I got the red chassis system failure in my Panny Turbo, 2010. The front right end of the car is sitting lower than the rest, and what i think as a compensatory mechanism, the back left is the highest.
No CPO.

I'm assuming it may be a leak rather than failed compressor?

How can I check the sensor? Some research I did said sometimes the sensor becomes dislodged.

Also, how much am I looking at for repair?

Thanks!

 

 

Mine failed entirely, the car looked as though it had been "slammed", turned out to be the compressor that failed. Received many chassis failure signals before the complete failure. A restart would always clear the fault, annoying but tolerable ..... complete failure took about a year !