## Automatic Transmission

#### System description (cont'd)

14-60

Hydraulic Flow (cont'd)

Position in 4th gear

As the speed of the vehicle reaches the prescribed value, the PCM turns the shift solenoid valve A OFF. Shift solenoid valve B remains OFF and modulator (SH A) pressure (6A) is applied to the left side of the 3-4 shift valve.

The 3-4 shift valve is moved to the right side to switch the port CPC pressure (5) to the 4th clutch pressure (41), the 4th clutch pressure (41) becomes the 4th clutch pressure (40) at the manual valve. The 4th clutch pressure (40) is applied to the 4th clutch and the 4th 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.
- There are 4 hydraulic circuits; 6-position, 6-position with the 3rd sub accumulator, 7-position and 7-position with the 3rd sub accumulator. The illustration shows the 7-position transmission circuit; 6-position circuit does not include 1st-hold clutch line.