Question about Garmin StreetPilot c340 GPS Receiver

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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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  • 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.

  • skywalker407 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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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.

Posted on May 04, 2008

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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

Posted on Dec 07, 2007


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I had the same problem recently... What I did was open the front casing and hit the reset button under the cover, then it turned on while plugged into the car adapter.

Dec 29, 2006 | Garmin StreetPilot c340 GPS Receiver

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