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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Cosmetic and Lighting Modifications (exterior/interior) > Rear lights error



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      11-09-2012, 12:42 AM   #1
Koreyy
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Rear lights malfunction

I just replace the rear signal bulb to Leds and gives me both rear brakes and signal lights malfunctions. All of them working correctly now what is the problem? I even tried switch over to oem bulb but still gives me same error msgs. What can i do?
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      11-09-2012, 07:53 AM   #2
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HELP
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      11-09-2012, 07:57 AM   #3
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Ohh one more thing. Since signal lights are saying malfunctions, it blinks really fast when i give it on with Leds and Even thought swapped back with original bulbs now.
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      11-09-2012, 02:52 PM   #4
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Originally Posted by Koreyy
Ohh one more thing. Since signal lights are saying malfunctions, it blinks really fast when i give it on with Leds and Even thought swapped back with original bulbs now.
This will be easier with some more background info. Year/model? Particular LED bulbs? Resistor packs?
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      11-09-2012, 03:02 PM   #5
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This will be easier with some more background info. Year/model? Particular LED bulbs? Resistor packs?
sorry

its 08 335i coupe, was bought from forum member, no resistor.
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      11-09-2012, 03:06 PM   #6
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its because the LED's draw less power so it's throwing an error code.
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      11-09-2012, 03:11 PM   #7
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its because the LED's draw less power so it's throwing an error code.
i tried to swapped back with oem bulb also gives me same error.. so you think its just caused from leds?
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      11-09-2012, 06:40 PM   #8
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okay, imma get a odb cable later and code out these but does it matter if i keep these code for couple weeks since all lights working correctly?
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      11-10-2012, 06:44 PM   #9
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sorry

its 08 335i coupe, was bought from forum member, no resistor.
Like another user mentioned, the reason you're seeing errors is because the bulbs respond to fluctuations in current differently than incandescent bulbs.

You may have noticed some "flashing" when the car was first turned on. That is one of the two kinds of bulb checks that the car performs, either hot or warm. I'm a little out of practice (I'm at school away from my car) but one of the two tests to see if a bulb is burnt out, and the other tests to see if there is a bulb in the socket.

I'm not sure why you're still getting errors though, I bet clearing the error codes with INPA will clear it right up though.
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      11-10-2012, 09:23 PM   #10
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does the error look anything like this?
[IMG]http://i300.photobucket.com/albums/nn21/danfordman/BIMMER/2012-11-10_17-57-06_986.jpg[IMG]
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      11-10-2012, 10:27 PM   #11
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does the error look anything like this?
[IMG]http://i300.photobucket.com/albums/nn21/danfordman/BIMMER/2012-11-10_17-57-06_986.jpg[IMG]
yeah when i start the car.
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