David, my Jetta/Golf Bentley has some codes listed for Cali models; same
info as the first 2 links below.  The 3rd link seems to have more extensive
coverage.
Not sure if these codes apply to the 022D ECU, but I would think so.

http://oneilcastro.com/A2Bentley/FU01/ch7.7.html
http://www.oneilcastro.com/A2Bentley/FU01/ch8.1.html

Nice list of Digi codes here:
http://www.clubgti.com/forum/archive/index.php?t-50225.html

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
David Beierl
Sent: Friday, March 12, 2010 5:48 PM
To: vanagon@GERRY.VANAGON.COM
Subject: ECU 022D error codes?

Dear Volks,

Does someone out there know the error codes for the 022D ECU, and how
to invoke them?

Thanks,
David