1996 ACURA RL KA9 Service Repair Manual

Modulator Functio n Chec kRemova l
NOTE: Thi s inspectio n determine s whethe r th e basi c
brak e syste m continue s t o operat e normall y whe n th e
modulato r uni t high-pressur e sid e i s low .
1 . Reliev e syste m pressur e (se e pag e 19-97 ).
NOTE : Afte r relieving , tighte n th e bleede r t o 1 1 N- m
(1. 1 kgf-m , 8 Ibf-ft) .
BLEEDE R
2. Rais e th e vehicl e of f th e ground .
3. Hav e a n assistan t depres s th e brak e peda l firmly , an d
chec k tha t th e wheel s d o no t rotate . I f th e wheel s
rotate , replac e th e modulato r unit .
4 . Star t th e engin e t o operat e th e pum p motor , the n
ad d brak e flui d a s needed .
NOTE :
I f th e reservoi r empties , blee d th e high-pressur e
brak e fluid .
I f th e pum p moto r operate s fo r 4 0 second s o r
more , th e indicato r ligh t come s on , an d th e
pum p moto r stops . Sto p an d restar t th e engin e
t o operat e th e pum p moto r again .
I f th e AB S indicato r ligh t come s on , remov e th e
AB S B 2 (1 5 A ) fus e fo r 3 second s o r mor e t o
eras e th e DT C afte r servicing .
5 . Afte r th e pum p moto r stops , refil l th e reservoi r t o
th e MA X line .
6. Afte r servicing , mak e sur e th e AB S indicato r ligh t
goe s off . 1
. Disconnec t th e 14 P an d 2 P connectors .
2 . Disconnec t th e si x brak e lines , the n remov e th e
modulato r unit .
From
left-fron tFro
m
right-rea r
2 P CONNECTO R Fro
m
left-rea r
Fromright-fron t
RUBBERMOUNT
14P CONNECTO R
Frommaste r cylinde r
rea r sid e
BRACKE T
8 m m NU T21 N- m (2. 1 kgf- m
1 5 Ibf-ft )
Fro m
maste r cylinde r
fron t sid e
8 m m BOL T
2 2 N- m (2. 2 kgf-m , 1 6 Ibf-ft )
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Modulator Uni t
Installatio n
NOTE: Thi s procedur e is fo r modulato r uni t replacement .
1. Fil l th e modulato r reservoi r t o th e MA X line .
2. Blee d ai r fro m th e suctio n por t i n th e modulato r
unit b y leanin g th e modulato r uni t t o on e sid e slow -
ly (abou t 4 5 degrees ) a s shown .
CAUTION : Afte r bleedin g air , d o no t tur n th e mod -
ulato r uni t upside-dow n o r lea n it excessively .
SUCTION POR T
Abou t 4 5 degree s
3. Instal l th e modulato r uni t i n th e revers e orde r o f
removal .
NOTE : Chec k th e letter s stampe d o n th e modulato r
body , an d connec t th e brak e line s properly . Tighte n
th e flar e nut s t o 1 9 N- m (1. 9 kgf-m , 1 4 Ibf-ft) .
4 . Star t th e engin e to operat e th e pum p motor , the n ad d
brak e flui d a s needed .
NOTE:
If th e pum p moto r operate s fo r 4 0 second s o r
more , th e indicato r ligh t come s on , an d th e pum p
moto r stops . Blee d th e high-pressur e brak e fluid ,
the n remov e th e AB S B 2 (1 5 A ) fus e fo r 3 second s
o r mor e to eras e th e DTC .
If modulato r removal/installatio n i s fo r som e
other reaso n tha n repairin g o r replacin g th e
modulator , th e pum p moto r ma y no t operate . I n
thi s case , ste p 4 an d 5 ar e no t necessary .
5 . Afte r th e pum p moto r stops , refil l th e reservoi r t o
th e MA X line .
6. Mak e sur e th e AB S indicato r ligh t goe s off .
7. Blee d th e conventiona l brak e syste m (se e pag e 19-8 ).
8 . Perfor m AB S functio n tes t (se e pag e 19-95 ).
Wir e Harnes s Replacemen t
1. Remov e th e modulato r uni t (se e pag e 19-99 ).
2 . Remov e th e cover , the n remov e th e wir e harness .
MODULATO R UNI T
SOLENOI D CONNECTO R
SET PLAT E
COVER
WIRE HARNES S
3. Chec k th e number s stampe d o n th e se t plate , an d
connec t eac h connecto r o f th e ne w wir e harnes s t o
th e se t plat e wit h th e correspondin g number .
CAUTION : Thi s ste p is important . Afte r connecting ,
rechec k th e wir e harnes s installation .
CONNECTO R NUMBER
S(Stamped)
SET PLAT E
4. Instal l th e cover .
5 . Perfor m modulato r uni t installation .
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Pump Moto r Replacemen t
The modulato r uni t contain s high-pressur e
brak e fluid . B e sur e t o reliev e syste m pressur e uni t
befor e removin g th e pum p motor .
1 . Reliev e syste m pressur e (se e pag e 19-97 ).
2 . Remov e th e modulato r uni t (se e pag e 19-99 ).
3 . Replac e th e pum p motor .
MODULATO R UNI T
O-RIN G
Replace .
PUMP MOTO R
8 m m FLANG E BOL T
Replace .
NOTE: Us e 8 m m bolt sin th e pum p moto r set .15 N- m (1. 5 kgf-m , 1 1 Ibf-ft )
4. Perfor m modulato r uni t installatio n (se e pag e 19-100 ).
Reservoi r Replacemen t
1. Remov e th e modulato r uni t (se e pag e 19-99 ).
2 . Replac e th e reservoir .
O-RINGReplace .RESERVOI RReplace.
O-RIN G
Replac e
O-RING
Replace .
JOINTReplace .
3. Perfor m modulato r uni t installatio n (se e pag e 19-100 ).
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