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BCM code b2137

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Old Jul 12, 2018 | 07:16 PM
  #11  
Old Dog71's Avatar
Old Dog71
Stage I
Joined: Jul 2018
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From: Kansas City
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Originally Posted by 77dream
The code is from the BCM (body control module) and indicates a voltage present on the low beam circuit when high is turned on. I got that error running a LED bulb that turns on both the low and high beam when high is selected.

I believe it is a small voltage fed back on the low beam circuit from the LED that the BCM senses.

It hasn't caused me any problems as yet other than generating the code.

Oh ya, welcome to the site.

This is good to know, I had the trouble light come on a couple times (from what I remember) when it was hot - 100 + degrees outside, thought it may have been heat related. When I pulled the code it was in the "BCM" (?, second section) and I read it as 62137.....took a minute to figure out the "6" was a "b". I have had a LED (aftermarket brand, but recommended by dealer) in my 2015 Freewheeler almost from day one. I almost always run on high beams since most of the time I ride during the daytime.
 
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Old Jul 4, 2020 | 08:41 PM
  #12  
hdsportsrer's Avatar
hdsportsrer
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Joined: Jun 2020
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From: Shelby
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I realize this is an older post, but I see a similar post pop up from time to time so I thought I would post my fix. When I installed my LED headlamp, after riding for a while, my high beam indicator would illuminate and code 2132 would set. Riding with the high beam on for a while would set the red trouble indicator with code 2137. After returning the first LED headlight for a replacement and having the same problem, then trying a different, more expensive LED headlamp, I started troubleshooting the actual reason. Turns out the LED headlight assembly has a small voltage feedback between the high and low beams. As the lights heat up, the feedback voltage increases until it reaches the point of triggering either the low or high short to voltage codes above. Turns out the simple fix is to install a resistor with low enough resistance to bleed the feedback current but not cause a large draw on the circuit. A 2.2k ohm resistor has done the trick for me. I opened the back of the headlamp connector and soldered a 2.2k ohm 1/4 watt resistor between the low beam terminal and the negative terminal and another between the high beam terminal and the negative terminal. I haven’t had any problems in the 2 years since.
 

Last edited by hdsportsrer; Jul 4, 2020 at 08:43 PM.
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Old Mar 29, 2023 | 09:31 AM
  #13  
CSmalls's Avatar
CSmalls
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Joined: Mar 2023
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From: MI
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New here! What 2.2k ohm resister did you use?
 
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