Honda Accord 2008 Manual page 1470

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TPMS
DTC Troubleshooting
DTC 85: F-CAN Communication Failure
N O T E : C h e c k t h e f u e l a n d e m i s s i o n s y s t e m s D T C s w i t h
t h e H D S , a n d t r o u b l e s h o o t t h e E C M / P C M a n d F - C A N
c o m m u n i c a t i o n e r r o r s f i r s t ( 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. 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), t h e n 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) a g a i n .
4 . W a i t a b o u t 5 s e c o n d s .
5. C h e c k f o r D T C s w i t h t h e H D S .
Is DTC
85
indicated?
Y E S — G o t o s t e p 6.
N O — 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 l o o s e
t e r m i n a l s a n d p o o r c o n n e c t i o n s a t t h e T P M S
c o n t r o l u n i t . H
6. T e s t - d r i v e t h e v e h i c l e .
Does
the speedometer
work?
Y E S — G o t o s t e p 10.
N O — G o t o s t e p 7 .
7 . 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).
8. D i s c o n n e c t t h e T P M S c o n t r o l u n i t 2 0 P c o n n e c t o r .
9. T e s t - d r i v e t h e v e h i c l e .
Does
the speedometer
work?
Y E S — C h e c k f o r l o o s e t e r m i n a l s a n d p o o r
c o n n e c t i o n s a t t h e T P M S c o n t r o l u n i t . If n e c e s s a r y ,
s u b s t i t u t e a k n o w n - g o o d T P M S c o n t r o l u n i t
( s e e p a g e 1 8 - 2 5 ) , a n d r e c h e c k . •
10. 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).
1 1 . S h o r t t h e S C S l i n e w i t h t h e H D S .
12. D i s c o n n e c t E C M / P C M c o n n e c t o r A ( 4 9 P ) .
1 3 . D i s c o n n e c t t h e T P M S c o n t r o l u n i t 2 0 P c o n n e c t o r .
14. 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 t h e T P M S c o n t r o l u n i t
2 0 P c o n n e c t o r t e r m i n a l s a n d t h e E C M / P C M
c o n n e c t o r A (49P) t e r m i n a l s i n d i v i d u a l l y ( s e e t a b l e ) .
T e r m i n a l
N a m e
T P M S C o n t r o l
U n i t 2 0 P
C o n n e c t o r
T e r m i n a l
E C M / P C M
C o n n e c t o r A
(49P) T e r m i n a l
C A N L
N o . 11
N o . 4 9
C A N H
N o . 1
N o . 4 8
T P M S C O N T R O L U N I T 2 0 P C O N N E C T O R
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
C A N H ( W H T )
1
I
2
/ \ 4
I
5 | 6
I
7 8 | 9 | 1 0 | .
11 12 13 1415 16
19 20 21
22 23 24
><
25
> r <
26 27
/
29 30 31 3233 34 3536 37 38 39
|40|41 / | / | 4 4 | 4 5 | 4 6 47|48|49|
C A N H ( W H T )
C A N L ( R E D )
E C M / P C M C O N N E C T O R A ( 4 9 P )
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 — C h e c k f o r l o o s e t e r m i n a l s a n d p o o r
c o n n e c t i o n s a t t h e T P M S c o n t r o l u n i t a n d G 5 0 3 . If
n e c e s s a r y , s u b s t i t u t e a k n o w n - g o o d T P M S c o n t r o l
u n i t ( s e e p a g e 1 8 - 2 5 ) , a n d r e c h e c k . •
N O — R e p a i r o p e n i n t h e w i r e b e t w e e n t h e T P M S
c o n t r o l u n i t a n d t h e E C M / P C M . •
N O — 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 ) , a n d
r e c o n n e c t a l l c o n n e c t o r s , t h e n c h e c k a n d
t r o u b l e s h o o t t h e f u e l a n d e m i s s i o n s s y s t e m s
( s e e p a g e 1 1 - 3 ) . •
18-24

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