Honda Accord 2008 Manual page 634

V6
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PGM-FI System
DTC Troubleshooting (cont'd)
DTC P2610: ECM/PCM Ignition Off Internal
Timer 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. 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. 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
P2610
indicated?
Y E S — G o t o s t e p 4.
N O — 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 . 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 . •
4 . U p d a t e t h e E C M / P C M if it d o e s n o t h a v e t h e l a t e s t
s o f t w a r e ( s e e p a g e 1 1 - 2 8 1 ) , o r 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 ) .
5. 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
P2610
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
r e c h e c k . 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 P2627: Rear A/F Sensor (Bank 1,
Sensor 1) LABEL Circuit Low Voltage
DTC P2630: Front A/F Sensor (Bank 2,
Sensor 1) LABEL Circuit Low Voltage
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 ) .
• I n f o r m a t i o n m a r k e d w i t h a n a s t e r i s k (*) a p p l i e s t o t h e
f r o n t b a n k ( B a n k 2 ) .
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. 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 P o r N ) 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 f o r 2 m i n u t e s .
4 . 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
P2627
and/or
P2630*
indicated?
Y E S — G o t o s t e p 5.
N O — 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 A / F s e n s o r ( S e n s o r 1) a n d t h e P C M . •
5. 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).
6. J u m p t h e S C S l i n e w i t h t h e H D S .
7. D i s c o n n e c t P C M c o n n e c t o r C ( 4 9 P ) .
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