The MD802 all systems scanner seems to work for everything I need on a 2013 Jetta TDI, but when I try to turn the fuel pump on to fill the fuel filter, it says that there is no communication. How can it work and say there is no communication on this one module? Thanks
Hi, may we know which system you were trying to test? As we all know, MD802 just supports to read vehicle info, read and erase codes and so on. If it showed no communication, please check and confirm the connection between vehicle and MD802 is fine.