R Position: Driving in reverse gear

As the speed of the vehicle reaches the programmed value, the PCM turns shift solenoid valves B and C ON. Shift solenoid valve A remains OFF, and shift solenoid valve D remains ON. Shift solenoid valve B is turned ON, and shift solenoid valve B pressure (SB) is applied to the right end of shift valve B. Shift valve B is moved to the right side to switch the A/T clutch pressure control solenoid valve A pressure port (55') to the line pressure port (1B) leading to the 5th clutch. The 5th clutch is engaged with the line pressure.