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1 Position
The PCM controls the shift solenoid valves and the A/T clutch pressure control solenoid valves. The conditions of the
shift solenoid valves and the positions of shift valves are as follows:
• Shift solenoid valve A is turned ON, and shift valve A stays on the right side.
• Shift solenoid valve B is turned ON, and shift valve B stays on the right side.
• Shift solenoid valve C is turned ON, and shift valve C moves to the right side by modulator pressure (6).
The PCM also controls A/T clutch pressure control solenoid valve B to apply LS B pressure (57) to CPC valve B. Line
pressure (4) from the manual valve becomes 1st clutch pressure (10) at shift valve C. 1st clutch pressure (10) is applied
to the 1st clutch, and the 1st clutch is engaged. Line pressure (4) also flows to CPC valve B, and becomes CPC B
pressure (4B). CPC B pressure (4B) becomes 1st-hold clutch pressure (15) at shift valve D, via shift valves C, B, and A.
1st-hold clutch pressure (15) is applied to the 1st-hold clutch, and the 1st-hold clutch is engaged.
NOTE: When used, ''left'' or ''right'' indicates direction on the hydraulic circuit.
1ST-HOLD/4TH
ACCUMULATOR
15
40
TORQUE
CONVERTER
91
90
94
TORQUE
CONVERTER
CLUTCH
SOLENOID
VALVE
6
LOCK-UP
LA
TIMING VALVE
X
X
90 91
X X 90' 91'
58
91'
91
LA 94
LOCK-UP
SHIFT
VALVE
96 92
93
X 6
95
58 96
90'
96
93
X 90
92
X
LOCK-UP
CONTROL
90
95
VALVE
2
93
X
95
TORQUE
X
CONVERTER
CHECK VALVE
RELIEF VALVE
92 1
X
93'
COOLER CHECK
1
VALVE
99
ATF FILTER
1ST ACCUMULATOR
1ST/1ST-HOLD CLUTCH
10
4C
15 10 20 2ND
40
15
SHIFT
VALVE D
5J 4A 25
5M X
X 58 H6X
5N
5H
5M
SHIFT VALVE B
SB
20
9
5F
5E
H4X
H5X
5H 5C 5K
5D
5D 5G
SHIFT
VALVE A
5F
5G
5J
5H
5E
50X
5K
30
H3X
SA
X5B 5A 5B 51
SHIFT VALVE E
CPC
VALVE C
4C
SA
4C
4
1
58
55
X
4
MANUAL VALVE
AX
AX
MAINSHAFT
HX
COUNTERSHAFT
SECONDARY
SHAFT
X
95
95'
95
LUBRICATION
REGULATOR VALVE
CHECK VALVE
2ND ACCUMULATOR
3RD CLUTCH
3RD CLUTCH
TRANSMISSION FLUID
PRESSURE
3RD
SWITCH
ACCUMULATOR
30
CLUTCH
KICK-DOWN VALVE
4A
30
KICK-DOWN
H9X
CPC VALVE A
SBX9
SHORT VALVE
CPC VALVE B
H10X
4B
X
SHIFT VALVE C
5C
SC
5D 4A
6
4
4 H1X
4
5B H2X
10
5A
2
51
50
25
1
3
3''
10
3
3
9
57 SC
SERVO
CONTROL
VALVE
X
4''
3'
3''
REVERSE
4'
CPC
3'
VALVE
4''
SERVO VALVE
ATF PUMP
4TH CLUTCH
4TH CLUTCH
TRANSMISSION FLUID
5TH CLUTCH
PRESSURE
SWITCH
40 50
30
55
SB
4A AX
ON
SHIFT SOLENOID
VALVE B
4
56
X
ON
SHIFT SOLENOID
VALVE C
SC
4
6
X
ON
SHIFT SOLENOID
VALVE A
4B
57
5A
X
HX
HX AX
6
58
A/T CLUTCH PRESSURE
CONTROL SOLENOID
VALVE C
HX
HX AX
6
56
A/T CLUTCH PRESSURE
CONTROL SOLENOID
VALVE A
5
HX HX
AX
57
A/T CLUTCH PRESSURE
6
CONTROL SOLENOID
VALVE B
1
MODULATOR VALVE
4 X
10
4'
X
3''
14-305
5TH
ACCUMULATOR
50
(cont'd)
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