I just picked up my new to me 01 Deville today. It is now time to figure out what my electrical problem is. Here is the list of issues... the turn signals do not work, but the hazards do work. The Info, On/Off buttons do not work, so I cannot pull codes. Cruise control does not work. The Metric/English, Display Mode, trip buttons do not work. The Air Bag light is lit. On the information Center I am getting Service Electrical System and Service Air Bag System messages. That's the list. Does anyone have an idea of what I should look for? Should I invest in a cheap OBD2 Scantool? Any input would be greatly appreciated.