My Maxisys Pro been having problem since last month. (http://pro.auteltech.com/autelsupport/J2534/20537.jhtml?logoTypeId=88&typeName=MaxiFlash%20Pro) At first, my tool would not communicate with all the module on all car. I was only able to communicate with some module. I have try that on asian cars, domestic car, and euro cars with the same result. I call tech support and they tell me to renew my subscription and update it. I hold it off until this week and same thing happen when I work on a 2005 Mazda 6 today only this time it had no communication at all. So I use my other scanner and got the code but also couple CAN communication code. I actually notice that 2 days ago when I was working on a Infiniti and it also have many CAN communication code. With my other scanner, I clear all the code, start the engine and run it. Plug in my Maxisys again, no communication. Remove the Maxisys, use my other scanner, all the CAN communication stored in PCM. At this point, I'm pretty sure there is something wrong with my system. Does anyone know what I can do to find out what's wrong. I only had this machine 1 year and its broken already. Tech support only tell me to update it whicj I did but it doesn't fix anything.