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

０５

Hydraulic Flow (cont’d)

N Position

14-62

Automatic Transmission

System Description (cont’d)

TORQUE
CONVERTER

3RD CLUTCH
TRANSMISSION FLUID
PRESSURE
SWITCH

3RD
ACCUMULATOR

3RD
CLUTCH

1ST
CLUTCH

1ST
ACCUMULATOR

4TH
ACCUMULATOR

4TH
CLUTCH

5TH
CLUTCH 5TH

ACCUMULATOR

2ND
ACCUMULATOR

2ND
CLUTCH

2ND CLUTCH
TRANSMISSION FLUID
PRESSURE
SWITCH

30

30

95

30

10

95

10

40

40

50

50

20

95

20

20

91

90

94

LOCK-UP
SHIFT
VALVE

SHIFT
VALVE
C

SHIFT
VALVE
B

SHIFT
VALVE
A

10

3

4

X

57

SERVO CONTROL VALVE

SHIFT VALVE E

SHIFT
VALVE
D

ATF
COOLER

RELIEF VALVE

REGULATOR VALVE

SERVO VALVE

ATF PUMP

MANUAL VALVE

SHIFT
SOLENOID
VALVES

SA

A: OFF

B: ON

C: ON

D: OFF

E: OFF

A

B

C

X

X

X

X

X

SB
SC

SD
SE

55

X

1

X AX

56

X

4’’ X AX

57

4

X AX

X

A/T CLUTCH PRESSURE
CONTROL SOLENOID VALVES

1

1

1

X

X

X X

5A X X 56 5E

57

SC

X

SB

X

X

X X

X

X

SE

X

4

X

SD

X

X

X

X

X

X

X

X

X

55’

94

91

7

55

96 92

SE

93

4

5H

5B

5G

3C

5E

5C

5N

5L

5J

10

40

5F

50 30

1A

1B

55’

5F SA

3C

3’

3

5K

5K

20

5L

5J

1A

55’

57 X 1

93

90

90

93

90

96

92

55 97

93

95

7

99

92

95

1

1

3’

4’

4’’

3

7

1

4

5H 5C

5B 5G

3B

3A

3A

X

1B

5A

5A

5N

4’

AX

HX

AX

HX

TORQUE
CONVERTER
CHECK
VALVE

COOLER
CHECK
VALVE

LOCK-UP
CONTROL
VALVE

IDLER
SHAFT

IDLER GEAR

MAINSHAFT

COUNTERSHAFT

FINAL DRIVE
GEAR
SECONDARY
SHAFT

3B 3A

The PCM controls the shift solenoid valves. The conditions of the shift solenoid valves and positions of the shift valves
are as follows:

• Shift solenoid valve A: OFF, and shift valve A stays on the right side
• Shift solenoid valve B: ON, and shift valve B moves to left side
• Shift solenoid valve C: ON, and shift valve C moves to left side
• Shift solenoid valve D: OFF, and shift valve D stays on the left side
• Shift solenoid valve E: OFF, and shift valve E stays on the left side

Line pressure (1) flows to the shift solenoid valves and the A/T clutch pressure control solenoid valve A, and changes
to A/T clutch pressure control solenoid valve A pressure (55) at the A/T clutch pressure control solenoid valve A. A/T
clutch pressure control solenoid valve A pressure (55) becomes line pressure (1B) at shift valve A, and stops at the
manual valve. Under this condition, hydraulic pressure is not applied to the clutches.

NOTE: When used, ‘‘left’’ or ‘‘right’’ indicates direction on the hydraulic circuit.

05/06/27 17:49:08 61S6M040_140_0063

０６

D Position: 1st gear shifting from N position

14-63

TORQUE
CONVERTER

3RD CLUTCH
TRANSMISSION FLUID
PRESSURE
SWITCH

3RD
ACCUMULATOR

3RD
CLUTCH

1ST
CLUTCH

1ST
ACCUMULATOR

4TH
ACCUMULATOR

4TH
CLUTCH

5TH
CLUTCH 5TH

ACCUMULATOR

2ND
ACCUMULATOR

2ND
CLUTCH

2ND CLUTCH
TRANSMISSION FLUID
PRESSURE
SWITCH

30

30

95

30

10

95

10

40

40

50

20

95

20

20

91

90

94

LOCK-UP
SHIFT
VALVE

SHIFT
VALVE
C

SHIFT
VALVE
B

SHIFT
VALVE
A

10

3

4

X

57

SERVO CONTROL VALVE

SHIFT VALVE E

SHIFT
VALVE
D

ATF
COOLER

RELIEF VALVE

REGULATOR VALVE

SERVO VALVE

ATF PUMP

MANUAL VALVE

SHIFT
SOLENOID
VALVES

SA

A: OFF

B: ON

C: ON

D: OFF

E: OFF

A

B

C

X

X

X

X

X

SB
SC

SD
SE

55

X

1

X AX

56

X

4’’ X AX

57

4

X AX

X

A/T CLUTCH PRESSURE
CONTROL SOLENOID VALVES

1

1

1

50

X

X

X X

5A X X 56 5E

57

SC

X

SB

X

X

X X

X

X

SE

X

4

X

SD

X

X

X

X

X

X

X

X

X

55’

94

91

7

55

96 92

SE

4

5H

5B

5G

3C

5E

5C

5N

5L

5J

10

40

5F

50 30

1A

1B

55’

SA

3C

3’

3

5K

5K

20

5L

5J

1A

55’

57 X 1

93

90

93

90

96

92

55 97

93

95

7

99

92

95

1

1

3’

4’

4’’

3

7

1

4

93

5F

90

5H 5C

5B 5G

3B

3A

3A

X

1B

5A

5A

5N

TORQUE
CONVERTER
CHECK
VALVE

COOLER
CHECK
VALVE

LOCK-UP
CONTROL
VALVE

AX

HX

AX

HX

4’

IDLER
SHAFT

IDLER GEAR

MAINSHAFT

COUNTERSHAFT

FINAL DRIVE
GEAR
SECONDARY
SHAFT

3B 3A

Shift solenoid valves remain the same as in the N position when shifting to the D position from N. The manual valve is
moved to the D position, and switches the port of line pressure (4) leading to the A/T clutch pressure control solenoid
valve C. Hydraulic pressure line to the 1st clutch from the A/T clutch pressure control solenoid valve A is available as
shift solenoid valve A is OFF, B and C stay ON. A/T clutch pressure control solenoid valve A pressure (55) changes to
1st clutch pressure (10) at the shift valve B, and flows to the 1st clutch. The 1st clutch is engaged gently when shifting
to the D position from N.

NOTE: When used, ‘‘left’’ or ‘‘right’’ indicates direction on the hydraulic circuit.

(cont’d)

05/06/27 17:49:09 61S6M040_140_0064

→

−

→

−

→

−

→

−

→

−

→

０７

Hydraulic Flow (cont’d)

D Position: Driving in 1st gear

14-64

Automatic Transmission

System Description (cont’d)

TORQUE
CONVERTER

3RD CLUTCH
TRANSMISSION FLUID
PRESSURE
SWITCH

3RD
ACCUMULATOR

3RD
CLUTCH

1ST
CLUTCH

1ST
ACCUMULATOR

4TH
ACCUMULATOR

4TH
CLUTCH

5TH
CLUTCH 5TH

ACCUMULATOR

2ND
ACCUMULATOR

2ND
CLUTCH

2ND CLUTCH
TRANSMISSION FLUID
PRESSURE
SWITCH

30

30

95

30

10

95

10

40

40

50

20

95

20

20

91

90

94

LOCK-UP
SHIFT
VALVE

SHIFT
VALVE
C

SHIFT
VALVE
B

SHIFT
VALVE
A

10

3

4

X

57

SERVO CONTROL VALVE

SHIFT VALVE E

SHIFT
VALVE
D

ATF
COOLER

RELIEF VALVE

REGULATOR VALVE

SERVO VALVE

ATF PUMP

MANUAL VALVE

SHIFT
SOLENOID
VALVES

SA

A: ON

B: ON

C: ON

D: OFF

E: OFF

A

B

C

X

X

X

X

X

SB
SC

SD
SE

55

X

1

X AX

56

X

4’’ X AX

57

4

X AX

X

A/T CLUTCH PRESSURE
CONTROL SOLENOID VALVES

1

1

1

50

X

X

X X

5A X X 56 5E

57

SC

X

SB

X

X

X X

X

X

SE

X

4

X

SD

X

X

X

X

X

X

X

X

X

55’

94

91

7

55

96 92

SE

4

5H

5B

5G

3C

5E

5C

5N

5L

5J

10

40

5F

50 30

1A

1B

55’

SA

3C

3’

3

5K

5K

20

5L

5J

1A

55’

57 X 1

93

90

93

90

96

92

55 97

93

95

7

99

92

95

1

1

3’

4’

4’’

3

7

1

4

93

5F

90

5H 5C

5B 5G

3B

3A

3A

X

1B

5A

5A

5N

TORQUE
CONVERTER
CHECK
VALVE

COOLER
CHECK
VALVE

LOCK-UP
CONTROL
VALVE

AX

HX

AX

HX

4’

IDLER
SHAFT

IDLER GEAR

MAINSHAFT

COUNTERSHAFT

FINAL DRIVE
GEAR
SECONDARY
SHAFT

3B 3A

The PCM turns shift solenoid valves A ON, and keeps B and C ON, and D and E OFF. Shift solenoid valve A pressure
(SA) is applied to the right side of shift valve A. Shift valve A is moved to the left side to uncover the line pressure port
leading to the 1st clutch, and to cover the A/T clutch pressure control solenoid valve pressure port.

Fluid flows to the 1st clutch by way of:
Line pressure (1)

Shift valve D

Line pressure (1A)

Shift valve A

Line pressure (1B)

Manual valve

Line

pressure (5A)

Shift valve C

Line pressure (5B)

Shift valve B

1st clutch pressure (10)

1st clutch

The 1st clutch pressure (10) is applied to the 1st clutch, and the 1st clutch is engaged securely.

NOTE: When used, ‘‘left’’ or ‘‘right’’ indicates direction on the hydraulic circuit.

05/06/27 17:49:10 61S6M040_140_0065