Honda ACCORD HYBRID 2005 Service Manual page 904

Automatic Transmission
S y s t e m D e s c r i p t i o n ( c o n t ' d )
Hydraulic Flow (cont'd)
R Position: Driving in reverse gear
As the speed of the vehicle reaches the p r o g r a m m e d value, the PCM turns shift solenoid valve A O N , and shift
solenoid valve A uncovers the port of shift solenoid valve A pressure (SA) to the shift valve A. The shift valve A is
m o v e d to the right side to switch the port of line pressure (3') and reverse CPC pressure (3B) leading to the 5th clutch.
Line pressure (3) f l o w s to the manual valve via the servo valve and shift valve A, and becomes 5th clutch pressure (50)
at the manual valve. The 5th clutch pressure (50) f l o w s to the 5th clutch, and the 5th clutch is engaged w i t h the line
pressure mode.
Reverse Inhibitor Control
W h e n the R position is selected w h i l e the vehicle is m o v i n g f o r w a r d , the PCM outputs to keep shift solenoid valve D
OFF so that shift solenoid valve D pressure (SD) is not applied to the reverse control valve. Line pressure (3) stops at
the reverse control valve, and is not applied to the servo valve. No power is transmitted to the reverse direction.
NOTE: W h e n used, " l e f t " or " r i g h t " indicates direction on the hydraulic circuit.
lST-HO U LD C CLUTCH 2ND 2ND CLUTCH 2ND 3RD CLUTCH
Z??„
rit
3 ACCUMULATOR TRANSMISSION
2
££j
CH
TRANSMISSION CLUTCH
4TH CLUTCH 5 T H 4 T H
3 R D
TRANSMISSION CLUTCH CLUTCH
S H I F T S O L E N O I D
j] V A L V E B :
^ O N ( C L O S E )
, S H I F T S O L E N O I D
] V A L V E C :
O F F ( O P E N )
S H I F T S O L E N O I D
1 V A L V E A .
O N ( O P E N )
A / T C L U T C H
P R E S S U R E C O N T R O L
S O L E N O I D V A L V E S
14-68