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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Cosmetic and Lighting Modifications (exterior/interior) > Correcting bulb out errors



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      10-13-2010, 02:25 PM   #1
SharpPointyStick
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Correcting bulb out errors

Bought some P90 Headlights c/w LED AEs and was running some test prior to installing, I am getting the following bulb out errors;

Parking Light Bulb Out Error (Both sides)
  • The LED AE use the parking light for power
  • This error occurs during initial system testing
  • Self-clears when LED AE are turned on for a few seconds
  • Does not return when car is running, even when switching LED AE on/off.
  • Does not clear if LED AE are not turned on

While it does self-clear this is a issue as I typically leave headlight switch in Auto, and during daylight the LED AE are not automatically turned on.

Looks like each LED bulb draws 0.3w, at 8 bulbs per headlight that equals 2.4W. The original parking light is 5w, therefore if I added 2.6 watts to the system hopefully this should trick the BMW computer. At 13.8V I will need ~73 ohm/3+w resistor. Anyone know a good source for resistors?

EDIT - Looks like Digi-key has a 75ohm/5w resistor I will try.

The other error is;

Lo-Beam Bulb Out Error (Both sides)
  • Installed HID lights c/w Error Cancelling module
  • Error does not occur during initial system testing
  • This error only occurs whenever the Lo-Beam lights are energized
  • Self-clears within a few seconds of being energized

Anyone know of another error-cancelling module which does not have the above issue at start up.

Last edited by SharpPointyStick; 10-13-2010 at 02:50 PM.
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      12-02-2010, 02:51 PM   #2
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Just following up on this, the 75ohm/5w resistor works to clear the parking light errors
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      12-02-2010, 07:16 PM   #3
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According to my math, this should correct the bub out error on the low beams;

OEM Halogens = 55W
HID = 35W
therefore need to add 20W to the circuit to trick the on-board computer to seeing a total of 55W.

At 13.8W, need to added a 10 ohm/20watt resistor in parallel.

Going to order one of these to test;

http://search.digikey.com/scripts/Dk...me=12M16-10-ND
http://search.digikey.com/scripts/Dk...MP820-10.0F-ND
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      12-02-2010, 08:05 PM   #4
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I have disabled my light errors via coding as using resistors burned my light control module and I would not recommend it.

see post # 327 worked for me to disable cornering light errors should work for you also.

http://www.e90post.com/forums/showth...451145&page=15
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      12-03-2010, 05:48 PM   #5
SharpPointyStick
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Quote:
Originally Posted by xxxjecxxx View Post
I have disabled my light errors via coding as using resistors burned my light control module and I would not recommend it.

see post # 327 worked for me to disable cornering light errors should work for you also.

http://www.e90post.com/forums/showth...451145&page=15
Curious, why do you think adding resistors burned your light control module?
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