Question about Garmin GPS
Would not charge GPS. Opened connector that plugs into cigarette lighter and found a small white wire not connected (appears to go to traffic receiver portion). Need photo of opened connector to see where small white wire attaches.
Most likely that is the FM antenna lead that goes to the traffic receiver. It should only be connected on the end that goes to the receiver.
You say the GTM-25 is not charging. Is the fuse blown? The charger takes +12VDC from the lighter socket and supplies +5VDC to the GPS.
Posted on Mar 21, 2016
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Posted on Jan 02, 2017
Check if you are able to charge other devices via the cigarette lighter such as a cellphone or try to use the lighter if the light does not get as hot as normal then that means that there is not enough power. If that looks ok then try another cable charger for your Nuvi
Posted on Aug 20, 2008
Buy a adapter for your cigarette lighter socket that has multiple sockets with one that will fit the Garmin adapter.
I've never heard of a problem you are having??
Are you using a Garmin plug?
If not get one.
Posted on Feb 24, 2010
You can use it on its internal battery but they only last an hour or two. If you can't fix the lighter socket you could add one fairly easily then the Nuvi will last for the whole trip running on car power
Posted on Apr 05, 2010
If you have the USB cable, you can charge the unit by plugging it into the computer. It will take longer (at least several hours), but it will charge as long as the battery is ok.
Posted on May 27, 2010
SOURCE: Garmin GTM 25 Charger is
Unscew the Cig lighter plug silver or black tip part, the fuse in located in there, be careful its sping loaded....check fuse should be a 3 A fuse any Radio Shack should have it or auto store
Posted on Oct 23, 2010
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