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

1 14 CAN-L CAN-H 1 2 3 4 5 6 STEERING ADJUST SIG STEERING ADJUST SIG STEERING ADJUST SIG 6 5 SERVOTRONIC SERVOTRONIC ACTIVE STEERING (BEHIND LEFT FRONT WHEEL) BLK WIRE BLK/BRN WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE CAN-BUS CAN-BUS COMPUTER DATA LINES SYSTEM DME CONTROL UNIT ECO VALVE (UNDER STARTER) ECO VLV SIG SOL VLV ELECTRIC LOCK (UNDER VEHICLE) FUSE 49 SIDE OF DASH) JUNCTION BOX (UNDER RIGHT NCA WIRE RED WIRE RED/BRN WIRE RED/GRN WIRE RELAY ENERGIZED STEERING GEAR SUPPLY STEERING GND VIO/GRN WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/BRN WIRE

AIR BAG SENSORS AIR BAG SENSORS FLEXRAY BUS SIG FLEXRAY BUS SIG BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BRN/BLK WIRE BRN/WHT WIRE CENTER CONSOLE OPERATING UNIT COMPUTER DATA LINES SYSTEM DRV DYN CTRL SW SIG DRV DYN CTRL SW SIG DYNAMIC STABILITY CONTROL (DSC) (LEFT REAR OF ENGINE COMPT) FRONT POWER DISTRIBUTION BOX (RIGHT REAR OF ENGINE COMPT) FUNCTION LIGHTING FUSE 25 GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/RED WIRE GRN/YEL WIRE GROUND GROUND SPY LF LEVEL SEN SPY LR LEVEL SEN GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/WHT WIRE HOT W/ TERMINAL INTEGRATED CHASSIS MANAGEMENT (UNDER CENTER CONSOLE) LEFT FRONT LEVEL SENSOR LEFT REAR LEVEL SENSOR PNK/BLK WIRE PNK/BLU WIRE RED/YEL WIRE SIG LF LEVEL SEN SENSOR GROUND SIG LF LEVEL SEN SENSORS GROUND SIG,PARKING AID CTRL SIGNAL, DTC BTN WAKE UP SIG, TER 15 WHT WIRE YEL WIRE YEL/BLU WIRE

13 28 PT-CAN BUS SIG PT-CAN BUS SIG 17 35 BSD BUS SIG SPLY PUMP 2.0L TWIN 25 54 TEMP SENS TEMP SENS SIG 3.0L TWIN 46 37 SPLY MAP MAP THERMOSTAT ACCUMULATOR MANAGEMENT ELECTRONICS AUXILIARY WATER PUMP (LEFT REAR OF BLK/GRN WIRE BLK/GRY WIRE BLU WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE CHARACTERISTIC MAP THERMOSTAT (REAR OF ENGINE) COMPUTER DATA LINES SYSTEM CUT-OUT RELAY ELEC FAN ELECTRIC COOLANT PUMP (REAR OF ENGINE) ELECTRIC COOLANT PUMP 2 ELECTRIC FAN (FRONT OF ENGINE COMPT) ELECTRIC FAN CUT OUT RELAY ELECTRIC FAN CUT OUT RELAY (RIGHT PLENUM CHAMBER E-BOX) ELECTRICAL MACHINE ELECTRONICS (UNDER LEFT FRONT ENGINE COMPT) ENGINE CONTROLS SYSTEM FAN 400, 600 WATT 2.0L TURBO EXCEPT SULEV 2.0L TURBO SULEV 5 6 FRONT REFRIGERANT SHUT-OFF VALVE FUSE FUSE 29 FUSE 33 GRN WIRE HOT AT ALL TIMES HOT AT ALL TIMES POWER DISTRIBUTION BOX FUSE HOT W/ OF VEHICLE) RED WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RED/YEL WIRE REFRIGERANT SHUT-OFF VALVE (HIGH VOLTAGE BATTERY) RELAY ENERGIZED RELAY ENERGIZED FRONT POWER DISTRIBUTION BOX (RIGHT REAR OF ENGINE COMPT) SHUTOFF VALVE WHT WIRE WHT/BLU WIRE WHT/BRN 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

3.0L 3.0L TURBO, 3.0L TWIN TURBO ACCELERATOR PEDAL MODULE (PART OF ACCELERATOR PEDAL) ACTIVE CRUISE CONTROL (SEDAN) (CENTER OF FRONT BUMPER) ANTI-THEFT SYSTEM BLU/BLK WIRE BLU/BRN WIRE BLU/RED WIRE BRAKE LIGHT SWITCH (UNDER LEFT SIDE OF DASH) BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/YEL WIRE CLUTCH SWITCH MODULE (M/T) (UNDER LEFT SIDE OF DASH) CLUTCH SWITCH MODULE (UNDER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM EXCEPT SEDAN FRONT POWER DISTRIBUTION BOX FUSE 23 FUSE 45 (RIGHT REAR OF ENGINE COMPT) GRN WIRE GRY/GRN WIRE GRY/WHT WIRE RED WIRE RED/GRN WIRE RELAY ENERGIZED SEDAN VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/YEL WIRE YEL WIRE YEL/GRN WIRE

1 2 3 4 5 6 7 8 9 10 11 12 DATA LINE DATA LINE DATA LINE AIR CONDITIONING SYSTEM ANTI-THEFT SYSTEM AIR CONDITIONING SYSTEM INTERIOR LIGHTS SYSTEM ANTI-THEFT SYSTEM ANTI-THEFT SYSTEM HORNS SYSTEM COMPUTER DATA LINES SYSTEM ANTI-THEFT SYSTEM BISTABLE RELAY BLK WIRE BLK/BRN WIRE BLK/RED WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA LINE DATA LINE LOCTR LMP DOOR LOCKS SYSTEM DOOR LOCKS, INTERIOR LIGHTS SYSTEMS DOOR LOCKS, TRUNK, TAILGATE, FUEL DOORS SYSTEMS ANTI-THEFT SYSTEM EXTERIOR LIGHTS, INTERIOR LIGHTS SYSTEMS FRONT ELECTRONIC MODULE (FEM) (RIGHT END OF DASH) GND SIGNAL SHIFT GROUND GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE INSTRUMENT CLUSTER SYSTEM LIN BUS SIG GROUND START SIG LED ACT START STOP GROUND LED ACTION LIN BUS SIG OUT SIDE SIG OUT SIDE SIG LOCATOR LIGHT NAVIGATION SYSTEM ORG/GRN WIRE REAR FUSE HOLDER (RIGHT SIDE OF REAR COMPT) RED WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RELAY SOUND SYSTEMS START STOP GROUND POSITION SW GROUND AERIL SIG AERIL SIG STARTING/CHARGING, ANTI-THEFT SYSTEMS TERMINAL VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/RED WIRE

ADJUSTING DRIVE BLU WIRE BLU/YEL WIRE BRN WIRE CAN L COMPUTER DATA LINES SYSTEM DRIVER EXTERIOR MIRROR DRIVER'S DOOR SWITCH BLOCK FRONT ELECTRONIC MODULE (RIGHT END OF DASH) FRONT PASSENGER EXTERIOR MIRROR FRONT POWER DISTRIBUTION BOX (RIGHT REAR OF ENGINE COMPT) GRY WIRE HOT AT ALL TIMES FUSE BOX FUSE 504 HOT W/ LIN BUS SIG MIRROR HEATING RED WIRE RED/GRY WIRE RED/YEL WIRE RELAY ENERGIZED FUSE 22 SUPPLY WHT/BRN WIRE YEL WIRE

42 2 LIN BUS SIG MIRR HEATER 45 46 BUS SIG BUS SIG BLU WIRE BLU/YEL WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER EXTERIOR MIRROR DRIVER'S DOOR SWITCH BLOCK FRONT ELECTRONIC MODULE (RIGHT END OF DASH) FRONT PASSENGER EXTERIOR MIRROR FRONT POWER DISTRIBUTION BOX (RIGHT REAR OF ENGINE COMPT) FUSE 22 FUSE 504 FUSE BOX GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT W/ TERMINAL MIRR HEATER MIRROR HEATING NCA WIRE POWER DISTRIBUTION SYSTEM RED WIRE RED/GRY WIRE SUPPLY

22 23 K-CAN BUS SIG K-CAN BUS SIG BRN WIRE COMPUTER DATA LINES SYSTEM FUSE 80 GRN WIRE HEATING/AIR CONDITIONING SYSTEM (CENTER OF DASH, ABOVE RADIO) HOT AT ALL TIMES NCA WIRE ORG/GRN WIRE REAR ELECTRONIC MODULE REAR WINDOW DEFOGGER REAR WINDOW DEFOGGER REJECTOR CIRCUIT REAR WINDOW DEFOGGER REJECTOR CIRCUIT 2 REAR WINDOW DEFOGGER RELAY RED WIRE YEL WIRE

BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/RED WIRE BOOT LID CONTACT BRAKE LIGHT BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CENTRAL LOC DRIVE BOOT LID CONTACT BOOT LID CONTACT COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DOOR LOCKS, TRUNK, TAILGATE, FUEL DOORS SYSTEMS EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM FUL LEV SENS SIG LEV SENS SIG 2 TERMINAL 30 FUSE 161 FUSE 500 FUSE BOX GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND GROUND HAZ WRNG LIGHT SW GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HALL SENSOR HALL SENSOR INDICATOR LAMP BRAKE LIGHT HOT AT ALL TIMES IND LAMP INSTRUMENT CLUSTER SYSTEM INSTRUMENT CLUSTER SYSTEM EXTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM K-CAN BUS SIG K-CAN BUS SIG K-CAN BUS SIG K-CAN BUS SIG K-CAN BUS SIG K-CAN BUS SIG K-CAN BUS SIG LICENCE PLATE LIGHT LICENCE PLATE LIGHT REVERSING LIGHT LUGG COMPT LIGHT BRAKE LIGHT ACT NAVIGATION SYSTEM POWER DISTRIBUTION SYSTEM POWER WINDOWS SYSTEM REAR ELECTRONIC MODULE (REM) (RIGHT REAR OF LUGGAGE COMPT) REAR FUSE HOLDER (RIGHT SIDE OF REAR COMPT) RED WIRE RED/WHT WIRE RED/YEL WIRE REVERSING LIGHT TAIL LIGHT RT DYNAMIC BRK SUPPYLY TAIL LIGHT BRK LIGHT SW SIG TAIL LIGHT LT DYNAMIC BRK TAIL LIGHT TERMINAL 15 TRUNK, TAILGATE, FUEL DOORS SYSTEM WHT/GRN WIRE WHT/YEL WIRE WINDOW DEFOGGER YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE