fuse box ACURA RL KA9 1996 Service Manual PDF

Troubleshooting
DTC 52 : Moto r Stuc k OF F
Whe n th e vehicl e starts , th eAB S indicato r conie s on .Wit h th e SC S servic e connec -
to r connecte d (se e pag e
19-119 ), DT C 52 is indicated .
Check th e AB S MOTO R (4 0 A ) fus ein th e under-hoo d fuse/rela y box ,and reinstal l th e fus e if i t i s OK .
Is th e fus e OK ?
Chec k th e AB S UNI T (7. 5 A ) fus e
in th e under-hoo d fuse/rela y box ,and reinstal l th e fus e if i t i s OK .
I s th e fus e OK ?
Chec k th e pum p moto r rela y (se e
sectio n 23 ).
I s th e rela y OK ?
Chec k th e moto r circuit :
Connec t th e pum p moto r rela y
connecto r termina l No . 3 to No . 4
wit h a jumpe r wir e fo r a moment .
Does th e pum p moto r operate ?
Chec k fo r a n ope n in th e MOTO R
circuit :
1 . Disconnec t th e pum p moto r
connector .2. Connec t th e pum p moto rrelay connecto r termina l No .3 to No . 4 wit h a jumpe r wire .3. Measur e th e voltag e betwee n
th e pum p moto r connecto r
terminal No . 1 an d bod yground .
Is ther e batter y voltage ?
(T o pag e 19-135 ) Replac
e th e fus e an d recheck .
NOTE : Connec t th e pum p moto r rela y
connecto r termina l No . 3 to No . 4 fo r a
moment , an d rechec k th e fuse . I f th e fus e
i s blown , chec k fo r a shor t t o bod y
groun d i n th e moto r powe r sourc e circuit .
Replac e th e fus e an d recheck .
NOTE: Connec t th e pum p moto r rela y
connecto r termina l No . 3 to No . 4 fo r a
moment , an d rechec k th e fuse . I f th efus e i s blown , chec k fo r a shor t t o bod y
groun d i n th e MC K circuit .
Replac e th e pum p moto r relay .
PUMP MOTO R RELA Y CONNECTO R
Chec k th e PM R circuit .
(T o pag e 19-136 )
Repai r ope n in th e wir e betwee n
th e under-hoo d fuse/rela y bo x
an d th e pum p motor .
Terminal sid e o f femal e terminal s
PUM
P MOTO R CONNECTO R
JUMPE
R WIR E
Termina l sid e o f femal e terminal s
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DTC 53 : Moto r Stuc k O N
Wit h th e ignitio n switc h O N
(II) , th e AB S indicato r doe s
not g o off .Wit h th e SC S servic e connec -
to r connecte d (se e pag e
19-119 ), DT C 53 is indicated .
Chec k tha t th e pum p moto r oper -
ate s wit h th e ignitio n switc h OFF .
Doe s th e pum p moto r operate ?
Remov e th e AB S UNI T (7. 5 A ) fus e
i n th e under-hoo d fuse/rela y box .
I s th e fus e OK ?
Chec k fo r a n ope n i n th e MC K
circuit :1. Tur n th e ignitio n switc h O N (II) .
2 . Measur e th e voltag e betwee n
th e under-hoo d fuse/rela y bo x
7P connecto r termina l No . 3an d bod y ground .
I s ther e abou t 1 1 V ?
Chec k fo r a n ope n in th e MOTO R
circuit:1. Reinstal l th e AB S UNI T (7. 5 A )
fus e i n th e under-hoo d fuse /
rela y box .
2 . Disconnec t th e pum p moto r
connector .3. Measur e th e voltag e betwee n
termina l No . 1 an d bod y
ground .
I s ther e abou t 1 1 V ?
Chec k fo r a n ope n in th e MOTO R
GN D circuit :
Measur e th e voltag e betwee n th e
pum p moto r connecto r termina l
No. 1 an d No . 2 .
Is ther e abou t 1 1 V ?
(To pag e 19-138 )
Replac e th e pum p moto r relay .
(Pum p moto r rela y stuc k ON. )
Replac e th e fus e an d recheck .
UNDER-HOO D FUSE/RELA Y BO X7P CONNECTO R
Wire sid e o f femal e terminal s
Repai r ope n in th e wir e betwee n
th e under-hoo d fuse/rela y bo x
an d th e AB S contro l unit .
PUMP MOTO R CONNECTO R
Termina l sid e o f femal e terminal s
Repai r ope n in th e wir e betwee n
th e under-hoo d fuse/rela y bo x
an d th e pum p motor .
Repai r ope n in th e wir e betwee n
th e pum p moto r an d bod y
ground .Repair poo r groun d (G251) .
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DTC 54 : Fail-saf e Rela y
With th e ignitio n switc h O N
(II) , th e AB S indicato r doe s
not g o off .With th e SC S servic e connec -
to r connecte d (se e pag e
19-119 ), DT C 5 4 is indicated .
Check th e AB S (2 0 A ) fus e i n th eunder-hoo d fuse/rela y box , an d
reinstal l th e fus e if i t i s OK .
I s th e fus e OK ?
Replace th e fus e an d recheck .
NOTE : I f th e fus e i s blow n afte r th e fail -
saf e rela y i s on , chec k fo r a shor t t o
bod y groun d i n th e wir e betwee n th e
fail-saf e relay , pum p moto r rela y an d
modulato r unit .
Wire color s o f fail-saf e rela y connector :BRN/BLK, WHT/GRN , BLK , YEL/GR N
Is th e rela y OK ?
Replace th e fail-saf e relay .
Chec k fo r a n ope n in th e + B cir -
cuit :
Measur e th e voltag e betwee n th efail-saf e rela y connecto r termina lNo. 2 an d bod y ground .
FAIL-SAF E RELA Y CONNECTO R
Is ther e batter y voltage ? Repai
r ope n in th e wir e betwee n
th e under-hoo d fuse/rela y bo x
an d th e fail-saf e relay . Termina
l sid e o f femal e terminal s
Chec k fo r a n ope n in th e solenoi d
powe r sourc e circuit :
1 . Connec t th e fail-saf e rela y
connecto r termina l No . 1 to
No . 2 wit h a jumpe r wire .2. Disconnec t th e modulato r uni t
connector .
3 . Measur e th e voltag e betwee n
th e modulato r uni t connecto r
terminal No . 1 0 an d bod yground . MODULATO
R UNI T CONNECTO R
I s ther e batter y voltage ?
(T o pag e 19-140 ) Repai
r ope n in th e wir e betwee n
th e fail-saf e rela y an d th e modu -
lato r unit . Termina
l sid e o f femal e terminal s
JUMPE
R WIR E
Chec
k th e fail-saf e rela y (se e
sectio n 23).
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Troubleshooting
DTC 54 : Fail-saf e Rela y (cont'd )
(From pag e 19-139 )
Chec k fo r a shor t t o powe r i n th e
solenoi d powe r sourc e circuit :
1 . Remov e th e jumpe r wir e fro m
th e fail-safe relay connector .
2 . Measur e th e voltag e betwee n
th e modulato r uni t connecto r
terminal No . 1 0 an d bod yground .
I s ther e batter y voltage ?
Chec k fo r a shor t t o powe r i n th e
FS R circuit :1. Disconnec t th e AB S contro lunit 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 termina l No . 2 1 an d bod y
ground .
I s ther e batter y voltage ?
Chec k fo r a shor t t o bod y groun d
i n th e FS R circuit :
Chec k fo r continuit y betwee n th e
AB S contro l uni t 22 P connecto rterminal No . 2 1 an d bod y ground .
I s ther e continuity ?
Chec k fo r a n ope n i n the FSR
GN D circuit :
Chec k fo r continuit y betwee n th e
fail-saf e rela y connecto r termina l
No . 3 an d bod y ground .
I s ther e continuity ?
Check fo r a n ope n in th e FS R cir -cuit :1. Connec t th e fail-saf e rela yconnecto r terminal s No . 3 an dNo. 4 wit h a jumpe r wire .
2 . Chec k fo r continuit y betwee n
th e AB S contro l uni t 22 P con -
necto r termina l No . 2 1 an d
bod y ground .
I s ther e continuity ?
I f th e proble m occur s again ,
replac e th e AB S contro l unit . Repai
r shor t t o powe r i n th e wir e
betwee n th e fail-saf e relay , mod -
ulator uni t an d th e under-hoo dfuse/relay box .
Termina l sid e o f femal e terminal s
ABS CONTRO L UNI T 22 P CONNECTO R
Repai r shor t t o powe r i n th e wir e
betwee n th e AB S contro l uni tand th e fail-saf e relay .Wire sid e o f femal e terminal s
Repair shor t t o bod y groun d in
th e wir e betwee n th e AB S con -
tro l uni t an d th e fail-saf e relay .
FAIL-SAF E RELA Y CONNECTO R
Repair ope n in th e wir e betwee n
th e fail-saf e rela y an d bod y
ground .
Termina l sid e o f femal e terminal s
AB S CONTRO L UNI T 22 P CONNECTO R
Repai r ope n i n th e wir e betwee n
th e AB S contro l uni t an d th e fail -
saf e relay .
Wire sid e o f femal e terminal s
MODULATO
R UNI T CONNECTO R
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Component Locations

SERVICE CHECK CONNECTOR (2P)

ABS CONTROL UNIT

ECT SENSOR

TCS CONTROL VALVE

SENSOR

RIGHT-FRONT

WHEEL SENSOR

TCS CONTROL

VALVE ACTUATOR
LEFT-REAR

WHEEL SENSOR

GAUGE ASSEMBLY

ECU (PCM) (20 A) FUSE

UNDER-HOOD FUSE/RELAY BOX

BATTERY (120 A) FUSE
UNDER-HOOD RELAY BOX C

FAIL-SAFE RELAY

IG SW (50 A) FUSE

METER (15 A) FUSE
METER RELAY
TCS (15 A) FUSE
STOP/HORN

'96 - 98 models: (15 A) FUSE

'99 model: (20 A) FUSE
UNDER-HOOD FUSE/RELAY BOX
UNDER-HOOD RELAY BOX C

LEFT-FRONT WHEEL SENSOR
POWERTRAIN

CONTROL MODULE (PCM)
STEERING ANGLE SENSOR

RIGHT-REAR WHEEL SENSOR

TCS CONTROL UNIT

TCS/CRUISE SWITCH

UNDER-DASH FUSE/RELAY BOX

UNDER-DASH FUSE/RELAY BOX

METER (7.5 A) FUSE

TCS INDICATOR LIGHTProCarManuals.com

Troubleshooting
TCS Indicato r Ligh t Doe s No t Com e O n
Th e TC S indicato r ligh t doe s no t com e o n whe n ignitio n switc h i s turne d O N (II) .
The TC S indicato r ligh t doe s no t
com e o n whe n ignitio n switc h is
turne d O N (II) .
Chec k th e METE R (1 5 A ) fus e in th e
under-hoo d fuse/rela y bo x an d
METE R (7. 5 A ) fus e i n th e under -
das h fuse/rela y box .
Ar e th e fuse s OK ?
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
body ground .
Is ther e batter y voltage ?
Is th e bul b OK ?
Chec k th e gaug e assembly :
1 . Connec t th e gaug e assembl y
22 P connector .
2 . Connec t th e gaug e assembl y
22 P connecto r termina l No . 7
t o bod y groun d wit h a jumpe r
wire .
Doe s th e TC S indicato r ligh t
com e on ?
T o pag e 19-16 3 NOTE
: Al l indicato r light s excep t th e chargin g
system indicato r ligh t wil l no t com e o n whe none o f thes e fuse s i s blown .
Replac e th e fuse(s ) an d recheck .
NOTE : Reinstal l th e fuse s if the y ar e OK . GAUG
E ASSEMBL Y 22 P CONNECTO R
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 .
Mete r rela y stuc k OFF .
Replac e th e under-hoo d fuse /
relay bo x o r under-das h fuse /relay box .
(Ope n circui t insid e th e fuse /
rela y box ) Wir
e sid e o f femal e terminal s
Replac e th e TC S indicato r ligh t
bulb.
JUMPE R WIR E
Replac e th e printe d circui t boar d
i n th e gaug e assembly .
Chec
k th e TC S indicato r ligh t bul b
i n th e gaug e assembly .
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TCS Contro l Valv e Actuato r
Diagnosti c Troubl e Cod e 5- 4 : Initia l Moto r Operatio n Diagnosi s
5-5 : Moto r Operatio n (1 ) Diagnosi s
5-6 : Moto r Operatio n (2 ) Diagnosi s
5-7 : Ove r Limi t Moto r Curren t Diagnosi s
5-8 : Moto r Drive r Ope n Diagnosi s
5-9 : Unde r Limi t Moto r Curren t Diagnosi s
5-10: Moto r Drive r Shorte d Diagnosi s
With engin e running , TC Sindicato r ligh t i s ON .
Wit h th e SC S servic e connec -
to r connecte d (se e pag e
19-159 ), DT C 5-4 , 5-5 , 5-6 , 5-7 , 5-8 ,5-9 and/o r 5-1 0 ar e indicated .
Chec k th e TC S (1 5 A ) fus e i n th e
under-hoo d fuse/rela y box .
I s th e fus e OK ?
Replace th e fus e an d recheck .
NOTE : Reinstal l th e
fus e i f i t i s OK .
Chec k fo r a n ope n i n th e IG 1 cir -
cuit:1. Tur n th e ignitio n switc h O N (II) .2. Measur e th e voltag e betwee n
th e fail-saf e rela y connecto r ter -
mina l No . 4 an d bod y ground .
NOTE: Star t th e engine , an d rechec k th efuse . I f th e fus e i s blown , chec k fo r ashor t t o bod y groun d in th e VP M circui tbetwee n th e fail-saf e rela y an d TC S con -trol unit .
FAIL-SAF E RELA Y CONNECTO R
Wire sid e o f femal e terminal s
I s ther e batter y voltage ? Repai
r ope n i n th e wir e betwee n
th e EC U (2 0 A ) fus e an d fail-saf e
relay .
Chec k th e fail-saf e rela y (se e
sectio n 23).
I s th e rela y OK ?
Replac e th e fail-saf e relay .TCS CONTRO L UNI T 20 P CONNECTO R
FSR (BLK/WHT )
Check fo r a n ope n in th e FS R cir -cuit :1. Tur n th e ignitio n switc h O N (II) .2. Measur e th e voltag e betwee nthe TC S contro l uni t 20 P con -necto r termina l No . 6 an d bod yground .Wire sid e o f femal e terminal s
I s ther e batter y voltage ?
T o pag e 19-18 8 Repai
r ope n i n th e wir e betwee n
th e fail-saf e rela y an d TC S con -
trol unit .
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Component Locations

SERVICE CHECK CONNECTOR (2P)

RIGHT-REAR WHEEL SENSOR

VSA CONVERTER UNIT

VSA MODULATOR

CONTROL UNIT

TCS CONTROL

VALVE SENSOR

RIGHT-FRONT

WHEEL SENSOR
PRECHARGE

PUMP MOTOR
STEERING

ANGLE SENSOR

YAW RATE/LATERAL

ACCELERATION SENSOR

TCS CONTROL VALVE

ACTUATOR

UNDER-HOOD

RELAY BOX C
UNDER-HOOD

FUSE/RELAY BOX
VSA OFF SWITCH

UNDER-DASH FUSE/RELAY BOX

LEFT-FRONT WHEEL SENSOR
LEFT-REAR

WHEEL SENSOR

GAUGE ASSEMBLY

ABS INDICATOR

VSA SYSTEM INDICATOR
UNDER-HOOD FUSE/RELAY BOX

STOP/HORN

(20 A) FUSE

BRAKE SYSTEM INDICATOR

VSA ACTIVATION INDICATOR

UNDER-DASH FUSE/RELAY BOX
TCS

(15 A) FUSE

VSA

(20 A) FUSE

METER

(15 A) FUSE

ECU

(20 A) FUSE

METER

(7.5 A) FUSE
BATTERY

(120 A) FUSE

VSA MOTOR (40 A) FUSE

IG SW (50 A) FUSE

UNDER-HOOD RELAY BOX C

FAIL-SAFE RELAY

GAUGE RELAY
PCM

R/C MIRROR

(7.5 A) FUSEProCarManuals.com

ABS Indicato r Doe s No t Com e O n
Chec k th e indicato r powe r sourc e
circuit :
Turn th e ignitio n switc h O N (II) .
Doe s th e brak e syste m indica -
to r com e on ?
Chec k th e VS A contro l unit :
1. Tur n th e ignitio n switc h OFF .2. Disconnec t th e VS A contro lunit 42 P connector .3. Tur n th e ignitio n switc h O N (II) .
Doe s th e AB S indicato r com e on ?
Chec k th e AB S indicator :
1. Tur n th e ignitio n switc h OFF .2. Chec k th e AB S indicato r bul b in
th e gaug e assembly .
Is th e bul b OK ?
Chec k fo r a shor t t o bod y groun d
i n th e AB S circuit :
1 . Disconnec t th e gaug e assem -
bly 30 P connector .2. Chec k fo r continuit y betwee nterminal No . 6 an d bod yground .
Is ther e continuity ?
(T o pag e 19-212 ) Gaug
e rela y stuc k OFF .
Blow n METE R (1 5 A ) fus e in th e
under-hoo d fuse/rela y box .
Blow n METE R (7. 5 A ) fus e i n
th e under-das h fuse/rela y box .
Repai r ope n in th e wir e betwee n
th e METE R (1 5 A ) fus e an d th e
gaug e assembly .
Repai r ope n in th e wir e betwee n
th e METE R (7. 5 A ) fus e an d bod y
ground .Replac e th e under-hoo d fuse /relay bo x o r under-das h fuse /relay box . (Ope n circui t insid ethe box. )
Check fo r loos e terminal s i n th e
VS A contro l uni t 42 P connector .
I f necessary , substitut e a known -
goo d VS A modulator-contro l
unit , an d recheck .
Replac e th e AB S indicato r bulb .
GAUG E ASSEMBL Y 30 P CONNECTO R
Wir e sid e o f femal e terminal s
Repai r shor t t o bod y groun d in th e
wir e betwee n th e gaug e assembl y
an d th e VS A contro l unit .
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ABS Indicato r Doe s No t G o Of f
Chec k th e VS A (2 0 A ) fus e i n th e
under-hoo d fuse/rela y box , an d
reinstal l th e fus e i f i t i s OK .
I s th e fus e OK ?
Chec k th e R/ C MIRRO R (7. 5 A ) fus e
i n th e under-das h fuse/rela y box ,
an d reinstal l th e fus e if i t i s OK .
I s th e fus e OK ?
Chec k fo r a n ope n in th e + B FS R
circuit :1. Disconnec t th e VS A contro lunit 42 P connector .2. Measur e th e voltag e betwee ntermina l No . 6 an d bod yground .
Is ther e batter y voltage ?
I s ther e batter y voltage ?
Chec k fo r a n ope n in th e GN D cir -
cuit :1. Tur n th e ignitio n switc h OFF .2. Chec k fo r continuit y betwee nthe VS A contro l uni t 42 P con -necto r termina l No . 5 an d bod yground .
Is ther e continuity ?
(To pag e 19-214 ) Replac
e th e fuse , an d recheck . I f
th e fus e i s blown , chec k fo r a
shor t t o bod y groun d in thi s fus e
circuit . I f th e circui t i s OK , replac e
the VS A modulator-contro l unit .
Replac e th e fuse , an d recheck . I f
th e fus e is blown , chec k fo r a shor t
t o bod y groun d in thi s fus e circuit .
VSA CONTRO L UNI T 42 P CONNECTO R
Repai r ope n i n th e wir e betwee n
th e VS A (2 0 A ) fus e an d th e VS A
contro l unit .
Repai r ope n i n th e wir e betwee n
th e R/ C MIRRO R (7. 5 A ) fus e an d
the VS A contro l unit .
Repai r ope n in th e wir e betwee nthe VS A contro l uni t an d bod yground .
Repai r poo r groun d (G251) .
Chec
k fo r a n ope n i n th e IG 2 cir -
cuit :
1. Tur n th e ignitio n switc h O N (II) .2. Measur e th e voltag e betwee nthe VS A contro l uni t 42 P con -necto r termina l No . 2 3 an d
bod y ground .
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