GX - 1st Gen (2004-2009) Discussion topics related to the 2003 -2009 GX470 models

NAV Issue - Unable to read data

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Old 10-06-12, 05:05 AM
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sprocket
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Default NAV Issue - Unable to read data

Yesterday as I took off for work, I noticed no map on my nav screen. Below is the message I am getting. This is a 2004 and my guess is the nav has never been updated. I bought the GX 3.5 years ago as a CPO. Any ideas on what is going on?
Attached Thumbnails NAV Issue - Unable to read data-img-20121005-00300.jpg  
Old 10-06-12, 12:54 PM
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tz693
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It happened a couple times for me. Could be a dirty DVD head. Try to remove the DVD and put it back again.
Old 10-07-12, 10:09 AM
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I located the DVD player for the Nav system under the passenger seat. I then popped off the plastic cover, slid the "opener", but when I pushed the eject button under the slider nothing happened. I tried it with the GX off and running. Any suggestions for getting the DVD out?
Old 10-07-12, 04:19 PM
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You need to have the GX key in the on position to turn on the power (not the engin). Hope this help.
Old 10-12-12, 04:31 AM
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Finally made the time to check this again. I had the key in the "on" position. The only "eject" button I found is the one under the "slider" on the front of the unit to the left side. Nothing happens when I push it. No sound at all. I checked the connections under the seat and everything appears OK.

When I first start in the morning, I do get the correct map for about 5 seconds followed by the message above. Not sure what this means. Is it possibly a fuse issue?
Old 10-12-12, 05:14 PM
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Originally Posted by sprocket
Finally made the time to check this again. I had the key in the "on" position. The only "eject" button I found is the one under the "slider" on the front of the unit to the left side. Nothing happens when I push it. No sound at all. I checked the connections under the seat and everything appears OK.

When I first start in the morning, I do get the correct map for about 5 seconds followed by the message above. Not sure what this means. Is it possibly a fuse issue?
You probably have old and damaged disc. See if you can find a replacement (and newer version!) disc on eBay. A few years old discs are relatively cheap.
Old 10-12-12, 05:31 PM
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tz693
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Originally Posted by sprocket
Finally made the time to check this again. I had the key in the "on" position. The only "eject" button I found is the one under the "slider" on the front of the unit to the left side. Nothing happens when I push it. No sound at all. I checked the connections under the seat and everything appears OK.

When I first start in the morning, I do get the correct map for about 5 seconds followed by the message above. Not sure what this means. Is it possibly a fuse issue?
Push the eject button, in 3-5 seconds, the DVD disc should eject. I don't know what is wrong. But I don't think it has anything to do with the fuse.
Old 10-14-12, 02:55 PM
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sprocket
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Hey TZ - I'm on vacation using my wife's car. Won't be able to work on this again until next weekend.
Old 12-02-12, 06:15 AM
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I decided to live with the problem for a while but it started to **** me off again. I tried to get the DVD to eject but nothing happens when I push the eject button. Is there an easy way to determine if the player is getting power? Anyone ever have to replace the unit?
Old 12-02-12, 08:47 AM
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Sorry for the multiple posts.

I did a little more research and was able to access the "hidden" service menu using the following sequence of tapping the screen in my first post:

top left
bottom left
top left again
bottom left again
top right
bottom right

It didn't work every time, but I got there. Apparently it is able to read the version and other disk info. When I tap on the Loading button, there are a bunch of choices, 2 for US. One was TAB and the other I think was RSW. I'm thinking maybe I'll try re-loading the maps. Still can't get the DVD to eject though.

Anyone have knowledge of this hidden service menu?
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