BMW 3 series F30/F31 (2011-2015) fuse 503 Wiring diagram

ACT ACTIVATION ALTERNATOR BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BSD BUS SIG COOLING FANS SYSTEM DIGITAL MOTOR ELECTRONICS (LOWER LEFT SIDE OF ELEC TRTL ACT GND ELEC TRTL ACT SIG ENGINE FRONT POWER DISTRIBUTION BOX (RIGHT REAR OF ENGINE COMPT) FUSE 104 FUSE 23 FUSE 503 FUSE BOX GRN/YEL WIRE HOT AT ALL TIMES HOT W/ KNOCK SENS SIG KNOCK SENSOR CYL CYL 1-3 4-6 NCA WIRE OXYGEN SENSOR BEFORE CATALYTIC CONVERTER QUANTITY CONTROL VALVE RED WIRE RED/GRN WIRE RED/GRY WIRE RELAY ENERGIZED RELAY ENERGIZED REAR FUSE HOLDER (RIGHT SIDE OF REAR COMPT) FUSE 146 SENS GND SENS SIG SENS SPLY SPLY TRANSFER TERMINAL POINT VIO WIRE VLV ACTIVATION VLV SPLY WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/WHT WIRE ZERO GEAR SENSOR (TOP OF TRANSMISSION)