2002 mitsubishi eclipse, turn signals wont turn off one or the other is on, bright lights won't turn off even when the headlight switch is set to off, ticking coming from the fuse box

SOURCE: Headlights Not Working, Brights and Turn Signals Work

This is cuased by the multifuntion switch that is located on the steering column. It is the swith with the headlight dimmers on it.

You just need to remove the steering column bezels and replace the multifunction switch.

SOURCE: headlights wont come on and bright lights won't stay on hold bright light switch and blower works

I had the same problem. The solution is simple; the ignition switch needs to be replaced. This is an easy do-it-yourself project. Here are instructions:
http://forums.vwvortex.com/zerothread?id=2532481
Check for a switch on ebay, they are about $15. After 10 years they wear out.

SOURCE: 2002 Yukon XL - No Headlights

Check the headlight fuses in the engine fuse box compartment. Not sure if the lights have relays, but they will be clearly mark in the inside of the top cover for location.

SOURCE: headlights wont work on 2000 chevy silverado

Headlight switch on dash???

SOURCE: 2002 Saturn, cannot turn off headlights unless I

It sounds like you have a short within your Headlight Switch.....It's kind of difficult to replace, because you have to disable the airbag system....But just take it to a shop an um quit sure they can do it with no problem......You can also try the relay first because its cheaper...But your problem may be your switch itself...Goodluck