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

2 3 COUPE RIGHT LUGGAGE COMPARTMENT LIGHT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COUPE COUPE CONVERTIBLE DRIVER'S DOOR ENTRANCE LIGHT ELECTRONICS JUNCTION BOX FRONT INTERIOR LIGHT FUSE 25 FUSE 41 FUSE 62 FUSE 7 FUSE 77 FUSE 84 FUSE 86 FUSE 81 GLOVE COMPARTMENT LIGHT GRN WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ TERMINAL HOT W/ TERMINAL 15 RELAY ENERGIZED INTERIOR LIGHTS JUNCTION BOX LEFT FRONT MAKE UP MIRROR SWITCH LEFT FRONT MAKE- UP MIRROR LIGHT LEFT LUGGAGE COMPA- RTMENT LIGHT LEFT REAR LID LOCK SWITCH MAP READING LIGHT ORG/GRN WIRE PASSENGER'S DOOR ENTRANCE LIGHT POWER DISTRIBUTION SYSTEM REAR INTERIOR LIGHT (COUPE) RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RED/YEL WIRE RELAY ENERGIZED RIGHT FRONT MAKE UP MIRROR SWITCH RIGHT FRONT MAKE- UP MIRROR LIGHT ROOF FUNCTION CONTROL CENTER TOP LIGHT TOWING HITCH RELEASE DRIVE UNIT (REAR OF VEHICLE) TRUNK LID CENTRAL LOCKING DRIVE (ON REAR COMPT DOOR) VIO WIRE VIO/BRN WIRE WHT WIRE YEL WIRE

2 3 COUPE RIGHT LUGGAGE COMPARTMENT LIGHT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COUPE COUPE CONVERTIBLE DRIVER'S DOOR ENTRANCE LIGHT ELECTRONICS JUNCTION BOX FRONT INTERIOR LIGHT FUSE 25 FUSE 41 FUSE 62 FUSE 7 FUSE 77 FUSE 84 FUSE 86 FUSE 81 GLOVE COMPARTMENT LIGHT GRN WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ TERMINAL HOT W/ TERMINAL 15 RELAY ENERGIZED INTERIOR LIGHTS JUNCTION BOX LEFT FRONT MAKE UP MIRROR SWITCH LEFT FRONT MAKE- UP MIRROR LIGHT LEFT LUGGAGE COMPA- RTMENT LIGHT LEFT REAR LID LOCK SWITCH MAP READING LIGHT ORG/GRN WIRE PASSENGER'S DOOR ENTRANCE LIGHT POWER DISTRIBUTION SYSTEM REAR INTERIOR LIGHT (COUPE) RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RED/YEL WIRE RELAY ENERGIZED RIGHT FRONT MAKE UP MIRROR SWITCH RIGHT FRONT MAKE- UP MIRROR LIGHT ROOF FUNCTION CONTROL CENTER TOP LIGHT TOWING HITCH RELEASE DRIVE UNIT (REAR OF VEHICLE) TRUNK LID CENTRAL LOCKING DRIVE (ON REAR COMPT DOOR) VIO WIRE VIO/BRN WIRE WHT WIRE YEL 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/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/RED WIRE BRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DYNAMIC STABILITY CONTROL (DSC) (LEFT REAR OF ENGINE COMPT) EDC ELECTRONIC DAMPER CONTROL (RIGHT SIDE OF REAR COMPT) FUSE 23 FUSE 63 GRN WIRE HOT AT ALL TIMES HOT W/ JUNCTION BOX LEFT FRONT ACCELERATION SENSOR (IN LEFT FRONT WHEELWELL) LEFT FRONT DAMPER VALVE (ON LEFT FRONT SHOCK ABSORBER ASSEMBLY) LEFT REAR DAMPER VALVE (ON LEFT REAR SHOCK ABSORBER ASSEMBLY) NCA WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RELAY ENERGIZED RF WHEEL SPD SIG LF WHEEL SPD SIG RIGHT FRONT ACCELERATION SENSOR (RIGHT FRONT WHEELWELL) RIGHT FRONT DAMPER VALVE (ON RIGHT FRONT SHOCK ABSORBER ASSEMBLY) RIGHT REAR ACCELERATION SENSOR (REAR OF RIGHT REAR WHEELWELL) RIGHT REAR DAMPER VALVE (ON RIGHT REAR SHOCK ABSORBER ASSEMBLY) TCU W/O NAVIGATION WHT/BLU WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/WHT 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

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

BLK WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE BRN/YEL WIRE CD CHANGER (LEFT SIDE OF REAR COMPT) FUSE 18 (UNDER RIGHT SIDE OF DASH) FUSE 19 GRN WIRE HOT AT ALL TIMES HOT W/ TERMINAL JUNCTION BOX LEFT FRONT MID-RANGE SPEAKER LEFT REAR MID-RANGE SPEAKER LEFT SUB- WOOFER MOST-BUS CONNECTOR NCA WIRE REAR-WINDOW AERIAL RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RELAY ENERGIZED RIGHT FRONT MID-RANGE SPEAKER RIGHT REAR MID-RANGE SPEAKER RIGHT SUB- WOOFER ROOF ANTENNA SATELLITE RECEIVER (LEFT SIDE OF REAR COMPT) W/ AUTOMATIC ENGINE START-STOP FUNCTION W/O AUTOMATIC ENGINE START-STOP FUNCTION WHT WIRE YEL/BRN WIRE YEL/RED WIRE

ACTIVE DRIVER'S STEERING SEAT MODULE ALL WHEEL DRIVE BLK WIRE BLU WIRE BRN WIRE CAR ACCESS SYSTEM CONTROLLER CONVERTIBLE COUPE CONVERTIBLE COUPE 7 7 DRIVER SEAT BELT POSITIONER CONTROLLER (COUPE) DYNAMIC TRANSFER STABILITY BOX CONTROL CONTROL (DSC) MODULE ELECTRIC FAN CUT-OUT RELAY (W/ FAN EXCEPT ALL WHEEL DRIVE FROM FUSE 71 (DIAGRAM 3 OF 6) FROM FUSE 88 (DIAGRAM 2 OF 6) FRONT PASSENGER SEAT BELT POSITIONER CONTROLLER (COUPE) FUSE 18 FUSE 24 FUSE 25 FUSE 26 FUSE 27 FUSE 28 FUSE 30 FUSE 45 FUSE 49 FUSE 46 FUSE 71 FUSE 85 GRN WIRE GRY WIRE JUNCTION BOX JUNCTION BOX (UNDER RIGHT SIDE OF DASH) PASSENGER'S DRIVER'S SEAT SEAT ADJUSTMENT ADJUSTMENT SWITCH SWITCH PASSENGER'S SEAT MODULE RED WIRE ROOF CONVERTIBLE FUNCTION TOP MODULE CONTROL (CTM) CENTER SATELLITE RECEIVER SIDE-IN COMPARTMENT STOP BUTTON TERMINAL TIRE PRESSURE CONTROL (RDC) TO DC/DC CONVERTER (DIAGRAM 5 OF 6) TO DC/DC CONVERTER TRAILER (DIAGRAM SOCKET 5 OF 6) TO FUSE 24 (DIAGRAM 3 OF 6) TO FUSE 65 (DIAGRAM 4 OF 6) TO JUNCTION BOX (DIAGRAM 4 OF 6) TO TERMINAL 15 RELAY (DIAGRAM 4 OF 6) TOWING HITCH RELEASE VIDEO MODULE VIO WIRE W/ MEMORY W/O BOSCH W/ BOSCH W/O MEMORY WHT WIRE YEL WIRE

ACTIVE CRUISE CONTROL BISTABLE RELAY BLK WIRE BLK/RED WIRE BLU WIRE BRN WIRE CCC/M-ASK CENTRAL INFORMATION DISPLAY COMBOX COUPE CONVERTIBLE DC/DC CONVERTER DRIVER'S PASSENGER'S LUMBAR LUMBAR SUPPORT SUPPORT SWITCH VALVE BLOCK DRIVER'S SEAT BACKREST WIDTH ADJUSTMENT SWITCH DRIVER'S SEAT BACKREST WIDTH ADJUSTMENT VALVE BLOCK EDC ELECTRONIC DAMPER CONTROL ELECTRONICS JUNCTION BOX FROM CAR ACCESS SYSTEM (DIAGRAM 3 OF 6) FROM FUSE 20 (DIAGRAM 5 OF 6) FROM FUSE 70 (DIAGRAM 4 OF 6) FROM JUNCTION BOX (DIAGRAM 3 OF 6) FROM JUNCTION BOX (DIAGRAM 4 OF 6) FROM TERMINAL 15 RELAY FUSE 61 (DIAGRAM ELECTRONICS 4 OF 6) JUNCTION BOX FUSE 20 FUSE 21 FUSE 22 FUSE 23 FUSE 56 FUSE 74 FUSE FUSE 77 FUSE FUSE GRN WIRE HEATING/AIR CONDITIONING SYSTEM GLOVE COMPARTMENT LIGHT INDEPENDENT/ AUXILIARY HEATING CONTROL MODULE INSTRUMENT CLUSTER CONTROL MODULE JUNCTION BOX JUNCTION BOX (UNDER RIGHT LEFT LUGGAGE COMPARTMENT LIGHT (CONVERTIBLE) NCA WIRE OBDII SOCKET PASSENGER'S LUMBAR SUPPORT SWITCH PASSENGER'S SEAT BACKREST WIDTH ADJUSTMENT SWITCH PASSENGER'S SEAT BACKREST WIDTH ADJUSTMENT VALVE BLOCK RED WIRE RED/BLK WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/WHT/YEL WIRE RED/YEL WIRE REMOTE CONTROL RECEIVER RIGHT LUGGAGE COMPARTMENT LIGHT SIDE OF DASH) TCU EJECT BOX TO FUSE 13 (DIAGRAM 6 OF 6) TO FUSE 19 (DIAGRAM 6 OF 6) TO FUSE 76 (DIAGRAM 5 OF 6) TRAILER MODULE TRANSMISSION CONTROL VIO WIRE WHT WIRE YEL WIRE

ACTIVE DRIVER'S STEERING SEAT MODULE ALL WHEEL DRIVE BLK WIRE BLU WIRE BRN WIRE CAR ACCESS SYSTEM CONTROLLER CONVERTIBLE COUPE CONVERTIBLE COUPE 7 7 DRIVER SEAT BELT POSITIONER CONTROLLER (COUPE) DYNAMIC TRANSFER STABILITY BOX CONTROL CONTROL (DSC) MODULE ELECTRIC FAN CUT-OUT RELAY (W/ FAN EXCEPT ALL WHEEL DRIVE FROM FUSE 71 (DIAGRAM 3 OF 6) FROM FUSE 88 (DIAGRAM 2 OF 6) FRONT PASSENGER SEAT BELT POSITIONER CONTROLLER (COUPE) FUSE 18 FUSE 24 FUSE 25 FUSE 26 FUSE 27 FUSE 28 FUSE 30 FUSE 45 FUSE 49 FUSE 46 FUSE 71 FUSE 85 GRN WIRE GRY WIRE JUNCTION BOX JUNCTION BOX (UNDER RIGHT SIDE OF DASH) PASSENGER'S DRIVER'S SEAT SEAT ADJUSTMENT ADJUSTMENT SWITCH SWITCH PASSENGER'S SEAT MODULE RED WIRE ROOF CONVERTIBLE FUNCTION TOP MODULE CONTROL (CTM) CENTER SATELLITE RECEIVER SIDE-IN COMPARTMENT STOP BUTTON TERMINAL TIRE PRESSURE CONTROL (RDC) TO DC/DC CONVERTER (DIAGRAM 5 OF 6) TO DC/DC CONVERTER TRAILER (DIAGRAM SOCKET 5 OF 6) TO FUSE 24 (DIAGRAM 3 OF 6) TO FUSE 65 (DIAGRAM 4 OF 6) TO JUNCTION BOX (DIAGRAM 4 OF 6) TO TERMINAL 15 RELAY (DIAGRAM 4 OF 6) TOWING HITCH RELEASE VIDEO MODULE VIO WIRE W/ MEMORY W/O BOSCH W/ BOSCH W/O MEMORY WHT WIRE YEL WIRE