My left blinker doesn't work.
 

Mazda 6 2003. Either Im thinking it's my wires or my light socket is messed up. Put a new light in and it didnt turn on.

Don't worry man, we're your Mazda Experts... I'm sure someone will come in here to brighten up your lightbulb situation ;) :)

j/k

I don't know what kind of bulbs those take but make sure you're using the right bulb, also flip it around to the other side if its possible to put it in both ways (like a 3157 bulb). Look into the socket, if it looks all corroded then see about replacing it but if not possibly a bad wire, very unlikely.. but possibly.

Blinker fluid is low

sometimes once they go out, they WILL NOT work again unless you buy the 626 to 6 conversion kit. the kits are available at the mazda dealer only.