I have a 2007 Boxster S. The car sat for over two weeks and now will not start, nothing on the dash either except the valet key shows a steering lock signal, nothing from the other two main keys. Battery is fine. All the electrical up front has been checked, good continuity, no blown fuses. I tried an ignition switch no help. the door locks are inop as well. It appears to be an alarm system issue but it is a head scratcher.
Linear Mode
