i find a good diagnostic tool for Opel OP-COM
PC based Opel diagnostic
OP-COM is a PC based diagnostic program.
It covers almost all Opel cars, even new cars with CAN-BUS based diagnostic, such as Vectra-C, Astra-H, Zafira-B.
The program lets you to read out and clear fault codes, shows you live data, lets you to perform output test.
The program supports many control units, like Engine, Automatic Transmission, ABS, Airbag, Engine Cooling module, Instrument Cluster, Electronic Climate Control, Body Control Unit,