Professor

iTrader: (4)

I changed my spark plugs the other day and everything is fine, i noticed my ABS light on, restarted and it was gone and has been since, Also i noticed the airbag light flashes sometimes. I hooked up my scan tool and selected the ecm ran the diagnostics and it spit out a Code 20 Unknown Code....... Doe's anyone have a idea, A search online had multiple results with no clear answer.
Here is a photo of the scan tool i use, It is a Genisys Scan Tool with system 3.0.