BMW 3 series E90/E91/E92/E93 facelift (2008-2013) junction box electronics Wiring diagrams

ACTIVE STEERING (IF EQUIPPED) (BEHIND LEFT FRONT WHEEL) BLU WIRE BLU/BRN/YEL WIRE BLU/RED WIRE BLU/VIO WIRE BRAKE FLUID LEVEL SWITCH (LEFT REAR OF ENGINE COMPT) BRAKE LIGHT SWITCH (UNDER LEFT SIDE OF DASH) BRK FLD LVL RF WHL SPD BRN WIRE BRN/BLK WIRE BRN/GRN/YEL WIRE BRN/RED WIRE BRN/WHT WIRE CAR ACCESS SYSTEM (UNDER LEFT SIDE OF DASH) CC/M-ASK COMPUTER DATA LINES SYSTEM DYNAMIC STABILITY CONTROL (DSC) (LEFT REAR OF ENGINE COMPT) EDC ELECTRONIC DAMPER CONTROL (RIGHT SIDE OF REAR COMPT) EXCEPT 3.0L TWIN TURBO DIESEL 3.0L TWIN TURBO DIESEL FUSE GRN/RED WIRE GROUND F-CAN-LOW HAZARD WARNING SWITCH HOT AT ALL TIMES JUNCTION BOX (UNDER RIGHT SIDE OF DASH) JUNCTION BOX ELECTRONICS LEFT FRONT BRAKE PAD WEAR SENSOR (BEHIND LEFT FRONT WHEEL) LEFT REAR WHEEL SPEED SENSOR (BEHIND LEFT REAR WHEEL) NCA WIRE PARKING BRAKE WARNING SWITCH (UNDER CENTER CONSOLE) RED WIRE RED/ BLU WIRE RED/BLK WIRE RED/BLU WIRE RED/GRY WIRE RED/YEL WIRE RELAY ENERGIZED RF WHL SPD RR WHL SPD LR WHL SPD LF WHL SPD LF WHL SPD RIGHT REAR BRAKE PAD WEAR SENSOR (FRONT OF RIGHT REAR WHEEL) RIGHT REAR WHEEL SPEED SENSOR (BEHIND RIGHT REAR WHEEL) RR BRK PAD RR WHL SPD RR WHL SPP SEN GROUND STEERING COLUMN SWITCH CLUSTER STEERING GEAR (W/ ACTIVE STEERING) TELEPHONE TRANSCEIVER (CENTER OF REAR COMPT) TERMINAL 15 COND WEL SPD PT CAN HIGH GROUND TERMINAL 30 VIO/YEL WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

3.0L TWIN TURBO DIESEL ACTIVE STEERING (IF EQUIPPED) (BEHIND LEFT FRONT WHEEL) BLK/RED/WHT WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/BRN/YEL WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT/YEL WIRE BRAKE FLUID LEVEL SWITCH (LEFT REAR OF ENGINE COMPT) BRAKE LIGHT SWITCH (UNDER LEFT SIDE OF DASH) BRK FLD LVL BRK LIGHT LF BRK PAD BRN WIRE BRN/BLK WIRE BRN/GRN/YEL WIRE BRN/RED WIRE CAR ACCESS SYSTEM (UNDER LEFT SIDE OF DASH) CC/M-ASK COMPUTER DATA LINES SYSTEM COND WHL SPD F-CAN-LOW DSC SENS DME CONTROL MODULE DSC SENSOR (LEFT FRONT FOOTWELL) DSC SENSOR 2 (W/ ACTIVE STEERING) (UNDER DRIVER'S SEAT) DYNAMIC STABILITY CONTROL (DSC) (LEFT REAR OF ENGINE COMPT) EDC ELECTRONIC DAMPER CONTROL EXCEPT 3.0L TWIN TURBO DIESEL F-CAN HIGH RF WHL OUT FUSE GRN/RED WIRE HAZARD WARNING SWITCH HOT AT ALL TIMES JUNCTION BOX (UNDER RIGHT SIDE OF DASH) JUNCTION BOX ELECTRONICS LEFT FRONT BRAKE PAD WEAR SENSOR (BEHIND LEFT FRONT WHEEL) LEFT FRONT WHEEL SPEED SENSOR (FRONT OF LEFT FRONT WHEEL) LEFT REAR WHEEL SPEED SENSOR (BEHIND LEFT REAR WHEEL) LF WHL OUT PT CAN LOW GROUND LF WHL SPD LF WHL SPD GROUND LR WHL SPD LR WHL SPD PARKING BRK DSC SENS RR BRK PAD NCA WIRE PARKING BRAKE WARNING SWITCH (UNDER CENTER CONSOLE) RED WIRE RED/BLU WIRE RED/GRY WIRE RED/YEL WIRE RELAY ENERGIZED RIGHT FRONT WHEEL SPEED SENSOR (FRONT OF RIGHT FRONT WHEEL) RIGHT REAR BRAKE PAD WEAR SENSOR (FRONT OF RIGHT REAR WHEEL) RIGHT REAR WHEEL SPEED SENSOR (BEHIND RIGHT REAR WHEEL) RR BRK PAD RR WHL OUT PT CAN LOW PT CAN HIGH RR WHL OUT RF BRK PAD RR WHL SPD RR WHL SPD STEERING COLUMN SWITCH CLUSTER STEERING GEAR (W/ ACTIVE STEERING) TELEPHONE TRANSCEIVER (CENTER OF REAR COMPT) TERMINAL 15 PT CAN HIGH TERMINAL 30 RF WHL SPD RF WHL SPD TURBO DIESEL) (RIGHT REAR OF ENGINE COMPT) VIO/YEL WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

18 19 K CAN L K CAN H 2 1 3 2 F CAN H F CAN L 2 1 F CAN H F CAN L 4 3 K CAN L K CAN H 5 6 3 9 8 F CAN H F CAN L WAKE-UP PT CAN H PT CAN L 5 6 5 6 K CAN L K CAN H 5 6 K CAN H K CAN L 6 7 K CAN L K CAN H 9 11 K CAN L K CAN H ACTIVE STEERING (IF EQUIPPED) (BEHIND LEFT FRONT WHEEL) BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE CAR ACCESS SYSTEM (UNDER LEFT SIDE OF DASH) CAR INFORMATION COMPUTER CIC CAR INFORMATION COMPUTER CIC (W/ CIC) CENTRAL INFORMATION DISPLAY COMBOX DSC SENSOR (LEFT FRONT FOOTWELL) DSC SENSOR 2 (W/ ALL ACTIVE FRONT STEERING) (UNDER DRIVER'S SEAT) EXCEPT CONVERTIBLE FUSE 74 GRN ORG/ WIRE GRN WIRE GRN/RED WIRE HEATING/AIR CONDITIONING SYSTEM (CENTER OF DASH, ABOVE RADIO) HOT AT ALL TIMES INSTRUMENT CLUSTER CONTROL UNIT JUNCTION BOX (UNDER RIGHT SIDE OF DASH) JUNCTION BOX ELECTRONICS K CAN H K CAN L K CAN L K CAN H LEFT FRONT SEAT MODULE MULTIPLE RESTRAINT SYSTEM CONTROL UNIT (REAR OF CENTER CONSOLE) NCA WIRE OBDII SOCKET (UNDER LEFT SIDE OF DASH) ORG/GRN WIRE RADIO (W/ RADIO) RED WIRE RED/YEL WIRE SIREN W/ TILT ALARM SENSOR W/O BOSCH W/ BOSCH WAKE-UP K CAN L K CAN H WHT/BLU WIRE WHT/YEL 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 DAYTIME SIDE/ DESIGN DIRECTION DRIVING 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 BRN/ 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) JUNCTION BOX ELECTRONICS LEFT FRONT DIRECTION INDICATOR LIGHT REPEATER LEFT LICENSE PLATE LIGHT MARKER ORG/GRN WIRE 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 SIDE/ DAYTIME DRIVING W/O LED TYPE W/ LED TYPE W/O DESIGN LIGHT W/ DESIGN LIGHT 2 3 4 YEL WIRE YEL/BLK WIRE YEL/VIO WIRE YEL/WHT 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 WIRE BRN/BLK WIRE BRN/BLU WIRE COMPUTER DATA LINES SYSTEM DIRECTION FOOTWELL MODULE (UNDER LEFT SIDE OF DASH) FUSE 31 FUSE 32 FUSE 41 FUSE 71 FUSE 81 FUSE 84 FUSE 86 GRN WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ BI-STABLE RELAY ENERGIZED HOT W/ TERMINAL JUNCTION BOX (UNDER RIGHT SIDE OF DASH) JUNCTION BOX ELECTRONICS LEFT FRONT DIRECTION INDICATOR LIGHT REPEATER LEFT LICENSE PLATE LIGHT ORG/GRN WIRE 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 YEL WIRE YEL/BLK WIRE YEL/VIO WIRE YEL/WHT WIRE

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

AUX-IN CONNECTION BLK WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE BRN/YEL WIRE CAR INFORMATION COMPUTER CIC CD CHANGER (LEFT SIDE OF REAR COMPT) CENTRAL INFORMATION DISPLAY COMPUTER DATA LINES SYSTEM DIGITAL TUNER AERIAL DIGITAL TUNER AERIAL 2 FUSE GRN WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ TERMINAL HOT W/ TERMINAL JUNCTION BOX (UNDER RIGHT SIDE OF DASH) JUNCTION BOX ELECTRONICS LEFT IN-BUMPER AERIAL LEFT MICROPHONE MOST-BUS CONNECTOR NCA WIRE ODBI SOCKET ORG/ WIRE ORG/GRN WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT IN-BUMPER AERIAL ROOF ANTENNA TCU/ULF/ ULF-SBX ULF-SBX-H/ COM BOX USB PORT VIDEO MODULE (LEFT SIDE OF REAR COMPT) W/O COM BOX W/ COM BOX WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/RED WIRE YEL WIRE YEL/BRN WIRE YEL/RED WIRE

1 2 (PIN 3-4 NOT USED) 5 6 7 8 (PIN 9-10 NOT USED) 11 12 1 2 3 4 5 6 (PIN 7-10 NOT USED) 11 12 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 (PIN 16-38 NOT USED) ANTI-LOCK BRAKES SYSTEM AUX-IN CONNECTOR BLK WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE BRN/ORG WIRE CCC/M-ASK CD CHANGER (LEFT SIDE OF REAR COMPT) CENTRAL INFORMATION DISPLAY COMPUTER DATA LINES SYSTEM FAN M-ASK/CCC 1 3 2 FUSE FUSE 18 FUSE 19 GRN WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT AT ALL TIMES HOT W/ TERMINAL HOT W/ TERMINAL JUNCTION BOX (UNDER RIGHT SIDE OF DASH) JUNCTION BOX ELECTRONICS LEFT IN-BUMPER TV AERIAL LEFT MICROPHONE MOST-BUS CONNECTOR NCA WIRE ORG/ WIRE ORG/GRN WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RIGHT IN-BUMPER TV AERIAL ROOF ANTENNA SAT SATELLITE RECEIVER (LEFT SIDE OF REAR COMPT) SDARS AERIAL TCU/ULF/ ULF-SBX/ ULF-SBX-H VIDEO MODULE (LEFT SIDE OF REAR COMPT) W/ AUTOMATIC ENGINE START/STOP FUNCTION W/O AUTOMATIC ENGINE START/STOP FUNCTION WHT WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/RED WIRE

18 19 20 21 22 (PIN 23-26 NOT USED) 3 4 W/O COM BOX W/ COM BOX AUX-IN CONNECTION BLK WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/ORG WIRE CAR INFORMATION COMPUTER CIC CD CHANGER (LEFT SIDE OF REAR COMPT) CENTRAL INFORMATION DISPLAY COMPUTER DATA LINES SYSTEM DIGITAL TUNER AERIAL DIGITAL TUNER AERIAL 2 DUAL REMOTE CONTROL RECEIVER FUSE FUSE 18 FUSE 19 GRN WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ TERMINAL HOT W/ JUNCTION BOX (UNDER RIGHT SIDE OF DASH) JUNCTION BOX ELECTRONICS LEFT IN-BUMPER TV AERIAL LEFT MICROPHONE MOST-BUS CONNECTOR NCA WIRE ODBI SOCKET ORG/ WIRE ORG/GRN WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RELAY ENERGIZED RIGHT IN-BUMPER TV AERIAL ROOF AERIAL TCU/ULF-SBX ULF-SBX-H/ COM BOX USB PORT VIDEO MODULE (LEFT SIDE OF REAR COMPT) W/ AUTOMATIC ENGINE START-STOP FUNCTION W/O AUTOMATIC ENGINE START-STOP FUNCTION WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

BLK WIRE BLU WIRE BRN WIRE COUPE, SEDAN FUSE 101 FUSE 47 GRN WIRE HEATING/AIR CONDITIONING SYSTEM (CENTER OF DASH, ABOVE RADIO) HOT AT ALL TIMES JUNCTION BOX (UNDER RIGHT SIDE OF DASH) JUNCTION BOX ELECTRONICS NCA WIRE REAR FUSE HOLDER (RIGHT SIDE OF REAR COMPT) REAR WINDOW DEFOGGER REAR WINDOW DEFROSTER (GROUND) LOCKOUT CIRCUIT REAR WINDOW DEFROSTER (POSITIVE) LOCKOUT CIRCUIT REAR WINDOW HEATED RELAY RED WIRE WAGON WAVE TRAP WHT WIRE YEL WIRE