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Do-It-Yourself H.Q.
Share your DIY projects or ask questions about how to fix something on your own. Help fellow Bimmerfest members improve your wrench turning skills! All BMW DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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  #1  
Old 10-19-2005, 09:01 AM
bmwfreq bmwfreq is offline
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Location: Pleasanton, CA
 
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Mein Auto: 1997 328is
DIY "Brake Light Failure" CCM Fix!!!! YEA!

For all of you who have or will be replacing your incandescent tail lights with L.E.D. bulbs or housings, here is the mod to get rid of the dreaded "Brake Light Failure" error code that will be displayed on the on board computer.

Just go to: www.jjlcustoms.com

Choose the "How To" button from the menu buttons

You should see that this mod is the first one at the top of the mod list.

Happy modding!

JJL
a.k.a. BMW FREQ
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  #2  
Old 10-25-2005, 03:56 PM
jspit540i jspit540i is offline
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Mein Auto: 540i
check brake lights

yeah i changed over to the led tail lights and got the message too. i tried to got to that web adress you gave but it doesnt bring you anywhere that there is a "how to" button, i cant find the main menu or somthing but i would love how to get rid of that damn message, thanks
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  #3  
Old 10-26-2005, 12:49 PM
bmwfreq bmwfreq is offline
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Hum. Not sure what the problems is. Try it again.

Go to: http://www.jjlcustoms.com

At the top choose "How To" from the menu....and the tail light mod should be the first one at the top of the list.

Let me know if you are still having problems.

BMW FREQ!
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  #4  
Old 10-27-2005, 06:57 PM
jspit540i jspit540i is offline
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the web address brings me to a page thats selling a shift knob, there is no "how to" button or even a home page button, ?
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  #5  
Old 10-27-2005, 07:35 PM
bmwfreq bmwfreq is offline
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Location: Pleasanton, CA
 
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Mein Auto: 1997 328is
Directly under the JJL CUSTOMS logo in the top left corner of the web page in the menu bar, it says "How To." If you place your mouse pointer over this, you should get a link indication. Click here. This should take you to the "How To" page.

If not, there must be something wrong with the browser you are using.

i.e.: ---> Products | Gallery | How To | ........

Try again www.jjlcustoms.com
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  #6  
Old 03-18-2006, 09:26 AM
trizzuth trizzuth is offline
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Location: Boston
 
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Mein Auto: 2001 330i ZPP
Angry

Link does not work now, I can find the clickable HOW To Link on this, but it brings me to an error page. Can someone please post this solution here? I'm pissed cause I ordered these GORGEOUS post facelift LED Tails for my PRE-FACELIFT 2001 330i, and specifically asked the seller before if there would be any LCM reflash needed or error code generated. They specifically told me that no dash warning light would come on. So I installed then, DAMN THEY LOOK FINE, and instantly got the damned dash warning light. I am so pissed because I love them, but not enough to drive around with that error code.. HELP!
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  #7  
Old 03-21-2006, 01:15 PM
someguy someguy is offline
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Mein Auto: 95 ///M3
I did it, and got a 404 error
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  #8  
Old 03-21-2006, 01:56 PM
D.D. D.D. is offline
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Works fine....Just did the link!
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  #9  
Old 08-14-2006, 04:30 PM
two2huts two2huts is offline
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Question for ya.. I have a e46 2001 330Ci vs. the e36 mention on that link.. will this solution work on my aswell?
It seems pretty complex.. I've seen other solution that adds a resistor which seem simpler.. pros & cons?
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  #10  
Old 08-14-2006, 05:18 PM
bmwfreq bmwfreq is offline
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Well, let's address the "PRO'S" first:

PRO'S of adding Load Resistors:
  1. It's simpler
  2. It's quicker
CON'S of adding load resistors:
  1. Defeats the purpose of having LEDs. LED's draw a lot less current than incondecent lighting. Incondecent lighting generates a lot of heat.
  2. Load resistors, if you do not use enough of them WILL get very hot, which, there again, defeats the purpose of using LEDs.

I myself was more interested in the fact that the LED's did not get hot and would draw milliwatts as apposed to watts. I also liked the instant on instant off effect that the LEDs have.

Hope that sheds a little light on your question. If not, let me know.
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  #11  
Old 08-14-2006, 05:30 PM
two2huts two2huts is offline
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So this will work on my e46? It's a 330Ci February 2001. I thought I read somewhere that you could reset/reflash the LCM to provide the correct wattage and therefore allow it to function as an LED light should. Do you know if it's something I can do on my model/month/year?

I totally agree with what you said about not wanting to dissapate the extra power through load resistors... I'm just trying to weigh up the cost/benefits.
Thanks.
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  #12  
Old 08-14-2006, 05:35 PM
two2huts two2huts is offline
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Oh hey.. I just noticed you're from Pleasanton CA.. do you know of there are any good places around the Bay Area where I would be able to get my LCM reflashed (if that's an option for me).. thanks.
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  #13  
Old 08-14-2006, 05:56 PM
bmwfreq bmwfreq is offline
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Hmmmmm. The LCM reflash thing sounds a little far fetched to me. Not that it COULDN'T be possible, but it would really suprise me if you could change the voltage output to the tail lights simply by reprogramming the LCM.

You might ask someone on the forum that may be a little bit better schooled on the E46's than I am. I can pretty much tell ya anything ya wanna know about the E36's, but the E46's I am not quite up to snuff on yet.
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  #14  
Old 08-16-2006, 10:23 AM
two2huts two2huts is offline
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So finally got an answer to this.. I spoke with several BMW specialist around the Bay Area (inlcluding the dealers) - here's the info.
Most the newer e46s have an LCM that should automatically recognize an LED vs. a Bulb and provide the correct power to the tail lights - avoiding the error. Older models needed to have the LCM re-flashed to recognize the LEDs.
The additional confusion I had with my car was that the model/year/month was on the cusp of that change. 2002 e46s should be able to automatically recognize an LED - however it depends on the month - any models dated earlier than 10/2001 are condsidered 2001 and this was confusing many of the service engineers I spoke with, incuding the dealership at SF BMW who wouldn't even touch this car since it's an aftermarket install and my warranty had expired.
Anyway the job cost $55 and took 30mins to complete.
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  #15  
Old 08-16-2006, 11:00 AM
bmwfreq bmwfreq is offline
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Exclamation

Awesome! Glad ya got it taken care of. And thanks for sharing the E46 knowledge. Enjoy the new LED tail lights.

NOTE: We should probably add one caveat here though, for those of you who are not sure if your E46 will recognize the difference between LEDs and regular light bulbs . If you plug an LED tail light in that has no load resistors, and the LCM is not capable of detecting the difference, you are going to blow/burn out all of the LEDs in your new LED tail lights . So, be certain before doing anything .

Happy motoring!
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