Acura RSX Honda Integra. Manual — part 237
16
R Position: Shifting to R position from P or N position
14-73
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: OFF
D: OFF
E: ON
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
When shifting in the R position, the PCM turns shift solenoid valves B and E ON, and A, C, and D OFF. Shift solenoid
valve B pressure (SB) is applied to the right side of the shift valve B, and shift valve B is moved to left side. Shift
solenoid valve E pressure (SE) is applied to the left side of shift valve E, and shift valve E is moved to the right side.
Line pressure (1) changes to (3) at the manual valve, and flows to the servo valve via the shift valve E. The servo valve
is moved to reverse range position. Movement of the shift valves B and E, and servo valve creates 4th clutch pressure
line between the 4th clutch and the A/T clutch pressure control solenoid valve A. The 4th clutch pressure (40) is
applied to the 4th clutch, and the 4th clutch is engaged gently.
NOTE: When used, ‘‘left’’ or ‘‘right’’ indicates direction on the hydraulic circuit.
(cont’d)
05/06/27 17:49:19 61S6M040_140_0074
17
Hydraulic Flow (cont’d)
R Position: Driving in reverse gear
Reverse Inhibitor Control
14-74
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: OFF
D: OFF
E: ON
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
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 shift valve A to cover the A/T clutch pressure control
solenoid valve A pressure port, and to uncover the line pressure port leading to the 4th clutch creating full line
pressure. The 4th clutch is engaged securely with line pressure.
While the vehicle is moving forward, the PCM keeps shift solenoid valve E remaining OFF. 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 position,
and hydraulic pressure is not applied to 4th clutch from servo valve for reverse; as a result, power is not transmitted to
the reverse direction.
NOTE: When used, ‘‘left’’ or ‘‘right’’ indicates direction on the hydraulic circuit.
05/06/27 17:49:20 61S6M040_140_0075
18
P Position
14-75
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: OFF
D: OFF
E: ON
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 B and E are turned ON, and A, C, and D are turned OFF by the PCM. Line pressure (1) flows to the
shift solenoid valves and A/T clutch pressure control solenoid valve A. Line pressure (3) changes to (3’) at shift valve E,
and flows to the servo valve. The servo valve is moved to reverse/park position. Hydraulic pressure is not applied to
the clutches.
05/06/27 17:49:21 61S6M040_140_0076
01
*01
S6M6A02E10474000000CAAT06
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
↓
Lock-up System
Torque Converter Clutch Lock-up ON (Engaging Torque Converter Clutch)
Torque Converter Clutch Lock-up OFF (Disengaging Torque Converter Clutch)
14-76
Automatic Transmission
System Description (cont’d)
Power flow
The power flows by way of:
Engine
Drive plate
Torque converter cover
Torque converter clutch piston
Damper spring
Turbine
Mainshaft
MAINSHAFT
TURBINE
DAMPER SPRING
TORQUE CONVERTER
CLUTCH PISTON
TORQUE CONVERTER
COVER
To ATF cooler
INLET
OUTLET
MAINSHAFT
TURBINE
TORQUE CONVERTER
COVER
PUMP
To ATF cooler
INLET
Power flow
The power flows by way of:
Engine
Drive plate
Torque converter cover
Pump
Turbine
Mainshaft
STATOR
The lock-up mechanism of the torque converter clutch operates in D position (2nd, 3rd, 4th, and 5th), and in D3
position (2nd and 3rd), and M (sequential sportshift mode) position (3rd, 4th, and 5th). The pressurized fluid is drained
from the back of the torque converter through a fluid passage, causing the torque converter clutch piston to be held
against the torque converter cover. As this takes place, the mainshaft rotates at the same speed as the engine
crankshaft. Together with the hydraulic control, the PCM optimizes the timing and amount of the lock-up mechanism.
When the shift solenoid valve E is turned on by the PCM, shift solenoid valve E pressure switches the lock-up shift
valve lock-up on and off. The A/T clutch pressure control solenoid valve A and the lock-up control valve control the
amount of the lock-up.
Fluid in the chamber between the torque converter cover and the torque converter clutch piston is drained off, and
fluid entered from the chamber between the pump and stator exerts pressure through the torque converter clutch
piston against the torque converter cover. The torque converter clutch piston engages with the torque converter cover;
the torque converter clutch lock-up is ON, and the mainshaft rotates at the same speed as the engine.
Fluid entering from the chamber between the torque converter cover and the torque converter clutch piston passes
through the torque converter and goes out from the chambers between the turbine and the stator, and between the
pump and the stator. As a result, the torque converter clutch piston moves away from the torque converter cover, and
the torque converter clutch lock-up is released; torque converter clutch lock-up is OFF.
05/06/27 17:49:22 61S6M040_140_0077
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