## Automatic Transmission

#### System Description (cont'd)

14-48

Hydraulic Flow (cont'd)

or Position in 2nd gear

As the speed of the vehicle reaches the prescribed value, the PCM turns the shift solenoid valve A ON. Shift solenoid valve B remains ON and modulator (SH A) pressure (6A) in the left side of the 1-2 shift valve and 3-4 shift valve is released. The 1-2 and 3-4 shift valves are moved to the left side and the 1-2 shift valve uncovers the port leading CPC pressure (5) to the 2-3 shift valve. CPC pressure (5) becomes 2nd clutch pressure (20) at the 2-3 shift valve. The 2nd clutch pressure (20) is applied to the 2nd clutch and the 2nd clutch is engaged.

Line pressure (4) also flows to the 1st clutch and the 1st clutch is engaged. However, no power is transmitted because of the one-way clutch.

NOTE: When used, ''left'' or ''right'' indicates direction on the hydraulic circuit.