ABS light issues

Hey all, I’m back. So recently I’ve been having some weird electrical issues. I first noticed my ABS light coming on randomly but then going away. I later noticed that it comes on when I turn on my headlights/running lights. On top of this my odometer light dims and my radio/temp control lights light up when I press on the brake without the running lights on. I took it down to autozone and used their scanning tool and it gave me two abs codes, c1241 and c1249. One more thing I should mention is that there are wires that used to be connected to a camper shell that I cut and put wire nuts on although that was done over a year ago and this is just starting to happen now. I’m not too familiar with electric stuff in cars so if anyone could give me an idea of what the issue is that would be awesome.

 

C1241 is for low battery voltage at the module, C1249 is a problem with the brake light switch circuit.

 

Might want to check those wire nuts and use proper automotive electrical supplies. Sounds like it also could be a bad ground or a wire rubbing through the insulation starting to short out.