Audi A3 2010 2.0 TDi DTC P0776

Hi,

I need some help please for an Audi A3 2.0 TDi, DSG 170, year 2010.
Involved in a front end smash some wiring has been damaged, car now starts and drives but wont go in reverse, need a wiring diagram for the pin out gearbox to check if power is there and grounds, thanks.

Scanned with scanner and codes are 17160 pressure control solenoid 2 open or short circuit.

P0776 - Electrical Problem In Circuit

Reg number is MA59WTM.
Thank you for your time.