I'd have thought anything saying system voltage is that low needs the battery charging and testing with the terminals cleaned and checked for tightness, as well as any obvious earth points and test again, it may play havoc with these cars full of modules, so only my2p

 

I checked the battery with a checker and it came out good it's also spotless of corrosion and it's tight someone told me it through that code because when I was working on my car for a few weeks the battery died. But the code won't clear

 

Ok so I cleared codes with inpa and now there is only the 5e15 code now also found something else I tested the fuses and the f5 fuse(Control Module For Instrument Cluster/Diode) didn't light up with my tester so I took it out and it wasn't actually blown there is just no power going to it so I was wondering if that is why I still have that 5e15 code?