Question about 2001 BMW 5 Series

6 Answers

My computer/GPS screen has gone blank. The battery unhook and hook-up didn't work. The computer was then sent to the manufacturer who said computer was working just fine! Has anyone else had this problem and do you have any suggestions. In addition, my "MODE" button has now stopped working and I can't switch from radio mode to CD or tape and can't play any music except the radio. Any help with this issue? Many thanks!

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  • slivkad May 11, 2010

    No, it's not just the GPS it's the whole system that is down. There has been a suggestion that it is the "cable" from the computer to the GPS system in the back of the car. Has anyone else had this problem?

  • slivkad May 11, 2010

    I need to know if anyone has had this exact issue with the computer/GPS screen and what they did to fix it. Since I have been through two different mechanics who also consulted with other "experts" and they found no solution, I am hoping for a more definative response rather than suggestions of possible problems, if there is an answer out there! Thanks!

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6 Answers

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  • Master
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It seems to me that you might have blown a fuse i would start there, since all the things that you mention are on the same circut with each other. If tyhe fuse is in tact you will have to trace each wire untill you find the break in the wire.

Posted on May 11, 2010

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  • BMW Master
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I read 1000's of problem posts and this is the 1st i have heard of this on your model, U are not going to resolve this over the internet, you need the dealer to do functional testing of the system with the BMW scanner.

Posted on May 11, 2010

  • yadayada
    yadayada May 11, 2010

    There is no definitive answer, any suggestions you get no matter whom the expert is an educated guess, period! have been a master electronic control system tech for 30 years, I ABSOLUTELY know what I am saying here is the fact of the matter, but suit yourself on this., and if you knew the part u couldn't fix it yourself, they DON NOT SELL PARTS FOR THIS UNIT TO THE PUBLIC, this will end up at the dealer if you ever plan to use the feature again, TRUST ME ON THAT.

    GOOD LUCK

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  • Master
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Ok it could be 1 of 2 things... firstly let me say that for the entire system to go down it has to be a power issue..

1.) the fuse (check the system fuse.. it should be clearly labled in the fuse box under the hood,, there is a diagram on the box that should be labled as to which fuse is which..

2.) the second cound be a broken data cable between the computer and the system check this cable..

Posted on May 11, 2010

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  • Master
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I would also suggest to inspect the wiring, especially to the ground wires first since this is the easiest and the cheapest fix. If the module was taken out and found out to be working, then there could be an issue on the components in the car which may likely be the wiring.

Posted on May 11, 2010

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  • BMW Master
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Similar comment from other BMW owners...
QUOTE
The same thing happened to my Nav system- twice! Both times as a result of jump start.

The problem is a tiny in-line surge protector (like 20mA or something). It's inside a small, rectangular box in the cables that connect your Nav system. Basically, I had to cut the wires (two, IIRC) to remove the box and then used a multimeter to determine where the fault lie.

Once the circuit- there's three, IIRC, is found. clip and remove the old resistor then solder on another. The resistor was about $.17 (that's cents). Since I didn't know what it was, I paid a guy $10 at a radio repair shop to diagnose and replace the first time.

It was inline with either the blue or red plug. My understanding is that the box acts as a surge protector to keep any spikes from killing the nav computer. In my case (and if your is also bad) it did it's job. The resistor (capcitor, I think) appeared normal. It should be inline with the blue and red/purple plugs shown in your picture. It's likely covered in cloth tape like the rest of the harness. It's less than 3/4" thick and about 2-3 long x 1" wide. But I don't REALLY recall the dimensions.

My car is a 2000, but I converted to the TV in Motion in '01 and MKIV in '03. I had a problem with the DVD portion and ordered another item (a cable, I think) in '04. I am unsure if the harness I have arrived with the car, in 01, or in '04.

When it broke in 06, I did call NavTV about the part. They said it wasn't used anymore. Which makes me think it came with the original TV In Motion kit.

This device perfectly fits your description. It is inline with the harness. The only thing that will diagnose it is a multimeter. Find a diagram of the plugs into (and out of) your NAV computer and which should be hot on ignition, then start your dagnosis. When you see which one isn't getting juice, trace the wire. My bet is you'll find an in-line device just like I've described somewhere along the harness. To test, you can simply bypass the harness (and it's protection) and see if you get light.

You should be able to bypass the traffic system. You could even bypass the TV and just go from the NAV computer straight to the nav screen, but I have a feeling that the problem lies along that harness.
END.

Hope helped.


Posted on May 11, 2010

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  • Master
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The gps may need an update which can be downloaded from the manufacture's website.

Posted on May 11, 2010

  • Nate Stansfield
    Nate Stansfield May 11, 2010

    Check all the cables and connections, many have found to be faulty, loose and can easily be bet or broken internally.

  • slivkad May 11, 2010

    The car repair people I have been working with (more than one!) have not been able to find anything in the connections. Do you have any other suggestions?



    thanks!

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