Swift L4-1298cc 1.3L SOHC MFI (1997)
As the vehicle speed is further accelerated in the 2nd gear and reaches the 3rd gear shift point, the direct clutch solenoid valve turns OFF and closes the
relief circuit. This causes the line pressure (4) to be applied to the 2, 3 shift valve. Then the oil pressure is applied to the direct clutch to make it engaged.
At the same time, the oil pressure acts, as a back pressure, on the 2nd brake piston. Thus the 2nd brake piston is pushed back, the 2nd brake is releases
and the 3rd gear is attained. In this state, as the 2nd brake solenoid valve is OFF, the 1 - 2 shift valve is at work and opens the oil passage to the 2nd
brake but the 2nd brake does not operate. It is because the oil pressure to the 2nd brake is balanced with the above mentioned back pressure and the
return spring force pushes back the piston to prevent the 2nd brake from operating.
In "L" Range