How do I check live data frome example PDC on INPA?

Hello!

I've have problems with my INPA i cannot reach any modules for example if I press airbag I get message cannot contact etc. But if I press functional jobs i get a menu information. There you can check live data frome several things analog etc. I tried one and I got the voltage of the battery and some other things. But I don't understand what all menu means. Anybody that can help me?

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How do I check live data frome example PDC on INPA?