1-2, 3-4 Shift Solenoid Valve (315A)

Controlled by the powertrain control module (PCM), the 1-2, 3-4 shift solenoid (SS) valve is energized (On) in PARK range. Actuator feed pressure moves the 1-2 shift valve (318) against spring pressure and directs line fluid into the 1-2, 3-4 signal passage. 1-2, 3-4 signal fluid is then directed to the 3-4 shift valve (362).