Hello, my name is Mark and I will try help you with this.
This fault codes relates to either a faulty wiring harness to the wastegate regulating valve, a faulty valve or a faulty ecu.
If it is a wiring fault then it is a short circuit in the wiring so check for any signs of chaffing through to a metal ground or an earth wire in the harness.
Doing a bit of internet research it appears this is a common fault with this engines and is most likely the SWIRL VALVE ACTUATOR
Swirl valves do coke up but they usually also show fault codes related to the egr system.
Still worth checking though.
You can connect a mityvac pump to see if it moves properly.