Turn signals and horn don't work - Kawasaki KLR 650 Forum
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post #1 of 5 Old 05-25-2016, 07:07 PM Thread Starter
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Turn signals and horn don't work

Hello all. Just bought an 06 KLR and I knew it needed work but not too much. Right now the turn signals and horn not working has me stumped. Both those switched are on the same cluster on the left handle bar so I assume they are related, although the headlights low and high beam switch is there too and that works. I don't get the turn signal light by the gauges to come on when I switch them on either. All wiring appears to be in tact, but I am not getting voltage to turn signal lights themselves. Any ideas?
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post #2 of 5 Old 05-26-2016, 06:07 AM
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I'd refer you to Googling, "KLR650 Wiring Diagram," and a multimeter; good luck!
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post #3 of 5 Old 05-26-2016, 02:29 PM
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Here is a gen1 wiring diagram for you: https://www.flickr.com/photos/wandereye/2274847735

I would disconnect the 9 wire connector from the light switch to the main harness. May have to remove the tank to get to it.

To see if the signal problem is related to the signals, the blinker or the switch, I would do the following on the harness side of the connector:
Confirm that the Blue/White wire has 12 volts with the ignition on. It is just a 12 source for this test.
Jump from Blue/White to Gray to prove if the right signals come on solid without the blinker.
Make the same jump to Green to prove the left side signals.

Confirm that the Orange has 12 volts from the turn signal relay (BLINKER) with the ignition on.
Jump from Orange to Gray to cause the right signals to blink.
Make the same jump to Green to cause the left signals to blink.

The horn is wired hot on the brown wire to it from the ignition switch and the horn switch/button provides ground to power the horn. To see if the problem is related to the switch or the horn:
At the same harness connector first test for 12 volts through the horn to the Black.
Then ground the Black to see if the horn works.

When you find the problem areas, check the wires as well as the devices. The switches may just be corroded.
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post #4 of 5 Old 06-02-2016, 12:10 AM Thread Starter
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Good feedback. Damocles, I was afraid of that, but I know you are right. Just an update. The horn did start working but only when I push a certain part of the horn button, which leads me to believe it is corrosion? As I said, I am not getting 12v at the blinker wires. I haven't had a chance yet to do any more trouble shooting, I have just ridden around town a little. Gomotor, I plan on getting to the trouble shooting soon and I'll use your advice. All I can say is I love my new KLR (2006 but new to me).
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post #5 of 5 Old 06-02-2016, 09:56 PM
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The 9 pin connector is under the cover that is just ahead of the gauges. Philips screw and each side and it just pulls off. If you are not a gorilla you should be able to get your hands in there and disconnect the connector and do your trouble shooting. No need to remove the fuel tank.

The OEM switch isn't the greatest piece of craftsmanship either. I had mine fall apart but on the light switch. Horn and signals were still fine. Easy to open and maybe clean it out with contact cleaner.

My Kaw Barn - 2004 KLR, 2006 Concours (sold), 1997 Bayou 400.

"It's a friggen motorcycle, it's not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you shit your pants every now and then. "

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