Thanks for the input, all. Time to bite the bullet and get a rebuilt ccu. Ouch. Does it make sense to check any other parts of the system to make sure I don't fry the new ccu, or does the aux water pump drawing .8 to .9 amps explain the death of the ccu? Also, I must admit that I remember a particularly stupid move I did a while ago while disassembling the center console area to get at the footwell pods. The plugs attaching to the pbu were hard to remove, and I put a screwdriver under the edge of the plug on one side to pry it up. I don't remember any arcing or anything, and see no signs of arcing looking in the area, but if there was power to one of the pins and I shorted it to one of the others I suppose that could kill the ccu. One last thing: the consensus is that the programa rebuilt ccu is the best thing to get?

__________________
87 300D 162,000 miles: It's not just a car, it's an adventure!