2006 ACURA CSX Service Repair Manual

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Page 969 of 2893

ACURA CSX 2006 Service Repair Manual
(#

)
Hydraulic Controls
Valve Bodies
14-53
SHIFT SOLENOID
VALVE DSHIFT SOLENOID
VALVE E
SHIFT SOLENOID
VALVE C
SHIFT SOLENOID
VALVE A
SHIFT SOLENOID
V

Page 970 of 2893

ACURA CSX 2006 Service Repair Manual Î

Î

Hydraulic Controls (cont’d)
Main Valve Body
Regulator Valve Body
14-54Automatic Transmission
System Description (cont’d)
MAIN VALVE BODY
SHIFT VALVE C
COOLER CHECK VALVE
LOCK-UP CO

Page 971 of 2893

ACURA CSX 2006 Service Repair Manual
Î
Regulator Valve
14-55
To TORQUE
CONVERTER
From ATF PUMP
To LUBRICATION and
To RELIEF VALVE
C
B
A
REGULATOR VALVE
ORIFICE
VALVE SPRING
STATOR
TORQUE CONVERTER
REGULATOR VALVE
REGULATOR
SPR

Page 972 of 2893

ACURA CSX 2006 Service Repair Manual

Hydraulic Controls (cont’d)
Servo Body
Accumulator
14-56Automatic Transmission
System Description (cont’d)
SHIFT SOLENOID
VALVE A
SHIFT SOLENOID
VALVE B SHIFT SOLENOID
VALVE C
SHIFT SOLE

Page 973 of 2893

ACURA CSX 2006 Service Repair Manual (#

)
Hydraulic Flow
Distribution of Hydraulic Pressure
Hydraulic Pressure at the Port for use in the hydraulic circuitPortNo. Hydraulic Pressure Port
No.H

(#'

)
Hydraulic Flow
Distribution of Hydraulic Pressure
Hydraulic Pressure at the Port for use in the hydraulic circuitPortNo. Hydraulic Pressure Port
No.Hydraulic Pressure
14-57
As the engine turns, the ATF pump starts to 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 is 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 switches 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 by the
PCM, line pressure changes to shift solenoid valve pressure at the shift solenoid valve, then the shift 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 applies 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.
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 40 4th clutch 1B 50 5th clutch
3A 55 A/T clutch pressure control solenoid valve A 3B 55’ A/T clutch pressure control solenoid valve A
3C 56 A/T clutch pressure control solenoid valve B
5A 57 A/T clutch pressure control solenoid valve C 5B 90 Torque converter
5C 91 Torque converter
5D 92 Torque converter 5E 93 ATF cooler5F 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)
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve B
Line or A/T clutch pressure control solenoid valve A or
B
08/08/21 14:38:29 61SNR030_140_0059
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DYNOMITE -2009-

Page 974 of 2893

ACURA CSX 2006 Service Repair Manual Î
Hydraulic Flow (cont’d)
N Position
14-58Automatic Transmission
System Description (cont’d)
TORQUE
CONVERTER
2ND
ACCUMU-
LATOR2ND
CLUTCH
3RD
CLUTCH 4TH
CLUTCH5TH
CLUTCH
4TH
ACCUMULATOR
TORQ

Î
Hydraulic Flow (cont’d)
N Position
14-58Automatic Transmission
System Description (cont’d)
TORQUE
CONVERTER
2ND
ACCUMU-
LATOR2ND
CLUTCH
3RD
CLUTCH 4TH
CLUTCH5TH
CLUTCH
4TH
ACCUMULATOR
TORQUE
CONVERTER
CHECK
VALVE SHIFT
SOLENOID
VALVES
SHIFT
VALVE D
SHIFT
VALVE A
LOCK-UP
SHIFT
VALVE
LOCK-UP
CONTROL
VALVE
RELIEF VALVE
COOLER
CHECK
VALVE
ATF
COOLER REGULATOR
VALVE SERVO VALVE SERVO
CONTROL
VALVE
MANUAL VALVE ATF PUMP
3RD CLUTCH
TRANSMISSION FLUID
PRESSURE SWITCH
1ST
CLUTCH
A/T CLUTCH
PRESSURE CONTROL
SOLENOID VALVES
3RD
ACCUMULATOR
1ST
ACCUMULATOR
5TH
ACCUMULATOR
2ND CLUTCH
TRANSMISSION FLUID
PRESSURE SWITCH
SHIFT
VALVE
C
SHIFT
VALVE
B SHIFT
VALVE E
20
30 50
SB
1
SA
5B
5A
SC
5K 5B
5C
4
4
3B4
5A
5F SB
55 1
90
94
SE
94
91
96 93
7
55
90
95
90
93
93
99 192
1
95 HX
1B 3
3’ 4
5G
91
X X
X
X
X X
10
97
93 X
95
56 40
50
10
55’ 90 96
X 7 AX
AX
HX
4’’3A
3A
71A
3
3’
3C
5N 5E
3C
5L
5J
SA
40
X 5F
5H
10
1
55
1 56
4’’ 57
4
95
30 30
95
10 40
20
57 X
XX
X
5H 5G 5E5C
X
X 92 X
5N 55’
50 30 1A
5K
92 4’X
5J5L
55’
1
57
SD
XX
SE
X X 3
X
57
SE
1
20
XX 1B 20X
X
3A X X
X
X
X
SC
SD
AX
3B
X 4’
X
X
AX
X
X
AX
X
X
IDLER
SHAFT
COUNTER-
SHAFT
SECONDARY
SHAFT MAINSHAFT IDLER GEAR
FINAL DRIVE
GEAR
A: OFF
B: ON
C: ON
D: OFF
E: OFF
A
B
C
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 remains on the right side
Shift solenoid valve B: ON, and shift valve B moves to the left side
Shift solenoid valve C: ON, and shift valve C moves to the left side
Shift solenoid valve D: OFF, and shift valve D remains on the left side
Shift solenoid valve E: OFF, and shift valve E remains on the left side
Line pressure (1) flows to the shift solenoid valves and A/T clutch pressure control solenoid valve A. Under this
condition, hydraulic pressure is not applied to the clutches.
NOTE: When used, ‘‘left’’ or ‘‘right’’ indicates direction on the hydraulic circuit.
08/08/21 14:38:31 61SNR030_140_0060
ProCarManuals.com
DYNOMITE -2009-

Page 975 of 2893

ACURA CSX 2006 Service Repair Manual Î1st gear shifting from N position
14-59
TORQUE
CONVERTER
2ND
ACCUMU-
LATOR2ND
CLUTCH
3RD
CLUTCH 4TH
CLUTCH5TH
CLUTCH
4TH
ACCUMULATOR
TORQUE
CONVERTER
CHECK
VALVE SHIFT
SOLENOID
VALVES
SHIFT
VAL

Page 976 of 2893

ACURA CSX 2006 Service Repair Manual àµ àµ à µ
àµ àµ à
Î
Hydraulic Flow (cont’d)
Driving in 1st gear in D and S with automatic shift mode
14-60 Automatic Transmission
System Description (cont’d)
TORQUE
CON

àµ àµ à µ
àµ àµ à
Î
Hydraulic Flow (cont’d)
Driving in 1st gear in D and S with automatic shift mode
14-60 Automatic Transmission
System Description (cont’d)
TORQUE
CONVERTER
2ND
ACCUMU-
LATOR2ND
CLUTCH
3RD
CLUTCH 4TH
CLUTCH5TH
CLUTCH
4TH
ACCUMULATOR
TORQUE
CONVERTER
CHECK
VALVE SHIFT
SOLENOID
VALVES
SHIFT
VALVE D
SHIFT
VALVE A
LOCK-UP
SHIFT
VALVE
LOCK-UP
CONTROL
VALVE
RELIEF VALVE
COOLER
CHECK
VALVE
ATF
COOLER REGULATOR
VALVE SERVO VALVE SERVO
CONTROL
VALVE
MANUAL VALVE ATF PUMP
3RD CLUTCH
TRANSMISSION FLUID
PRESSURE SWITCH
1ST
CLUTCH
A/T CLUTCH
PRESSURE CONTROL
SOLENOID VALVES
3RD
ACCUMULATOR
1ST
ACCUMULATOR
5TH
ACCUMULATOR
2ND CLUTCH
TRANSMISSION FLUID
PRESSURE SWITCH
SHIFT
VALVE
C
SHIFT
VALVE
B SHIFT
VALVE E
20
30 50
SB
1
SA
5B
5A
SC
5K 5B
5C
4
4
3B4
5A
5F SB
55 1
90
94
SE
94
91
96 93
7
55
90
95
90
93
93
99 192
1
95 HX
1B 3
3’ 4
5G
91
X X
X
X
X X
10
97
93 X
95
56 40
50
10
55’ 90 96
X 7 AX
AX
HX
4’’3A
3A
71A
3
3’
3C
5N 5E
3C
5L
5J
SA
40
X 5F
5H
10
1
55
1 56
4’’ 57
4
95
30 30
95
10 40
20
57 X
XX
X
5H 5G 5E5C
X
X 92 X
5N 55’
50 30 1A
5K
92 4’X
5J5L
55’
1
57
SD
XX
SE
X X 3
X
57
SE
1
20
XX 1B 20X
X
3A X X
X
X X
SC
SD
AX
3B
X 4’
X
X
AX
X
X
AX
X
X
A: ON
B: ON
C: ON
D: OFF
E: OFF
A
B
C
IDLER
SHAFT
COUNTER-
SHAFT
SECONDARY
SHAFT MAINSHAFT IDLER GEAR
FINAL DRIVE
GEAR
The PCM turns shift solenoid valve A ON, B and C remain ON, and D and E remain 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.
08/08/21 14:39:22 61SNR030_140_0062
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