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      05-07-2012, 07:59 PM   #15
Mike@N54Tuning.com
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Drives: 2007 335i, 2015 M3
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The JB4 turns off the CAN system on map 0 so you should not need to physically disconnect the CAN wires with it. BMWs systems crap out all the time when connecting to cars, perhaps its just something on their end. Maybe have them try to connect/update and if it fails remove CAN wires on the spot to see if that helps.

Mike