My 2004 chrysler sebring is having turn signal problems. The left turn signal does not work when head lamps are off, and when head lamps are on they flash simultaneously with right signal as if hazard lights are on. What is this problem, how do I fix it and any idea of cost for repair or parts

By a repair book, i myself like haynes...it will show you the wiring diagram...if you don't think you can do it then, you might want to take it in to be looked at.....try youtube maybe someone else has the same problem

Have you checked for any bad bulbs that need to be replaced. Check the bulbs and replace if needed. If it's not that maybe be a bad ground wire connection or bad switch. Hope it's just a bulb. If it's a bad ground that may be harder to see but check the wires also for any damage from rubbing. If you see a ground connector to the body or frame and it's covered in rust. That may be your problem. Clean the area from rust and reattach and try the lights again. A sign a ground is bad. The lights may be dim in that area the lights don't work.