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Thread: Speed Sensor blowing fuse

  1. #1
    Baby Twin
    Join Date
    Apr 2009
    Location
    Suffolk Coast
    Posts
    20

    Question Speed Sensor blowing fuse

    Hi guys,

    I've had a good search around and I wondered if anyone could offer some insight.

    Washed the bike at the weekend (hose but not jet wash) and went out for first ride of the season

    Which was great until bike cut out while overtaking on way home

    Fuse D (15-amp) blown. When replaced it blows again as soon as the ignition is switched on.

    Disconnected the speed sensor and rode home but service keeps flashing up.

    Diag code reads (when SS is disconected):

    P Code 0231
    A Code 45
    Fuel Pump

    When SS is connected and fuse is blown diag reads same plus:

    P Code 0616
    A Code 50
    Starter

    I have checked the sensor at the hub for dirt

    Running a continuity test across the sensor terminals I am getting continuity with all wires. I don't suppose this is normal but I wouldn't know.

    Any tips or ideas... is it defo the speed sensor?

    Does anyone know of a less expensive replacement or of anyone offering a good deal new or secondhand?

    Can I run without the SS connected for a while (it's f'king sunny at last) or will that cause further issues?

    Thanks for looking guys,

    Dave

  2. #2
    AMA Pit Boss Keith B's Avatar
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    Oct 2010
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    The Fens.
    Posts
    2,230
    Yep,new speed sensor required,....and yep,they aint cheap.

  3. #3
    Baby Twin
    Join Date
    Mar 2015
    Location
    Ireland
    Posts
    7
    Check this out
    Inexpensive speedo sensor fix
    hopefully it helps u

  4. #4
    One Litre Duc Eater Gray's Avatar
    Join Date
    Sep 2013
    Location
    Doncaster
    Posts
    618
    Quote Originally Posted by Tuonome View Post
    Check this out
    Inexpensive speedo sensor fix
    hopefully it helps u
    Hi ApriliaDave,

    My speed sensor sensor went faulty (cut) [Gen1] I didn't get any fuses blowing with mine.
    Although a replacement can be costly, I got one on ebay (new unused old stock) for 70.
    Not cheap I know but worth it for the ease of repair.

    Good luck

    Gray

  5. #5
    AMA Pit Boss rico's Avatar
    Join Date
    Jun 2009
    Location
    North East Ricoland
    Posts
    2,735
    high pressure water and cracked sensor casing = blawn sensor. Had similar when I first got ma T, Blew the sensor right oot its mount when it shorted. As the fuse also covers the fuel pump circuit its an "all stop" so ended up trundlin tae a dead stop, totally flumox as tae whit had happened.

    You sometimes get a bit o warning the speed sensors on the way oot prior as it will read random speeds like 380 mph an fluctuate up an doon.

    Quite a common failure on the good auld Tuono actually.

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