## Automatic Transmission

#### System description (cont'd)

14-62

Hydraulic Flow (cont'd)

Position

Line pressure (1) changes the line pressure (4) and 1st-hold clutch pressure (18) at the manual valve. Line pressure (4) becomes the 1st clutch pressure (10) and flows to the 1st clutch and the 1st clutch is engaged.

The PCM controls the shift solenoid valve A OFF and B ON. Modulator pressure (6A) applies the left side of the 1-2 shift valve and 3-4 shift valve and the valves uncover the port leading 1st-hold clutch pressure to the 1st-hold clutch. The 1st-hold clutch pressure (18) passes through the 3-4 shift valve and the 1-2 shift valve and becomes the 1st-hold clutch pressure (15). The 1st-hold clutch pressure (15) flows to the 1st-hold clutch and the 1st-hold clutch is engaged.

NOTE:

- When used, ''left'' or ''right'' indicates direction on the hydraulic circuit.
- position is applied to the 7-position transmission.