I have two trucks, one works great and i can get in a read everything, make changes. Other one is dead now. I did the read from the VCM and then made a few changes and then went to load it back up. When i did that it gave me a write failed error. I tried over and over. I hooked the Tuner in my other truck and it works fine. I have power to the ALDL and everyting. But now my truck will not start and support is out of the office. Any help?
This is happening on a 2007 Trailblazer ss.