARKING PI N SWITC H
Test , pag e 23-13 4
Replacement , pag e 23-13 4
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Interlock Syste m
Contro l Uni t Inpu t Tes t
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 service .
1 . Disconnec t th e 8 P connecto r fro m th e interloc k contro l unit .
2 . Inspec t th e connecto r an d socke t terminal s t o b e sur e the y ar e al l makin g goo d contact .
I f th e terminal s ar e bent , loos e o r corroded , repai r the m a s necessary , an d rechec k th e system .
I f th e terminal s loo k OK , mak e th e followin g inpu t test s a t th e connector .
— If a tes t indicate s a problem , fin d an d correc t th e cause , the n rechec k th e system .
— If al l th e inpu t test s prov e OK , substitut e a known-goo d contro l unit , an d rechec k th e system . I f th e chec k i s OK ,
th e contro l uni t mus t b e faulty ; replac e it .
NOTE : I f th e shif t loc k solenoi d click s whe n th e ignitio n switc h i s turne d O N (II ) an d yo u ste p o n th e brak e peda l (wit h
the shif t leve r i n ) , th e shif t loc k syste m is electronicall y normal ; i f th e shif t leve r canno t b e shifte d fro m , test th e
A/ T gea r positio n switc h a s describe d o n pag e 23-146 , an d se e sectio n 14 .
INTERLOC K CONTRO L UNI T
8P CONNECTO R
WIRE SID E O FFEMAL E TERMINAL S
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WIRE SID E O F FEMAL E TERMINAL S
Shift Loc k Syste m
Trm l Wir e Test conditio n Test: Desire d resul t Possible caus e if resul t i s no t obtaine d
2
3
6
WHT/GR N
GRN
BLK/BL U
Ignition switc h O N (II )
Brak e peda l pushe d
Ignitio n switc h O N (II )
Brak e peda l an d
accelerato r pushe d a t th e
sam e tim e
Ignitio n switc h O N (II )
Shif t leve r i n Chec
k fo r voltag e t o ground :
Ther e shoul d b e abou t 1 2 V .
Chec k fo r voltag e t o ground :
Ther e shoul d b e 1 V or less .
Chec k fo r voltag e t o ground :
Ther e shoul d b e batter y voltage .
Chec k fo r continuit y t o ground :
Ther e shoul d b e continuity . •
Blow n No . 3 0 (2 0 A ) fus e in th e
under-hoo d fuse/rela y bo x
• Fault y TC M
• Fault y brak e switc h (se e pag e
23-184 )
• Fault y throttl e positio n (TP ) senso r
(se e sectio n 11 )
• A n ope n i n th e wir e
• Blow n No . 1 (1 0 A ) fus e in th e
under-das h fuse/rela y bo x
• Fault y shif t loc k solenoi d
• A n ope n i n th e wir e
• Fault y A/ T gea r positio n switc h
• Poo r groun d
• A n ope n i n th e wir e
Ke y Interloc k Syste m
Trm l Wir e Tes t conditio n Test: Desire d resul t Possible caus e if resul t i s no t obtaine d
1
5
4
6
8
WHT/RE D
WHT/BLU
BLK
BLK/BL U
WHT/BL K
Ignition switc h turne d
to AC C (I ) an d ke y
pushe d i n
Unde r al l condition s
Shift leve r i n
Shif t leve r i n an d
pushed to th e righ t
Shift leve r i n an d
release d
Check fo r voltag e t o ground :
Ther e shoul d b e batter y voltage .
Chec k fo r continuit y t o ground :
Ther e shoul d b e continuity .
Chec k fo r continuit y t o ground :
Ther e shoul d b e continuity .
Chec k fo r continuit y t o ground :
Ther e shoul d b e continuity .
Chec k fo r continuit y t o ground :
Ther e shoul d b e n o continuity .•
Blow n No . 3 0 (2 0 A ) fus e in th e
under-hoo d fuse/rela y bo x
• Fault y steerin g loc k assembl y (ke y
interloc k solenoid )
• A n ope n i n th e wir e
• Poo r groun d (G401 , G404 )
• A n ope n i n th e wir e
• Fault y A/ T gea r positio n switc h
• Poo r groun d
• A n ope n i n th e wir e
• Fault y parkin g pi n switc h
• Poo r groun d (G401 , G404 )
• A n ope n in th e wir e
• Fault y parkin g pi n switc h
• Shor t t o groun d
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Interlock Syste m
Parkin g Pi n Switc h Test/Replacemen t
1. Remov e th e cente r consol e (se e sectio n 20 ).
2 . Disconnec t th e parkin g pi n switc h 2 P connector .
3 . Chec k fo r continuit y betwee n th e terminal s i n eac h
switc h leve r positio n accordin g t o th e table .
SHIFT LEVE R
PARKIN G PI N
SWITC H
2 P CONNECTO R
TERMINAL SID E O F
MAL E TERMINAL S
4. I f necessary, replace th e parkin g pi n switch . 5
. Remov e th e screw , the n remov e th e parkin g pi n
switc h fro m th e bas e bracket .
BASE BRACKE T
SCREW
PARKIN G PI N SWITC H
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Safety Indicato r
Componen t Locatio n Inde x
SRS component s ar e locate d in 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 service .
SAFETY INDICATO R
Troubleshooting , pag e 23-13 8
Inpu t Test , pag e 23-13 9
Bul b Replacement , pag e 23-13 8
CEILIN G LIGH T
Test/Replacement , pag e 23-17 8
FRON T PASSENGER' S DOO R SWITC H
Test , pag e 23-18 0
RIGH T REA R DOO R SWITC H
Test , pag e 23-18 0
BRAK E SWITC H
Test , pag e 23-18 4
Peda l Heigh t Adjustment ,
sectio n 1 9 HIG
H MOUN T BRAK E LIGH T
Bul b Replacement , pag e 23-18 4
TRUN K LIGH T
Test , pag e 23-18 1
DRIVER' S DOO R SWITC H
Test , pag e 23-18 0
LEFT REA R DOO R SWITC H
Test , pag e 23-18 0 TRUN
K LATC H SWITC H
Test/Replacement , pag e 23-18 1
BRAKE LIGH TFAILUR E SENSO R
Test , pag e 23-14 1
Descriptio n
Safety Indicato r System :
Bulb s ar e use d to indicat e whe n th e trun k li d o r a doo r i s no t full y closed , o r whe n a brak e ligh t i s faulty . Th e bulb s wil l remai n
O N fo r abou t tw o second s afte r th e ignitio n switc h ha s bee n turne d O N (II ) t o sho w tha t th e syste m circui t i s functioning .
Brak e Ligh t Bul b Failur e Indicator :
I f al l brak e ligh t bulb s ar e OK , th e indicato r ligh t stay s of f becaus e th e WHT/GR N wir e i s constantl y bein g grounde d b y th e
brak e ligh t failur e sensor . Wit h th e brak e ligh t off , th e ground is provide d throug h th e diode , th e failur e senso r rela y coil , an d
the bul b filaments . Wit h th e brak e ligh t on , bot h relay s in th e sensor , connecte d in series , suppl y ground . I f eithe r o f th e tw o
bulb s is no t working , th e chai n is broke n an d th e WHT/GR N wir e is no t bein g grounded . Th e indicato r ligh t come s on .
SPOTLIGH T
Test/Replacement ,
pag e 23-17 7
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Indicator Inpu t Tes t
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 service .
1 . Remov e th e gaug e assembl y fro m th e dashboar d (se e pag e 23-114 ), an d disconnec t th e 16 P connector s (C612 , C613 )
an d 13 P connecto r (C614 ) fro m th e gaug e assembly .
2 . Inspec t th e connecto r an d socke t terminal s t o b e sur e the y ar e al l makin g goo d contact .
I f th e terminal s ar e bent , loos e o r corroded , repai r the m a s necessary , an d rechec k th e system .
I f th e terminal s loo k OK , mak e th e followin g inpu t test s a t th e connector .
— If an y tes t indicate s a problem , fin d an d correc t th e cause , the n rechec k th e system .
— If al l th e inpu t test s prov e OK , th e printe d circui t boar d mus t b e faulty ; replac e it .
16 P CONNECTO R "B " (C613 )
13 P CONNECTO R "C " (C614 ) 16
P CONNECTO R "A " (C612 )
GAUG E ASSEMBL Y
CONNECTO R "A " (C612) : WIR E SID E O F FEMAL E TERMINAL S
Trml Wir e Test conditio n Test: Desire d resul t Possible caus e if resul t i s no t obtaine d
A9YE L
Ignitio n switc h O N (II ) Check fo r voltag e to ground : Ther e
shoul d b e batter y voltage . •
Blow n No . 1 (1 0 A ) fus e in th e
under-das h fuse/rela y bo x
• A n ope n i n th e wir e
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