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  #1  
Old 02-08-2015, 07:11 PM
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Issue with windows/mirrors

Hey guys, I got a 2007 4.8 x5
I've been having issues with my windows. Randomly the window switches stopped working (3 windows - both rear and driver side) Passenger window goes up and down no problem with the side switch. Master switch doesn't seem to work at all (changing mirrors placement doesn't work) I'm not exactly sure why. I checked fuses that I could find and they look ok (tested with multimeter - I didn't pull them out)
I unplugged the negative cable from the battery and still same issue. Any ideas where to look?
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Old 02-08-2015, 07:48 PM
ard ard is offline
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You might want to figure out how to connect a coding cable to your car and look for error codes from modules.

I believe there is a door control module in the driver door...not sure.
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Old 02-08-2015, 08:00 PM
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I'll check with my bmwhat app and post back. I believe there was a Lin communication error but I wasn't sure what it was. I'll post back.
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Old 02-08-2015, 08:14 PM
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This is the error I got from bmwhat
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Old 02-08-2015, 08:34 PM
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LIN bus is the communication channel between the master window switch,mirrors and the Footwell module(FRM).
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Old 02-08-2015, 08:39 PM
ard ard is offline
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"Fussraum modul" is foot rest module. As is "FRM"

E70

Of course if you cant read russian, it might not be much use. try google translate
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Old 02-08-2015, 08:40 PM
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So what exactly am I looking for? Module? Loose connection? Also if you can point me where to look that would help me greatly.
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Old 02-08-2015, 08:53 PM
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If the lights and other stuff work correctly the problem probably is not in the FRM. You want to disconnect the mirrors and the master window switch and clear then check the codes again. If the LIN bus code is gone you can start connecting them one by one and check the codes to see when the LIN bus problem will reappear. My best guess is for the master switch faulty, so you try disconnecting it first and check the codes.
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Old 02-08-2015, 09:09 PM
ard ard is offline
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^ There is a little 'scale' icon in each post. This is a way of voting for a user/post.

So when I clicked on bawareca's it said "You need to spread some reputation around before giving it to bawareca again"...

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Old 02-08-2015, 09:22 PM
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Quote:
Originally Posted by ard View Post
^ There is a little 'scale' icon in each post. This is a way of voting for a user/post.

So when I clicked on bawareca's it said "You need to spread some reputation around before giving it to bawareca again"...


I like to give reputation too
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