In "R" Range

The line pressure (1), after passing through the manual valve, comes out as the line pressure (5) and (6). In this state, as the 2nd brake solenoid valve is OFF, the line pressure (1) is applied to the 1 - 2 shift valve and the line pressure (5) is applied to the 1st-reverse brake after passing through the B2 control valve. On the other hand, the line pressure (6) is applied to the direct clutch via the 2 - 3 shift valve, thus resulting in the reverse gear. Also, a part of the line pressure (6) acts on the primary regulator valve to regulate the line pressure (1).