AUTOMATIC TRANSAXLE
K2–57
K2
Line Pressure Control at Extremely Low Temperatures
• When the ATF temperature is approximately –30 °C {–22 °F} or below, the period when the pressure control
solenoid is ON (duty ratio) is set at 3 % to maintain line pressure at maximum regardless of the throttle opening
angle. Thus delay in clutch or brake operation due to high viscosity of ATF is prevented when the ATF
temperature is extremely low.
Pressure Control Solenoid Stop Control
• When the vehicle is stopped and the accelerator pedal is released, the operation (duty ratio) of the pressure
control solenoid is set at 3 %, regardless of the driving range. Due to this, AT noise is reduced when the vehicle
is stopped.
End Of Sie
FEEDBACK CONTROL DESCRIPTION
A6E571418901206
Outline
Features
• During shift up with the accelerator pedal depressed, feedback control regulates the clutch pressure on the
engagement and release sides, according to the throttle opening angle and vehicle speed. It also uses past
gearshifts to optimize clutch pressure.
Note
• If the battery terminal is disconnected, feedback memory in the TCM will be erased, and thus gearshift
shock may increase. The shock, however, will decrease gradually as the vehicle is driven.
AMU0517S034
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