If you should decide that you need a new ETA, be sure and buy a new gasket. Also, there is a rubber tube that attaches towards the firewall....it will probably break. Be careful with the plastic tubing (vacuum lines) - they get brittle as well.
Take a picture, so you remember exactly where the springs go.
Once you get the new one, plug it in first, and turn on the ignition to verify it's not DOA.

Good luck with your diagnosis... A CC module I would try one from a junkyard - An ETA I would definitely get a rebuilt one.

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It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so. Robert A. Heinlein


09 Jetta TDI
1985 300D