Honda Accord 2008 Manual page 430

Fuel and Emissions Systems
System Description (cont'd)
E C M / P C M Inputs and Outputs at Connector A ( • ) (49P)
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
N O T E : S t a n d a r d b a t t e r y v o l t a g e is a b o u t 12 V .
Terminal
number
W i r e c o l o r T e r m i n a l n a m e D e s c r i p t i o n
S i g n a l
4 0 R E D / Y E L S U B R L Y ( P G M - F I
S U B R E L A Y (LAF))
D r i v e s P G M - F I s u b r e l a y
(LAF)
W i t h i g n i t i o n s w i t c h O N (II): a b o u t 0 V
4 1 B R N L G 3 ( L O G I C G R O U N D ) G r o u n d c i r c u i t f o r E C M /
P C M
Less t h a n 1.0 V at all t i m e s
4 4 RED W E N ( W R I T E E N A B L E
S I G N A L )
D e t e c t s w r i t e e n a b l e s i g n a l W i t h i g n i t i o n s w i t c h O N : a b o u t 0 V
4 5 B L U A C P D (A/C P R E S S U R E
S E N S O R )
D e t e c t s A / C p r e s s u r e
s e n s o r s i g n a l
W i t h A / C s w i t c h O N : a b o u t 1.0—4.8 V
( d e p e n d i n g o n A / C p r e s s u r e )
46 LT G R N S - N E T 5 V ( S E R I A L
C O M M U N I C A T I O N FOR
I M M O B I L I Z E R )
S e n d s s e r i a l
c o m m u n i c a t i o n s i g n a l
W i t h i g n i t i o n s w i t c h O N (II): p u l s e s
W i t h i g n i t i o n s w i t c h O F F : a b o u t 5.0 V
47 * 1 B R N C R M T C L S ( C R U I S E
C L U T C H P E D A L P O S I T I O N
S I G N A L )
D e t e c t s c l u t c h p e d a l
p o s i t i o n s w i t c h s i g n a l
W i t h i g n i t i o n s w i t c h O N (II) a n d c l u t c h p e d a l
p r e s s e d : b a t t e r y v o l t a g e
W i t h i g n i t i o n s w i t c h O N (II) a n d c l u t c h p e d a l
r e l e a s e d : a b o u t 0 V
48 W H T C A N H ( C A N
C O M M U N I C A T I O N S I G N A L
H I G H )
S e n d s c o m m u n i c a t i o n
s i g n a l
W i t h i g n i t i o n s w i t c h O N (II): p u l s e s
49 R E D C A N L ( C A N
C O M M U N I C A T I O N S I G N A L
L O W )
S e n d s c o m m u n i c a t i o n
s i g n a l
W i t h i g n i t i o n s w i t c h O N (II): p u l s e s
* 1 : M / T
11-32