Hello all, I have a Saab 9-3 Vector 2.0 and for some time now loud error messages in the SID After the start the SID shows me that my ABS, ESP and ASR would be defective as well then the steering wheel lock works and the cruise control does not work. At first it only sporadically because I pushed it to the cold in January when it then got a little warmer again the error messages did not come for a short time. Has anyone ever had such experiences and knows what it is about could be? My interior fan was also out of style in winter. I started with a little cleaning and WD 40 again. I already say thank you