Acura 2002 RSX Service Manual page 592

Automatic Tra nsmission
System Description (cont'd)
Hydraulic Flow (cont'dl
E Position: Driving in reverse gear
After starting off in reverse gear, the PcM turns shift solenoid valves A oN. and keeps
B and E oN, and c and D oFF.
Shift solenoid valve A pressure (SA) is applied to the right side of the shift valve A to cover
the port of A,/T clutch
pressure control solenoid valve A pressure, and to uncover the port
of line pressure leading to ihe 4th clutch creating
full line pressure. The 4th clutch is engaged securely with line oiessure.
Reverse Inhibitor Control
while the vehicle is moving forward, the PcM keeps shift solenoid valve E oFF. The
shift valve E covers the port of line
pressure {3') leading to the servo valve reverse position. The servo valve
cannot be shifted to reverse posrtron, and
hydraulic pressure is not applied to the 4th clutch from servo valve for reverse; as a result, power
is not transmrtted to
the reverse direction.
NOTE: When used, "left" or,,right,, indicates direction on the hydraulic circuit.
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5TH
,NO
3RDCLUTCH ACCUMULATOR
TRANSMISSION
FLUID iT I
PRESSUFE r
I\ .,I
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^tfr 1
2 N O
ATT CLUTCH PR€SSURE
CONIROL SOLENOID VALVES
14-60
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