Toyota Celica 1993 AT200 series Repair Manual page 596

For chassis & body
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BR-81
BRAKE SYSTEM _ ANTI_LOCK BRAKE SYSTEM
C o n t i n u e d f r o m p r e v i o u s p a g e
C l e a n c h i o s f r o m t h e s p e e d s e n s o r .
l s t h e r e f o r e i g n m a t e r i a l o r f e r r i c c h i p s o n t h e
s e n s o r t i p ?
F a u l t y d e c e l e r a t i o n s e n s o r o r s e n s o r i n s t a l l a t i o n
fau lty,
Try speed sensor and deceieration sensor opera-
t i o n d i a g n o s i s s y s t e m . l s s e n s o r o p e r a t i o n O K ?
I n s p e c t t h e a c t u a t o r o p e r a t i o n .
l s a c t L r a t o r o p e r a t i o n O K 7
5
A n t i - l o c k b r a k e s y s t e m o p e r a t i o n s i n e f f i c i e n t l y .
P u l l o u t t h e s h o n p i n a n d c o n n e c t t e r m i n a l s T c
a n d E r o I t h e c h e c k c o n n e c t o r .
S e e d i a g n o s t i c t r o u b l e c o d e .
D o e s w a r n i n g l i g h t s h o w t h e n o r m a l c o d e ?
( l g n i t i o n s w i t c h e d O N )
O p e n c i r c u i t i n s t o p l i g h t s w i t c h a n d / o r w i r B h a r n e s s .
l s t h e r e b a t t e r y v o l t a g e b e t w e e n E C U t e r m i n a l
S T P a n d b o d y g r o u n d w h e n d e p r e s s i n g b r a k e
p e d a l 7
lnspect actuator.

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Celica 1993 st20 series

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