V checker professional help

[willowtreexx]

hey guys so i just ordered my V checker professional from ECS and when i plug it into my car i want to check the engine codes and that works fine, but when i want to check my codes for airbags and transmission and brakes and what not i get a "Comm Error!" so I dont know if i am doing something wrong or what? the directions were one page long and worthless.

I did try this on 3 seperate cars and came up with the same result on each one.
2006 VW Tourage
2001 S4
2000 A4 1.8T

So i am really dissapointed and Im not sure if im just doing something wrong, can anyone help me out please!?!?

[pinky]

did you have the key in the ACC position?