Audi Repair Questions? Ask a Mechanic for Answers ASAP
Hi there. Welcome to our site.
With the engine running, the A/C on and the relay plugged in, you should have voltage at terminals 30 and 85 from fuse 225, ground at terminal 86 from the control head and voltage going to the compressor from terminal 87. If there is no ground from the control head, you'll need a VAG tool with the adapter cable so I can help you diagnose what is causing the failure.
Not a problem. Im usually online 2-8PM Eastern Time.
Thank you for using my services.