C230 diagnostic display
 

I would like to learn more about the AC display as a hidden diagnostic display for a C230. Any information that can be provided would be appreciated.

You can get fault codes, actual values, and test duct positions through the display.

I wrote an article explaining the capabilities for a 210 chassis. The 202 chassis is similar. The article has charts that apply to the 210. The article is here: http://www.babcox.com/editorial/ic/ic60046.htm

Sorry, wrong article. Try this one: http://www.babcox.com/editorial/ic/ic40142.htm

I liked the wrong article as well. Thanks for the mistake!

As long as your C230 is a 97 or 98, you can read all the values. Press and hold REST for about 5 seconds to it up (AUTO & RECIRC (?) for Up/Dn/scrolling through codes.
Stored codes in the A/C system are retrieved a different way though.
Any more Questions? Please ask! Good luck.