Like it seems like my brakes r on and light up, but when I apply the brakes my left one doesnt light up bright like my right one does or my middle one. Why is this ?

 

Did you replace the bulb yet? I'd do that first, if it still lights up dimly I would pull the bulb socket out and make sure the socket-to-bulb connection is clean/unburnt and the rear-of-socket-to-electrical-connector connection is clean/unburnt. If the socket and connector look okay, I'd try replacing the socket itself. Normally I wouldn't just throw parts at a problem, but the bulbs/sockets are dirt cheap so it's worth a shot. I'm not great at electrical diagnosis, so maybe another member has better advice on how to actually test these components with a multimeter. Honestly though, just try replacing the bulb first (if you haven't already).

 

Sorry for the late reply lol. Yea it was the bulb they broke after I put tailights in. Like they were old I guess I switched the the bulbs around. And turned out to be a bad bulb. Thanks tho I appreciate it.