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Member
Rear Bake Light Problem
I've recently developed a problem with my brake lights. When the ignition is on there lit up like the brakes applied.
Recommended by a friend to remove F5 fuse and see if lights still light up. They do. So they're getting power from somewhere, I just don't know where from.
Has anyone experienced this problem and how did they rectify it please?
All and any assistance appreciated.
Regards :-)
I never said I was bright
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Very Active Member
What year RT?
If you pull up on the brake pedal, do the lights stop?
The Power of Logic.
Start Thinking.
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Very Active Member
I had that issue, somewhat.
Mine was just the right light (2016 F3 Limited). When the ignition was on it was lit like the brake was on. When the ignition was off and you pressed the brake pedal, it lit like a running light.
Dealer looked at it and fixed it. Two wires were crossed in the wiring harness for the right rear light. Changed the wires that were crossed and now it's fine.
2020 Chalk, RT Limited, Dark and matching RT622 trailer and BRP hitch. BRP Drivers Backrest, Auxiliary Light, Garmin Zumo XT, GPS Support, RT Rear Panel and Travel Cover. Spyderpops LEDs on fenders, mirrors, saddlebags, top case and RT rear panel. Spyderpops Rock Guard. BajaRon Swaybar, Wolo Bad Boy horn, Freedom Windshield, Elka Shocks.
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Just went through this pm me and ill give some detail by phone
Sent From my Note 5
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Mine was an accy harness
Sent From my Note 5
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Member
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No problem
My trouble was an accessory add on that caused the problem.
It was allowing voltage to flow when it shound not have.
2 wire light being fed by 3 wires. Ground
Running
Brake
The brake power was feeding the running side
Sent From my Note 5
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There was a diode that was bad causing the brake lights to light up even when the pedal was not being pushed
Sent From my Note 5
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Very Active Member
Curious. ....
Have you had/done any lighting modifications..?? there may be a problem in their installation...LED's can be a handful with the polarity and all.
Gene and Ilana De Laney
Mt. Helix, California
2012 RS sm5
2012 RS sm5 , 998cc V-Twin 106hp DIY brake and park brake Classic Black
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Member
Originally Posted by CapeSpyder
No problem
My trouble was an accessory add on that caused the problem.
It was allowing voltage to flow when it shound not have.
2 wire light being fed by 3 wires. Ground
Running
Brake
The brake power was feeding the running side
Sent From my Note 5
Yes I've added 6 pairs of leds. being wiser after the fact, I've seen a video saying don't do it and also spoken to someone who ran an extra loom to accommodate leds. Once this is sorted, that's my plan too.
How did you rectify the problem CapeSpyder?
I'm loosing the will to live here
Last edited by ghwerrig; 07-04-2016 at 03:37 AM.
I never said I was bright
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I solved it by replacing the diode. once I had identified it. I had to take all the connections apart behind my right tail light, as that's where all the rear led connections were.
i started plugging things back together till i found my lights come on bright. then i knew what wire or light to work with.
most kits over here, to get 2 wire lights to go running/brake it takes a y cable that cable has 2 diodes and a resistor in it.
1 diode and resistor for the running
1 diode for the brake
these connect together into one wire to feed the + to the light
look at the last page of the document it has a diagram
http://www.customdynamics.com/instru...INTEGRATED.pdf
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Member
Thanks CapeSpyder.
My problem is even with all the rear leds disconnected I still get the brake clusters fully illuminated when the ignition is on.
With ignition off, the clusters illuminate as normal.
So, brake switch is okay. That's been tested.
Brake clusters seem to work okay, that's been tested.
But now all of a sudden the cluster is fully on when ignition is on.
It could be a faulty rear harness and the bike is a 2011 so weather,
deterioration may have compromised the harness somewhere.
Regards
I never said I was bright
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Then with your year i would find where the trailer connector plugs in and disconnect the 2 connectors as this will remove the rear from the system on the 2016 my connector is under the the seat on the left side
Sent From my Note 5
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Very Active Member
It is either a cross connection in the wiring harness between the running lights and brake light circuit or a back feed from one of the tail/brake bulbs not connected to common ground.
I would first remove each of the tail/brake bulbs, one at a time, then both and see if the problem is fixed. If removing one bulb fixes the problem then that bulb is bad or that socket is not grounded. Also check the continuity of the ground at the rear sockets.
Last edited by billybovine; 07-05-2016 at 08:30 AM.
2018 F3 LIMITED
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Member
Appreciate the response BillyBovine. I can remove the indicator bulb and reverse bulb, but the running/brake led group seems to be a sealed unit. There's 2 screws securing the cover, but when removed nothing. iu can appreciate my trepidation at applying too much pressure trying to remove the cover.
If there's a crossed connection in the wiring harness, couldn't that be damage of some kind along it's length. On Thursday I'll have a better idea. I'll certainly try removing the bulbs one at a time and see what happens.
Regards
I never said I was bright
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Originally Posted by billybovine
It is either a cross connection in the wiring harness between the running lights and brake light circuit or a back feed from one of the tail/brake bulbs not connected to common ground.
I would first remove each of the tail/brake bulbs, one at a time, then both and see if the problem is fixed. If removing one bulb fixes the problem then that bulb is bad or that socket is not grounded. Also check the continuity of the ground at the rear sockets.
I have to second that, and to remove the bnrake light just unplug the connector behind the light since it is sealed it will then remove it from the circuit. of course have them all unplugged and then plug one in at a time and see what appears.
???
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Very Active Member
It slipped my mind that the RT had LED brake/tail lights. Cannot remove the bulbs. But each side can be unplugged.
2018 F3 LIMITED
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