I have been using Digiprog 3 mileage programmer from obd2eshop for several months. The tool used to work well. But today, when I tried to use it to correct mileage for an Audi A4 of the year 2000, a window popped up, saying “ERROR NO CONNECTION”. I have also tested it on another A4 of the year 2006, and the error message showed up again. What could be the problem? Is the tool broken? Below is a photo of the problem. Please help. Urgently. Thanks.
According to the error message you provide, I guess you are connecting the tool via OBD2 port, right? However, according to Digiprog 3 mileage programmer manual book, to program mileage for most cars before 2008, you will have to disassemble the dashboard and get access to the mileage chip. Then you will need to use ST01, ST04 or other cables rather than OBD2 cable to clip the chip and let the chip communicate with the tool.
The tool will tell you if you need to disassemble the dashboard, as well as which cable you should use to do mileage programming for the car.
Solution: You can disconnect the tool, connect it to your car again, and pay attention to system prompts to determine how to do the programming.