If I were you, I'd run a diagnostic. Let the professionals find the problem, it's safer that way. Another way you can solve electrical problems is with the help of an electrician. I had some electrical problems on my car and only the electricians that worked there could help me. I would hire charlotte electrical contractors every time I had an electrical problem, but I moved from there. Still I think they have electricians everywhere around the USA, and I will be able to find them for sure if I ever have a problem again.