Honda Accord 2008 Manual page 574

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PGM-FI System
DTC Troubleshooting (cont'd)
15. C h e c k f o r T e m p o r a r y D T C s o r D T C s w i t h t h e H D S .
Is DTC
P0685
indicated?
Y E S — I f t h e E C M / P C M w a s u p d a t e d , s u b s t i t u t e a
k n o w n - g o o d E C M / P C M ( s e e p a g e 1 1 - 7 ) , t h e n g o t o
s t e p 10. If t h e E C M / P C M w a s s u b s t i t u t e d , g o t o s t e p
1 .
N O — I f t h e E C M / P C M w a s u p d a t e d , t r o u b l e s h o o t i n g
is c o m p l e t e . If t h e E C M / P C M w a s s u b s t i t u t e d ,
r e p l a c e t h e o r i g i n a l E C M / P C M ( s e e p a g e 1 1 - 2 8 2 ) . If
a n y o t h e r T e m p o r a r y D T C s o r D T C s a r e i n d i c a t e d ,
g o t o t h e i n d i c a t e d D T C s t r o u b l e s h o o t i n g . •
DTC P0715: Input Shaft (Mainshaft) Speed
Sensor Circuit Malfunction
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 . S t a r t t h e e n g i n e . H o l d t h e e n g i n e s p e e d a t
3 , 0 0 0 r p m w i t h o u t l o a d ( i n n e u t r a l ) u n t i l t h e
r a d i a t o r f a n c o m e s o n , t h e n l e t it i d l e .
2. T e s t - d r i v e s e v e r a l m i n u t e s .
3. C h e c k t h e M S H A F T S P D i n t h e D A T A L I S T w i t h t h e
H D S .
Is any vehicle
speed
indicated?
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 n p u t s h a f t ( m a i n s h a f t ) s p e e d s e n s o r a n d t h e
E C M . B
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 n p u t s h a f t ( m a i n s h a f t ) s p e e d
s e n s o r 3 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).
11-176

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