BCM code b2137
Road Master
Joined: Apr 2015
Posts: 973
Likes: 332
From: USA
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.
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.
Last edited by 77dream; Apr 13, 2015 at 03:28 AM. Reason: added welcome
Road Master
Joined: Apr 2015
Posts: 973
Likes: 332
From: USA
Mine has a sticker on the back "3H motorcycle Headlight" which I bought through Amazon. Triangular in design with three large chips on it, two for low and another for high.
Put it in early this year, have around 500 miles with it.
Put it in early this year, have around 500 miles with it.
Stage I
Joined: Oct 2015
Posts: 1
Likes: 0
From: NC
New to the forum. Just curious if you're managing with the new LED headlight and the BCM 2137 error code due to installing the LED headlight. I installed an LED I bought on Amazon (came from China with no brand labels but looks just like the H-D Haymaker). I got the error code (flashing light) when I put the light on high beam this evening. Has this created any long-term problems for you other than the annoying error code? Thanks.
Advanced
Joined: Sep 2011
Posts: 95
Likes: 1
From: Avon
My son is having this problem on his 2016 CVO Street Glide after installing an LED headlight. Can you be more specific on what "high power diode" to install and where to we can get one? Thanks!
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4th Gear
Joined: Jun 2018
Posts: 8
Likes: 0
From: Curitiba
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.
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.
You post was from 2015, do you still have this issue? Did it cause any other problems in the long run?
Outstanding HDF Member
Joined: Feb 2015
Posts: 2,414
Likes: 433
From: Arkansas
A lot of the aftermarket headlamp makers have a CANBUS adapter that does just that, it is little more than a diode that goes inline with the headlamp connector specifically to stop the low voltage going back to the BCM.