Honda Accord 2008 Manual page 714

V6
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Electronic Throttle Control System
DTC Troubleshooting (cont'd)
DTC P2127: APP Sensor B (TP Sensor E)
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 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 h e c k A P P S E N S O R B 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
0.2 V or
less?
Y E S — G o t o s t e p 3.
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 P P s e n s o r a n d t h e E C M / P C M . •
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).
4 . D i s c o n n e c t t h e A P P s e n s o r 6 P c o n n e c t o r .
5. 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).
6. 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 P P s e n s o r 6 P
c o n n e c t o r t e r m i n a l s N o . 5 a n d N o . 6.
A P P S E N S O R 6P C O N N E C T O R
2 3
5 6
S G 4 ( G R N ) j
| V C C 4 ( B R N )
(V)
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. J u m p t h e S C S l i n e w i t h t h e H D S .
9 . 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 ) .
10. 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 P P s e n s o r 6 P
c o n n e c t o r t e r m i n a l N o . 4 a n d b o d y g r o u n d .
A P P S E N S O R 6P C O N N E C T O R
A
1 2 3 4 5 6
A P S B ( O R N )
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 A P P
s e n s o r a n d t h e E C M / P C M ( A 1 9 ) , t h e n g o t o s t e p 2 4 .
N O — G o t o s t e p 1 1 .
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 7.
N O — G o t o s t e p 17.
11-316

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