BCM sync for 2022 models

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Nov 25, 2022 | 01:18 PM

#21

MRFREEZE57

Seasoned HDF Member

Joined: Jun 2014

Posts: 5,465

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From: pacific northwest

Quote:

Originally Posted by d_slat

Wiring it in series won't work, you would have to wire it in parallel with the led.

You are correct, my mistake, series would increase resistance and make the issue worse.

Nov 25, 2022 | 06:09 PM

#22

d_slat

Road Warrior

Joined: Aug 2008

Posts: 1,306

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From: Sheboygan, WI

Quote:

Originally Posted by Andy from Sandy

In the other threads I have read the only problem is with the dash light and nothing else.

With reference to a wiring diagram each turn signal is powered by its own wire from the BCM. The indicator on the dash is a CAN bus command to the speedo and the speedo sends the power to the indicator or repeater light.

So after the BCM has done its thing for LED turn signals a problem exists with the repeaters.

my guess, it's not that simple. The bcm probably thinks there's something wrong with at least one of the turn signals and is telling the speedo to fast flash the dash indicators.

Nov 25, 2022 | 10:25 PM

#23

rideonva

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Joined: Jul 2021

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From: NoVA

I’d guess the problem is only with aftermarket. I’ve put H-D LEDs front and back on my 22 RG and BCM learned just fine.

Nov 25, 2022 | 10:32 PM

#24

mjwebb

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Joined: Jan 2008

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From: State of Confusion

Quote:

Originally Posted by rideonva

I’d guess the problem is only with aftermarket. I’ve put H-D LEDs front and back on my 22 RG and BCM learned just fine.

Nov 26, 2022 | 08:37 AM

#25

shore

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Joined: Oct 2010

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From: Port Orange, Fl

Quote:

Originally Posted by rideonva

I’d guess the problem is only with aftermarket. I’ve put H-D LEDs front and back on my 22 RG and BCM learned just fine.

never seen those?

Nov 26, 2022 | 09:56 AM

#26

MRFREEZE57

Seasoned HDF Member

Joined: Jun 2014

Posts: 5,465

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From: pacific northwest

Quote:

Originally Posted by rideonva

I’d guess the problem is only with aftermarket. I’ve put H-D LEDs front and back on my 22 RG and BCM learned just fine.

Tested a standard lamp yesterday from the OEM signal, is around 1 ohm, am guessing the HD LED signals use a resistor to balance the load.

Nov 26, 2022 | 10:05 AM

#27

Andy from Sandy

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Joined: Sep 2017

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From: England

A turn signal incandescent bulb is around 21W. Its resistance would be around 7 ohms.

Nov 26, 2022 | 11:59 AM

#28

mjwebb

Seasoned HDF Member

Joined: Jan 2008

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From: State of Confusion

Quote:

Originally Posted by shore

never seen those?

they work great, look great and holding up well since introduced in 2018

https://www.harley-davidson.com/us/e...rts/p/67801148

https://www.harley-davidson.com/us/e...rts/p/67801150

Last edited by mjwebb; Nov 26, 2022 at 12:00 PM.

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Nov 26, 2022 | 02:32 PM

#29

Redrodyankneck

Thread Starter

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Joined: Mar 2016

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From: Eastern NC

Quote:

Originally Posted by mjwebb

they work great, look great and holding up well since introduced in 2018

https://www.harley-davidson.com/us/e...rts/p/67801148

https://www.harley-davidson.com/us/e...rts/p/67801150

Checked out the link and in the 1st review someone said they were 3 times brighter than custom dynamics, hard to believe cause CDs are very bright.. I was going with HogWorkz because of the sequential feature which is pretty cool. I can't live with the hyper flash dash lights so I'll try the HD inserts.

Nov 26, 2022 | 02:51 PM

#30

mjwebb

Seasoned HDF Member

Joined: Jan 2008

Posts: 13,652

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From: State of Confusion

Quote:

Originally Posted by Redrodyankneck

reviews....how did they measure 3 time brighter?..LOL...CD, as folks know, have a great following and warranty, lots of happy customers..I have friends using them..one set failed but were replaced for free no questions asked...but I bet you will really like the HD ones..they are really bright and only a one year warranty but LEDs in general are long lasting and mine have been fine for at least a couple years now..if after a few years one goes out...well, $125 bucks for more years ain't going to break the bank...and most importantly perhaps, the swap should be seamless and transparent in operation

edit: noticed the below in HD online instructions in the Details section of the linked page ..wasn't necessary for my 2020 but like it says..if needed follow the procedure

"After installation of new turn signal inserts, verify proper operation. If turn signals appear to flash quickly, BCM will need to "learn" the new current setting of LED inserts. To put BCM in this "learn" mode, flash hazards for 30 seconds. Then turn hazards off and recheck flash rate of turn signals."

Last edited by mjwebb; Nov 26, 2022 at 03:00 PM.

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