Acura CSX. Manual - part 246
＊０８
Shifting between 3rd gear and 4th gear in D and S with automatic shift mode
14-65
TORQUE
CONVERTER
2ND
ACCUMU-
LATOR
2ND
CLUTCH
3RD
CLUTCH
4TH
CLUTCH
5TH
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
3B
4
5A
5F
SB
55
1
90
94
SE
94
91
96
93
7
55
90
95
90
93
93
99
1
92
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
7
1A
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 X
X X
5H
5G
5E
5C
X
X
92
X 5N
55’
50 30
1A
5K
92
4’
X
5J
5L
55’
1
57
SD
X
X
SE
X
X
3
X
57
SE
1
20
X X
1B
20
X
X
3A
X
X
X
X
X
SC
SD
AX
3B
X
4’
X
X
AX
X
X
AX
X
X
A: OFF
B: OFF
C: OFF
D: OFF
E: OFF
A
B
C
IDLER
SHAFT
COUNTER-
SHAFT
SECONDARY
SHAFT
MAINSHAFT
IDLER GEAR
FINAL DRIVE
GEAR
As the speed of the vehicle reaches the programmed value, the PCM turns shift solenoid valve C OFF, and A, B, D, and
E remain OFF. Shift solenoid valve C pressure (SC) in the right side of shift valve C is released. Shift valve C is moved
to the right side uncovering the A/T clutch pressure control solenoid valve B and C pressure ports leading to the 3rd
and 4th clutches. The PCM actuates the A/T clutch pressure control solenoid valves to regulate hydraulic pressure. A/T
clutch pressure control solenoid valve C pressure (57) changes to 3rd clutch pressure (30) at shift valve A. A/T clutch
pressure control solenoid valve B pressure (56) changes to (5G) at shift valve C, and becomes 4th clutch pressure (40)
at shift valve B. The 3rd and 4th clutches are engaged gently.
NOTE: When used, ‘‘left’’ or ‘‘right’’ indicates direction on the hydraulic circuit.
08/08/21 14:39:31 61SNR030_140_0067