[MrNice2028]

Car:
4/2011 BMW E90 320d aut. M-Sport.

I will start from the beginning.
I had a problem with the door handle in the drivers door. I took apart the door and fixed the problem. A day or two after I notice that I could not open any windows or lock the doors, from the master switch. Anything else, switch light and mirrors adjust, worked fine. I took apart the door again to troubleshoot and found that a screw from the door panel had gone right throw two wires - Red/Gray and Brown had bin shorted out right under the switch plug (See pic: https://ibb.co/jkGyX7). I fixed the bad wires, but could not clear code 9CBA, and the master switch did still not work. I troubleshooted everything and there is no broken og shorted out wires left in the door.

Well, the only thing it could be, was the master switch itself or the FRM module (See pic: https://ibb.co/cByZ5S). I borrowed a master switch from a 320d 2009 and 2010 (Switch looks the same, but partnumber do not match), but still no changes. The master switch from my car, worked fine in both cars I borrowed the switches from.
Well I went online and ordered a preeowened precoded FRM module from Ebay. I switched out the module, but still no changes. – Can’t clear the codes.

I am lost… If I connect the computer and do a self-test on the windows, all the windows goes up and down perfectly. All the other windows switches work perfectly, but the master switch does not.
I Googled my ass off, and the only thing I can find is a forum thread, where the Answer is “Pay to read” (See pic: https://ibb.co/ih0gkS)
Can anyone help me?? I am a former auto mechanic and know my way around a car, but this is to much for my little brain. :-)
I have a complete set of IMPA, Tool32 etc., but have little to no experience using that software.

Please help me.. :-)

[Charizad]

What was the fix?