[wdwyerr516]

Hi,
I’ve got a e90 320i Manual 98,000 kms, I’ve got a no crank issue. When I attempt to start it everything has power except the steering is locked and the wipers go crazy. I also get a code saying P1631 - Theft Deterrent Start Enable Signal Not Correct. I have put a copper cable between pin 21 and 22 on the cas module connector and it cranks the starter, so clearly the CAS is receiving power. could it be the DME or would it be the CAS? Or something completely different? Any help appreciated. I’ll also attach the codes that I received.

Any help is greatly appreciated!