OK, everything is in and I seem to have a working climatronic. I can even drive around again and turn the heat on if I want, and everything seems to work mostly OK (which is good, because I started a new job today and needed to be able to drive in.) However, there's a couple big problems I need to solve and I think they're related.
I still have two wires I need to connect up. Pin 2 and pin 9 from the 12 pin connector on the climatronic are supposed to run out to pins 8 and 12 on the 14 pin radiator fan control unit. However, when I pull apart the 14 pin connector that sits next to the fender well I have no wires at all in pin 14, and in pin 8 it seems that a wire runs to that pin from inside the car and then stops. There is no pin 8 on the male side of the connector. So I connected T12/2 to the wire in T14/8 that was previously disconnected, but I'm not sure that was a good idea now. This also leaves me with one dangling wire coming from T12/9 that I know needs to connect to something.
After I've turned the key to on, the right radiator fan turns on at full speed and will not turn off until I disconnect the battery. I can reconnect the battery and the fan will stay off until I turn the key on again. I suspect that this problem is a symptom of the previous paragraph.
Have I gone wrong somewhere, or did VW change up the wiring for some reason?