I have an electrical problem that I can't resolve. My 1999 Boxster will not start. Initially, it would take 1 or 2 twists of the key before the starter would engage. This went on for 6 months or so. But then the problem got worse, and now the starter will not engage at all. There are other weird symptoms:
- Putting the transmission in Reverse causes everything to turn off
- Depressing the brake pedal causes everything to turn off
- The ignition switch has been replaced
- Warning lights on dash will flicker when key is turned on
- Trip computer display items (bottom of center gauge) will cycle on its own (as if a button is being pushed)
- This wasn't an all-at-once problem, it got worse over time and more weird things started happening
- The battery tested fine and is on a charger. I checked the voltage while cycling the key and it never drops below 12.6 volts.
- Here's a short video clip of the problem: https://www.youtube.com/watch?v=NjepE0EzxT0
Any ideas? The main ECU in the rear trunk?