We got a visit from Andy aka ASCTLC in the 6.5 forum where I have a sticky for scan tool help, some of our scan tool owners scanners mite work on your DMAX check here http://www.dieselplace.com/forum/showthread.php?t=25950 to see if someone near by you can help you out. Any of you with a DMAX capable Scan tool not posting in the 6.5 forums , feel free to add your name to the list there as your tool will most definately work on a 6.5.

i Have A Tech 2 Thats Good To 2005 Gm ( No Candi )

I Had It Updated At The Dealer 11/01/06

i Have Access To A Snap On Solous Also, With Software Good To 03 I Believe.....

also A Otc 3408 Obd -2 Code Reader Scanner And Reset Tool

if I Can Help Let Me Know !! :)

I have a snap on modis to 05 if I can help as well.