gef

HI all Could anyone tell me what the green and orange striped cable is under the bonnet (Transit connect 2011 1.8 tdci 90bhp) It is a power supply not a ground cable and the power is cut when ignition is switched off and then a relay shuts off power after after 30 seconds There is a lable on the cable stating BCF also there has been a crimp snapped off at one point makeing me belive it was connected to somthing at some point your help will be great cheers