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Old August 3rd, 2007, 07:56   #1
Join Date: Jul 2006
Location: Hall County, GA
Default how do I reset "defective bulb" warning light?

My tail light was replaced due to an "incident" with a pole. The Defective bulb light is still on. Do I need a vag com to reset it?
Hall County, GA
2010 Jetta TDI DSG "Rudolph"
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Old August 3rd, 2007, 17:27   #2
Join Date: Feb 2006
Location: Kansas City area, MO
Fuel Economy: TBD, new data forthcoming

I don't think there is need to reset it, I think you still have a light problem and don't realize it. (yet)
Check all your lights and see which one is the culprit.

Good luck!

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Old August 4th, 2007, 14:42   #3
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Join Date: Oct 2004
Location: LAKELAND, FL
Post bulb warning light

No you don't need VagCom to reset it> It will go out once you correct the problem. Suggestionh-the brake light contains 2 bulbs. Check there-happened on friend of mine -hooked up VAGCOM -said defective brake light!
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Old August 5th, 2007, 12:53   #4
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Join Date: Mar 2007
Location: Floyd, VA

make certain you have the right bulb in it, and also make certain that the wiring isnt damaged. it will look for a voltage drop change in the circuit, so either will cause the lamp out indicator to come on.
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Old March 9th, 2015, 10:55   #5
Join Date: Oct 2010
Location: Bloomington, Illinois
Fuel Economy: 38/43

So just ran across this thread... I have a 2010 Jetta and replaced the license plate bulbs with LED's. Since it's looking for a voltage change... the LEDs don't provide quite enough and it throws the error.
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