Ok I'll try to xplane this good. So when you turn the headlights on the left turn indicator light comes on and stays on, not the outside lights just the indicator, when you turn the blinker on the outside lights stay on and dont flash. when the headlights are off the indicator only comes on when you do the blinker but i still doesnt flash. the right side works fine it flashes, and the light only comes on when it's suppose to, does anyone know whats going on. Is it the headlight switch or the turn signal switch or something else, I'm really not sure. Any help would be great

 

Check all the turn signal bulbs first.

 

If its not the bulbs it could possibly be a relay.

 

Remember this when dealing with electrical issues on a vehicle.

K keep
I it
S simple
S stupid (not a reference to you)

Always look at the most obvious things first and go from there. Bulbs, flasher relay, grounds, switches.

 

It's most likely a bad bulb on the left side. They're supposed to be dual filament bulbs. Check them carefully. One is either bad or incorrect, or the socket is bad. IMO
Dan

 

I replaced the bulbs yesterday at work, the wires at the bulb have battery voltage and the ground tested good with a wiggle test, I could be wrong but the right flashes so I think that the flasher relay is good, I'm getting power at the light when the switch is on, if a relay was bad i dont think that it would be getting any power, but again this is only a guess, is there any way to test the blinker switch?

 

The right side flashes so everything checks out except the left side bulbs as I stated earlier. I went through this several months ago with someone else. They finally checked and the bulbs weren't dual-filament type, and when the correct ones were installed the blinkers worked fine.
Dan

 

I would try a new relay. they are like $8. I just replaced mine two days ago because my right blinker would blink twice then just stay on but he left one worked just fine. The new relay fixed the problem.

 

Single filament bulb, I'm such a moron

 

I tried to tell you more than once.

Dan