EPS001, a portable diesel vehicle diagnosis device, needs to be used with a cell phone, already supports IOS system,using bluetooth transmission mode. EPS001 can simultaneously perform communication testing on vehicles equipped with Cummins engine series, as well as vehicles in the United States and Europe, etc. It can view ECU version information, query vehicle maintenance faults, clear vehicle malfunctions, read real-time vehicle operation data flow, DPF regeneration, SCR test and other functions.