Boxster Tiptronic flashing 'D'

[Dremzy]

There is no fault. I have used Porsche specific scanner and my own diagnostic tool. There used to be a P708 fault but I changed the multi function switch and that runs fine.

The car runs fine in tip and auto, just the D light is still blinking.

I have checked live data from my diag tool, and whilst driving 70mph on the motorway my tiptronic gearbox is showing 196F temperature. Is this correct? Does anyone know the operating temperatures for these gearboxes.

My thoughts are 1) Gearbox temp sensor is faulty (although no codes)

2) ATF fluid is low.

Anyone can help?? Kindly don't refer me to go to an OPC to put a PST2 tester on the car.

[Luv2Box]

"Now, the P R N all show SOLIDLY and when you put it into 'D' it flashes , but you can use auto mode fine and also tiptronic mode."
What you are trying to say here is confusing and may be why no one can answer your question. When you say "auto mode" what do you mean? The car is always in auto mode because it is a Tiptronic Automatic. When you say "tiptronic mode what do you mean? The transmission is a Tiptronic. There are only three modes to the trans that enable the car to drive, "R," "D" and "M." What selections in those modes are you talking about "R," "D," "M?"