Garmin StreetPilot c340 GPS Receiver Logo

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Posted on Nov 14, 2007
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Garmin c340 power problem

When plugged in and on acc. it was woking, started engine lost power ,went back to acc. and nothing. Previousley worked great!

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  • 3 more comments 
  • BartonJay Nov 19, 2007

    Was driving along on plugged in power, suddenly went black, won't work at all now.

  • kingsalazar Nov 23, 2007

    was working good on weds 11-21 . tried to tun on today and it wont power on evenr with acc connected

  • luis braza Nov 26, 2007

    my Garmin StreetPilot c340 GPS dont work

  • Anonymous Feb 14, 2008

    Ditto for me. I found the spring in the end of the cord that goes into the power adapter was tweaked. I have a portable power source at home that has a plug in for car cigarette lighter power sockets - the c340 works with that but NOT either of my car lighter power sockets. I cannot figured it out, but it is frustrating to be on a trip and then have it go dark.

  • Anonymous May 05, 2008

    was working for 1 hour ,turn off engine and saw a friend of mine ,turned back engine and no responce power cord giving juice to gps but gps not working

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Ron Chinnery

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  • Contributor 52 Answers
  • Posted on May 04, 2008
Ron Chinnery
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Remove the face cover (GENTLY pry it loose by the fingernail groove directly under the GARMIN logo), press the RESET button, then reattach front cover... this is covered in the owners manual, available online.

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  • Contributor 24 Answers
  • Posted on Dec 07, 2007
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First try something else in your acc supply.if that item works then most likely you have a blowen fuse or a issue requiring factory service

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