"D" Range Third Gear

The line pressure, after acting on the manual valve, passes through the forward clutch accumulator and causes the forward clutch to engage. Furthermore, as the shift solenoid valve No. 1 is OFF and the shift solenoid valve No. 2 is ON, the line pressure is not applied to the left side of the 3 - 4 shift valve and the valve moves to the left. As a result, the line pressure, after acting on the 3 - 4 shift valve, passes through the coast clutch modulator valve, undergoes adjustment and causes the coast clutch to engage. Also, the 1 - 2 shift valve moves to the left with no line pressure applied to its left side and the 2 - 3 shift valve moves to the right with line pressure applied to its left side. As a result, the line pressure applied from the manual valve to the 1 - 2 shift valve passes through the valve, the 2 - 3 shift valve and the overdrive clutch accumulator to engage the overdrive clutch. At this time, the accumulator temporarily Repressurizes temporarily the line pressure to engage the overdrive clutch according to the throttle opening so as to reduce the shock caused when the overdrive clutch is engaged.

Furthermore, the hydraulic pressure that has passed through the overdrive clutch accumulator passes through the 3 - 4 shift valve and works on the 2nd and 4th brake release side. On the other hand, with the 1 - 2 shift valve moved to the left, the line pressure applied to the 1 - 2 shift valve undergoes adjustment by the 2nd and 4th brake modulator valve and acts on the engagement side of the 2nd and 4th brake but the brake is released by the spring force of the brake and the hydraulic pressure working on the release side. When running at a constant speed, as the Torque Converter Clutch (TCC) control solenoid valve turns ON and the TCC control valve moves down, the hydraulic pressure coming from the primary regulator valve passes through the TCC control valve to operate the TCC.