I got my Audi A4 TDI 2.0 2009 PIN code and correct the odometer successfully!
I tried several cables and special tools to complete the easy job, but it seems not so easy to get the PIN code and get new odometer! The dash model is 8K0 920 900K!
My friend borrowed me the VAG Vehicle Diagnostic Interface VVDI, he bought from http://www.ecutool.com/China-VAG-Veh...VVDI_5527.html, which it not important. . To get my trouble resolved is more important.
I thought it would be the same result as those tools i have tried; but out of my surprise, i got the correct PIN code via OBDII in 5 seconds and correct the odometer to new value successfully! It takes a little longer to read out the old value, but no matter that i finished the hard job at last.
I will test the tool on more models and share experience with you, waiting me!