2012 R1200 GSA Knock Sensor Readings

[cooter]

I'm really curious about the readings I'm getting on my 2012 R1200GSA from the knock sensors. I see them differing by 10 volts or more and then getting within a volt. I don't hear any knocking going on. They also seem to stay at around 448v equally when the engine isn't running. Does anyone have any thoughts?