i need to know whats wrong with my driver side running light. the turn signal works fine but the running light wont come on with them on or with the headlights on, the guy who owned the car before thought he knew something about cars and had the whole wiring f@#ed up, wires stuck in fuse terminals between terminal and so forth, what could be the problem?

could be anything if he messed with all the wiring. try going back to the stock wiring if its still there. and also check the bulb filaments , do you have a cav or SF ?

its a 00 cavalier. and i checks the filaments, they are good, ill try going back to stock. thanks

9/10 the bulb needs to be replaced. Try switching your bulbs and see what happens.