BMW 3 series F30/F31 (2011-2015) electronics junction box Wiring diagrams

19 18 CAN H CAN L 29 27 28 51 52 GND SIG LOCATING LAMP HOTEL POS SW GND BLK WIRE BLK/RED WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BONNET CONTACT SWITCH BRN WIRE BRN/BLK WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVERS DOOR LOCK (LEFT FRONT DOOR) EARLY PRODUCTION ELECTRONICS JUNCTION BOX FRONT ELECTRONIC MODULE (RIGHT END OF DASH) FRONT PASSENGER'S DOOR LOCK (RIGHT FRONT DOOR) FUSE 103 FUSE 104 (RIGHT SIDE OF REAR COMPT) FUSE 5 FUSE 500 FUSE 504 FUSE 7 GRN/BLK WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT AT ALL TIMES FUSE BOX INTERIOR REAR LID BUTTON LATE PRODUCTION LIN BUS SIG POWER DISTRIBUTION SYSTEM REAR FUSE HOLDER RED WIRE RED/BRN WIRE RED/GRY WIRE REMOTE CONTROL RECEIVER SIREN W/ TILT ALARM SENSOR SW SIG TERM 30 SPLY VIO/GRN WIRE WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL/BRN WIRE

1 2 3 4 5 6 7 8 9 10 11 12 GND 1 2 3 4 5 6 7 8 9 10 11 12 GND CAN BUS SIG CAN BUS SIG 3.0L A/C, REFRIGERANT COMPRESSOR CONTROL VALVE (RIGHT FRONT OF ENGINE) AIR DISTRIBUTION MICRO SWITCH (CENTER OF DASH) AUXILIARY WATER PUMP (LEFT REAR OF ENGINE COMPT) BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLOWER MOTOR (BEHIND RIGHT SIDE OF DASH) BLOWER OUTPUT STAGE BLOWER SIG SENS GRD VOLT SPLY SENS SPLY SENS SIG BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE CENTER CONSOLE SWITCH CENTER COMPUTER DATA LINES SYSTEM CONDENSATION SENSOR (CENTER OF WINDSHIELD) CONVERTIBLE EXCEPT CONVERTIBLE ELECTRONICS JUNCTION BOX EVAPORATOR TEMPERATURE SENSOR (CENTER OF DASH) FOOTWELL TEMPERATURE SENSOR FUSE 6 FUSE 77 FUSE 88 GRN WIRE GRN/RED WIRE HEATER HEATING/AIR CONDITIONING SYSTEM (CENTER OF DASH, ABOVE RADIO) HOT AT ALL TIMES HOT W/ HOT W/ TERMINAL 15 RELAY ENERGIZED INDEPENDENT HEATING CIRCUIT JUNCTION BOX (UNDER RIGHT SIDE OF DASH) MIXING AIR CONTROL SOLAR SENSOR (TOP CENTER OF DASH) NCA WIRE ORG/GRN WIRE POWER DISTRIBUTION SYSTEM REAR COMPARTMENT FRESH AIR GRILLE RED WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RELAY ENERGIZED ROOF FUNCTION CONTROL CENTER VENTILATION TEMPERATURE SENSOR (CENTER OF DASH) WATER VALVE (LEFT SIDE OF AUXILIARY WATER PUMP) WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/GRY WIRE YEL WIRE YEL/BRN WIRE YEL/RED WIRE

11 15 26 29 30 8 26 24 14 35 37 F CAN H PT CAN L F CAN L WAKE UP PT CAN H RR SIG 2 4 5 6 12 1 3 4 SPLY TERM 30 1 3 11 GND GND GND 3.0L 3.0L TURBO, 3.0L TURBO HYBRID, 335XI 3.0L TWIN TURBO 2.0L TURBO, 335IS 3.0L TWIN TURBO ACTIVE CRUISE CONTROL (EXCEPT SEDAN) (CENTER OF FRONT BUMPER) BLK WIRE BLK/VIO WIRE BLU WIRE BLU/BRN WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/YEL WIRE CAR ACCESS SYSTEM (UNDER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DYNAMIC STABILITY CONTROL (DSC) (LEFT REAR OF ENGINE COMPT) ELECTRONICS JUNCTION BOX FUSE 21 FUSE 65 (UNDER RIGHT SIDE OF DASH) FUSE 37 FUSE 75 GRN WIRE GRN/RED WIRE HOT AT ALL TIMES HOT W/ DME RELAY ENERGIZED JUNCTION BOX LONGITUDINAL DYNAMICS MANAGEMENT (LEFT SIDE OF DASH) ORG/ WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE RELAY ENERGIZED SIGNAL SPLY ACC GND ACC SIG ACC SPLY ACC GND ACC SIG ACC 7 11 32 24 27 16 SPLY STEERING COLUMN SWITCH CLUSTER W/ BOSCH W/O BOSCH WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE

BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/RED WIRE BLU/YEL WIRE BRN GRY/ WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE COMPUTER DATA LINES SYSTEM CONTROL SYSTEM ELECTRONIC SIGNAL LAMP DAYTIME SIDE/ DIRECTION DRIVING ELECTRONICS JUNCTION BOX FOOTWELL MODULE (UNDER LEFT SIDE OF DASH) FUSE 31 FUSE 32 FUSE 41 FUSE 71 FUSE 81 FUSE 84 FUSE 86 GRN WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/VIO WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ BI-STABLE RELAY ENERGIZED HOT W/ TERMINAL JUNCTION BOX (UNDER RIGHT SIDE OF DASH) LED TURN LED TURN SIGNAL LEFT LEFT FRONT DIRECTION INDICATOR LIGHT REPEATER LICENSE PLATE LIGHT LIGHT ORG/GRN WIRE POSITIONING RED WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RED/YEL WIRE RIGHT FRONT DIRECTION INDICATOR LIGHT REPEATER RIGHT HEADLIGHT RIGHT LICENSE PLATE LIGHT SIDE MARKER SIDE/ DAYTIME DRIVING W/O LED W/ LED YEL WIRE YEL/BLK WIRE YEL/VIO WIRE YEL/WHT WIRE

BLU WIRE BRN WIRE CENTER CONSOLE SWITCH CENTER COMPUTER DATA LINES SYSTEM COUPE CONVERTIBLE DRIVER'S SEAT BACKREST HEATING ELEMENT (IN DRIVER SEAT BACK) DRIVER'S SEAT CUSHION HEATING ELEMENT (IN DRIVER SEAT CUSHION) DRIVERS SEAT MODULE (UNDER DRIVER SEAT) ELECTRONICS JUNCTION BOX FUSE 45 FUSE 46 GRN WIRE HEATING/ AIR CONDITIONING JUNCTION BOX (UNDER RIGHT SIDE OF DASH) NCA WIRE ORG/ WIRE ORG/GRN WIRE PASSENGER SEAT MODULE (UNDER FRONT PASSENGER'S SEAT) PASSENGER'S SEAT BACKREST HEATING ELEMENT (IN PASSENGER SEAT BACK) PASSENGER'S SEAT CUSHION HEATING ELEMENT (IN PASSENGER SEAT CUSHION) RED WIRE RED/BRN WIRE RED/YEL WIRE RELAY ENERGIZED RELAY ENERGIZED FUSE 77 SYSTEM (CENTER OF DASH, ABOVE RADIO) WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE

BLK WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAR ACCESS SYSTEM (UNDER LEFT SIDE OF DASH) ELECTRONICS JUNCTION BOX FANFARE HORN FUSE 57 GRN WIRE HORN SWITCH HOT AT ALL TIMES REAR FUSE HOLDER (RIGHT SIDE OF REAR COMPT) FUSE 101 JUNCTION BOX LEFT HORN (LEFT SIDE OF FRONT BUMPER) RED WIRE RELAY RIGHT HORN (RIGHT SIDE OF FRONT BUMPER) STEERING COLUMN SWITCH CLUSTER TERMINAL 15 RELAY VIO/BLU WIRE

AUXILIARY HEATER SWITCH OVER VALVE BLK WIRE BRN WIRE BRN/RED WIRE ELECTRONICS JUNCTION BOX FUSE 23 HEATER HEATING/AIR CONDITIONING SYSTEM (CENTER OF DASH, ABOVE RADIO) INDEPENDENT AUXILIARY HEATER CONTROL MODULE (LEFT SIDE OF FRONT BUMPER) METERING PUMP (UNDER VEHICLE) NCA WIRE RED/GRN WIRE RED/GRY WIRE RELAY ENERGIZED JUNCTION BOX (UNDER RIGHT SIDE OF DASH) WHT/BLU WIRE YEL/BRN WIRE

ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/RED/WHT WIRE BLK/RED/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/BRN/YEL WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/BLK/WHT WIRE BRN/BLK/YEL WIRE BRN/WHT WIRE CENTRAL INFORMATION DISPLAY COMPT) COOLANT LEVEL SWITCH (RIGHT SIDE OF ENGINE COUPE ELECTRIC FUEL PUMP (RIGHT TANK HALF FUEL LEVEL SENSOR) (UNDER RIGHT REAR SEAT) ELECTRONICS JUNCTION BOX FUEL LEVEL SENSOR (UNDER LEFT REAR SEAT) FUSE 74 GRN WIRE INSTRUMENT CLUSTER CONTROL MODULE JUNCTION BOX (UNDER RIGHT SIDE OF DASH) LEFT HALF TANK FUEL LEVEL SENSOR ELECTRIC FUEL PUMP (UNDER RIGHT REAR SEAT) LEFT TANK HALF ORG/ WIRE ORG/GRN WIRE OUTSIDE TEMPERATURE SENSOR (FRONT CENTER OF BUMPER) PARKING BRAKE WARNING SWITCH (UNDER CENTER CONSOLE) RED WIRE RED/BLU WIRE RIGHT HALF TANK FUEL LEVEL SENSOR STEERING COLUMN SWITCH CENTER WHT WIRE YEL WIRE

19 18 CAN H CAN L 29 27 28 51 52 GND SIG LOCATING LAMP HOTEL POS SW GND BLK WIRE BLK/RED WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BONNET CONTACT SWITCH BRN WIRE BRN/BLK WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVERS DOOR LOCK (LEFT FRONT DOOR) EARLY PRODUCTION ELECTRONICS JUNCTION BOX FRONT ELECTRONIC MODULE (RIGHT END OF DASH) FRONT PASSENGER'S DOOR LOCK (RIGHT FRONT DOOR) FUSE 103 FUSE 104 (RIGHT SIDE OF REAR COMPT) FUSE 5 FUSE 500 FUSE 504 FUSE 7 GRN/BLK WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT AT ALL TIMES FUSE BOX INTERIOR REAR LID BUTTON LATE PRODUCTION LIN BUS SIG POWER DISTRIBUTION SYSTEM REAR FUSE HOLDER RED WIRE RED/BRN WIRE RED/GRY WIRE REMOTE CONTROL RECEIVER SIREN W/ TILT ALARM SENSOR SW SIG TERM 30 SPLY VIO/GRN WIRE WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL/BRN WIRE

1 2 3 4 5 6 7 8 9 10 11 12 GROUND 1 2 3 4 GROUND K-CAN L K-CAN H BRN WIRE CENTER CONSOLE SWITCH CENTER ELECTRONICS JUNCTION BOX FUSE GRN WIRE HEATING/AIR CONDITIONING SYSTEM (CENTER OF DASH, ABOVE RADIO) JUNCTION BOX (UNDER RIGHT SIDE OF DASH) NCA WIRE ORG/GRN WIRE REAR WINDOW ROLLER SUN BLIND MOTOR (BEHIND REAR SEATS, CENTER OF REAR WINDOW) RED/YEL WIRE RELAY ENERGIZED WHT WIRE YEL WIRE