My A4 keeps running with ignition key out. I disconected ign. swith and still runs. Please help.

 

What year is your A4?
What did you disconnect at the ignition switch exactly?

 

Its a 2001. I disconected the connector at the ign. switch. There must be a relay or computer that is not working. The hvac andaccesories will shut off when the key is off but still stays runing.I am looking for a schematic.