Honda 2004 Odyssey, Service Manual

Page: 922 / 2459

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