Shift Solenoid Valve - Mode B
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
PCS 3 signal fluid pressure acts on a differential area of the shift solenoid valve - mode B, holding the valve in the applied position against shift solenoid valve - mode B spring force. This allows VH 234 clutch/B cooling feed fluid pressure to continue to feed the VH 234 clutch circuit.