I know this isn't in the VAGCOM section but no-one ever goes in there

Anyone seen this fault code before?

Ross Tech website suggests the following:
Possible Causes
Fault(s) stored in Engine Control Module
Possible Solutions
Check Engine Control Module for Fault Codes
Special Notes
Engine Control Module stored a Code which influences other Control Modules Functionality.
To clear this Fault Code you will need to correct the Problem in the Engine Control Module first.
Is that just because there was another fault code logged? Or is it likely to be something else?