In "D" or "2" Range (1ST Gear)

The line pressure which has passed through the manual valve is applied directly to the forward clutch. As this causes the clutch to be engaged, the 1st gear is shifted. The line pressure is also applied to the accumulator to reduce shocks at the time of clutch engagement. As the direct clutch and the 2nd brake solenoid valves receive the electric signal from the controller, that is, they are turned ON, they relieve the line pressure. Therefore, neither the 1 - 2 nor 2 - 3 shift valve operates due to no oil pressure.