Question about Harley Davidson HarleyDavidson FLHTCU Ultra Classic Electra Glide

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I have a 2009 flhtc i started it up and revved it up it immediatley shut off and would't restart we checked the fuse box and found out the ecm fuse was blown we put in 3 more fuses and they all blew please help

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  • 5 more comments 
  • roadking_200 Nov 11, 2010

    there r 2 falt codes p1003 and u1016

  • roadking_200 Nov 11, 2010

    there r 2 falt codes p1003 and u1016

  • roadking_200 Nov 11, 2010

    i have know idea what that means

  • roadking_200 Nov 11, 2010

    i was hoping i would't have to take it to dealer ok thanks for the info

  • roadking_200 Nov 11, 2010

    ok i will check the wires thank you

  • roadking_200 Nov 13, 2010

    the wires seem to be ok it's probably the ecm

  • roadking_200 Nov 18, 2010

    thank you boy i wish i would of talk to u a few days ago i talked to the harley dealership where i bought it they r going to take care of the it no charge thanks for your help pete

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3 Answers

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  • Master
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You might have to go though a crash reset. The way to find a reason a fuse blew on any thing is to put a test light across where the fuse goes and disconect things till the ligh goes out. ( a test ligh is an ice pick looking tool with a wire coming out of the end of the handle with a clip on the end, the handle is clear and theres a light bulbinside and it's connected to the wire with the clip and the other side to the ice pick end). Connect this as the fuse and it'll light now remove electrical conectors till you disconected somthing thea makes the light go out sure the ecm is going to draw power but not enough to light the light the same as across the battery. the coil the oxogen sensers. the wire gets against the exhaust and melts and shorts to ground. the ecm has a conector unplug it and see if it stopps the short thenwith the test ligh tconnected to power and touch the end to each conectorin the plug and as the ones light the light follw them to where they go and see if it'sshortedor bad. Might take awhile to test as some of the wires will begrounds.

Posted on Nov 17, 2010

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You either have a wire that is shorted going to the ECM or the ECM is bad itself. Trace the wires between the fuse and the ECM to make sure that none of the wires are grounding out. If all of the wires all check out ok then more than likely something internally in the ECM has shorted.

Posted on Nov 11, 2010

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  • Master
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Evidently it has to be a wiring or a connection issue. The kicker is, it is under warranty so you shouldn't have to do a damn thing to it and let the dealer take care of it. I understand that it may mess up any weekend plans that you had, but....


Anyway if you feel the need, you would start buy pulling the fairing and checking the contacts at the back of the ignition switch and pulling the ignition switch off and checking it all out. If you don't find a problem there you would have to trace the wiring.Loosen your right handlebar clamp and make sure the wires are in the grove. If they are pinched you'll blow that fuse. Make sure the switch housing and the handlebar clamp are snug together. Did you have the grips changed at the dealer?

Posted on Nov 11, 2010

  • 4 more comments 
  • Tre Elkins Nov 11, 2010

    P1003 System relay Contacts Open EFI,U1016 Loss of ECM Serial Data, Vehicle Speed, Vehicle Inhibit Motion or Powertrain Security Status TSM/TSSM

  • Tre Elkins Nov 11, 2010

    that is what the codes are, you said p1003, and u1016

    p1003 system relay contacts open efi (electronic fuel injection)

    u1016 loss of ecm serial data,vehicle speed, inhibit motion or powertrain security status tcm/tssm

  • Tre Elkins Nov 11, 2010

    the codes are referring to an ecm problem, not just the fuse it needs to be put on a digitach machine at the harley service center.

  • Tre Elkins Nov 11, 2010

    Your welcome,sorry for the mix up earlier it was a misunderstanding.

  • Tre Elkins Nov 13, 2010

    it needs to go the dealer, there is a problem with the ecm.... needs to be put on a digitach machine to identify the cause of the error messages.

  • Tre Elkins Nov 13, 2010

    did you find out anything about the bike, i ride too i was just wondering if your problem was solved?

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