Honda Accord 2008 Manual page 142

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Active Control Engine Mount (ACM) System
DTC Troubleshooting (cont'd)
17. R e c o n n e c t a l l c o n n e c t o r s .
18. T u r n t h e i g n i t i o n s w i t c h O N (II).
19. C l e a r t h e D T C w i t h t h e H D S .
2 0 . 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
P16C4
indicated?
Y E S — 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 e n g i n e m o u n t c o n t r o l u n i t a n d t h e
d r i v e r ' s u n d e r - d a s h f u s e / r e l a y b o x ( a c t i v e c o n t r o l
e n g i n e m o u n t ( A C M ) c o n t r o l r e l a y ) , t h e n g o t o s t e p
1 .
N O — 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 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 P16C5: Engine M o u n t Actuator Control
Power Circuit Stuck ON
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 s , 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 4 - 6 5 ) .
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 h e c k t h e A C M U N I T S U P P L Y V O L T A G E a n d A C M
R E L A Y C O N T R O L i n t h e D A T A L I S T w i t h t h e H D S .
Does
the ACM
UNIT
SUPPLY
VOLTAGE
indicate
battery
voltage
when
the ACM
RELAY
CONTROL
indicates
OFF?
Y E S — G o t o s t e p 3.
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 e n g i n e m o u n t c o n t r o l u n i t a n d t h e d r i v e r ' s
u n d e r - d a s h f u s e / r e l a y b o x ( a c t i v e c o n t r o l e n g i n e
m o u n t ( A C M ) c o n t r o l r e l a y ) .
3. 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).
4 . D i s c o n n e c t d r i v e r ' s u n d e r - d a s h f u s e / r e l a y b o x
c o n n e c t o r G ( 1 4 P ) .
5. D i s c o n n e c t e n g i n e m o u n t c o n t r o l u n i t 16P
c o n n e c t o r .
4-94

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