DTC P2807: Pressure Control Solenoid G: Description

WARNING: This page is about a different car, the 2013 Infiniti FX50. However, it is still accessible from the selected car via links, so may be relevant.

The direct clutch solenoid valve is controlled by the TCM in response to signals transmitted from the transmission range switch, output speed sensor and accelerator pedal position sensor. Gears will then be shifted to the optimum position.
The direct clutch solenoid valve controls the direct clutch control valve in response to a signal transmitted from the TCM.