Hi all, I'm new to this but I'm guessing people on here may help. I have just brought a 56 plate passat (I know it's not an audi) and I have had a problem. I've had a diagnostic done and have fault codes 05635 internal control mod failed self test P1603 short with power & 00564 boost pressure regulation limit exceeded over boost condition P0234 short with power. Can anyone tell me what these mean in English and what needs to be done? Thanks in advance for your help.