Honda Accord 2008 Manual page 829

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DTC P1078: IMT Valve Stuck in Low RPM
Position
N O T E : B e f o r e y o u t r o u b l e s h o o t , r e c o r d a l l f r e e z e d a t a
a n d a n y o n - b o a r d s n a p s h o t , a n d r e v i e w t h e g e n e r a l
t r o u b l e s h o o t i n g i n f o r m a t i o n ( s e e p a g e 1 1 - 3 ) .
1 . T u r n t h e i g n i t i o n s w i t c h t o O N (II).
2. C l e a r t h e D T C w i t h t h e H D S .
3. D o t h e I M T T E S T i n t h e I N S P E C T I O N M E N U w i t h
t h e H D S .
Is the result
OK?
Y E S — I n t e r m i t t e n t f a i l u r e , t h e s y s t e m is O K a t t h i s
t i m e . C h e c k f o r p o o r c o n n e c t i o n s o r l o o s e t e r m i n a l s
a t t h e I M T a c t u a t o r a n d t h e E C M . •
N O — G o t o s t e p 4 .
4. T u r n t h e i g n i t i o n s w i t c h t o L O C K (0).
5. D i s c o n n e c t t h e I M T a c t u a t o r 5 P c o n n e c t o r .
6. T u r n t h e i g n i t i o n s w i t c h t o O N (II).
7. C h e c k t h e I M T V A L V E S W i n t h e D A T A L I S T w i t h
t h e H D S .
Is CLOSE
indicated?
Y E S — G o t o s t e p 1 2 .
N O — G o t o s t e p 8.
8. T u r n t h e i g n i t i o n s w i t c h t o L O C K (0).
9. J u m p t h e S C S l i n e w i t h t h e H D S .
10. D i s c o n n e c t E C M c o n n e c t o r B ( 4 9 P ) .
1 1 . C h e c k f o r c o n t i n u i t y b e t w e e n E C M c o n n e c t o r
t e r m i n a l B 1 9 a n d b o d y g r o u n d .
E C M C O N N E C T O R B ( 4 9 P )
I M T M ( W H T / B L K )
3 | 4 | 5 | 6 | 7
11 12 13 14|15 16 17 18 19 20
/
22 23 24
><
25
><
26
/ /
29 30 31 32 33 34
35|36
37 38 39
| 40 | 41
4 2 | X | / | 4 5 | 4 6
AAA
T e r m i n a l s i d e o f f e m a l e t e r m i n a l s
Is there
continuity?
Y E S — R e p a i r s h o r t i n t h e w i r e b e t w e e n t h e E C M
( B 1 9 ) a n d t h e I M T a c t u a t o r , t h e n g o t o s t e p 2 4 .
N O — G o t o s t e p 3 2 .
( c o n t ' d )
11-431

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