Quite a new people have complained about this since, well since the Fabia came out but I thought id complie a simple guide to what CAN cause PAS faults on the Fabia and a little background to how the system works. Please note all of this is from my head so please take it as advice and not the word of Skodagod. It is open to discussion and can and will be changed as it needs to be.
The Fabia PAS system is electro hydraulic. This means it has an electric pump the presurises the fluid rather than