Honda Accord 2008 Manual page 888

07/11/02 08:46:45 61TA0000_140_0045
Lock-up Control
Shift solenoid valve E controls the hydraulic pressure to switch the lock-up shift valve ON and OFF. The PCM actuates
shift solenoid valve E and A/T clutch pressure control solenoid valve A to start lock-up. A/T clutch pressure control
solenoid valve A applies and regulates hydraulic pressure to the lock-up control valve to control the volume of the
lock-up.
The lock-up mechanism operates in D (2nd, 3rd, 4th, and 5th gears), and in D3 (2nd and 3rd gears).
＊０７
Engine Coolant
Temperature
Sensor Signal
Transmission Range
Switch Signal
Accelerator Pedal
Position Sensor Signal
Output Shaft
(Countershaft)
Speed Sensor Signal
Input Shaft
(Mainshaft)
Speed Sensor Signal
ATF Temperature
Sensor Signal
Engine RPM Signal
PCM
Engine Coolant
Temperature Control
Shifting Position
Control
Barometric
Pressure
Sensor
Signal
Gradient Control
by Magnitude
Fail-safe Control
Actual
Driving
Shift
Position
Lock-up Control
• Lock-up ON/OFF
Control
• Lock-up Condition
Correction
Control
from ATF
Temperature
Sensor Data
Driving
Shift
Position
Information
Master Target of
Controlling Current
Current Feedback
Shift Solenoid
Valve E
A/T Clutch Pressure
Control Solenoid
Valve A
(cont'd)
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