Opcom OP-Com for Opel V1.99 PIC18F458 Chip and FTDI Chip. Opcom OP-Com 2012V Firmware V1.99 Highlights OPCOM Function 1 x OPCOM interface. Since Opel uses many pins in the OBD connector, the diagnostic interface works as a multiplexer, and selects the appropriate pin for communication.
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