I also am no expert at this system.
Here is a Programa site page. Programa is a premier rebuilder of import electronics, you will find some of their products in Fastlane. Find your Climate Control P/N and download technical troubleshooting info.
http://www.programainc.com/?go=technical_support&v=3
Vacuum is very important in this system. The Auxilary Coolant Pump should be disconnected or fused, if it over draws current it will take out the Climate Control.