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Brake lights stay on.

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Old Jul 3, 2018 | 08:49 PM
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shurlingj's Avatar
shurlingj
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Default Brake lights stay on.

'15 Tri-Glide. Started with cruise not working. Came on but wouldn't engage. Then Security light came on and stayed on. Then check engine light came on. Stopped for a while and engine light went off.Left for the 40 mile ride home stopped for gas. Cranked up and engine light went out and stayed out. Got on dirt road to home. Drove 5 miles on bumpy road and about the time I got home the security light went off. Brake lights are still on.
 
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Old Jul 3, 2018 | 09:07 PM
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Originally Posted by shurlingj
'15 Tri-Glide. Started with cruise not working. Came on but wouldn't engage. Then Security light came on and stayed on. Then check engine light came on. Stopped for a while and engine light went off.Left for the 40 mile ride home stopped for gas. Cranked up and engine light went out and stayed out. Got on dirt road to home. Drove 5 miles on bumpy road and about the time I got home the security light went off. Brake lights are still on.
One of your brake light switches is open which is also why cruise won’t engage.
 
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Old Jul 3, 2018 | 09:11 PM
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Originally Posted by Sparky357

One of your brake light switches is open which is also why cruise won’t engage.
I would think so as well. The rear switch has a habit of going bad from exhaust heat. Try taking one wire off of it and see if the light goes out.
The front will also stick sometimes. You can usually tell that by the play in the lever.
 
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Old Jul 4, 2018 | 03:44 AM
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Check if your front brake lever returns fully after applying the brakes. If not, it will actuate the brake light switch.
If so you need to rebuild the master cylinder, easy job.

I learned a lot from this video on youtube:


Or by title:

HARLEY DAVIDSON 2001 FAT BOY FRONT MASTER CYLINDER REBUILD

 

Last edited by Japiooo; Jul 4, 2018 at 03:47 AM. Reason: Typo
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Old Jul 4, 2018 | 04:17 AM
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A further possibility, if your bike has conventional bulbs, is that the rear/brake light bulb has failed. I have had a couple where one of the filaments has blown and shorted to the other one, leaving them both glowing. So check that first!
 
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