Test ACURA TL 1995 Service Manual PDF

Troubleshooting
NOTE: Th e number s in th e tabl e sho w th e troubleshootin g sequence .
Radiator Fa n Contro l Modul e Terminal s
NOTE: Se e sectio n 2 2 fo r th e inpu t test .
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Gauge Assembl y
Componen t Locatio n Inde x
VEHICL E SPEE D SENSO R (VSS )
Replacement , pag e 23-9 8
GAUGE ASSEMBL Y
Bul b Locations , pag e 23-9 5
ENGIN E COOLAN T TEMPERATUR E
(ECT) GAUG E SENDIN G UNI TTest , pag e 23-9 9
ENGIN E OI L PRESSUR E SWITC H
Test , pag e 23-9 8
NOTE : Refer to page 23-110 of the '95-98 Acura 2.5TL
Servic e Manual , P/ N 61SW504 , for the items not shown in
thi s sub-section .
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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 i n th e under-das h fuse /
rela y bo x befor e testing .
2 . Remov e th e engin e cover .
3 . 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 .
4. Tur n 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 to 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.
4. I f th e obtaine d reading s ar e substantiall y differen t
fro m 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 .
3
. Usin g 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 engine
(ground ) wit h th e engin e col d an d wit h th e engin e
a t operatin g temperature .
ECT Sendin g Uni t Tes t
1. Remov e th e engin e cover .
2 . Disconnec t th e YEL/GR N wir e fro m th e EC T sendin g
unit.
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Daytime Runnin g Light s Contro l Uni t Inpu t Tes t (Canada )
Trml Wir e Tes t conditio n Test : Desire d resul t Possibl e caus e if resul t i s no t obtaine d
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Fog Ligh t
Switc h Test/Replacemen t (Wit h TCS )
1. Remov e th e cente r console .
2 . Remov e th e fo g ligh t switc h fro m th e cente r console .
3 . Chec k fo r continuit y betwee n th e terminal s i n eac h switc h positio n accordin g t o th e table .
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Back-up Light s
Test
NOTE : Befor e testing , chec k th e No . 1 (1 0 A ) fus e i n th e
under-das h fuse/rela y box .
1. Chec k whethe r th e back-u p light s g o o n b y turnin g
the ignitio n switc h O N (II ) an d shiftin g th e shif t leve r
• I f th e back-u p light s d o no t g o on , chec k for :
blow n bulb .
faulty A/ T revers e relay ,
poo r groun d (G301 , G502) .
an ope n in th e wire .
• I f th e back-u p light s g o on , g o t o ste p 2 .
2. Wit h th e shif t leve r i n tur n th e ignitio n
switch OFF .
3. Disconnec t th e 10 P connecto r fro m th e A/ T gea r
positio n switch .
4. Chec k fo r continuit y betwee n th e No . 2 an d No . 8
terminal s wit h th e shif t leve r i n
• I f ther e is continuity , g o to ste p 5.
• I f ther e i s n o continuity , replac e th e A/ T gea r
positio n switc h (se e sectio n 14 ).
5 . Mov e th e shif t leve r bac k an d fort h a t th e
an d chec k fo r continuit y betwee n th e No . 2 an d No . 8
terminal s withi n th e rang e o f fre e pla y o f th e shif t
lever .
• I f ther e i s n o continuity , adjus t th e A/ T gea r posi -
tion switc h (se e sectio n 14 ).
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Horns
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 service .
HIGH HOR N
HORN RELA Y
CABLE REE LReplacement , sectio n 2 4
HOR
N SWITCHE S
UNDER-DAS H RELA Y BO XLOW HOR N
Test, page 23-201
Test
, page 23-20 3
Test
, page 23-203
Test, page 23-62
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Power Doo r Lock s
Componen t Locatio n Inde x
REMOT E TRANSMITTE R
Replacement , pag e 23-12 4
FRON T PASSENGER' S DOO R LOC K ACTUATO R RIGH
T REA R DOO R LOC K ACTUATO R
FRONT PASSENGER' SDOOR LOC K SWITC H
DRIVER'S DOO R LOC K
CYLINDE R SWITC H
DRIVER' S DOO R LOC K ACTUATO R
LEF
T REA R DOO R LOC K ACTUATO R
DRIVER' S DOO R
LOC K SWITC H
KEYLES S DOO R LOC K
CONTRO L UNI TInpu t Test , pag e 23-12 2
Descriptio n
This doo r loc k syste m ha s bee n adopte d t o improv e convenienc e an d safety . I f yo u inser t th e ke y i s th e driver' s doo r ke y
cylinder , turn it t o th e unloc k position , and the n pull it ou t immediately , ONLY the driver' s door will unlock . However , if
yo u kee p th e ke y i n th e unloc k positio n fo r on e secon d o r more , AL L door s wil l unlock .
FRONT PASSENGER' S DOO R LOC K
CYLINDE R SWITC H
Test
, pag e 23- 247
Replacement , section 20
Test /Replacement ,
pag e 23-24 9 Test
, pag e 23-24 8
Replacement , section 20 Test
, pag e 23-247
Replacement , section 20
Test , pag e 23-247
Replacement , section 20
Test , pag e 23-24 8
Test , pag e 23-24 6
Replacement , section 20
Test/Replacement ,
pag e 23-249
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Power Doo r Lock s
Contro l Uni t Inpu t Tes t
1. Remov e th e glov e bo x (se e sectio n 20 ).
2 . Disconnec t th e 18 P connecto r fro m th e contro l unit .
3 . 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 .
I f an y tes t indicate s a problem , fin d an d correc t th e cause , the n rechec k th e system .
I f al l th e inpu t test s prov e OK , th e contro l uni t mus t b e faulty ; replac e it .
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Power Doo r Lock s
Contro l Uni t Inpu t Tes t
1. Remov e th e glov e bo x (se e sectio n 20 ).
2 . Disconnec t th e 18 P connecto r fro m th e contro l unit .
3 . 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 .
I f an y tes t indicate s a problem , fin d an d correc t th e cause , the n rechec k th e system .
I f al l th e inpu t test s prov e OK , th e contro l uni t mus t b e faulty ; replac e it .
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