PCMSCAN is a fully featured generic OBD-II scanner and diagnostic tool that supports a wide variety of OBD-II hardware interfaces. All control devices in vehicles that support OBD-2. In conjunction with an ELM327 based interface ScanMaster an ideal OBD solution (also scan tool or OBD scanner called) to diagnose all OBD-2-capable systems and is very suitable as well for automotive repair shops, even for seasoned home and hobby mechanics. ScanMaster-ELM is a OBD-2/EOBD diagnostic scan tool for vehicle diagnostics under OBD-II/EOBD standards that were developed specifically for the ELM327 chip from the company ELM Electronics.