BMW 3 series GT F34 (2011-2016) Trailer tow circuit, early production

BLK/GRN WIRE BLK/GRY WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE CIRCUIT COMPUTER DATA COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM EXTERIOR EXTERIOR LAMPS EXTERIOR LAMPS CIRCUIT FULLY AUTOMATIC TOWING HITCH FUSE 113 FUSE 114 FUSE 139 GRN WIRE GRN/BLK WIRE GRY/BLK WIRE GRY/RED WIRE GRY/WHT WIRE HOT W/ BI-STABLE RELAY ENERGIZED HOT W/ TERMINAL LAMPS CIRCUIT LINES SYSTEM ORG/GRN WIRE REAR FUSE HOLDER REAR FUSE HOLDER (RIGHT SIDE OF REAR COMPT) RED/BLK WIRE RED/BLU WIRE RED/VIO WIRE RED/YEL WIRE SYSTEM TRAILER MODULE (RIGHT SIDE OF REAR COMPT) TRAILER SOCKET W/ TRAILER MODULE W/O TRAILER MODULE YEL/BLU WIRE YEL/RED WIRE