Honda Accord 2008 Manual page 1098

V6
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Automatic Transmission
System Description (cont'd)
Hydraulic Flow (cont'd)
2 P o s i t i o n
L i n e p r e s s u r e (1) r e g u l a t e d b y t h e r e g u l a t o r v a l v e f l o w s t o s h i f t s o l e n o i d v a l v e s . T h e P C M s w i t c h e s t h e s h i f t s o l e n o i d
v a l v e s O N a n d O F F . T h e c o n d i t i o n s o f t h e s h i f t s o l e n o i d v a l v e s a n d t h e p o s i t i o n s o f t h e s h i f t v a l v e s a r e a s f o l l o w s :
• S h i f t s o l e n o i d v a l v e A is O N , a n d o p e n s t h e s h i f t s o l e n o i d v a l v e A p r e s s u r e p o r t ( S A ) ; s h i f t v a l v e A m o v e s t o t h e
r i g h t s i d e , a n d s h i f t v a l v e D r e m a i n s t o t h e l e f t s i d e .
• S h i f t s o l e n o i d v a l v e B is t u r n e d O N , a n d c l o s e s t h e s h i f t s o l e n o i d v a l v e B p r e s s u r e p o r t ( S B ) ; s h i f t v a l v e B a n d s h i f t
v a l v e E r e m a i n o n t h e l e f t s i d e .
• S h i f t s o l e n o i d v a l v e C is t u r n e d O F F , a n d o p e n s t h e s h i f t s o l e n o i d v a l v e C p r e s s u r e p o r t ( S C ) ; s h i f t v a l v e C m o v e s t o
t h e r i g h t s i d e , a n d s h i f t v a l v e D r e m a i n s o n t h e l e f t s i d e .
• S h i f t s o l e n o i d v a l v e D is O F F , a n d c l o s e s t h e s h i f t s o l e n o i d v a l v e D p r e s s u r e p o r t ( S D ) .
L i n e p r e s s u r e (4) f r o m t h e m a n u a l v a l v e b e c o m e s 2 n d c l u t c h p r e s s u r e (20) a t s h i f t v a l v e B, v i a s h i f t v a l v e s C a n d A , a n d
f l o w s t o t h e 2 n d c l u t c h . T h e 2 n d c l u t c h is e n g a g e d . L i n e p r e s s u r e (4) f r o m t h e m a n u a l v a l v e a l s o b e c o m e s 1st c l u t c h
p r e s s u r e , a n d f l o w s t o t h e 1st c l u t c h . T h e 1st c l u t c h is a l s o e n g a g e d , b u t n o p o w e r is t r a n s m i t t e d b e c a u s e o f t h e o n e -
w a y c l u t c h .
N O T E : W h e n u s e d , " l e f t " o r " r i g h t " i n d i c a t e s d i r e c t i o n o n t h e h y d r a u l i c c i r c u i t .
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