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Brake light problem :(

Old 04-01-2012, 10:56 AM
Thread Starter
Join Date: Apr 2012
Posts: 57
Default Brake light problem :(

Hello all! I am new here but would like to wave a hand and introduce myself here. =) I hope at some point I can contribute as much as I can take from the forum. =) I look forward to getting involved here!

I JUST bought a 2001 f4i the day before yesterday! Woo!! It has 30,000 on the clock. It's in decent condition cosmetically. The running lights will illuminate the brake light, however neither the brake handle or foot brake will activate the brighter illumination back there. I checked the fuses and one was burned out. I replaced it and now my horn works yay! Haha. I am going to order replacement bulbs from Ron Ayers or cycle gear I guess how ever the bulbs appear to be fine. Is there anything else I can easily check? I have no clue what else this could be and this is my only mode of transportation and I dread getting pulled over and I am even more scared of cagers behind me until I get this fixed..... Hope they see the hand signals in the mean time....>.< Thank you sooo much for all of your time guys.

Best regards
Old 04-01-2012, 12:25 PM
Junior Member
Join Date: Mar 2012
Posts: 11

I have an aftermarket fender eliminator. The fuse for the brakelights/turn signal/ horn blows quickly. What could be the problem? Even a higher amp fuse blows. What could be drawing that much amperage?
Old 04-01-2012, 03:03 PM
Senior Member
Join Date: Jan 2012
Location: Stockton, CA
Posts: 258

are you sure the brakes are not stuck on running? maybe the brakes light are always on that is why when you press them they do not seem to get any brighter.
Old 04-01-2012, 03:11 PM
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Administrator and MVN, March 2012/Oct 2013 ROTM
Join Date: Sep 2011
Location: socal 949/951
Posts: 7,979

Hotwheels, check for voltage at the sockets when the brake is applied. you have 3 wires...brake, running, ground. If you find power on the brake circuit, replace the bulbs. you can get them at any auto parts store.

Biggreys, you have power shorting to ground somewhere. If you start your own electrical tracing thread, you will get many responses.
Old 04-01-2012, 03:44 PM
MadHattr059's Avatar
Retired Super Moderator - At large E=MC2
Join Date: Feb 2011
Location: Tulsa,OK
Posts: 2,299

Hotwheels, Demon's got your back.

Biggreys, first don't ever replace with a larger fuse, you will just increase the
possibility of real damage and/or fire to the harness/components

To figure out the issue, replace the fuse, then one at a time, use each individual
control. Check the fuse each time you do so and see which is responsible for the
fuse blowing. Then start inspecting the harness for a pinched/frayed/melted wire
on that section. That should help you narrow down where to look for your problem.

Good luck, both of you, Ern
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