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Garmin 540 Issue / Wiring?

Old 09-26-2014, 06:05 AM
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Angry Garmin 540 Issue / Wiring?

Hi all,

Recently purchased a Tidewater 196 and have had nothing but good experiences with it so far except a few questionable issues with the GPS.

Several times I have turned on the Garmin 540 and it has noted "Battery alarm" before either turning back off or continuing to function fine. The voltage meter on the console shows the battery charge to be fine.

This week I turned it on and it gave me the same alarm and then refused to turn back on. I then flipped my Accessory switch on to turn on the radio and noticed that the radio would not turn on either. Normally the Garmin turns on without the Acc switch on. With the acc switch still on I attempted to turn on the Garmin and noticed that although it would not turn on, that whenever I tried to turn it on it caused the light on the Acc switch to dim.

Eventually I just started messing around with the switches and discovered that by turning on the Nav Lights with the Acc switch on would cause the radio to start....;?

Any ideas? I'm thinking some wires must have somehow crossed inside the console

Thanks
Old 09-26-2014, 09:12 AM
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Wiring problem, generally something you'll have to figure out for yourself or hire somebody to do.
Old 09-27-2014, 04:56 AM
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Loose and or corroded connection some where. Good crimpers, heat shrink connectors, heat gun, dielectric grease, 12 pack
Old 09-27-2014, 05:23 AM
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Sounds like a ground issue, check your ground block and make sure the positive lead going to your terminal block is tight
Old 09-27-2014, 05:30 AM
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Get some help, does not sound like you can handle this electrical issue. Most likely a very simple fix.


Jim

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