Question about Garmin GPSMAP 168 Sounder GPS Receiver

2 Answers

Unit does not locate satalites. otherwise it is like new and works fine on the sounder and simulation

Posted by on

  • jvkeahey Jul 14, 2010

    Can you give me names of repairers in my area for this problem?



2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 677 Answers

I've recently had the same issues as others here My unit is about 2 yrs old. And just went AWOL searching for satellites.
I resolved this by accident by doing the following:
On short notice, I could not purchase a external antenna from a brick and mortar store, so I thought I'd use some wire.
1) Hook GPS to Garmin website and down loaded latest 4.7 ver. I was using 4.1 2) Perform the hard reset (push down on upper left of screen, hold, power and wait until it asks if you want to go in maintenance mode. There are posts here or google This website will describe exactly what to do to clear out the old satellite date by performing the hard reset . Once the unit thinks it's back in Kansas City then I did the following; 3) Take a piece of 14 gauge wire, multi strand, use just one individual strand, cut all the others off, so the wire doesn't touch the outer part of the antenna input connector and short. This piece of wire will act as the external antenna. 4) Insert that single strand into the center of the GPS antenna input. ( I only used a 6" piece of wire and btw, the wire has the protective casing on it. I didn't use a bare wire) 5) touch the signal strength bar on the GPS to get you into the satellites screen. 6) For me, the bars immeadiately started coming up and then filled. 7) I took the small wire out and my unit continued to work with the flip up antenna. I suspect that once the unit reset = re-flashed the new satellite info. into the GPS. Things went back to normal.
8) Turned unit off and on a couple of times to verify. My unit continued to worked normally with the flip antenna.
9) Tested over the last several days. No indication of dropped satellites or lost coverage so far.
No Promises here. This just worked for me. I hope it works for you. There are a lot of unhappy owners out there.

Posted on Jul 14, 2010

  • jvkeahey Jul 14, 2010

    Thank You, but I have questions.

    I have an external antenna, does that change all this wiring?

    How do I connect to a computor to go to web site

  • ikechukwu joshua
    ikechukwu joshua Jul 14, 2010

    Hi,will not any how repairer for you.

    Go to the website of the product manufacturer of the product you are using, Contact the service care, they will assist you better to guide you on the right steps to take..Not too sure of road side repair on this.

    I think call is free.

    Hope am making sense.?

    Take care.


  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 2,272 Answers

Turn the unit off then turn on after few minutes.Then recheck.If still the same problem,then check out if there are too many tall buildings or too much covered area to the place where the unit is.If it is that this happens sometimes.But if there is nothing like that but still problem in searching satellites then its the electrical problem of the circuit board in the unit.Its not catching signal.Get it checked by the Garmin,because only Garmin deals with low or no satellite problems in your gps,.It requires chip reset and replacement if required. Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.

Posted on Jul 13, 2010

  • jvkeahey Jul 13, 2010

    turning on and off will not help, it never works. No buildings involved, it's a marine unit. Garmin will not work on it because it is 10 years old.

    Is there any one that will work on it?

  • raj somaiya
    raj somaiya Jul 15, 2010

    You will have to get help from the local dealers dealing in garmin product.As the product is 10 years old.Then most probably its the problem of internal microprocessor board.But it requires proper professional to deal with this case.He should be aware of the power and supply required by the board.The garmin products supplier in your area might help in this case.
    You will have to do some proper inquiry.
    Thanks for keeping updated with your query.



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Garmin 100 echo stays in simulate mode. Is there a setting to change it to live mode?

1 turn off the simulator in the menu.

if that does not work

2. Check the connection to the transducer, if it is unhooked or corroded, clean and reattach the connector, the unit will stay in simulator mode if it does not detect a transducer attached to it

Apr 21, 2014 | Garmin Gsd 21 Sounder Blackbox Fishfinder...

1 Answer

I have used the Gpsmap 178c for about 3 years now. Recently I have started be unable to find satelites, wass on or off. Once in a while it works. presently I get no satelites I would buy a new antenna...

Based on the problems I have seen with this unit the problem is the reciever circuit not the antenna, so you should consider a new unit, Garmin charges a fortune to repair these.

Sep 22, 2010 | Garmin GPSMAP 178C Sounder GPS Receiver

1 Answer

Sony KDS 55A2000 Unit has no Blue hue... only green and red. checked the inputs and sat box (sub'd) all the inputs are correct. can not adjust the hue to recover green. bulb is fairly new. ...

Unplug,replug tv and satalite box both an hour later.The tv,will reset itself,back to factory.Satalite box should upgrade it softwares.Tv now should have all it colors back.Not,than the Tuner board is dead.Tries websites like, to buy a refurbish Tuner board for the replacement.

Sep 14, 2010 | Sony KDS55A2000 55" HDTV

1 Answer

Beeping when backing up

hi pam from the uk ! the reverse signal/beep can be disconnected however there are different methods of how the beep is operated ? in uk some cars have the reverse light bulbs that are also a beep sounder when reverse engaged ? orthe sounder may be a seperate sounder unit at the rear located either in boot? or behind rear fender? or as you mention beep sounds inside boot area?? the sounder may be hidden behind one of the side panels in boot? if you put ignition on and select reverse then try finding beep location? if/when you find it? just disconnect wirefrom sounder and make sure reverse light/s still remain on tape up the wire disconnected out of way? if it is the bulbs that bleep? you will have to remove and fit an ordinary type bulb usually a flasher/ indicator bulb? hope this is of help and inspires you to diy ? best wishes

Nov 09, 2008 | 2007 Toyota Prius

2 Answers

Locks up after a few seconds/have to kill power to reset

This may help. Mine has the GPS antenna build into the bracket at the back. I removed the bracket and the unit did not go into the error screen and the sounder worked fine. The GPS would not locate but it has not antenna attached so DOH!! I have orderd a new antenna with the BNC connector and will post if that fixes the problem. At this point I'm guessing its a blow GPS antenna.


Oct 12, 2008 | Garmin GPSMAP 168 Sounder GPS Receiver

2 Answers


We have an old Hummingbird Depth Sounder (Wide 100, 94 model) and it turns on but must be on test mode or smething cause we can not get it off. Does anyone know or have a manual to solve this problem. Please help.

Aug 07, 2008 | Hummingbird GPS

3 Answers

Garmin 168 Sounder LCD screen display errors

I had the same problem and contacted Garmin. This is being caused by a software issue that started when the government updated the software in their WAAS satellites. The Garmin website will give you instructions on how to correct this but I have listed them below:

Power on unit
Press enter to get past the I Agree screen
Now you should be on the satellite page, press the menu button one time
Highlight WAAS off and press enter
By doing this, the unit should not shut down.

I followed these instructions and my 168 Sounder is working fine.

Jul 31, 2008 | Garmin GPSMAP 168 Sounder GPS Receiver

1 Answer

Depth Sounder does not display depth

I will see if I can get mine off the hull for testing. Still have found no procedure. Thinking about just replacing the sounder with another unit.

Jul 05, 2008 | Garmin 185 Sounder GPS Receiver

1 Answer

Raymarine A-65 unable to find satalites

If you have a loose RS12 try moving it around the deck and see if it make a diffrence.There might be something knocking it out.
If it is doing a cold start it cold take up to 10 min to get a fix. Once it has a fix it will aquire the next time much quicker.RS12's are mostly rock solid and get great fixes.
Also set the time up on the A65 to what you are at ,IE, universal time minus 5 if you are on the east coast of the US.Time set up is under the units menu. Hope this helps

May 17, 2008 | Raymarine A65 Combo GPS...

Not finding what you are looking for?
Garmin GPSMAP 168 Sounder GPS Receiver Logo

Related Topics:

56 people viewed this question

Ask a Question

Usually answered in minutes!

Top Garmin GPS Experts


Level 3 Expert

2130 Answers


Level 3 Expert

76848 Answers

TO Lady

Level 3 Expert

638 Answers

Are you a Garmin GPS Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides