Bay diagnostic block wiring, anyone?

Hi all.

This is something I have been wanting to know for a long time.

Is there a schematic/layout available for the diagnostic wiring block on my 74 kombi?
Old Mr Gregory being the forgetful and error prone man that he is doesn't seem to have the wiring for the diagnostic system. Does anyone have it?

http://66.34.72.138/wiring/index.html

If that doesnt work it is www.vintagebus.com and go to wiring diagrams

Thanks for that. Downloading them right now.

edit:

Found the part with the diagnostic block. They made the writing a bit too small on it. I don't suppose anyone with the VW service manual could either scan me a hi-res copy of that little bit or tell me what it says.

I have to learn how to read that sort of schematic again too. I don't remember how they work anymore. Guess I got too used to the old-style diagrams.