P0560 34 Powertrain Control Module (PCM) Backup Voltage Circuit Low Voltage

So i was driving around and my car started throwing this code. I unhooked my stereo and amps, turned the ac and all the lights off let the car run for a bit tried to clear the code and it came back in a few seconds. Does anyone know what causes this code? Bad alternator maybe the ecu is dying?

 

I don't know much about this subjct but I think its got something to do with the vbu voltage backup thingie in your ecu. I've been trying to figure out something about my ecu because it lookes like the (vbu)voltage bacup terminal on my ecu is burnt c10 and I'm trying to figure out what that does if that makes any sense.