The work was beyond what I wanted to try myself. A bad short could possibly damaged one of the computers, so I brought it to a shop that I trust. They did in fact find a short, a, loose connector plug, and aftermarket lights that did not fit the sockets as they should. As you all know (and now I do), Porsche and Mercedes use lamps with bayonet connectors that are slightly different from the bulbs that other manufacturers use. When I swapped out the lamps (left to right to see if there was a faulty bulb), I noticed it was difficult to get the bulb to fit properly.
Anyway, it's all fixed now. Sorry it took so long to get back to everyone, but it's amazing what can be done with money. I am experience another unrelated problem with the cooling system, and I am posting a new thread for this.
Thanks, again for all the help.
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