2000 9-5 speedometer not working + lights
 

Hi, 2000 Saab 9-5 and the speedometer does not work. Also, every brake light on the dash is flashing and or glowing. So driving the car the Brake light lite, ABS light Lite, TCS light Lite and a warning sign in the middle of the dash is lite. I think these might be all related?

Where do I start? I do not have a book, but does all the brake systems runn off the speedomter?

Lastly, the car drives fine and the brakes are relatively new. According to Les Schwabs lots of pad left and the will dignose the brake systems for $90. Again I think it is a speedometer issue. Can you guys verify that? Ever seen that before?

Thanks
Terryg911