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Old 06-18-2013, 01:51 PM
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Join Date: Jun 2013
Location: Loire
Car: BMW 320D E90
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Default Pb AM/FM radio reception on E90

I have a very big problem of radio reception on my E90, equiped with a stereo BMW Professionnel. No more AM/FM reception. I have replaced the diversity module (190 eur) but i get no change. The ODB diagnostic gives an error from the RAD2 control module : "ABCC 0xABCC: RAD ON short circuit error".
Who knows the meaning ?? What schould I do ?
Help !!!

Last edited by Ghys_serie3; 06-29-2013 at 01:37 PM.

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Old 06-28-2013, 02:29 PM
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Car: BMW 320D E90
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Hello ?? Nobody for any help ? My problem is still unsolved. I replaced the antenna diversity module, but still no reception.
I tried to disconnect the diversity module and to plug a thin phone wire into the antenna connection (number X13344 on the electronic wire description) I get proper FM reception, so I can deduce that my tuner is working fine, and that the antenna wire is properly connected to the radio.
I wanted to check the Rad_on power supply : this is the power supply from eht radio to the diversity module. The plug comes into the module on the passenger side (number X1143 on the electronic description) and brings in fact 3 wires and not 1 as in the description. I have tested the wire and get 5v and 8v.
Is there anyone whi can help and explain in detail what are these 3 wire correspond to and the voltage we should get ?

Part of the wire drawing : [Only for registered users... ]

Last edited by Ghys_serie3; 06-29-2013 at 01:56 PM.
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