Honda 2004 Odyssey, Service Manual

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＊０４
Clutch Pressure Control
14-281
PCM
Engine RPM Signal
Throttle Position
Sensor Signal
Barometric Pressure
Sensor Signal
ATF Temperature
Sensor Signal
Actual
Driving
Shift
Position
Correction of Data
Correction of engine
coolant temperature
sensor signal data
Manifold Absolute
Pressure Sensor Signal
Correction of ATF
temperature sensor
data
Correction of
hydraulic pressure
application timing
Correction of engine
torque signal data
Master Target of
Controlling Current
Decision of
shifting mode
Requirement to
retard ignition
timing
PGM-FI Control
System
Current
feedback
A/T Clutch Pressure
Control Solenoid
Valves A, B, and C
Engine Coolant
Temperature
Sensor Signal
Input Shaft (Mainshaft)
Speed Sensor Signal
3rd Clutch Transmission
Fluid Pressure Switch
Signal
Output Shaft (Countershaft)
Speed Sensor Signal
4th Clutch Transmission
Fluid Pressure Switch
Signal
The PCM actuates the A/T clutch pressure control solenoid valves A, B, and C to control the clutch pressure. When
shifting between lower and higher gears, the clutch pressure regulated by the A/T clutch pressure control solenoid
valves A, B, and C engages and disengages the clutch smoothly.
The PCM receives input signals from the various sensors and switches, performs processing data, and outputs a
current to the A/T clutch pressure control solenoid valves A, B, and C.
(cont’d)
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