... 38400 3. procotol: RS232 OP-COM-PC based Opel car diagnostic tool1. It covers almost all Opel cars, even new ... cars with CAN-BUS based diagnostic, such as Vectra-C, Astra-H, Zafira-B.2. The program lets you to ... Opel user many pin in the OBD connector, the diagnostic interface works as a multiplexer, and selects the appropriate ... tests on many controllers. OP-COM-PC based Opel car diagnostic tool