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I have a 2009 GMC 2500HD 6.6 Duramax w/ Allison trans. I purchased the EDGE Evo HT2 programmer, downloaded the ignition software to the computer, got it all registered. Brought it to the truck plugged it in, it connects to the OBDII and can see the VIN and everything. Try to load a tune, it says turn the key on so i do, it says "establishing communications" and then changes to "0%" and then my truck dash gives me a "Service Traction Control" message and the tuner tells me to turn off the key, so i do and then the tuner says "communication failure". Ive never had a traction control issue. Ive emialed EDGE but they are only open monday-friday. looking for some assistance or if anyone sees something im doing wrong here. thanks