DTC P0776: Pressure Control Solenoid "B" Performance (Shift Solenoid Valve SL2) [09/2014 - 08/2016]: Wiring Diagram
WARNING: This page is about a different car, the 2017 Lexus RC 350, 2016 Lexus RC 350, and 2015 Lexus RC 350. However, it is still accessible from the selected car via links, so may be relevant.
Refer to DTC P0748 and P2765.
P0748: Refer to WIRING DIAGRAM
P2765: Refer to DTC P2765: Input / Turbine Speed Sensor "B" Circuit; DTC P2767: Input / Turbine Speed Sensor "B" Circuit No Signal [09/2014 - 11/2017]