05 boxster s multiple lights on

[ASD]

My son's 05 has many fault lights showing.it won'rt pass emissions here if any are lit
took it to a shop today...I suspect water in the under seat computer.
Is it a ecu or dme or pcm?
i cant seem to find the parts list.

[CarGuyNeil]

The under seat computer is the Immobilizer or security computer.

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[Matt at Pelican Parts]

If the car runs fine but has fault lights it is much more likely that there is a bad sensor or leak in the system.

If the car's computer was the issue it would likely have issues starting, running or driving

-Matt