Random "Load new map data" question - problem?

[jaybart]

Curious if anybody has seen this. My PCM 2.1 nav system intermittendly confronts me with the question "Load new map data?" (screenshot below). This happens without me having done anything - i.e. not ejected/reinserted the nav disk. It happens every couple of days when I start the car in the garage or a parking lot and I have also had it while driving along. Really strange. I always answer yes, a progress bar apprears and shows the load progress and after a minute or so everything seems normal again. Nav works, music plays, etc.

Anybody got any ideas why this could be? I doubt it has anything to do with it, but for completeness, I have a mobridge with blutooth on the MOST bus as well as the bose system but no CD changer. 06 C2S cab, Porsche nav system dealer installed 8 months ago.

Edited January 26, 2010 by jaybart

[larrytrk]

Curious if anybody has seen this. My PCM 2.1 nav system intermittendly confronts me with the question "Load new map data?" (screenshot below). This happens without me having done anything - i.e. not ejected/reinserted the nav disk. It happens every couple of days when I start the car in the garage or a parking lot and I have also had it while driving along. Really strange. I always answer yes, a progress bar apprears and shows the load progress and after a minute or so everything seems normal again. Nav works, music plays, etc.

Anybody got any ideas why this could be? I doubt it has anything to do with it, but for completeness, I have a mobridge with blutooth on the MOST bus as well as the bose system but no CD changer. 06 C2S cab, Porsche nav system dealer installed 8 months ago.

I had that randomly, with my 06S, Dension, bta-1500,bose and no CD changer , after updating to 08 map software and map data. It went away eventually, or at least became less of a problem.

They could try a reinstall of the updated Maps, There is a new version out now, anyway.

[berty987]

Sounds like your navi drive is losing its memory, do you have an intermittent power problem on the navi drive? The only other thing that can cause this is condensation on the map DVD or use of a backup rather than original disc.

[jaybart]

Sounds like your navi drive is losing its memory, do you have an intermittent power problem on the navi drive? The only other thing that can cause this is condensation on the map DVD or use of a backup rather than original disc.

Thanks for the response. I'm kind of glad you're pointing to power and not the MOST - seems to me that could be much harder to troubleshoot. Is there something definite to rule out the MOST connection as the source of the problem? In the meantime I'll check the power connections on the drive and see if there might be something "wiggly" there.

On the other points: I'm using the original disk and I'll consider condensation last as the car hardly ever gets wet, is always garaged, lives in Southern California, and the problem does show up after passing bumps at times - but puzzeling enough also at times when just pulling out of the garage. Actually most of the cases are when just getting into the car and starting it ...

So hopefully I find a loose power or ground connection ... I'll let you know.

[berty987]

The DVD drive could have a dirty lense or it could be the gimball mounts are getting tired., this would cause data read errors resulting in the errors you see. I know Cd changers with the same problem can be refurbished. A quick spin with a DVD lens cleaner may also help. The PCM acts the timer and sequencer so if its a MOST issue it could be expensive...

[vizcarra44]

The DVD drive could have a dirty lense or it could be the gimball mounts are getting tired., this would cause data read errors resulting in the errors you see. I know Cd changers with the same problem can be refurbished. A quick spin with a DVD lens cleaner may also help. The PCM acts the timer and sequencer so if its a MOST issue it could be expensive...

Edited October 29, 2010 by vizcarra44