left car speakers dont work?

did they stop working when you turned the balence all the way to the right?

I agree also you could check and see if the wires are disconnected on the speakers. If the tweeter works then the fade should be fine, but i would check it in case. It wouldn't hurt to check all the speaker connections if you have the time to do it.

If theyre wired to either an amp or your radio u could of blown a channel. Or check to make sure no wire is open anywhere causin it to short out.

most likely you have a short in it. if your running your music through an ipod or mp3 and your using the aux cord then it might be that cause that happend to me once and thats hard to fix so if thats it i would upgrade to where you use a direct connection with a usb cord

left channels might be dead on ur cd player, shorted out. happened to me back on my first installation when i put in my new deck. one side just stopped working so i unpluged and repluged it and it worked again. i dont know if ur deck is stock or aftermarket. but something must hav shorted

that or what justin said

if it was working. and you have not mess with the wires. then you need to replace it.