Shift Solenoid Valve - Mode B
WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
HD 234 clutch supply fluid passes through the shift solenoid valve - mode B into the HD 234 clutch circuit and is routed to the hybrid direct 2-3-4 clutch assembly.