From: th@invalid.com   
      
   A friend has an old Astra wagon, and the central locking stopped   
   working. I just got a cheap Chinesium scantool that happens to cover   
   this model, so got a code readout, and it returned U0009   
   For Opel cars, this means:   
      
   High Speed CAN Communication Bus (-) shorted to Bus (+)   
      
   If that is so, shouldn't it cause a lot more problems?   
   Nothing else seems to be wrong with the old clunker.   
   So I guess it only affects communication between 2 modules either side   
   of the shorted cable.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)