Honda Accord 2008 Manual page 1597

Climate Control Unit Inputs and Outputs
C L I M A T E C O N T R O L U N I T C O N N E C T O R B (12P)
r
1 2 3
/
5
6
7
8
9
10
/
12
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 v i t y 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
1 W H T * 1
P N K * 2
B - C A N HI B - C A N 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
( a b o u t 2.5 V )
2 R E D *
1
B L U * 2
B - C A N L O B - C A N 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
( a b o u t 2.5 V )
3 B L K G N D G r o u n d f o r c l i m a t e c o n t r o l u n i t ( G 4 0 1 )
L e s s t h a n 0.5 V a t a l l t i m e s
5
P U R * 1
Y E L * 2
B L W - G O u t p u t s p o w e r t r a n s i s t o r g a t e 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 b l o w e r
O F F : 0 V . V o l t a g e i n c r e a s e s a s b l o w e r
s p e e d i n c r e a s e s
6 B L U
B L W - V F e e d b a c k s i g n a l o f p o w e r t r a n s i s t o r
d r a i n 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 b l o w e r
O F F : b e t w e e n 5 V a n d 12 V . V o l t a g e
d e c r e a s e s a s b l o w e r s p e e d i n c r e a s e s
7 B R N N A V I S O
C o m m u n i c a t i o n s i g n a l f r o m
n a v i g a t i o n
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
( a b o u t 2.5 V )
8 L T G R N N A V I S I C o m m u n i c a t i o n s i g n a l t o n a v i g a t i o n
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
( a b o u t 2.5 V )
9
RED N A V I C L K C o m m u n i c a t i o n s i g n a l f r o m
n a v i g a t i o n
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
( a b o u t 2.5 V )
10 W H T * 1
R E D * 2
S E N S -
C O M
S e n s o r g r o u n d
L e s s t h a n 0.5 V a t a l l t i m e s
12 B L K
S 5 V
O u t p u t s s e n s o r 5 V
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
5.0 V
* 1 : W i t h n a v i g a t i o n
* 2 : W i t h o u t n a v i g a t i o n
21-59