Acura 2002 RSX Service Manual page 639

DTC P0845: Problem in 3rd Clutch
Transmission Fluid Pressure Switch Circuit
N O T E : R e c o r d a l l f r e e z e d a t a a n d r e v i e w G e n e r a l
Troubleshooting Information (see page 14 3) belore
you troubleshoot.
' 1 .
D i s c o n n e c t t h e 3 r d c l u t c h t r a n s m i s s i o n f l u i d
pressu re switch.
2 . T u r n t h e i g n i t i o n s w i t c h O N ( l l :
3. fvleasure the voltage between PCM connector
t e r m i n a l C 1 0 a n d b o d y g r o u n d
PCM CONNECTOR C {22P)
OP3SW (BLU/WHT)
Wire side of .female terminals
ls therc 5 V?
YES Go to step 4.
NO Check for short to ground in the wire between
P C M c o n n e c t o r t e r m i n a l C 1 0 a n d t h e 3 r d c l u t c h
t r a n s m i s s i o n f l u i d p r e s s u r e s w i t c h l f w i r e i s O K ,
update the PCM if it does not have the latest
software, or substitute a known-good PCM, then
recheck (see page 14-7) lf the symptom/indication
goes away with a known-good PCM, replace the
o r i g i n a l P C M . I
I
2 3
4
5 6
1
B
I
0
12
1 4
15
4. Measure the voltage between the 3rd clutch
transmission fluid pressure switch connector
t e r m i n a l a n d b o d y g r o u n d .
3RD CLUTCH TRANSMISSION FLUID
PRESSURE SWITCH CONNECTOR
Wire side of {emale terminals
Is there 5 V?
YES Go to step 5.
NO Repair open in the wire between PCM
connector terminal C l0 and the 3rd clutch
transmission fluid pressure switch. I
Turn the ignition switch OFF.
lvleasure the resistance between the 3rd clutch
transmission fluid pressure switch connector
t e r m i n a l a n d b o d y g r o u n d .
Is there 40 M Q or more?
NOTE: An open circuit is gteater than 40 MQ.
YES Go to step 7.
NO Replace the 3rd clutch transmission fluid
pressure switch.l
F
l l l
t-
(D
I
5 .
31P""\YJ."3fr
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I n l -F
o
I
Terminal side of male termanals
(cont'd)
14-107