i'm having some trouble with the 3rd brake light (above the wheel) so i'm hoping someone can chime in with some technical knowledge.
i tested the voltage at the terminal on the body and it was right at 12v, but when i shut the trunk and checked the voltage at the light socket it only read ~9.5v. this might sound like a stupid question, but is it supposed to be 12v at the socket? i figured that even with 9.5 that the light would light up, but just dimmer than normal. i bought a few new bulbs today and they didn't work either, so it's not the bulb.
this weeknd i'm going to take it apart and see if there's a short somewhere, but i figured i'd ask just in case what i'm seeing is normal.