I successfully installed the 91 tune twice now, but if I try to disable the MDS the tune fails to write (red dash light and no power to the dash during key cycle) then I have to reinstall factory tune etc etc.

Just a heads up to DS so they can work this out. I really bought this tool to shut the ...

I successfully installed the 91 tune twice now, but if I try to disable the MDS the tune fails to write (red dash light and no power to the dash during key cycle) then I have to reinstall factory tune etc etc.

Just a heads up to DS so they can work this out. I really bought this tool to shut the ...

Using the key.

I've noticed that every time it fails to write, the small red light on the left side of the dash never goes out. This light will only come on when the intune is either reading or writing a tune and when it goes through successfully, the red light goes off right at 100%. I ...

I'm having the exact same issue. Will not write tune at all on a 2012 RT. I'm on hold now.
at all?

wont even start writing?

what does it tell you?


Ok,

Heres an update. Vas helped me out yesterday after Mike had the comptuer fixed.

We found that when doing the key cycle you must wait a full ...

I'm having the exact same issue. Will not write tune at all on a 2012 RT. I'm on hold now.