Quote:
Originally Posted by Zarbuck
At this point the only thing the car will do is when the key is turned in the ignition the starter will turn the engine over. Nothing electrical works head light, tail lights, indicators, windows, door locks. The only sign of any electricity even being in the car at all is the red warning light on the dash lights up.
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Here is the big clue. A major circuit that is controlled by the ignition switch is not getting energized. Your mechanic has a wiring diagram for the car, right? Otherwise, it's like throwing darts at a board blindfolded (darts=expensive Porsche parts).
Start with a circuit diagram for the ignition switch. Make sure that the wires that are supposed to be energized when the switch is on are indeed being energized. Start at the back of the ignition switch and move forward, component by component, following the wiring diagram. Eventually you'll find the place where power is going in, but not coming out. That's how you perform electrical diagnosis.