Turning siganl is still dim after being replaced - Hyundai Forums : Hyundai Forum
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post #1 of 8 (permalink) Old 06-16-2017, 04:36 PM Thread Starter
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Turning siganl is still dim after being replaced

hi guys so i have a 2011 hyundai sonata gls 2.4 and i noticed my right turning signal bulb is a lot more dimmer than my left and when i indicate to turn left it blinks fast. so i took it to a mechanic and had it replaced but the light is still dim. i changed it again the next hour and its still dim. what could be the issue?
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post #2 of 8 (permalink) Old 06-16-2017, 05:01 PM
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Just to clarify...your right turn signal lamps (all of them?) are dim and when you indicate to the left the right lamps blink fast?
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post #3 of 8 (permalink) Old 06-16-2017, 05:13 PM Thread Starter
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no just the turning signal bulb on the front right. and when i mean blink fast i mean on the dash inside the car.
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post #4 of 8 (permalink) Old 06-16-2017, 05:18 PM
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Have you checked all your left hand turn signals are working? The fast blinking usually means a bulb is out.

As for the front right lamp being dim, the most likely cause of that would be high resistance in one of the wires. Most often it's the ground side of the circuit but you can confirm with a simple voltage test. Nice of the mechanic to return your car to you with the same fault it was given to him to fix.
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post #5 of 8 (permalink) Old 06-16-2017, 05:24 PM Thread Starter
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i know right, so what part do i need replaced. my left high beam, daylight, and turning signal are perfect. my right high beam and day light are aslo great but the turning signal is dim and i changed it 2 times today. im not a big mechanic guy but what do you mean about ground? also do you know what this could possibly cost me to fix? also could this be a fuse issue?
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post #6 of 8 (permalink) Old 06-16-2017, 05:50 PM
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Originally Posted by Muhaman Halawani View Post
im not a big mechanic guy but what do you mean about ground?
Each lamp on the car has two wires, a power supply and a ground. The most common reason for a lamp to be dim is an unwanted extra resistance in one of the wires. The fault is more often on the ground side of the circuit because the ground wires bolt onto the car body and the bodywork around the bolt will often start to rust which causes a poor connection between the ground wire and the car body. The poor connection creates a resistance to the electrical current flow causing the lamp to be dim. But it could also be caused by corroded connections else where in the circuit with means it could also effect the power supply side too. You do a voltage drop test on each side of the bulb to determine what part of the circuit is faulty.

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also do you know what this could possibly cost me to fix?
I'd guess about an hours labour if your mechanic is any good.

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also could this be a fuse issue?
I think that's unlikely since the fuses supply power to all the right hand lamps and your only having a problem with one of them.
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post #7 of 8 (permalink) Old 06-16-2017, 06:10 PM Thread Starter
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is this something i could do myself? if so where can i find a tutorial or if you could link me to one, thanks
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post #8 of 8 (permalink) Old 06-16-2017, 09:59 PM
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is this something i could do myself? if so where can i find a tutorial or if you could link me to one, thanks
Here's what he means by checking grounds. It's a different car but same concept of your issue.
https://youtu.be/qL0xHzzR1Vk

Sent from my Nexus 6P using Tapatalk

-Michael
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