I just buy OPCOM (chinesse clone with 1.39 firmware) and using OPCOM081016_EN software but there is some problem when trying to connect to body module (instrument, airbag, engine coolant, central door locking) on ASTRA G 1999 X17DTL.After some time there is a message>
Changing Init Address....!

The same unit with the same software works without problem to the same module on X12 ASTRA G 1998.

OPCOM use pin12 for communication to this module.
Also I cant diagnose VP44 pump in the same car (PSG5).
I also try to use another software version 090820b with the same result and with this version the unit doesn't work in X12 Astra when using body instrument module.

Can someone tell me what is the problem with that car?

BTW Engine diagnostic works fine!