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Originally Posted by Friendship
Hi!
I have light problems after a change of the battery. I had the charger connected to the car during the change and this caused my FRM3 module to flip-out. I have been to a car-mechanic that looked with Autologic and the FRM module did not respond.
Therefor, I am looking for a solution instead of replacing this with a new or used FRM3 module and found this thread.
Right now I was wondering if I order a Eeprom programmer but do not know the MCU-type, What can I do if I don't know the type of MCU? Can I still program the unit?
I have opened the FRM3 unit but no information on the MCU. (attached picture)
I have a E91 -2010
Regards
Daniel
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The MCU will be a variant of the 9S12X finally...
It will be fine to erase eeprom then write a new one to the MCU. It's very simple. Just need XPROG or similar...