It all started when my passenger rear turn signal light went out. When I went to replace the bulb the socket was all melted and charred. I bought a new socket and bulb and realized that the turn signal works when the lights are not on. When the lights are on just the passenger side rear tail light doesn't work. I don't know what to do and need help before I get a ticket.
Don't know what kind of car you're referring to, but is it a dual filament bulb? Maybe the wiring got messed up, too. Best to check the wiring with a voltmeter for all the functions.
my other car which my dad is using. i checked the wiring with the voltmeter, man wire was messed up! have to bring it to my dealer to also check up on the bulb and everything. i think there's a sharing with electric current..