Digital Side car short

[Luiz12]

Hi what ended up happening was that there was a short at the plug of the incoming 12v source to the DSC but now on my the battery light turns on and the 5v and 6v lights won't. I know that everything else works because I swapped our the DSC for another and it worked. But I simply don't want to trash it if it has a fix. I have a multimeter, ( even though I don't know how to use it) im a programmer not an electrician but my soldering skills are pretty good so could it be possible to find the bad component and replace it?