Low Oil Pressure Indicator Circuit Troubleshooting (Short) - Honda Accord 2008 Manual

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Engine Lubrication
Low Oil Pressure Indicator Circuit Troubleshooting (Short)
J35Z3 engine
1 . C o n n e c t t h e H o n d a D i a g n o s t i c S y s t e m ( H D S ) t o t h e
d a t a l i n k c o n n e c t o r ( D L C ) ( s e e s t e p 2 o n p a g e 1 1 - 3 ) .
2. 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).
3. M a k e s u r e t h e H D S c o m m u n i c a t e s w i t h t h e v e h i c l e
a n d t h e e n g i n e c o n t r o l m o d u l e ( E C M ) . If it d o e s n o t
c o m m u n i c a t e , t r o u b l e s h o o t t h e D L C c i r c u i t
( s e e p a g e 1 1 - 2 5 9 ) .
4 . C h e c k f o r D T C s ( s e e p a g e 1 1 - 3 ) . If a D T C is p r e s e n t ,
d i a g n o s e , a n d r e p a i r t h e c a u s e b e f o r e c o n t i n u i n g
w i t h t h i s t e s t .
5. S t a r t t h e e n g i n e , a n d c h e c k t h e O I L P R E S S U R E
S W I T C H i n t h e P G M - F I D A T A L I S T w i t h t h e H D S .
Is OFF
indicated?
Y E S — R e p l a c e t h e g a u g e c o n t r o l m o d u l e , r e f e r t o
t h e 2 0 0 8 - 2 0 0 9 A c c o r d S e r v i c e M a n u a l ( s e e p a g e
2 2 - 3 2 4 ) . •
N O — G o t o s t e p 6.
6. 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).
7 . D i s c o n n e c t t h e o i l p r e s s u r e s w i t c h c o n n e c t o r .
8 . S t a r t t h e e n g i n e , a n d c h e c k t h e O I L P R E S S U R E
S W I T C H i n t h e P G M - F I D A T A L I S T w i t h t h e H D S .
Is OFF
indicated?
Y E S — 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 g o
t o s t e p 9.
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 ) , t h e n g o
t o s t e p 1 0 .
9 . C h e c k t h e o i l p r e s s u r e s w i t c h ( s e e p a g e 8 - 1 2 ) .
Is the oil pressure
switch
OK?
Y E S — D o t h e o i l p r e s s u r e t e s t ( s e e p a g e 8 - 1 3 ) .
N O — R e p l a c e t h e o i l p r e s s u r e s w i t c h ( s e e p a g e
8 - 1 2 ) . •
10. 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 n d j u m p t h e
S C S l i n e w i t h t h e H D S , 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 L O C K (0).
N O T E : T h i s s t e p m u s t b e d o n e t o p r o t e c t t h e E C M
f r o m d a m a g e .
1 1 . D i s c o n n e c t E C M c o n n e c t o r C ( 4 9 P ) .
1 2 . 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 o i l p r e s s u r e
s w i t c h c o n n e c t o r a n d b o d y g r o u n d .
O I L P R E S S U R E S W I T C H C O N N E C T O R
O P S W
( B L U / Y E L )
W i r e s i d e o f f e m a l e t e r m i n a l
Is there
continuity?
Y E S — R e p a i r s h o r t t o g r o u n d i n t h e w i r e b e t w e e n
t h e o i l p r e s s u r e s w i t c h a n d E C M c o n n e c t o r t e r m i n a l
C 4 5 . B
N O — U p d a t e t h e E C M if it d o e s n o t h a v e t h e l a t e s t
s o f t w a r e ( s e e p a g e 1 1 - 2 8 1 ) , o r s u b s t i t u t e a k n o w n -
g o o d E C M ( s e e p a g e 1 1 - 7 ) , t h e n r e c h e c k . If t h e
s y m p t o m / i n d i c a t i o n g o e s a w a y w i t h a k n o w n - g o o d
E C M , r e p l a c e t h e o r i g i n a l E C M ( s e e p a g e 1 1 - 2 8 2 ) . •
8-8

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