turn signal/ cruise control and brake lights FUBAR
 

went to use cruise control and it didnt work. attempted to make left hand turn and my green light turned on and stayed on. right light blinked no problem. as this bothered me, i went to pull over and when i hit my hazard lights, they just stayed on solid (no blinking). i stepped out and noticed my brake lights were on so checked my floormat--- no problem there. i hit the bypass button to turn off the auto headlights and the break light went out, and turn signal along with hazards started working again. manually turn on the headlights and again, no blinking except for the right side. also, when i try signaling the left side, a noise comes over the speakers. Possible bad turn signal switch?? ANY HELP please? this is a 2003 blazer ls. Thanks all!

OK, so after spending a little time screwing with this thing, replacing light bulbs and replacing the turn signal switch the final fix was this: Turns out the connector for my trailer corroded and caused all my problems. i found a similar problem on a dodge website, went out to my blazer and just cut off the trailer hitch plug. Immediately the problem was solved. I suppose i needed a new switch anyways because the old one was fadeing... lol. there you have it!