Problem:

It is a 2008 VW Toureg with Kessy module. Weld up and read back-up data with xhorse vvdi key tool plus successfully. But it fails to read immo data. Tried several times. Welding is good.
What could be the problem?

Solution:

Don’t have to read immo data from the Programmer menu.

Go through the IMMO menu and loaded the “backup data” you read with the programmer, and it will give the the pin and 7 byte cs code.

Go to this screen and load the data you’ve read.

Same system as 2008 Porsche Cayenne.