Acura RSX Honda Integra. Manual - part 234
Ｓ６Ｍ６Ａ０２Ｅ１０４１０８０００００ＣＡＡＴ０５
Hydraulic Flow
Distribution of Hydraulic Pressure
14-61
As the engine turns, the ATF pump start operate. Automatic transmission fluid (ATF) is drawn through the ATF strainer
(filter) and discharged into the hydraulic circuit. Then, ATF flowing from the ATF pump becomes line pressure that’s
regulated by the regulator valve. Torque converter pressure from the regulator valve enters the torque converter
through the lock-up shift valve, and it is discharged from the torque converter. The torque converter check valve
prevents torque converter pressure from rising.
The PCM controls the shift solenoid valves ON and OFF. The shift solenoid valve intercepts line pressure from the ATF
pump via the manual valve when the shift solenoid valve is OFF. When the shift solenoid valve is turned ON, line
pressure changes to shift solenoid valve pressure at the shift solenoid valve, then the solenoid valve pressure flows to
the shift valve. Applying shift solenoid pressure to the shift valves moves the position of the shift valve, and switches
the port of the hydraulic circuit. The PCM also controls A/T clutch pressure control solenoid valves A, B, and C. The A/T
clutch pressure control solenoid valves regulate hydraulic pressure, and apply the pressure to the clutches to engage
smoothly. The clutches receive optimum clutch pressure which is regulated by the A/T clutch pressure control
solenoid valves for comfortable driving and shifting under all conditions.
Hydraulic pressure at the port is as follows:
DESCRIPTION OF PRESSURE
DESCRIPTION OF PRESSURE
1
LINE
SB
SHIFT SOLENOID VALVE B
3
LINE
SC
SHIFT SOLENOID VALVE C
3’
LINE
SD
SHIFT SOLENOID VALVE D
4
LINE
SE
SHIFT SOLENOID VALVE E
4’
LINE
10
1ST CLUTCH
4’’
LINE
20
2ND CLUTCH
7
LINE
30
3RD CLUTCH
1A
LINE or A/T CLUTCH PRESSURE CONTROL
SOLENOID VALVE A
40
4TH CLUTCH
1B
LINE
50
5TH CLUTCH
3A
LINE
55
3B
LINE
55’
3C
LINE
56
5A
LINE
57
5B
LINE
90
TORQUE CONVERTER
5C
LINE
91
TORQUE CONVERTER
5D
LINE
92
TORQUE CONVERTER
5E
LINE or A/T CLUTCH PRESSURE CONTROL
SOLENOID VALVE B
93
ATF COOLER
5F
LINE or A/T CLUTCH PRESSURE CONTROL
SOLENOID VALVE A or B
94
TORQUE CONVERTER
5G
A/T CLUTCH PRESSURE CONTROL
SOLENOID VALVE B
95
LUBRICATION
5H
A/T CLUTCH PRESSURE CONTROL
SOLENOID VALVE C
96
TORQUE CONVERTER
5J
A/T CLUTCH PRESSURE CONTROL
SOLENOID VALVE C
97
TORQUE CONVERTER
5K
A/T CLUTCH PRESSURE CONTROL
SOLENOID VALVE C
99
SUCTION
5L
A/T CLUTCH PRESSURE CONTROL
SOLENOID VALVE C
X
DRAIN
5N
A/T CLUTCH PRESSURE CONTROL
SOLENOID VALVE C
HX
HIGH POSITION DRAIN
SA
SHIFT SOLENOID VALVE A
AX
AIR DRAIN
(cont’d)
PORT
NO.
PORT
NO.
A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE A
A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE A
A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE B
A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE C
05/06/27 17:49:07 61S6M040_140_0062