I have a 2000 Audi A6 and the AC stopped working. The system is charged but I am getting error 19 03?

If I enter the diagnostic menu on the climate control, I get error 19 03. Does anyone know what this means? All I seem to be able to find on the internet is old error code tables from early 90's A4's.I have a 2000 Audi A6 and the AC stopped working. The system is charged but I am getting error 19 03?Have you tried Audi world forums?I have a 2000 Audi A6 and the AC stopped working. The system is charged but I am getting error 19 03?You are screwed. Audi got you sucker!! Audi's without warranty means you might as well bend over a barrel.