2011 - keep blowing the fuse for turn signals + horn, WTF? - Honda CBR1000 Forum : 1000RR.net
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post #1 of 22 Old 11-27-2012, 09:53 AM Thread Starter
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2011 - keep blowing the fuse for turn signals + horn, WTF?

Just blew another fuse this morning, 15A. I blew one before I put my HIDs on, first week I got it.

then another 10A. so I replaced it with a 15A and that lasted a while, but this morning, it blew again, no signals for my commute.

thoughts?

I do have 35W HIDs, and grip warmers. other than that it's pretty standard. I did have the grip warmers installed at the dealership as part of the purchase

thx for any help.
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post #2 of 22 Old 11-27-2012, 11:35 AM
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I had this problem after putting on stainless steel brake lines. One of the electrical wires running off the throttle was slightly pulled away from plug from increased stress due to an odd angle. I had to reposition front brake. It would blow the fuse whenever I used the brake for the first time after I installed new fuse. Again the problem was on throttle/front brake clip-on. Look at those small electrical clips. One could be exposed. It worked for me.

Odd thing was it didn't look like it was unhooked etc. Just pulled a bit. Once i relieved the stress on it, the short was gone. I'm at work or i would post a pic

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post #3 of 22 Old 11-27-2012, 11:44 AM
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Don't use your turn signals lol


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post #4 of 22 Old 11-27-2012, 12:10 PM
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The aftermarket stuff along with wiring done by others is usually suspect and where i would start looking. OEM stuff is usually pretty solid. Wonder where they picked up the power for the grips...

Mine was from aftermarket turn signals. the caulk used for strain relief had let go and allowed the wires to pull out just a bit and touch the positive turn signal to the negative.

Do not replace a fuse with a different value. Find the short. Try the left turn signal (did it blow?) try the right turn signal (did it blow?) try the horn, etc. when you find which circuit blew the fuse pop the fairings off and start looking around at all the connections.

blowing turn signal and brake light fuse

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post #5 of 22 Old 11-27-2012, 12:52 PM Thread Starter
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the other thing that's wierd, it doesn't blow right away, and I do use my heated grips often.

before I bumped up the amps on the fuse, I talked to someone who does electrical stuff on bikes for 15+ yrs (and he now works at the dealership), and he said 10A to a 15A ain't much of a bump.

It's intermittent, so odd.
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post #6 of 22 Old 11-27-2012, 01:32 PM
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Never swap in a bigger fuse.

Doublecheck the length of wiring associated with that circuit(s) and look for a piece of frayed/damaged wiring that is shorting/grounding out the fuse...

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post #7 of 22 Old 11-27-2012, 02:03 PM Thread Starter
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I do have an aftermarket tail light kit. I have the same brand as is on my zx6r, and no issues with that bike. also the tail light kit was installed at the dealership before I got my new bike. so now I'm thinking it's something in the tail lights....

I called to ask where they tapped the power source for the aftermarket heated grips, they didn't remember. I'll let you know, what I find.
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post #8 of 22 Old 11-27-2012, 06:21 PM Thread Starter
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So it was just a 10A fuse. I put a new one in, and tried every max combo of an electrical load I could think of and it didn't blow. I taped up anything suspicious (not the rear lights)... and we'll see. cross yer fingers!
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post #9 of 22 Old 11-27-2012, 07:45 PM
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Is the fuse loose in the holder? Seen that blow a fuse as it arcs and creates heat. Are all connections tight and clean? Could the turn signal switch be intermittently shorting to ground like an old kill switch

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post #10 of 22 Old 11-28-2012, 12:11 AM Thread Starter
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all the fuses are snug. I had a similar issue with a loose fuse (my bad) on one of my cars, so I'm aware of that possibility.
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