01350 Alarm fault code but no power.

So once again the car doesn't want to work for me. I was moving the car on a car park earlier, pulled out the space and it jerked forward and then slowed as though a boost pipe popped off. Not the case, got vagcom up on it and i'm getting 01350 Alarm via Theft Warning System: Rear 006- short to plus. The car has no power at all low down but will boost nearly as normal but a hill will slow it very quickly. EML is on and the glow plug light is flashing.

Anyone experienced this before? Can an alarm fault cause a complete lack of power? It is a 2.0 tdi, so many problems with this car!

Fixed, if anyone wants to know. The sensor that plugs into the front of the dpf the cable has split, put it back togther nd everything cleared and power again.