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

1 2 ACTIVATION- ACTIVATION- ACTIVATION- ACTIVATION- ACTIVATION- SWF SIG HALL SNS HALL SNS SWF SIG- HALL SNS AERIAL DIVERSITY (CENTER REAR OF ROOF) BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/GRN WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAN-H- CAN-L- CAR ACCESS SYSTEM (UNDER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONVERTIBLE TOP MODULE (CTM) FUSE 106 FUSE 25 GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/RED WIRE HARDTOP DRIVE UNIT RELAY 1 (ON HARDTOP DRIVE UNIT) HARDTOP LOCK DRIVE UNIT HARDTOP OPERATING UNIT HOT AT ALL TIMES JUNCTION BOX (UNDER RIGHT SIDE OF DASH) LED ACT GRN- WIRE LED ACT RED- WIRE LEFT AUTOMATIC SOFT CLOSE DRIVE (LEFT SIDE OF RETRACTABLE HARDTOP STOWAGE COVER) LEFT COUPLING FASTENER CLOSED MICRO SWITCH (LEFT SIDE OF CONVERTIBLE TOP COMPT) NCA WIRE ORG/GRN WIRE REAR FUSE HOLDER (RIGHT SIDE OF REAR COMPT) REAR MODULE ALMOST CLOSED HALL SENSOR REAR MODULE OPEN HALL SENSOR RED WIRE RED/GRY WIRE RELAY ENERGIZED RETRACTABLE HARDTOP OUTPUTS RETRACTABLE HARDTOP INPUTS RIGHT COUPLING FASTENER CLOSED MICRO SWITCH RIGHT COUPLING FASTENER OPENED HALL SENSOR ROOF OPEN/ CLOSE SW SIG SWF SIG- SWF SIG- SWF SIG HALL SNS HALL SNS SIG HALL SNS SIG SWF SIG SWF SIG- SWF SIG- SWF SIG- SWF SIG- GND TOWING HITCH RELEASE DRIVE UNIT (REAR OF VEHICLE) WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE WHT/YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/RED 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

BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM 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) FRONT POWER DISTRIBUTION BOX (RIGHT REAR OF ENGINE COMPT) FUSE 67 GRN WIRE GRN/VIO WIRE GRY WIRE HEATING/AIR CONDITIONING SYSTEM (CENTER OF DASH, ABOVE RADIO) K-CAN BUS SIG ORG/GRN WIRE RED WIRE RED/BRN WIRE RELAY ENERGIZED VIO WIRE YEL/BRN WIRE

BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER'S SEAT BACKREST HEATING ELEMENT (IN DRIVER SEAT BACK) DRIVER'S SEAT CUSHION HEATING ELEMENT (IN DRIVER SEAT CUSHION) DRIVER'S SEAT HEATING MODULE (UNDER DRIVER SEAT) FRONT PASSENGER'S SEAT HEATING MODULE (UNDER FRONT PASSENGER'S SEAT) FRONT POWER DISTRIBUTION FUSE 65 BOX (RIGHT REAR OF ENGINE COMPT) FUSE 64 GRN WIRE GRN/VIO WIRE GRY WIRE HEATING/AIR CONDITIONING SYSTEM (CENTER OF DASH, ABOVE RADIO) K-CAN BUS SIG ORG/GRN WIRE PASSENGER'S SEAT BACKREST HEATING ELEMENT (IN PASSENGER SEAT BACK) PASSENGER'S SEAT CUSHION HEATING ELEMENT (IN PASSENGER SEAT CUSHION) RED WIRE RED/BLU WIRE RELAY ENERGIZED VIO WIRE WHT/BRN WIRE YEL/BRN WIRE

2 1 M+ M- 4 3 2 1 LHZ+ T LHZ+ T LHZ- LHZ- BLK WIRE BLU/GRN WIRE BRN WIRE COMPUTER DATA LINES SYSTEM ELECTRONIC STEERING WHEEL MODULE FANFARE HORN BUTTON FRONT POWER DISTRIBUTION BOX (RIGHT REAR OF ENGINE COMPT) FUSE 48 LEFT SHIFT PADDLE LEFT STEERING WHEEL MULTI-FUNCTION SWITCH BLOCK NCA WIRE PWM BFI GND RED WIRE RED/BLK WIRE RELAY ENERGIZED RIGHT SHIFT PADDLE RIGHT STEERING WHEEL MULTI-FUNCTION SWITCH BLOCK STEERING COLUMN SWITCH CLUSTER STEERING WHEEL HEATER STEERING WHEEL HEATING SWITCH VIBRATION ACTIVATOR

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

ANTI-THEFT ALARM SYSTEM ANTI-THEFT SYSTEM BRN WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM ELECTROCHROMIC INTERIOR REARVIEW MIRROR FRONT ELECTRONIC MODULE (FEM) (RIGHT END OF DASH) FRONT POWER DISTRIBUTION BOX (RIGHT REAR OF ENGINE COMPT) FUSE 42 GRN WIRE GRN/BRN WIRE GRY/BLK WIRE GRY/VIO WIRE HIGH BEAM ASSISTANT SENSOR, CONTROL HOT W/ LIN BUS SIG RELAY ENERGIZED TER 15 SPLY YEL/BRN WIRE YEL/RED WIRE

BLK WIRE BLK/BLU WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER LUMBAR SUPPORT VALVE BLOCK (LEFT SIDE OF DRIVER SEAT BACK) DRIVER'S SEAT BACKREST WIDTH ADJUSTMENT SWITCH DRIVER'S SEAT PNEUMATIC PUMP DRIVER'S SIDE SEAT ADJUSTMENT SWITCH BLOCK DRIVERS SEAT MODULE (UNDER DRIVER SEAT) FRONT PASSENGER'S LUMBAR SUPPORT VALVE BLOCK (RIGHT SIDE OF PASSENGER SEAT BACK) FRONT PASSENGER'S SEAT BACKREST WIDTH ADJUSTMENT SWITCH FRONT PASSENGER'S SEAT PNEUMATIC PUMP FRONT PASSENGER'S SIDE SEAT ADJUSTMENT SWITCH BLOCK FRONT POWER DISTRIBUTION BOX (RIGHT REAR OF ENGINE COMPT) FUSE 27 FUSE 68 GRN WIRE ORG/GRN WIRE RED WIRE RED/BLU WIRE RED/YEL WIRE RELAY ENERGIZED WHT WIRE YEL WIRE YEL/BLU WIRE YEL/WHT WIRE