Honda Accord 2008 Manual page 772

V6
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Idle Control System
DTC Troubleshooting (cont'd)
DTC P0532: A/C Pressure Sensor Circuit Low
Voltage
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 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 11-3).
1 . S t a r t t h e e n g i n e , a n d let it i d l e .
2 . T u r n t h e b l o w e r s w i t c h o n .
3. T u r n t h e A / C s w i t c h o n .
4 . C h e c k t h e A / C P R E S S U R E S E N S O R i n t h e D A T A
L I S T w i t h t h e H D S .
Is there
about
0.3 V or
less?
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 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 A / C p r e s s u r e s e n s o r a n d t h e E C M / 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 t h e A / C p r e s s u r e s e n s o r 3 P c o n n e c t o r .
7 . 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).
8. C h e c k t h e A / C P R E S S U R E S E N S O R i n t h e D A T A
L I S T w i t h t h e H D S .
Is there
about
0.3 V or
less?
Y E S — G o t o s t e p 10.
N O — G o t o s t e p 9.
9. M e a s u r e t h e v o l t a g e b e t w e e n A / C p r e s s u r e s e n s o r
3 P c o n n e c t o r t e r m i n a l s N o . 1 a n d N o . 3.
A / C P R E S S U R E S E N S O R 3 P C O N N E C T O R
VCC7 ( Y E L )
3
H8)-
1
S G 7
( B L K )
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
5
V?
Y E S — G o t o s t e p 1 8 .
N O — G o t o s t e p 14.
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 . J u m p t h e S C S l i n e w i t h t h e H D S .
1 2 . 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 . 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 A / C p r e s s u r e s e n s o r
3 P c o n n e c t o r t e r m i n a l N o . 2 a n d b o d y g r o u n d .
A / C P R E S S U R E S E N S O R 3 P C O N N E C T O R
A
A C P D ( B L U )
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 i n t h e w i r e b e t w e e n t h e E C M /
P C M ( A 4 5 ) a n d t h e A / C p r e s s u r e s e n s o r , t h e n g o t o
s t e p 2 0 .
N O — G o t o s t e p 2 8 .
11-374

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