Volt

Park Engine Off

When the gear selector lever is in the Park (P) position and the internal combustion engine is OFF, the auxiliary fluid pump is commanded ON and line pressure is directed to the pressure regulator valve.

Variable Low and 1-2 Reverse Clutch Regulator Valve

Line or auxiliary line fluid is routed through orifice #25 to the variable low and 1-2 reverse clutch regulator valve in preparation for a shift.

Variable Hi and 2-3-4 Clutch Regulator Valve

Line or auxiliary line fluid is routed through orifice #23 to the variable hi and 2-3-4 clutch regulator valve in preparation for a shift.

1-3 Reverse Clutch Regulator Valve

Line or auxiliary line fluid is routed through orifice #24 to the 1-3 reverse clutch regulator valve in preparation for a shift.

Damper Bypass Clutch Valve

Line or auxiliary line fluid is routed through orifice #29 to the damper bypass clutch valve in preparation for an apply of the torque damper clutch.

Damper Clutch Charge

Line or auxiliary line fluid is routed through orifices #42 and #43 into the damper clutch charge circuit. Damper clutch charge fluid fills the torque damper clutch assembly in preparation for an apply of the torque damper clutch.