I was doing a bit of spirited driving in the rain, hit a bump in the street and transmission went into limp mode. I pulled over restarted the car and LIMP mode was gone but vehicle is unresponsive when shifted into gear. After getting towed I hooked up VCDS and it shows the transmission storing code:
Powertrain Data Bus
P1850-003 Missing message from ECU- Intermittent

Honestly the transmission feels like a pressure valve is not allowing for proper flow of trans fluid, the only thing I noticed that may be wrong when I was monitoring data is that the input speed on the transmission is reading ZERO at idle, is this normal? Does anybody know of any relays or fuses that should be checked or of failures known to have these symptoms.