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Can someone conform or refute a fact about PTV in a 981. I have read conflicting info about this and am un-sure.

If you switch off all electronic assistance as some/most do at the track, ie . PSM off does PTV still work or is it disabled also?
 

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It is not possible to turn off PTV, even if you have turned off TC. While tracking, I turn off TC but when I was using Pagid pads, which are quite noisy, I noticed in certain corners that even though I was not touching the brakes, I could hear a chirp from the rear brakes. Clearly the brakes were being activated by the PTV system. My Porsche tech confirms that PTV can not be disabled unless someone is able to crack the ECU.
 
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