Horn and Brake Light not working

Daks · September 2nd, 2014, 02:09 PM

Neither my horn or brake lights work after bleeding my brakes and I have no idea why. The fuses look fine.

Any ideas? Blinkers work, headlight work, bike starts, all that. But no horn sounds and no tail light for front or back brakes.

Also the fan hasn't been coming on. In all honesty I have no idea how long the brake lights haven't worked, it all could've gone at the same time and I never noticed until I actually checked after bleeding.

Alex · September 2nd, 2014, 02:56 PM

The problems might be related, but they might not. If neither front or rear brake switch is activating the light, I'd start looking at the light itself rather than the sensors. Are you sure the bulb is good?

coolbreeze · September 3rd, 2014, 08:23 AM

If the fuses are fine, it's time to start checking your wiring. I would start with checking power to horn and brake light. I don't have the wiring diagram in front of me, but that is your next step.

Daks · September 3rd, 2014, 01:54 PM

Quote:

Originally Posted by Alex

The problems might be related, but they might not. If neither front or rear brake switch is activating the light, I'd start looking at the light itself rather than the sensors. Are you sure the bulb is good?

I'll pull it out and check but they're all on the same group of wires. Over at barf they suggested looking into a bad grounding

so yeah, looking at everything. If I can get the horn to work but the tail light to not, then it's more likely the bulb as well.

jkv45 · September 3rd, 2014, 02:17 PM

Easiest way is to use a test light to check for power at the positive wire (on the horn or at the light socket) when you activate the button/switch.

That gives you a good place to start.

cuong-nutz · September 3rd, 2014, 02:43 PM

I'd check your ignition plug and rectifier plug too.

Daks · September 4th, 2014, 01:31 PM

It would seem my brake light was just a loose wire. :|

Derped there. My tester light seems to only work when it wants unless there is only power to all the wires sometimes.

coolbreeze · September 5th, 2014, 09:35 AM

Quote:

Originally Posted by Daks

It would seem my brake light was just a loose wire. :|

Derped there. My tester light seems to only work when it wants unless there is only power to all the wires sometimes.

Congrats on the first issue. Someone will verify this, but some components won't work (maybe receive power) until the bike has been started.

Daks · September 5th, 2014, 09:46 PM

Quote:

Originally Posted by coolbreeze

Congrats on the first issue. Someone will verify this, but some components won't work (maybe receive power) until the bike has been started.

Nothing worked started or not before. Now the brake light works. Still no fan or horn.

with the light being the main safety issue in mind, I'm tabling the electric issue for now in favor of the fact that I just had to drop $100 on a new battery.

$100 could have gone towards a very, very needed valve adjustment.

snot · September 6th, 2014, 05:10 AM

Did you check the grounds or switches for the horn or fan?

csmith12 · September 6th, 2014, 10:54 AM

coolbreeze · September 6th, 2014, 04:39 PM

Quote:

Originally Posted by snot

Did you check the grounds or switches for the horn or fan?

Doesn't the fan only come on after hits certain temp?

coolbreeze · September 6th, 2014, 04:41 PM

Quote:

Originally Posted by Daks

Nothing worked started or not before. Now the brake light works. Still no fan or horn.

with the light being the main safety issue in mind, I'm tabling the electric issue for now in favor of the fact that I just had to drop $100 on a new battery.

$100 could have gone towards a very, very needed valve adjustment.

Sorry to hear about your battery, BTDT in January when my bike was my main transportation. If it turns out that your horn isn't any good, I may still have mine from when I switched them.

snot · September 6th, 2014, 04:44 PM

Quote:

Originally Posted by coolbreeze

Doesn't the fan only come on after hits certain temp?

Yes, it is a sensor for the temp and switch for the fan. The fan also could have a bad wire.

snot · September 6th, 2014, 04:51 PM

http://faq.ninja250.org/images/a/a4/...matic_-_R4.pdf

Download schematic here.

Daks · September 6th, 2014, 08:37 PM

i've got the wiring diagram but electrical systems may as well be magic to me. I need to read up on it or have someone show me eventually.

I appreciate the help, though!

snot · September 7th, 2014, 07:38 AM

To follow it, start with the beginning or end pick a wire and follow it on the bike. It is intimidating at first but once you are looking at the bike and working one at a time its not so bad. Hopefully someone close to you can help. You could also use a tester to test continuity of the wires.

September 2nd, 2014, 02:09 PM	#1
Daks Jersey Devil Name: Daks Location: Austin, TX Join Date: Oct 2012 Motorcycle(s): '06 Ninja 250 Posts: 469	Horn and Brake Light not working Neither my horn or brake lights work after bleeding my brakes and I have no idea why. The fuses look fine. Any ideas? Blinkers work, headlight work, bike starts, all that. But no horn sounds and no tail light for front or back brakes. Also the fan hasn't been coming on. In all honesty I have no idea how long the brake lights haven't worked, it all could've gone at the same time and I never noticed until I actually checked after bleeding. __________________________________________________ ~Riding like a grandma because I wanna ride as a grandma~

September 2nd, 2014, 02:56 PM	#2
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	The problems might be related, but they might not. If neither front or rear brake switch is activating the light, I'd start looking at the light itself rather than the sensors. Are you sure the bulb is good? __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

September 3rd, 2014, 02:43 PM	#6
cuong-nutz RIP Alex Name: Cuong Location: Houston, TX Join Date: Apr 2011 Motorcycle(s): '10 250r, '09 265r Posts: A lot. Blog Entries: 2	I'd check your ignition plug and rectifier plug too. __________________________________________________ HalfFast Racing Team Serving Greater Houston Area Riders:WFO Riders MotoHouston HPC CMRA Ride Smart Fastline Lone Star Track Days

September 4th, 2014, 01:31 PM	#7
Daks Jersey Devil Name: Daks Location: Austin, TX Join Date: Oct 2012 Motorcycle(s): '06 Ninja 250 Posts: 469	It would seem my brake light was just a loose wire. :\| Derped there. My tester light seems to only work when it wants unless there is only power to all the wires sometimes. __________________________________________________ ~Riding like a grandma because I wanna ride as a grandma~

September 6th, 2014, 10:54 AM	#11
csmith12 The Corner Whisperer Name: Chris (aka Reactor) Location: Northern KY Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much. MOTY 2015, MOTM - Nov '12, Nov '13	__________________________________________________ Goal: Shake A Million Hands \| Look through the corners \| Track Day Prep \| Closest track? \| The Mid-Ohio School

September 3rd, 2014, 08:23 AM	#3
coolbreeze ninjette.org sage Name: darius Location: GA Join Date: Apr 2009 Motorcycle(s): 2000 250 sold; 2005 636 sold. BIKELESS IN ATLANTA Posts: 753	If the fuses are fine, it's time to start checking your wiring. I would start with checking power to horn and brake light. I don't have the wiring diagram in front of me, but that is your next step.

September 3rd, 2014, 02:17 PM	#5
jkv45 Rev Limiter Name: Jay Location: WI Join Date: Jul 2013 Motorcycle(s): '06 SV650n, '00 Derbi GPR, '64 CA77 Dream 305, '70 CL450 Scrambler, numerous dirt bikes Posts: A lot. MOTM - Jun '18, Oct '16	Easiest way is to use a test light to check for power at the positive wire (on the horn or at the light socket) when you activate the button/switch. That gives you a good place to start.

September 6th, 2014, 05:10 AM	#10
snot sammich maker Name: snot Location: West Ohio - in the kitchen Join Date: Feb 2012 Motorcycle(s): 2013 white 300, 09 KLX 250 SF, 09 thunder blue 250(traded) Posts: A lot. MOTM - Apr '15	Did you check the grounds or switches for the horn or fan?

September 6th, 2014, 04:51 PM	#15
snot sammich maker Name: snot Location: West Ohio - in the kitchen Join Date: Feb 2012 Motorcycle(s): 2013 white 300, 09 KLX 250 SF, 09 thunder blue 250(traded) Posts: A lot. MOTM - Apr '15	http://faq.ninja250.org/images/a/a4/...matic_-_R4.pdf Download schematic here.

September 6th, 2014, 08:37 PM	#16
Daks Jersey Devil Name: Daks Location: Austin, TX Join Date: Oct 2012 Motorcycle(s): '06 Ninja 250 Posts: 469	i've got the wiring diagram but electrical systems may as well be magic to me. I need to read up on it or have someone show me eventually. I appreciate the help, though! __________________________________________________ ~Riding like a grandma because I wanna ride as a grandma~

September 7th, 2014, 07:38 AM	#17
snot sammich maker Name: snot Location: West Ohio - in the kitchen Join Date: Feb 2012 Motorcycle(s): 2013 white 300, 09 KLX 250 SF, 09 thunder blue 250(traded) Posts: A lot. MOTM - Apr '15	To follow it, start with the beginning or end pick a wire and follow it on the bike. It is intimidating at first but once you are looking at the bike and working one at a time its not so bad. Hopefully someone close to you can help. You could also use a tester to test continuity of the wires.

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