Honda 2004 Odyssey Service Manual page 668

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D4 Position: Shifting between 3rd gear and 4th gear

As the speed of the vehicle reaches the prescribed value, the PCM turns shift solenoid valve A OFF. The PCM also

controls A/T clutch pressure control solenoid valve B to apply LS B pressure (57) to CPC valve B. Shift solenoid valve B

keeps OFF, and C keeps ON. Shift solenoid valve A is turned OFF, and SH A pressure (SA) is applied to the left side of

shift valve A. Then shift valve A is moved to the left side to switch line pressure and CPC pressure. Line pressure (4)

becomes CPC B pressure (4B) at CPC valve B. The CPC B pressure (4B) becomes 4th clutch pressure (41) at shift valve

D, and flows to the 4th clutch via the manual valve. The 3rd clutch pressure is changed to CPC pressure mode by

switching the position of shift valve A.

NOTE: When used, ''left'' or ''right'' indicates direction on the hydraulic circuit.

1ST ACCUMULATOR

TORQUE CONVERTER

CLUTCH SOLENOID

LOCK-UP TIMING

LOCK-UP SHIFT

LOCK-UP CONTROL

RELIEF VALVE

SHIFT VALVE E

SHIFT VALVE B

REGULATOR VALVE

SHIFT VALVE C

SHIFT VALVE D

MANUAL VALVE

4TH ACCUMULATOR

SHIFT SOLENOID

SHIFT SOLENOID

SHIFT SOLENOID

A/T CLUTCH PRESSURE

CONTROL SOLENOID

A/T CLUTCH PRESSURE

CONTROL SOLENOID

SERVO CONTROL

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