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Discussion Starter · #1 · (Edited)
I just recently replaced my 7 year old battery in my 2007 Cayman S which had gone completely dead; shorted. When I got the new one installed, I started the car which runs fine but I noticed on the dash the explanation mark and found the notification that "PSM Failure"

Anybody have any suggestions about how to handle this problem? I'm hoping that there may be a blown fuse or maybe a restart procedure required when the battery is replaced.

Thanks for any suggestions.
 

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I've seen both PSM and PASM failure after having the battery disconnected. They go away after driving a few hundred feet. Probably sensor recalibration...
 
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