The schematic on the link is a bit unclear but following it or the BMW drawings I have show that F1, F7 and the load relief relay have a common connection to the switch. However the common connection is on the battery side not the load side of the fuses so a bad load relief relay won't overload F1 or F7.
Originally Posted by 1911XD
This might be a bit clearer on this drawing: http://www.mac-pac.org/wp-content/up...ec_Diagram.pdf. Although it is for the 1100RT, the wiring is the same for those circuits.