XSeries-forum

So i had my abs module repaired, refitted it and set up inpa software to erase any codes arising from driving it without the module attached. Only to find i now have a fault (sporadic error in external control unit ) 5A brief power interruption.
Anyone know hoe to cure this please ?

http://www.justanswer.com/bmw/3hj9m-hi- ... oblem.html
Certain forums are pointing to rear wheel sensors, and even a faulty brake light switch
Hope you get it sorted