Honda Accord 2008 Manual page 145

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ENGINE
DTC U0029: F-CAN Malfunction (BUS-OFF)
DTC U0100: F-CAN Malfunction (Engine
Mount Control Unit-PCM)
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 (see p a g e 4 - 6 5 ) .
• 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
C A N L I i n e .
1. C h e c k t h e M I L o n t h e g a u g e ( s e e p a g e 1 1 - 2 5 8 ) .
Is the MIL
on?
Y E S — G o t o t h e P G M - F I s y s t e m ' s 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 (see p a g e 11-3).
N O — G o t o s t e p 2.
2. 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).
3. C l e a r t h e D T C w i t h t h e H D 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
U0029
and/or
U0100
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 at 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 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. 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 .
7. M e a s u r e t h e r e s i s t a n c e b e t w e e n 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 t e r m i n a l N o . 12* a n d
N o . 14.
ENGINE M O U N T CONTROL UNIT 16P CONNECTOR
n
n
1
2
3
4
5
6
7
8
9
10
11 12
/
14 15
16
CANL
CANH
( R E D ) * | _ ^ J ( W H T )
W i r e s i d e o f f e m a l e t e r m i n a l s
Is there
about
20 Q or
more?
Y E S — G o t o s t e p 8.
N O — R e p a i r s h o r t i n t h e w i r e ( s ) b e t w e e n 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 t e r m i n a l s N o . 1 2 *
a n d N o . 14, t h e n g o t o s t e p 13.
8. 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 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 t e r m i n a l N o . 14 ( N o . 12)* a n d
b o d y g r o u n d .
ENGINE MOUNT C O N T R O L UNIT 16P CONNECTOR
[>
-r
1
2
3
4
5
6
7
8
9
10
11 12
/
14 15
16
CANL
|
CANH
(RED) *JL
J j W H T )
W i r e 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 t o g r o u n d i n t h e w i r e b e t w e e n
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 t e r m i n a l
N o . 14 ( N o . 12)* a n d b o d y g r o u n d , t h e n g o t o s t e p
13.
N O — G o t o s t e p 9.
( c o n t ' d )
4-97

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