Hello,

I have a sonata GLS 2013. My driver front turn light blinks but is very dim. I changed the light bulb and it did not help. When I engage right turn signal everything works well, but the left one blinks twice as fast and the front bulb is very dim. What may be the problem and how to fix it?

Thank you in advance

 

The problem most likely is a poor or non existent ground for that particular light assy.

Suggest you look for the wire from that area that connects to a ground on the frame or sheet metal. Loosen it and move it around while the signal lamp is activated and you should see some difference. Let us know if that solved the problem, thanks.

 

Thank you very much for this. It sounds like a great idea. How I can find that ground wire? Do I need to remove the light assembly?

 

They do not run grounding wires from one location, would use too much wire.

What is usually done is, they will run a wire from the negative battery terminal to someplace on the sheet metal of the vehicle and now all the sheet metal is available to obtain a necessary ground for various parts.They will usually have a wire coming from the sheet metal ,radiator frame etc., and run that ground wire to the lamp.
The power to operate the lamp comes from the controlling part, switch , module etc., provides power to the lamp bulb and the ground side can come from anywhere on the surrounding metal to the lamp assy. Because a lot of those grounding points are exposed to weather and moisture they can become corroded and put resistance at the connection and most times a little cleaning takes care of the problem.

 

I have an 07 and I’m having the exact same problem