Results 1 to 29 of 29
  1. #1
    Junior Member S.U.A.R's Avatar
    Join Date
    Oct 2007
    Location
    Southeast
    Country
    My Ride
    1998 VFR 800i
    Posts
    10
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Turn signal fuse keeps blowing.

    New to me, very clean '98 interceptor. All of a sudden the turn signals quit working. Checked the fuse and it is blown. Replaced with new 10 amp fuse, turned ignition, and it immediately blew again. Replaced with 20 amp fuse, same problem. Front running lights continue to work, even after fuse is blown, but they go out when I activate turn signal. Help? I am not a great mechanic and have run out of ideas. Any ideas greatly appreciated.

    If you have any poo. . . .fling it now!

  2. #2
    Senior Member
    Join Date
    Jun 2007
    Location
    Elkridge, MD
    Country
    My Ride
    1993 Honda VFR750F (Pearl Crystal White)
    Posts
    189
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Sounds like you have a short somewhere.

    Had the same problem a few months back.
    Turns out one of the rear turnsignal wires was semi-out of the wire connector.

    If the electrical current running through the turnsignal wires can not ground/ or + juice doesn't have anywhere to go (shorted wire or disconected wire) your fuse will blow.
    Thats part of the reason fuses are in place....if theres a problem it stops the ability for juice to run through it...and prevents what could be a major problem if it were allowed to continue.

    So you know this so far. its in the blinkers probably or the headlight wires possibly, since you said headlight goes out after fuse blows.

    1. clean all contacts to headlight and blinkers.
    2. trace the wires from fusebox to blikers and headlight.
    Look for disconnected relays, or electrical connectors, wires that
    appear burnt or damaged in any way.

    Mine was on a 3rd gen '93 vfr, but I would guess your problem is the same.
    Probably a short to neg. (-) wire somewhere in the blinker wires.

    Hope this helps
    -Steve
    RIDE it like you STOLE it....

  3. #3
    Uber Guru Bubba Zanetti's Avatar
    Join Date
    Jan 2007
    Location
    Delaware
    Country
    My Ride
    1997 VFR750F (SOLD)
    Posts
    3,344
    Thanks
    439
    Thanked 358 Times in 229 Posts
    Blog Entries
    1
    I 2nd Pearl's idea!

    Keep us posted!

    BZ
    "The average man does not get pleasure out of an idea because he thinks it is true; he thinks it is true because he gets pleasure out of it".

    -H.L. Mencken

  4. #4
    Senior Member Longerfellow's Avatar
    Join Date
    Aug 2007
    Location
    Pollock Pines, CA
    Country
    My Ride
    1997 Honda VFR750F & lots of little Honda stuff
    Posts
    400
    Thanks
    18
    Thanked 21 Times in 19 Posts
    Quote Originally Posted by Bubba Zanetti View Post
    I 2nd Pearl's idea!

    Keep us posted!

    BZ
    If it happens right when turns on the ignition wouldn't it be an issue with the running lights up front since the rears don't power up until you signal?

  5. #5
    Uber Guru squirrelman's Avatar
    Join Date
    Jul 2006
    Location
    Barf-a-load, ny
    Country
    My Ride
    '86 VFR 700Fs (3)/ '97 VFR 750F/ '89 &'90 NT 650 HAWK/ '86 Yamaha Radian/ '66 Yamaha YL-1/ '88 VTR 250 / '90 VTR 250/ '73 CB 125
    Posts
    5,556
    Thanks
    215
    Thanked 419 Times in 374 Posts
    start by unplugging one light at a time to localize problem
    Attached Images Attached Images



    " Goin' to Hell in a bucket, but at least I'm enjoyin' the ride. "


    FRACKING: kiss your aquifer good-bye !!

  6. #6
    Junior Member S.U.A.R's Avatar
    Join Date
    Oct 2007
    Location
    Southeast
    Country
    My Ride
    1998 VFR 800i
    Posts
    10
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Thanks for the great tips so far. I'll start chasing wires in the next few days and post my results. Keep the ideas coming.
    If you have any poo. . . .fling it now!

  7. #7
    Uber Guru eddievalleytrailer's Avatar
    Join Date
    May 2007
    Location
    Jonesborough, TN
    Country
    My Ride
    82 V-45 Sabre 83 VF750F Interceptor 91 XR250L 03 Shadow ACE 07 RWB Interceptor 07 V Strom 650
    Posts
    1,277
    Thanks
    65
    Thanked 52 Times in 33 Posts
    Never replace a fuse with a higher amp fuse than is recomended by Honda!! The circuit is only designed to handle the specified current.
    Which side makes the fuse blow? Left or Right? If either, I'd check the switch first. If one or the other, that'll narrow your search. The wire for that side (front or rear) may have been pinched, and grounding on the frame.
    IBA #48298

  8. #8
    Member green1's Avatar
    Join Date
    Dec 2006
    Country
    My Ride
    1990 VFR750
    Posts
    92
    Thanks
    0
    Thanked 6 Times in 3 Posts
    Open circuits don't blow fuses,electricity with no where to go goes nowhere,short circuits blow fuses.When looking for your short you can replace the fuse with a light bulb if you have an old socket and bulb kicking around,modify the 2 wires of the socket to plug into the fuse contacts and it repaces the fuse.Now as you search for the short the light will be on as its the load in the circuit,when you find or unplug the short,or the section of harness with the short in it the light will go out as you took away the path to ground.I use an old headlight bulb for this purpose,hope it makes sense and its a little easier on the spare fuses
    Never argue with an idiot, people watching can't tell the difference.

  9. #9
    Senior Member masonv45's Avatar
    Join Date
    Apr 2007
    Country
    My Ride
    1985 VF700F
    Posts
    792
    Thanks
    0
    Thanked 36 Times in 33 Posts
    Quote Originally Posted by squirrelman View Post
    start by unplugging one light at a time to localize problem
    Doing it this way you go through a lot of fuses.

    Start by disconnecting all the lights.

    Turn the power on - check fuse.

    Connect one light - check fuse.

    Repeat previous step until fuse blows or all 4 lights are working.

    If all 4 lights are working, then insulation has rubbed off a wire somewhere and is hitting ground. Find it or risk the fuse blowing again down the road.
    1985 VF700F (Parting)
    1983 V45 Magna Gone but not Forgotten
    Memphis, TN
    SabMag FAQ: http://wiki.sabmagfaq.org/

  10. #10
    Junior Member S.U.A.R's Avatar
    Join Date
    Oct 2007
    Location
    Southeast
    Country
    My Ride
    1998 VFR 800i
    Posts
    10
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Problem solved

    Thanks for the great tips. Had the bike in the shop for oil change and the dealer fixed it. Turn signal switch housing was loose and had rotated downward, causing the turn signal wire to pinch, resulting in the short and blown fuse. Thanks again for the help. VFR world is a great resource.
    If you have any poo. . . .fling it now!

  11. #11
    Senior Member pontiacformula99's Avatar
    Join Date
    Mar 2007
    Location
    Smyrna, TN
    Country
    My Ride
    '87 VFR 700F2
    Posts
    203
    Thanks
    0
    Thanked 1 Time in 1 Post
    Hey that light bulb in the fuse socket trick is pretty smart. 10yrs in car audio chasing wires and blown fuses and I've never heard that before. That would've saved me a ton of money in fuses over the years. Great Tip!

    There was someone else on here that had the same problem about a year ago... He said if it kept doing it to wrap electrical tape around the bar so that the wire can't ground out to the bars.

  12. #12
    Poser

    reg71's Avatar
    Join Date
    Feb 2006
    Location
    Atascadero, California, United States
    Country
    My Ride
    1998 VFR 800; 2003 YZ 450 F
    Posts
    8,576
    Thanks
    100
    Thanked 366 Times in 271 Posts
    Blog Entries
    53
    Quote Originally Posted by green1 View Post
    Open circuits don't blow fuses,electricity with no where to go goes nowhere,short circuits blow fuses.When looking for your short you can replace the fuse with a light bulb if you have an old socket and bulb kicking around,modify the 2 wires of the socket to plug into the fuse contacts and it repaces the fuse.Now as you search for the short the light will be on as its the load in the circuit,when you find or unplug the short,or the section of harness with the short in it the light will go out as you took away the path to ground.I use an old headlight bulb for this purpose,hope it makes sense and its a little easier on the spare fuses

    that's a great piece of advice. I'm gonna have to modify a flashlight bulb for that purpose even though I don't need it right now. You never know when that'll come in handy.

  13. #13
    Uber Guru eddievalleytrailer's Avatar
    Join Date
    May 2007
    Location
    Jonesborough, TN
    Country
    My Ride
    82 V-45 Sabre 83 VF750F Interceptor 91 XR250L 03 Shadow ACE 07 RWB Interceptor 07 V Strom 650
    Posts
    1,277
    Thanks
    65
    Thanked 52 Times in 33 Posts
    Quote Originally Posted by reg71 View Post
    that's a great piece of advice. I'm gonna have to modify a flashlight bulb for that purpose even though I don't need it right now. You never know when that'll come in handy.
    I just use a 12v test light.
    IBA #48298

  14. #14
    Junior Member marty_uiuc's Avatar
    Join Date
    May 2008
    Location
    central illinois
    Country
    My Ride
    1998 honda interceptor 1989 honda hawk gt
    Posts
    21
    Thanks
    0
    Thanked 1 Time in 1 Post
    sorry to bring this back from the dead, but i am having a similar problem with my '98 vfr. i've put a dvom on the signal and brake light plugs of the bike, here are the results:

    L turn signal - shorted (F/R)
    R turn signal - shorted (F/R)
    rear brake light - shorted
    rear running light - NOT shorted
    front running light - NOT shorted (L/R)

    i have taken apart the turn signal switch, and everything looks okay in there - no pinched wires or insulation burned/rubbed off.

    i am wondering if maybe the turn signal relay has died, however that seems like it shouldn't stop the brake light from working. since i do not have the factory service manual, might one of you friendly people tell me where it is located?
    Last edited by marty_uiuc; 05-14-2008 at 05:13 AM.
    1998 vfr | 1989 hawk gt | 1999 miata

  15. #15
    Randy's BFF

    Joey_Dude's Avatar
    Join Date
    Oct 2007
    Location
    North Georgia
    Country
    My Ride
    '99 VFR800
    Posts
    1,772
    Thanks
    176
    Thanked 212 Times in 146 Posts
    Quote Originally Posted by marty_uiuc View Post
    i am wondering if maybe the turn signal relay has died, however that seems like it shouldn't stop the brake light from working. since i do not have the factory service manual, might one of you friendly people tell me where it is located?
    You can get the electronic version of the service manual at Downloads You'll have to register with them before you can download it. It's a freebie so no big deal.

  16. #16
    Junior Member marty_uiuc's Avatar
    Join Date
    May 2008
    Location
    central illinois
    Country
    My Ride
    1998 honda interceptor 1989 honda hawk gt
    Posts
    21
    Thanks
    0
    Thanked 1 Time in 1 Post
    thanks for the link! hopefully i can figure out what is wrong tonite...
    1998 vfr | 1989 hawk gt | 1999 miata

  17. #17
    Junior Member marty_uiuc's Avatar
    Join Date
    May 2008
    Location
    central illinois
    Country
    My Ride
    1998 honda interceptor 1989 honda hawk gt
    Posts
    21
    Thanks
    0
    Thanked 1 Time in 1 Post
    well, after ripping all the plastics off the bike and going through all the connector behind the dash, i just happened to glance at the brake light switch on the clip-on. it was fouling on the handle!

    at least the fix was pretty easy ;)
    1998 vfr | 1989 hawk gt | 1999 miata

  18. #18
    Uber Guru Lgn001's Avatar
    Join Date
    Nov 2007
    Location
    Russian River by Ocean, CA
    Country
    My Ride
    1983 CB1100F 2000 SV650 2007 VFR
    Posts
    1,856
    Thanks
    77
    Thanked 152 Times in 120 Posts
    Hi guys. Thanks for the follow-ups! It is always good to find out what the resolution was. There have been some strange problems posted that just go away, and it always leaves me curious as to what it was.

  19. #19
    Senior Member
    Join Date
    Apr 2008
    Location
    MN
    Country
    My Ride
    07 VFR800 93 ST1100
    Posts
    527
    Thanks
    7
    Thanked 62 Times in 57 Posts
    Alternative method for troubleshooting "dead" shorts...replace the fuse with a rolled up chewing gum wrapper and watch for the smoke...haha, just kidding. Great advice and knowledge from Green1...apparently been around some circuits before.

  20. #20
    Senior Member VsVFR's Avatar
    Join Date
    Aug 2006
    Location
    Western KY
    Country
    My Ride
    2006 VFR Pearl White
    Posts
    227
    Thanks
    12
    Thanked 10 Times in 6 Posts
    All right, kind of along the same topic, my turn signals quit working last night on the ride home from work. I remembered seeing this topic and some others on the forum, so I read up a little before tearing into the bike. First thing I did was check the fuse. No problem found, fuse was still good.

    So, puzzled I looked around a few more minutes before cranking the bike and hitting the turn signal switch, which worked this time. So my question is if I had a short would it necessarily cause a fuse to blow, or could it end up being intermittent with no blown fuse?

    Vs

  21. #21
    Senior Member
    Join Date
    Apr 2008
    Location
    MN
    Country
    My Ride
    07 VFR800 93 ST1100
    Posts
    527
    Thanks
    7
    Thanked 62 Times in 57 Posts
    Well...there's two kind of wiring problems...opens and shorts. When a connection is not being made, it's an open circuit...no fuse is blown. That's the most common failure by far.

    Then there's the short circuit...when a connection is made that's not supposed to be there. Let's say a positive headlight wire wears through the insulation and touches a frame ground...instead of lighting your headlight, there's a direct path to ground which causes a huge surge in current and should blow your headlight fuse, sometimes referred to as a "dead short". Suppose two wires in a bundle wear through insulation and touch each other...let's say positive leads to high beam and the right turnsignal. May not be enough excess current to blow a fuse, but when you flicked your high beam...your right turnsignal would light as well. Still a short circuit though.

    Either short or open could be intermittent...and usually are. Sounds like you got an open ciruit.

    Whew...hope that makes sense

  22. #22
    Uber Guru eddievalleytrailer's Avatar
    Join Date
    May 2007
    Location
    Jonesborough, TN
    Country
    My Ride
    82 V-45 Sabre 83 VF750F Interceptor 91 XR250L 03 Shadow ACE 07 RWB Interceptor 07 V Strom 650
    Posts
    1,277
    Thanks
    65
    Thanked 52 Times in 33 Posts
    I usually replace the blowing fuse with a .22 bullet. You can tell by the "BANG" if you have a short.
    IBA #48298

  23. #23
    Senior Member VsVFR's Avatar
    Join Date
    Aug 2006
    Location
    Western KY
    Country
    My Ride
    2006 VFR Pearl White
    Posts
    227
    Thanks
    12
    Thanked 10 Times in 6 Posts
    Diz, thanks, that does make a lot of sense. And now I wonder if that's why I'm not seeing the problem at all today. I haven't turned the brights on today. I've had the bike on and everything has been fine, but last night I had the brights on quite a bit. So there's a good chance your example may be pretty close to dead on. Thanks for the input.

    Eddie, that's hilarious! I usually replace the blowing fuse with an anchovy, that way when it goes I have to smell fried fish.

  24. #24
    Senior Member
    Join Date
    Apr 2008
    Location
    MN
    Country
    My Ride
    07 VFR800 93 ST1100
    Posts
    527
    Thanks
    7
    Thanked 62 Times in 57 Posts
    I didn't mean to infer that's the problem with your turnsignals...in fact it's highly unlikely...I was just using it as an example.

    I like the bullet idea...but for the safety of my coworkers, think I'll stick to the firecrackers.

  25. #25
    Senior Member VsVFR's Avatar
    Join Date
    Aug 2006
    Location
    Western KY
    Country
    My Ride
    2006 VFR Pearl White
    Posts
    227
    Thanks
    12
    Thanked 10 Times in 6 Posts
    Dizzy, I realize that, but it does make a lot of sense. And luckily it didn't work out that way. No problems on last nights ride.

  26. #26
    Junior Member
    Join Date
    May 2008
    Location
    Bay Area, CA
    Country
    My Ride
    1998 Honda VFR
    Posts
    3
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Hi all. Just wanted to input my experience with this issue as well. I have a '98 and I had the same issue with the turn signals as S.U.A.R. Doing a quick Google search lead me straight to this thread. Prior to looking it up I replaced the fuse for the turn signal and it seemed to be working fine. My mistake was that I didn't start the bike, only turned the ignition to "on" and checked the turn signals. Anyways, after starting the bike and riding away I noticed that the turn signals weren't working again.

    I read around and it seemed that the problem is located in the switch housing. I took it off and cleaned up the grease. I noticed that there was grease on the handle bar as well so that's probably where the short was coming from. Anyways, wiped off the extra grease from the top of the switch and around it, put it back together and tested. Voila, problem solved. I probably should have put a little electrical tape around the bar where the grease was just for a preventative measure but oh well. Maybe next time it goes out!

    This is a great site with tons of good information. Keep up the good work!

  27. #27
    Junior Member
    Join Date
    May 2008
    Location
    Bay Area, CA
    Country
    My Ride
    1998 Honda VFR
    Posts
    3
    Thanks
    0
    Thanked 0 Times in 0 Posts
    I thought I had solved the problem but it's not that easy! I finally figured out what's causing the fuse to blow. It happens when I hit the brakes. I tried both the front and rear brake independently and they both cause the fuse to blow. I also tried disconnecting the brake light bulbs and it still blew. So, time to check the diagram and go through all the wires. It seems I have two options:

    1) find the short
    2) don't use the brakes

    I'll post again when I find more information.

  28. #28
    Uber Guru eddievalleytrailer's Avatar
    Join Date
    May 2007
    Location
    Jonesborough, TN
    Country
    My Ride
    82 V-45 Sabre 83 VF750F Interceptor 91 XR250L 03 Shadow ACE 07 RWB Interceptor 07 V Strom 650
    Posts
    1,277
    Thanks
    65
    Thanked 52 Times in 33 Posts
    It would be easier to just not use the brakes:sportbikesmile:
    IBA #48298

  29. #29
    Junior Member
    Join Date
    May 2008
    Location
    Bay Area, CA
    Country
    My Ride
    1998 Honda VFR
    Posts
    3
    Thanks
    0
    Thanked 0 Times in 0 Posts
    I found out what was causing the short. I had recently rotated my front brake lever down to get a more comfortable position. Of course more is better so I rotated it until it couldn't go anymore. By doing this the wire coming out of the front brake light switch was getting bent by the clip on. Eventually the rubber insulator got pushed away and the metal connector grounded out on the clip on. I rotated the brake lever up a little and also put some electrical tape on the clip on just for added insurance. Problem solved. Now I just need to put all the fairings back on. Doh!


Similar Threads

  1. Turn Signal Opinions
    By AnUnknown1 in forum General VFR Discussions
    Replies: 12
    Last Post: 12-30-2009, 04:51 PM
  2. 4th gen 97 750 FV fuse blowing
    By bigblackfalco in forum 3rd & 4th Generation 1990-1997
    Replies: 3
    Last Post: 11-13-2009, 07:25 AM
  3. IGN - PUMP fuse keeps blowing??
    By PaWeSoMe in forum Mechanics Garage
    Replies: 6
    Last Post: 09-29-2009, 02:51 PM
  4. Turn signal fuse
    By carolf in forum Mechanics Garage
    Replies: 2
    Last Post: 08-15-2009, 01:33 AM
  5. Keeps blowing fuse box fuse...
    By hondajt in forum 5th Generation 1998-2001
    Replies: 12
    Last Post: 06-06-2009, 11:56 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •