05 Spectra5 turn signal problem - Kia Forum
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post #1 of 13 (permalink) Old 07-02-2010, 07:34 PM Thread Starter
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Default 05 Spectra5 turn signal problem

Hey gang. I have an issue with my left turn signal.

The indicator on the dash would blink fast giving me the impression a bulb was bad. But, both front and rears were infact working, just flashing very fast. The front amber bulb wasnt as bright as it should be (to me at least. I replaced both the front and rear left turn signal bulbs anyhow.

Started the car, flipped on the signal, worked fine. Until I turned on the headlights then the indicator was back to blinking fast again. Checked the bulbs, they were fine and working, just blinking fast like before. And again, the front left turn signal bulb doesnt seem as bright as it should be. But i could be wrong.

Any ideas as to what this problem could be?
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post #2 of 13 (permalink) Old 07-02-2010, 10:25 PM
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Follow the wiring harness from the headlight (and parking/turn signal lamp) you will find a "branch" off of the harness going to the body(ground) of the car. There is a "branch" going to ground on BOTH sides (left/right) behind the headlights. If where the wire lug is bolted to the body is corroded (may look good) under the bolt or serrated lug you will have the problems you are describing (dimmer lamp and fast flashing).
When the headlights are turned on they draw more current through the same ground return wire as the turn signal lamps and the corrosion limits the amount of current available to the lamps. This is similar to the use of cheap "jumper cables" in winter....the headlights dim as you crank the engine over due to the small diameter copper wires (or aluminum wires in the real cheap cables).
You can "test" if the ground wire(s) are bad by running a wire from the negative (-) (black) terminal of the battery to the ground wire of the turn signal/parking lamp. If your turn signal lamp gets brighter and the flash speed slows to normal....go looking for that bad ground. Remove the bolt and scrape the area of the body where it was bolted, then smear silicon grease (available at Advance & AutoZone) all over the area, wire lug. and bolt. Then re-assemble. You should now have solved your problem.

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post #3 of 13 (permalink) Old 07-03-2010, 02:15 PM
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Thumbs up

Welcome beeanner. I agree with the above post. Do as DavesSpectra suggests, bad ground connections cause all sorts of these kinds of problems. Good on ya , 'Bad ground Dave.'

TAKE YOUR TIME, THINK IT OUT, DO IT RIGHT, DO IT ONCE!! original quote by me as far as I know. :rolleyes:

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post #4 of 13 (permalink) Old 07-11-2010, 01:39 PM
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Mine does the same thing when using the left signal whether the lights are on or not. Same as you, I changed the bulb (total PITA because you have to take the battery out to get to it) and got the same result. I suspected a grounding problem somewhere, but just gave up. If you figure it out, let us know please!
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post #5 of 13 (permalink) Old 10-31-2011, 07:47 AM
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Default 2005 Spectra - leftr turn signal

Any further thoughts on what could be causing the fast flashing of the left turn signal? Changed the bulb, cleaned the ground contacts to no avail. Mechanic said change the BCM but not willing to spend that kind of money.
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post #6 of 13 (permalink) Old 11-01-2011, 09:46 PM
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Not to state the obvious, but are you using the correct bulb numbers? I saw the same issue on my pass. side front turn and found the PO had used a 2057 bulb instead of the 2357. Just something to consider.

Mike AKA Paco
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post #7 of 13 (permalink) Old 11-04-2011, 08:43 PM
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I am having the same problem on my 05 EX, but cannot find the ground point you are talking about. There is a bolt that might be a ground behind a plastic cap inside of a plastic cup on the inside of the fender with a 10mm bolt. I have taken it off and cleaned it and put bulb grease on it, still to no avail. The same problem exists.

Could it be a problem in the combo switch on the steering column?

Thanks for any help you can give.

Is there an online ground point schematic you know of I can look at?
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post #8 of 13 (permalink) Old 10-01-2012, 10:33 PM
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ok my problem is this my rear right turn signal went out (burned out) so after about a week I was finally able to change it. So I bought a new bulb and put it in and it still didn't work. Any suggestions?
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post #9 of 13 (permalink) Old 12-19-2012, 06:55 PM
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Default Bulb Problems

I had same issue with the left turn signal. Fast blink with dull bulb. I replaced the bulb but the same thing. So I cleaned the bulb socket contacts with a small flat screwdriver , sprayed it with electrical contact cleaner and put a little bulb grease. Worked great ! Used same old bulb!!
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post #10 of 13 (permalink) Old 06-26-2013, 12:10 PM
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Default Loose Connection - Needed a light thump

I had the same problem with a fast blinking right turn signal. I turned the signal on and checked - sure enough the front right bulb wasn't blinking. A gave the quarter panel a good thump with the palm of my hand and bingo - she works!

I will take a closer look when I have more time but no doubt there is a bad connection somewhere.
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