1996 ACURA RL KA9 Service Repair Manual

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
ProCarManuals.com

(From pag e 19-134 )
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 batter y voltage ? PUM
P 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 pum p moto r an d bod yground .Repair poo r groun d (G251) .
Replac e th e modulato r unit .
ProCarManuals.com

Troubleshooting
DTC 52 : Moto r Stuc k OF F (cont'd )
(From pag e 19-134 )
Chec k fo r a n ope n in th e PM R cir -
cuit :
1 . Disconnec t th e AB S contro l
unit 12 P connector .2. Connec t th e pum p moto r rela y
connecto r termina l No . 2 to
No . 4 wit h a jumpe r wire .3. Measur e th e voltag e betwee n
th e AB S contro l uni t 12 P con -
necto r termina l No . 1 2 an dbod y ground .
I s ther e batter y voltage ?
Chec k fo r a shor t t o powe r i n th e
PM R circuit :
1 . Remov e th e jumpe r wir e fro m
pum p moto r rela y connector .
2 . Star t th e engine .
3 . Measur e th e voltag e betwee n
th e AB S contro l uni t 12 P con -
necto r termina l No . 1 2 an d
bod y ground . Repai
r ope n in th e wir e betwee n
th e under-hoo d fuse/rela y bo x
and th e AB S contro l unit .
Wire sid e o f femal e terminal s
I s ther e batter y voltage ? Repai
r shor t t o powe r i n 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.
If th e proble m occur s again ,
replac e th e AB S contro l unit .
PUM P MOTO R RELA Y CONNECTO R
JUMPERWIRE
Termina l sid e o f femal e terminal s
AB S CONTRO L UNI T 12 P CONNECTO R
ProCarManuals.com

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) .
ProCarManuals.com