1996 ACURA RL KA9 Service Repair Manual

Troubleshooting
ABS Indicato r Ligh t Doe s No t Com e O n
Th e AB S indicato r ligh t doe s no t com e o n whe n th e ignitio n switc h is turne d O N
Whe n th e ignitio n switc h i s turne d O N (II) , th e AB S indicator light driv e transisto r i n th e AB S contro l uni t i s activate d b y
self-bia s an d turn s th e AB S indicato r ligh t on .
Possibl e cause s fo r a n AB S indicato r ligh t tha t doe s no t com e on :
Blow n METE R (1 5 A ) fus e o r METE R (7. 5 A ) fus e
Mete r rela y stuc k OF F
Ope n circui t betwee n th e METE R (1 5 A ) fus e an d AB S indicato r ligh t
Ope n circui t betwee n th e METE R (7. 5 A ) fus e an d bod y groun d
Blow n AB S indicato r ligh t bul b
Ope n circui t betwee n th e AB S indicato r ligh t an d AB S contro l uni t
Ope n circui t betwee n th e AB S contro l uni t an d bod y groun d
Poor bod y groun d
Fault y AB S contro l uni t
The AB S indicato r ligh t doe s no t
com e o n whe n th e ignitio n switc h
i s turne d O N (II) .
Chec k th e METE R (1 5 A ) fus e
i n th e under-hoo d fuse/rela y bo x
an d th e METE R (7. 5 A ) fus e in th e
under-das h fuse/real y box . NOTE
: I f th e brak e syste m ligh t come s on , th e
circui t betwee n th e batter y an d gaug e assem -
bly is OK .
Are th e fuse s OK ?Replac e th e fus e an d recheck .
NOTE : Reinstal l th e fuse s i f the y ar e OK . GAUG
E ASSEMBL Y 22 P CONNECTO R
Chec k fo r a n ope n in th e IG 1 cir -
cuit :
1 . Disconnec t th e gaug e assem -
bl y 22 P connector .
2. Tur n th e ignitio n switc h O N (II) .3. Measur e th e voltag e betwee n
th e gaug e assembl y 22 P con -
necto r termina l No . 2 2 an d
bod y ground .
I s ther e batter y voltage ? Mete
r rela y stuc k OFF .
Repai r ope n in th e wir e betwee n
th e METE R (1 5 A ) fus e i n th e
under-hoo d fuse/rela y bo x an d
gaug e assembly .
Repai r ope n in th e wir e betwee n
th e METE R (7. 5 A ) fus e i n th e
under-das h fuse/rela y bo x an d
bod y ground .
Replac e th e under-hoo d fuse /
rela y bo x o r under-das h fuse /
rela y box . (Ope n circui t insid e
th e fuse/rela y box ) Wir
e sid e o f femal e terminal s
Is th e bul b OK ?Replac e th e AB S indicato r ligh t
bulb .
(T o pag e 19-44 )
Chec
k th e AB S indicato r ligh t bul b
i n th e gaug e assembly .
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Troubleshooting
ABS Indicato r Ligh t Doe s No t Com e O n (cont'd )
(From pag e 19-43 )
Chec k th e gaug e assembly :
1. Connec t th e gaug e assembl y22P connector .
2 . Connec t th e gaug e assembl y
30 P connecto r termina l No . 2 2
to bod y groun d wit h a jumpe rwire.
Doe s th e AB S indicato r ligh t
com e on ?
Chec k fo r a n ope n i n th e WAR N
circuit :
1 . Tur n th e ignitio n switc h OFF .
2. Disconnec t th e AB S contro lunit 22 P an d 26 P connectors .3. Tur n th e ignitio n switc h O N (II) .4. Connec t th e AB S contro l uni t
22 P connecto r termina l No . 2 0
o r 26 P connecto r termina l No .
24 t o bod y groun d wit h ajumpe r wire .
Does th e AB S indicato r ligh tcom e on ?
Chec k fo r a n ope n i n th e L-GN D
circuit :
1 . Connec t th e AB S contro l uni t
22 P an d 26 P connectors .
2 . Connec t th e AB S contro l uni t
22 P connecto r termina l No . 2 2
o r 26 P connecto r termina l No .
26 t o bod y groun d wit h ajumpe r wire .
Does th e AB S indicato r ligh t
com e on ? GAUG
E ASSEMBL Y 30 P CONNECTO R
Replac e th e printe d circui t boar d
i n th e gaug e assembly .
Repai r ope n i n th e wir e betwee n
th e gaug e assembl y an d AB S con -
trol unit .
Repai r ope n i n th e tw o wire s
betwee n th e AB S contro l uni t
an d bod y ground .
Repai r poo r groun d ( G 404) . Wir
e sid e o f femal e terminal s
ABS CONTRO L UNI T 22 P CONNECTO R
Wire sid e o f femal e terminal s
Wir
e sid e o f femal e terminal s
JUMPE
R
WIR E
ABS CONTRO L UNI T 26 P CONNECTO R
JUMPER WIR E
JUMPE R WIR E
Chec k fo r loos e AB S contro l uni t
connectors . I f necessary , substi -
tut e a known-goo d AB S contro l
uni t an d recheck .
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ABS Indicato r Ligh t Doe s No t G o Of f (N o DTC )
The AB S indicato r ligh t doe s no t g o of f afte r th e engine is starte d
Whe n n o proble m is foun d durin g th e initia l diagnosis , th e AB S contro l uni t turn s th e AB S indicato r ligh t driv e transisto r
of f t o tur n th e AB S indicato r ligh t off .
Possibl e cause s fo r a n AB S indicato r ligh t tha t doe s no t g o off , bu t n o Diagnosti c Troubl e Cod e (DTC ) i s indicated :
Blow n R/ C MIRRO R (7. 5 A ) fus e
Ope n circui t betwee n th e under-das h fuse/rela y bo x an d AB S contro l uni t
Ope n circui t betwee n th e batter y an d under-hoo d fuse/rela y bo x
Blow n AB S B 2 (1 5 A ) fus e
Ope n circui t insid e th e under-hoo d fuse/rela y bo x
Ope n circui t betwee n th e under-hoo d fuse/rela y bo x an d AB S contro l uni t
Fault y alternato r
Ope n circui t betwee n th e alternato r an d AB S contro l uni t
Shor t t o bod y groun d in th e WAR N circui t betwee n th e AB S indicator light an d AB S contro l uni t
Fault y AB S contro l uni t
Wit h engin e running , AB Sindicato r ligh t i s ON .With th e SC S servic e connec -
to r connecte d (se e pag e 19-40 ),
n o DT C is indicated .
Chec k th e chargin g system :
Star t th e engin e an d chec k th e
chargin g syste m indicato r light .
Does i t g o off ?
Chec k th e IG 2 powe r sourc e fuse :
1. Tur n th e ignitio n switc h OFF .2. Chec k th e R/ C MIRRO R (7. 5 A )
fus e i n th e under-das h fuse /
rela y box .
I s th e fus e OK ?
Chec k th e AB S B 2 (1 5 A ) fus e i n
th e under-hoo d fuse/rela y box .
I s th e fus e OK ?
(T o pag e 19-46 ) Chec
k th e chargin g syste m (se e
sectio n 4) .
Replac e th e fus e an d recheck . UNDER-HOO
D FUSE/RELA Y BO X
NOTE : Reinstal l th e fus e i f i t i s OK .
Replac e th e fus e an d recheck .
NOTE : Reinstal l th e fus e i f i t i s OK .
ABS B 2 (1 5 A ) FUS E
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