[Alex Sidorenko] has built an open source OBD-II Adapter which provides a serial interface using the ELM327 command set and supports all OBD-II standards. We featured [Alex]’s inexpensive PIC ...

Open the hood on many late-model autos and you’ll find plastic covers and engine bays packaged so tightly that you can’t make sense of what's going on. That’s where OBD-II scanners come in ...