BMW 3 series F30/F31 (2011-2015) computer data lines system Wiring diagrams

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

AUX-IN CONNECTION BLK WIRE BLK/BRN WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/RED WIRE BRN (OR VIO) WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE CENTRAL INFORMATION DISPLAY COMPUTER DATA LINES SYSTEM FRONT CENTER MID-RANGE SPEAKER GRN WIRE GRN/BRN WIRE GRN/RED WIRE GRY WIRE GRY/BRN WIRE GRY/RED WIRE HEAD UNIT HIFI AMPLIFIER HOT W/ LEFT FRONT MID-RANGE SPEAKER LEFT FRONT TWEETER LEFT FRONT WOOFER LEFT REAR MID-RANGE SPEAKER NCA WIRE ORG/ WIRE RED WIRE RED/WHT WIRE RED/YEL WIRE RELAY ENERGIZED REAR FUSE 122 FUSE HOLDER (RIGHT SIDE OF REAR COMPT) RIGHT FRONT MID-RANGE SPEAKER RIGHT FRONT TWEETER RIGHT FRONT WOOFER RIGHT REAR MID-RANGE SPEAKER VIO WIRE VIO/BRN WIRE VIO/RED WIRE W/ OPTIONAL EQUIPMENT W/O OPTIONAL EQUIPMENT WHT/BRN WIRE WHT/GRN WIRE WHT/RED WIRE YEL/BRN WIRE YEL/RED WIRE

1 2 MOST DATA BUS CIRCUIT AERIAL AMPLIFIER BASE PLATE BLK WIRE BLK/BRN WIRE BLK/RED WIRE BLU WIRE BLU/BRN WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE COMPUTER DATA LINES SYSTEM FUSE 121 FUSE 124 FUSE 155 FUSE 127 GPS ANTENNA GRN WIRE GRY WIRE GRY/BRN WIRE GRY/RED WIRE HEAD UNIT HOT W/ TERMINAL MOST DATA BUS CIRCUIT NCA WIRE NOISE SUPPRESSOR FILTER ORG/ WIRE ORG/GRN WIRE REAR FUSE HOLDER (RIGHT SIDE OF REAR COMPT) REAR WINDOW ANTENNA REAR WINDOW DEFOGGER REJECTOR CIRCUIT REAR WINDOW DEFOGGER REJECTOR CIRCUIT 2 RED WIRE RED/VIO WIRE RED/YEL WIRE ROOF AERIAL VIDEO MODULE (LEFT SIDE OF REAR COMPT) VIO WIRE W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BRN WIRE YEL/RED WIRE

BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE BRN/WHT WIRE CENTER CONSOLE OPERATING UNIT COMPUTER DATA LINES SYSTEM FUSE FUSE BOX GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES INTEGRATED CHASSIS MANAGEMENT (UNDER CENTER CONSOLE) LEFT FRONT MIDDLE ULTRASONIC SENSOR (BEHIND LEFT MIDDLE OF FRONT BUMPER) LEFT FRONT OUTER ULTRASONIC SENSOR LEFT REAR MIDDLE ULTRASONIC SENSOR (BEHIND LEFT SIDE OF REAR BUMPER) LEFT REAR OUTER ULTRASONIC SENSOR RED WIRE REM REAR ELECTRONIC MODULE (RIGHT REAR OF LUGGAGE COMPT) RIGHT FRONT MIDDLE ULTRASONIC SENSOR (BEHIND RIGHT MIDDLE OF FRONT BUMPER) RIGHT FRONT OUTER ULTRASONIC SENSOR RIGHT REAR MIDDLE ULTRASONIC SENSOR (BEHIND RIGHT SIDE OF REAR BUMPER) RIGHT REAR OUTER ULTRASONIC SENSOR YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/RED WIRE

BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/WHT WIRE CENTER CONSOLE OPERATING UNIT COMPUTER DATA LINES SYSTEM FUSE REAR COMPT) GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HOT W/ INTEGRATED CHASSIS MANAGEMENT (UNDER CENTER CONSOLE) LEFT FRONT MIDDLE ULTRASONIC SENSOR (BEHIND LEFT MIDDLE SIDE OF FRONT BUMPER) LEFT FRONT OUTER ULTRASONIC SENSOR LEFT PARKING MANEUVERING ASSISTANT ULTRASONIC SENSOR LEFT REAR MIDDLE ULTRASONIC SENSOR (BEHIND LEFT SIDE OF REAR BUMPER) LEFT REAR OUTER ULTRASONIC SENSOR PARKING ASSISTANT (RIGHT REAR OF LUGGAGE COMPT) REAR FUSE HOLDER (RIGHT SIDE OF RELAY ENERGIZED RIGHT FRONT MIDDLE ULTRASONIC SENSOR (BEHIND RIGHT MIDDLE SIDE OF FRONT BUMPER) RIGHT FRONT OUTER ULTRASONIC SENSOR RIGHT PARKING MANEUVERING ASSISTANT ULTRASONIC SENSOR RIGHT REAR MIDDLE ULTRASONIC SENSOR (BEHIND RIGHT SIDE OF REAR BUMPER) RIGHT REAR OUTER ULTRASONIC SENSOR YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/RED WIRE

2 3 4 5 PT CAN-L PT CAN-H TERM 30 SPLY GROUND BLU/RED WIRE BRN WIRE COMPUTER DATA LINES SYSTEM HOT AT ALL TIMES FUSE 116 FUSE HOLDER (RIGHT SIDE OF REAR COMPT) HOT AT ALL TIMES FUSE 117 HOT W/ LEFT REVERSIBLE ELECTROMOTIVE ELECTRICALLY MOTORIZED REEL REAR RED WIRE RED/BRN WIRE RELAY ENERGIZED FUSE 152 RIGHT REVERSIBLE ELECTROMOTIVE ELECTRICALLY MOTORIZED REEL

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

ALARM ANTI-THEFT BLK WIRE BLK/RED WIRE BLU WIRE BLU/GRY WIRE BOOT LID/TAILGATE LOCK BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BUS SIG CENTRAL LOCKING BUTTON HAZARD WARNING SWITCH OPERATING FACILITY COMPUTER DATA LINES SYSTEM ELECTROCHROMIC INTERIOR REAR VIEW MIRROR EXTERIOR BOOT LID BUTTON FUEL FILLER FLAP CENTRAL LOCKING DRIVE GRY/BLK WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/YEL WIRE HIGH VARIANT ROOF FUNCTION MODULE HOTEL POSITION SWITCH LID BUTTON LID CONTACT LOCK DRV REAR DRIVER'S SIDE DOOR LOCK (LEFT REAR DOOR) REAR ELECTRONIC MODULE (REM) (RIGHT REAR OF LUGGAGE COMPT) REAR PASSENGER'S SIDE DOOR LOCK (RIGHT REAR DOOR) REAR WIPER RED WIRE RED/GRY WIRE SYSTEM IND TERM 30 SPLY WHT WIRE WHT/YEL WIRE YEL/BRN WIRE YEL/RED WIRE

AERIAL DIVERSITY (CENTER REAR OF ROOF) BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE CAR ACCESS SYSTEM (UNDER LEFT SIDE OF DASH) COMFORT ACCESS CONTROL MODULE (RIGHT SIDE OF REAR COMPT) COMPUTER DATA LINES SYSTEM COUPE CONVERTIBLE COUPE W/ SUNROOF ELECTROCHROMIC INTERIOR REAR VIEW MIRROR FBD RECEIVER FUSE 25 FUSE 63 FUSE 7 GRN WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/VIO WIRE HIGH BEAM 1 2 ASSISTANT SENSOR, CONTROL HOT AT ALL TIMES HOT AT ALL TIMES JUNCTION BOX (UNDER RIGHT SIDE OF DASH) FUSE 62 HOT W/ HOT W/ TERMINAL 15 RELAY ENERGIZED LED ANTI- THEFT ALARM SYSTEM ORG/GRN WIRE POWER DISTRIBUTION SYSTEM PWR RED/BLK WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RELAY ENERGIZED REMOTE CONTROL RECEIVER ROOF FUNCTION CONTROL CENTER SIREN W/ TILT ALARM SENSOR

BRN WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM FRONT POWER DISTRIBUTION BOX (RIGHT REAR OF ENGINE COMPT) FUSE FUSE 141 FUSE 164 HOLDER (RIGHT SIDE OF REAR COMPT) GRN/VIO WIRE GRY WIRE LEFT REAR SEAT HEATING SWITCH REAR DRIVER'S SIDE SEAT BACKREST HEATING ELEMENT REAR DRIVER'S SIDE SEAT CUSHION HEATING ELEMENT REAR DRIVER'S SIDE SEAT HEATING MODULE REAR FUSE REAR PASSENGER'S SIDE SEAT BACKREST HEATING ELEMENT REAR PASSENGER'S SIDE SEAT CUSHION HEATING ELEMENT REAR PASSENGER'S SIDE SEAT HEATING MODULE RED/BRN WIRE RED/YEL WIRE RELAY ENERGIZED RIGHT REAR SEAT HEATING SWITCH WHT/BRN WIRE