4.0 TDI Turbo Module 2 Fault Code - Limp Mode

[North2007]

Guys, I had my actuator refurbished 2 months ago (complete with warrant) . It throwing up the following codes. Is it possible the codes are relating to another problem (listed in special notes of Ross Tech)? I hate the thought of having to replace the turbo (I did the drives side - it a killer of a job!).

18361 - Turbocharger Control Module 2
P1953 - 000 - Defective - MIL ON
Freeze Frame:
RPM: 0 /min
Torque: 19.5 Nm
Speed: 0.0 km/h
Duty Cycle: 0.4 %
Voltage: 11.86 V
Duty Cycle: 94.5 %
Mass Air / Rev.: 0.0 mg/str
Absolute Pres.: 999.6 mbar

19805 - Control Circuit for Controller for Turbocharger 2 (J725)
P3349 - 002 - Electrical Malfunction - Intermittent
Freeze Frame:
RPM: 0 /min
Torque: 27.3 Nm
Speed: 0.0 km/h
Duty Cycle: 0.4 %
Voltage: 11.78 V
Duty Cycle: 94.5 %
Mass Air / Rev.: 0.0 mg/str
Absolute Pres.: 979.2 mbar