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Lighting Forum
Angel Eyes, DDEs, lighted rings, Clear Turn Signals, LEDs, Xenon, HID, or Bi-Xenon. If it lights up and you want to discuss it, post here!

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Old 04-15-2013, 12:17 AM   #1
adamdifilippo
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Corner flicker

Hi guys,
I've had this problem for about a year now and it's finally annoyed me too much.

My corner lights (all four, together) will flicker once every couple minutes. I have a 2001 M3. I installed the LED bulbs and resistors from khoa. The resistors are wired so that one side of the resistor is going to the positive and one to the ground of the socket. Resistor for each corner light. No fast blink or bulb our warnings. Just the flicker. When the flicker happens, it does not show on my dash (directional indicator on dash nor hazard button light up).

The only thing that I can think of is a bad resistor somewhere. But a resistor only increases the load, why would it cause the lights to flash? And wouldn't I get a bulb out warning?

Anyone have any ideas? Thanks guys.

Note, I have LED side markers also. But no resistors there (don't think you need them?)

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Old 04-15-2013, 02:17 AM   #2
turbo_f22_pilot
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What you are seeing is the system performing the bulb check.
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Old 04-15-2013, 10:51 AM   #3
adamdifilippo
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Quote:
Originally Posted by turbo_f22_pilot View Post
What you are seeing is the system performing the bulb check.
That's what I was thinking. The car has to give the lights the electricity to flash, it had to come from somewhere. But why does it happen (doesn't happen with regular bulbs) and how can I make it stop?

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Old 04-15-2013, 02:23 PM   #4
sillieidiot
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like turbo said, the car will periodically send a signal to check the bulbs. the reason why you actually see the flicker with LEDs vs. normal bulbs is because LEDs need very little energy to light up. so it flickers. a normal bulb, wouldn't even turn on with that little bit of power so you see nothing.

you can turn it off, by disabling hot checks through programming. otherwise just live with it like many others have.
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Old 04-16-2013, 03:54 PM   #5
adamdifilippo
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Quote:
Originally Posted by sillieidiot View Post
like turbo said, the car will periodically send a signal to check the bulbs. the reason why you actually see the flicker with LEDs vs. normal bulbs is because LEDs need very little energy to light up. so it flickers. a normal bulb, wouldn't even turn on with that little bit of power so you see nothing.

you can turn it off, by disabling hot checks through programming. otherwise just live with it like many others have.
Thanks for the explanation. Will have to look into getting it disabled.
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