I'm having a problem on my car that I'd like to fix myself. I'm not a skilled electrician, nor an engineer, only someone with some mechanical skills. I apologize in advance, for any mistakes or misuse of electrical terms I may make. Please, bear with me and keep your answers as layman as possible.
On a DC12V automotive circuit wire, how can I block off any low voltage current coming through (say, anything under 9V), and still allow the normal 12V to go through, whenever the system on that circuit is activated? A wiring diagram would be immensely appreciated!
Thank you all for your time and knowledge!