Honda Odyssey 2004. Manual — part 228
*21
Hydraulic Flow (cont’d)
R Position: Shifting to the R position from the P or N position
14-306
Automatic Transmission
System Description (cont’d)
TORQUE
CONVERTER
CLUTCH
SOLENOID
VALVE
94
90
91
TORQUE
CONVERTER
6
LA
LOCK-UP
TIMING VALVE
90 91
X X
90’ 91’
58
91’
91
96 92
93
95
X
6
90’
96
58 96
X90
X
92
LOCK-UP
CONTROL
VALVE
95
2
X
X
95
RELIEF VALVE
90
93
93’
X
TORQUE
CONVERTER
CHECK VALVE
COOLER CHECK
VALVE
ATF FILTER
99
1
92 1
REGULATOR VALVE
95
95’
X
LUBRICATION
CHECK VALVE
ATF PUMP
REVERSE
CPC
VALVE
SERVO VALVE
10
3
3’’
3’
X
SERVO
CONTROL
VALVE
3’
4’
4’’
X
3
9
4 X
4’’
4’
10
1
6
MODULATOR VALVE
3’’
MANUAL VALVE
4
2
51
50
1
3
3’’
57
5
56
58
SB
X
6
X
X
56
4
4
X
4B
57
6
4
4 H1X
4
5B H2X
5C
4B
SC
KICK-DOWN VALVE
H9X
KICK-DOWN
SHORT VALVE
4A
30
4C
X
55
4
SA
X5B 5A 5B 51
5H
5H
9
5F
5M
5D
SB
5J 4A 25
5TH
ACCUMULATOR
5TH CLUTCH
3RD
ACCUMULATOR
1ST/1ST-HOLD CLUTCH
1ST ACCUMULATOR
1ST-HOLD/4TH
ACCUMULATOR
40
15
4C
10
15 10 20 2ND
CLUTCH
30
30
40 50
55
50
ON
OFF
ON
X
X
4TH CLUTCH
3RD CLUTCH
3RD CLUTCH
TRANSMISSION FLUID
PRESSURE
SWITCH
2ND ACCUMULATOR
4TH CLUTCH
TRANSMISSION FLUID
PRESSURE
SWITCH
LA 94
LOCK-UP
SHIFT
VALVE
95
25
A/T CLUTCH PRESSURE
CONTROL SOLENOID
VALVE A
A/T CLUTCH PRESSURE
CONTROL SOLENOID
VALVE C
A/T CLUTCH PRESSURE
CONTROL SOLENOID
VALVE B
SHIFT SOLENOID
VALVE B
SHIFT SOLENOID
VALVE C
SHIFT SOLENOID
VALVE A
6
6
CPC VALVE A
CPC VALVE B
5D 4A
SHIFT VALVE C
SHIFT VALVE E
4C
1
CPC
VALVE C
H3X
SA
5J
5G
50X
5E
5F
SHIFT VALVE B
15
SHIFT
VALVE D
40
H4X
93
MAINSHAFT
COUNTERSHAFT
SECONDARY
SHAFT
4A AX
5A
5E
20
AX
57 SC
H10X
SHIFT
VALVE A
H5X
X 58
H6X
5M X
HX
AX
HX HX
AX
HX
HX AX
HX
HX AX
SC
5A
10
5N
SBX9
5K
58
5D 5G
5H 5C 5K
30
Line pressure (1) becomes line pressure (3) at the manual valve, and flows to the reverse CPC valve. Line pressure (3)
is regulated by the reverse CPC valve and becomes line pressure (3’). Line pressure (3’) pushes the servo valve to the
reverse position, passes through the servo valve, and flows to the manual valve. Line pressure (3’’) becomes 5th
clutch pressure (50). The 5th clutch pressure (50) is applied to the 5th clutch, and 5th clutch is engaged with the
reverse CPC pressure mode.
NOTE: When used, ‘‘left’’ or ‘‘right’’ indicates direction on the hydraulic circuit.
03/07/29 09:38:44 61S0X050_140_0309
*22
R Position: Driving in reverse gear
Reverse Inhibitor Control
14-307
TORQUE
CONVERTER
CLUTCH
SOLENOID
VALVE
94
90
91
TORQUE
CONVERTER
6
LA
LOCK-UP
TIMING VALVE
90 91
X X
90’ 91’
58
91’
91
96 92
93
95
X
6
90’
96
58 96
X90
X
92
LOCK-UP
CONTROL
VALVE
95
2
X
X
95
RELIEF VALVE
90
93
93’
X
TORQUE
CONVERTER
CHECK VALVE
COOLER CHECK
VALVE
ATF FILTER
99
1
92 1
REGULATOR VALVE
95
95’
X
LUBRICATION
CHECK VALVE
ATF PUMP
REVERSE
CPC
VALVE
SERVO VALVE
10
3
3’’
3’
X
SERVO
CONTROL
VALVE
3’
4’
4’’
X
3
9
4 X
4’’
4’
10
1
6
MODULATOR VALVE
3’’
MANUAL VALVE
4
2
51
50
1
3
3’’
57
5
56
58
SB
X
6
X
X
56
4
4
X
4B
57
6
4
4 H1X
4
5B H2X
5C
4B
SC
KICK-DOWN VALVE
H9X
KICK-DOWN
SHORT VALVE
4A
30
4C
X
55
4
SA
X5B 5A 5B 51
5H
5H
9
5F
5M
5D
SB
5J 4A 25
5TH
ACCUMULATOR
5TH CLUTCH
3RD
ACCUMULATOR
1ST/1ST-HOLD CLUTCH
1ST ACCUMULATOR
1ST-HOLD/4TH
ACCUMULATOR
40
15
4C
10
15 10 20 2ND
CLUTCH
30
30
40 50
55
50
ON
OFF
OFF
X
X
4TH CLUTCH
3RD CLUTCH
3RD CLUTCH
TRANSMISSION FLUID
PRESSURE
SWITCH
2ND ACCUMULATOR
4TH CLUTCH
TRANSMISSION FLUID
PRESSURE
SWITCH
LA 94
LOCK-UP
SHIFT
VALVE
95
25
A/T CLUTCH PRESSURE
CONTROL SOLENOID
VALVE A
A/T CLUTCH PRESSURE
CONTROL SOLENOID
VALVE C
A/T CLUTCH PRESSURE
CONTROL SOLENOID
VALVE B
SHIFT SOLENOID
VALVE B
SHIFT SOLENOID
VALVE C
SHIFT SOLENOID
VALVE A
6
6
CPC VALVE A
CPC VALVE B
5D 4A
SHIFT VALVE C
SHIFT VALVE E
4C
1
CPC
VALVE C
H3X
SA
5J
5G
50X
5E
5F
SHIFT VALVE B
15
SHIFT
VALVE D
40
H4X
93
MAINSHAFT
COUNTERSHAFT
SECONDARY
SHAFT
4A AX
5A
5E
20
AX
57 SC
H10X
SHIFT
VALVE A
H5X
X 58
H6X
5M X
HX
AX
HX HX
AX
HX
HX AX
HX
HX AX
SC
5A
10
5N
SBX9
5K
58
5D 5G
5H 5C 5K
30
The PCM turns shift solenoid valve C OFF. Shift solenoid valve A keeps OFF and B keeps ON. Shift solenoid valve C is
turned OFF, and SH C pressure (SC) is applied to the right side of the reverse CPC valve. Then the reverse CPC valve
moves to the left side, creating full line pressure. Line pressure to the 5th clutch is the same as when shifting to the R
position, and 5th clutch pressure increases. The 5th clutch is engaged with line pressure mode.
When the R position is selected while the vehicle is moving forward at speeds over 6 mph (10 km/h), the PCM outputs
to turn shift solenoid valves A and C ON; and shift solenoid valve B keeps ON. The reverse CPC valve is moved to right
side and covers the port to stop the line pressure (3’) to the servo valve. The line pressure (3’) is not applied to the
servo valve, and the 5th clutch pressure (50) is not applied to the 5th clutch. As a result, power is not transmitted to the
reverse position.
NOTE: When used, ‘‘left’’ or ‘‘right’’ indicates direction on the hydraulic circuit.
(cont’d)
03/07/29 09:38:46 61S0X050_140_0310
*23
Hydraulic Flow (cont’d)
P Position
14-308
Automatic Transmission
System Description (cont’d)
TORQUE
CONVERTER
CLUTCH
SOLENOID
VALVE
94
90
91
TORQUE
CONVERTER
6
LA
LOCK-UP
TIMING VALVE
90 91
X X
90’ 91’
58
91’
91
96 92
93
95
X
6
90’
96
58 96
X90
X
92
LOCK-UP
CONTROL
VALVE
95
2
X
X
95
RELIEF VALVE
90
93
93’
X
TORQUE
CONVERTER
CHECK VALVE
COOLER CHECK
VALVE
ATF FILTER
99
1
92 1
REGULATOR VALVE
95
95’
X
LUBRICATION
CHECK VALVE
ATF PUMP
REVERSE
CPC
VALVE
SERVO VALVE
10
3
3’’
3’
X
SERVO
CONTROL
VALVE
3’
4’
4’’
X
3
9
4 X
4’’
4’
10
1
6
MODULATOR VALVE
3’’
MANUAL VALVE
4
2
51
50
1
3
3’’
57
5
56
58
SB
X
6
X
X
56
4
4
X
4B
57
6
4
4 H1X
4
5B H2X
5C
4B
SC
KICK-DOWN VALVE
H9X
KICK-DOWN
SHORT VALVE
4A
30
4C
X
55
4
SA
X5B 5A 5B 51
5H
5H
9
5F
5M
5D
SB
5J 4A 25
5TH
ACCUMULATOR
5TH CLUTCH
3RD
ACCUMULATOR
1ST/1ST-HOLD CLUTCH
1ST ACCUMULATOR
1ST-HOLD/4TH
ACCUMULATOR
40
15
4C
10
15 10 20 2ND
CLUTCH
30
30
40 50
55
50
ON
OFF
OFF
X
X
4TH CLUTCH
3RD CLUTCH
3RD CLUTCH
TRANSMISSION FLUID
PRESSURE
SWITCH
2ND ACCUMULATOR
4TH CLUTCH
TRANSMISSION FLUID
PRESSURE
SWITCH
LA 94
LOCK-UP
SHIFT
VALVE
95
25
A/T CLUTCH PRESSURE
CONTROL SOLENOID
VALVE A
A/T CLUTCH PRESSURE
CONTROL SOLENOID
VALVE C
A/T CLUTCH PRESSURE
CONTROL SOLENOID
VALVE B
SHIFT SOLENOID
VALVE B
SHIFT SOLENOID
VALVE C
SHIFT SOLENOID
VALVE A
6
6
CPC VALVE A
CPC VALVE B
5D 4A
SHIFT VALVE C
SHIFT VALVE E
4C
1
CPC
VALVE C
H3X
SA
5J
5G
50X
5E
5F
SHIFT VALVE B
15
SHIFT
VALVE D
40
H4X
93
MAINSHAFT
COUNTERSHAFT
SECONDARY
SHAFT
4A AX
5A
5E
20
AX
57 SC
H10X
SHIFT
VALVE A
H5X
X 58
H6X
5M X
HX
AX
HX HX
AX
HX
HX AX
HX
HX AX
SC
5A
10
5N
SBX9
5K
58
5D 5G
5H 5C 5K
30
Shift solenoid valve C is turned OFF by the PCM, and SH C pressure (SC) is applied to the right side of the reverse CPC
valve. Then the reverse CPC valve is moved to the left side to uncover the port leading line pressure (3) to the servo
valve. Line pressure (3’) passes through the servo valve and flows to the manual valve. Line pressure (3’’) is
intercepted at the manual valve, and is not applied to the clutches.
NOTE: When used, ‘‘left’’ or ‘‘right’’ indicates direction on the hydraulic circuit.
03/07/29 09:38:48 61S0X050_140_0311
26
S0X4AA1E10474000000CAAT06
Lock-up System
14-309
TORQUE
CONVERTER
TORQUE CONVERTER
CLUTCH SOLENOID
VALVE
91
90
94
6
LA
90 91
90’ 91’
58
91’
91
96 92
93
X
6
95
90’
96
92
90
X
LOCK-UP
CONTROL
VALVE
95
2
95
X
X
RELIEF VALVE
92
90
93
93’
X
COOLER CHECK
VALVE
ATF FILTER
99
1
1
REGULATOR VALVE
LUBRICATION
CHECK VALVE
95
95’
X
ATF PUMP
X
X
LOCK-UP
TIMING VALVE
X X
AX
AX
LOCK-UP
SHIFT VALVE
LA 94
58 96
X
95
93
HX
MAINSHAFT
COUNTERSHAFT
SECONDARY
SHAFT
TORQUE
CONVERTER
CHECK VALVE
The lock-up mechanism operates in the D position (3rd, 4th, and 5th), and D3 position (3rd). 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 hydraulic control, the PCM optimizes the timing of the lock-up mechanism. When the torque
converter clutch solenoid valve activates, modulator pressure changes to switch lock-up ON and OFF. The lock-up
control valve and the lock-up timing valve control the amount of lock-up according to A/T clutch pressure control
solenoid valve C. The torque converter clutch solenoid valve is mounted on the torque converter housing, and A/T
clutch pressure control solenoid valve C is mounted on the transmission housing. They are controlled by the PCM.
(cont’d)
03/07/29 09:38:49 61S0X050_140_0312
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