Here is the instruction on disabling auto start/stop on 2019 Porsche Cayenne Turbo with Launch CRP919E BT/CRP919X BT diagnostic scanner.
You can set the start/stop to activate to last setting on restart via X431. This eliminates the need to press the button on every start up.
We got stop-start disabled with a CRP919E BT scanner or a none-Bluetooth version CRP919E!
It’s totally possible and pretty easy once you poke around and know what you doing.
The interface is a bit unintuitive. The key is going into “SYSTEM SELECTION” from the diagnostic report.
Porsche->Cayenne 9YA->System Selection->DME
Coding value- Block07(1)-Start_stop
Write coding.
You can also disable Porsche Start/Stop with Autel scanners. Here is an example:
Related reading: