As the engine turns, the ATF pump also starts to operate, Automatic transmission fluid
(ATF) is drawn from (99) and dis-
charged into (1). Then, ATF flowing from the ATF pump becomes the line
pressure (1). The line pressure (1) is regulated
by the regulator valve. The torque conv€rter inlet pressure
(92) enters (94) of the torque converter through the lock-up
shift valve and discharges into (901. The torque converter ch€ck valve
prevents the torque converter pressure from rising'
Under this condition, the hydraulic pressure is not applied to the clutches'
NOTE: When used,
"1eft" or "right" indicates direction on the hydraulic circuit'