Thanks Herb!Your unit sounds like it is running hot, or is getting low voltage. The easiest thing to do would be to measure battery voltage with the engine off, & the lights on. Anything less than 12 volts could be your problem. If that is the case, try charging your battery, to see if it will hold a full charge?
I did not run diagnostics on the car.The fiber optic connection is usually in the glove box area, on the left side. It runs to the rear electronics to the rear also. Have you had any diagnostics run on the car?
I would check the main/LVDS cable behind the screen, connecting the screen and the unit, easily accessible by pulling out the screen from the dash.Any views of why would my CCC screen keeps rolling up non stop when it is hot out there (with no AC) or when I put the roof down? Have 04 645ci.
If it is a physical problem with the LCD or cable, INPA will not detect a problem, as there will be no reported error...If you have the INPA software, you most likely have the DIS software. Once setup correctly, any module can be read, & diagnostics can be run to find the problem. DIS will run a quick test, & form a test plan to help find the problem in the problem module.
Is your NAV working properly? IS the complete screen rolling, or just the left side of the screen? Have you tried rebooting the IDrive by pressing the volume button, along with both eject buttons at the same time. Hold all 3 buttons in until the screen reboots.
If you have not setup the ediabis.ini, inpa.ini, & obd.ini correctly, the software will not communicate to the car. These are usually the problem items getting the software to work properly, along with the correct cable. The files can be found in this path" C:\EDIABAS\Bin " folder. You will also need to setup the proper com port in the device manager usb settings.
DIS or ISPA/D would be able to detect the problem in the module. Run the test on the ECM for that module. INPA might not be able to do this, but I don't use it enough to know for sure?If it is a physical problem with the LCD or cable, INPA will not detect a problem, as there will be no reported error...
New screen is arriving tomorrow, bought for $50 off ebay. Will keep you all posted with the outcome.My bets are the screen (if you aren't having any issues with the audio messing up, system rebooting, etc). They are around $100 used on eBay and very easy to swap out. :thumbup:
Update: LCD screen was bad. Thank you all for the help!My bets are the screen (if you aren't having any issues with the audio messing up, system rebooting, etc). They are around $100 used on eBay and very easy to swap out. :thumbup: