no brake lights!?

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May 22, 2016 | 04:08 PM

Lucky1359

Thread Starter

Cruiser

Joined: Aug 2012

Posts: 203

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From: Pittsburgh, Pa

no brake lights!?

I have an 04 Road King Custom. I now have Bad Dad LED tail lights which function as run/stop/turn. I have added a Bad Lands load equalizer and Harleys plug and play adapter to allow the 3 functions. I currently have absolutely no brake lights. The relay clicks only when I grab the front brake but still no lights. I have checked all the fuses, they are all good. I unplugged the rear brake switch and jumped it with no change. The running light and turn signal functions work just fine. I am running out of things to check other than each individual wire to see if there are any cuts of nicks in them. does anyone else have any ideas?

May 22, 2016 | 04:16 PM

Low budget Dan

Road Master

Joined: Dec 2012

Posts: 1,240

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From: Getzville New York

Did you check your accessorie fuse that is also used for this function

May 22, 2016 | 04:21 PM

Lucky1359

Thread Starter

Cruiser

Joined: Aug 2012

Posts: 203

Likes: 11

From: Pittsburgh, Pa

Yes, I checked all the fuses. I even pulled them all 1 by 1 then replaced them to see if another system was interfering. I've been stuck on this for 2 days, reading as much as I possibly could.

May 22, 2016 | 04:22 PM

Hate Work

Road Warrior

Joined: May 2015

Posts: 1,718

Likes: 159

From: Maryland

Quote:

Originally Posted by Low budget Dan

Did you check your accessorie fuse that is also used for this function

+1. From experience. On my bike the wiring schematic does not show the 3 black wires splitting to feed the turn signals and running lights. I found out the hard way that one of the black wires is not ground, but hot. Blew the accessories fuse. Replaced it with another 15A fuse and all is well.

May 22, 2016 | 04:23 PM

skeeter 250

Cruiser

Joined: Nov 2009

Posts: 115

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From: on earth

I sent you a pm. I don't type to well. I will try to help you out over the ph. I sent you my number.
Wes

May 22, 2016 | 04:26 PM

Hate Work

Road Warrior

Joined: May 2015

Posts: 1,718

Likes: 159

From: Maryland

Quote:

Originally Posted by Lucky1359

Yes, I checked all the fuses. I even pulled them all 1 by 1 then replaced them to see if another system was interfering. I've been stuck on this for 2 days, reading as much as I possibly could.

I just had a problem with my LED's where only one turn signal was not working correctly. Would work when standing still but did not work when running. Turned out I needed an isolated ground for my license plate light which was pulling resistance from the ground. That was enough to affect the turn signal LED. They are funny as there is so little current needed to run them. Any nick or cross wire will do it....
Oh, another thought. Some LED's are polarized. If you have a two wire for the brake light, switch the two leads on the lights and see if that helps.

May 22, 2016 | 04:41 PM

Vernal

Club Member

Joined: Apr 2013

Posts: 7,681

Likes: 8,413

From: Utah

Check your Cruise/Brake fuse again. If it's good pull the brake relay, turn ignition on and check Socket 4E for 12V that's the O/V wire from the Cruise/Brake fuse.
Either brake switch should give you 12V to socket 3E on the relay base, R/BE wire.
If everything looks good unhook connector 7b on top of fender under the seat and check the R/Y for 12V with brakes on, is that where the Bad Dad is connected?
The rear brake switch should have 12V on the O/W wire from the accessory fuse.
Good Luck
Bill