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Old 26th February 2011, 19:50   #1
hoop
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SatNav Screen has gone black!

Hi there. Yesterday my sat nav`s screen has gone black during normal driving and never went back to normal! The back light seems to be on I can still use radio etc. It has happened before but it fix itself after a few hours. What I noticed is that when I was driving across pot holes etc it was flickering but only for a few secs. I have tried to disconnect baterry, sat nav and leave it for a bit but it won`t work! Has anyone got any ideas what happened?
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Old 26th February 2011, 21:17   #2
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My MKIII nav in my 2001 540i/6 did the same thing when it was cold (below 20F). It would work fine once the car would warm up (only after restarting). I did some research and what I found was the consensus said that the nav computer itself was going bad. I sold the car (not because of this problem) but had I kept it, I would have used the issue as a reason to upgrade to a MKIV nav computer.

Dig around on bimmerforums and you'll find some info.

Good luck!
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Old 26th February 2011, 21:36   #3
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Just went for evening spin and sat nav screen is working again! haven`t got a clue what is going on but still while driving it goes off on pot holes etc.
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Old 26th February 2011, 23:13   #4
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Sounds like a loose connection or something.
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Old 27th February 2011, 13:07   #5
RichardP
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Bypass the Traffic Master system if you still have it installed.
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Old 27th February 2011, 15:13   #6
Dearny
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Another reason could be that your battery isn't receiving full charge, it has happened on my E39 (screen started up fine then used to flicker and go dim). Either your battery could be on the way out or possibly alternator, even a slipping fan belt can cause this, as it won't give the alternator what it wants. Get your battery tested to see if it's giving 12V or is dropping off.
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Old 27th February 2011, 18:57   #7
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as richard mentioned the traffic master can interupt the screen and go black
i disconnected mine and sorted..never got to the bottom of it though.
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Old 27th February 2011, 19:35   #8
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Quote:
Originally Posted by RichardP View Post
Bypass the Traffic Master system if you still have it installed.
Yes, I think TM is still plugged in. I don`t really know how to bypass TM yet but will look for info. Is it on the board maybe? Or should I just disconnect all the wires from TM unit?

Last edited by hoop; 27th February 2011 at 19:37.
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Old 27th February 2011, 19:45   #9
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unplug the blue connector on the tm,then near it is a male & female blue connector unplug that
with the remaining male blue plug put that into your tv module the plugs are all inline and connect the 2 units.
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