BMW 3 series E90/E91/E92/E93 facelift (2008-2013) Automatic a/c circuit

1 2 3 4 5 6 7 8 9 10 11 12 GND 1 2 3 4 5 6 7 8 9 10 11 12 GND CAN BUS SIG CAN BUS SIG A/C COMPRESSOR CONTROL VALVE AIR DISTRIBUTION MICRO SWITCH (CENTER OF DASH) AUXILIARY WATER PUMP (LEFT REAR OF ENGINE COMPT) BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLOWER MOTOR (BEHIND RIGHT SIDE OF DASH) BLOWER OUTPUT STAGE BLOWER SIG SENS GRD BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE CENTER CONSOLE SWITCH CENTER COMPUTER DATA LINES SYSTEM CONDENSATION SENSOR (CENTER OF WINDSHIELD) CONVERTIBLE EXCEPT CONVERTIBLE 3 4 COOLANT PRESSURE SENSOR (RIGHT FRONT OF ENGINE COMPT) ELECTRONICS JUNCTION BOX EVAPORATOR TEMPERATURE SENSOR (CENTER OF DASH) FOOTWELL TEMPERATURE SENSOR (CENTER OF DASH) FUSE FUSE 6 FUSE 77 GRN WIRE GRN/BLK WIRE GRN/RED WIRE HEATER HEATING/AIR CONDITIONING SYSTEM (CENTER OF DASH, ABOVE RADIO) HOT AT ALL TIMES JUNCTION BOX (UNDER RIGHT SIDE OF DASH) HOT W/ HOT W/ TERMINAL 15 15 RELAY ENERGIZED INDEPENDENT HEATING CIRCUIT MIXING AIR CONTROL SOLAR SENSOR (TOP CENTER OF DASH) NCA WIRE ORG/GRN WIRE REAR COMPARTMENT FRESH AIR GRILL RED WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RELAY ENERGIZED ROOF FUNCTION CONTROL CENTER SENS SPLY VENTILATION TEMPERATURE SENSOR (CENTER OF DASH) WATER VALVE (LEFT SIDE OF AUXILIARY WATER PUMP) WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/GRY WIRE YEL WIRE YEL/BRN WIRE YEL/RED WIRE

AIR DISTRIBUTION FLAP MOTOR (CENTER OF DASH, ABOVE RADIO) AUC SENSOR (RIGHT REAR OF ENGINE COMPT) BLK WIRE BLU WIRE BRN WIRE BRN/BLK WIRE DEFROSTER FLAP MOTOR (BEHIND RIGHT SIDE OF DASH) DIESEL EXCEPT DIESEL ELECTRIC AUXILIARY HEATER (3.0L TWIN TURBO DIESEL) (CENTER OF DASH) ELECTRIC FAN CUT OUT RELAY EXCEPT EXCEPT DIESEL DIESEL DIESEL DIESEL FOOTWELL FLAP MOTOR (CENTER OF DASH, ABOVE RADIO) FRESH AIR/ RECIRCULATED AIR FLAP MOTOR (BEHIND RIGHT SIDE OF DASH) FRONT MIXING FLAP MOTOR (LEFT SIDE OF DASH) GRN WIRE GRN/RED WIRE HOT AT ALL TIMES REAR FUSE HOLDER (RIGHT FUSE SIDE OF REAR COMPT) LEFT MIXED AIR FLAP MOTOR (CENTER OF DASH, ABOVE RADIO) MIXER FLAP MOTOR (CENTER OF DASH, ABOVE RADIO) RED WIRE RED/BLU WIRE RED/GRN WIRE RIGHT MIXED AIR FLAP MOTOR (CENTER OF DASH, ABOVE RADIO) WHT/GRN WIRE YEL WIRE YEL/BLK WIRE

1 14 7 8 19 20 CAN LOW CAN HI 3.0L TWIN TURBO 4 17 SENS SIG SENS GND BLK/BLU WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU/RED WIRE BRN WIRE BRN/ORG WIRE BRN/WHT WIRE BSD SIG CHAMBER E-BOX) CHARACTERISTIC MAP THERMOSTATE (EXCEPT DIESEL) (REAR OF ENGINE) COMPUTER DATA LINES DIESEL DIESEL E-BOX FAN E-BOX SIG ELEC FAN ELECTRIC COOLANT PUMP (3.0L, 3.0L TWIN TURBO) (REAR OF ENGINE) ELECTRIC FAN (FRONT OF ENGINE COMPT) ELECTRIC FAN 400 WATT ELECTRIC FAN 600 WATT 2 3 4 ENGINE COOLANT TEMPERATURE SENSOR (EXCEPT DIESEL) ENGINE ELECTRONICS FUSE CARRIER (RIGHT PLENUM EXCEPT 3.0L TWIN TURBO FUSE FUSE 04 FUSE 03 FUSE 07 FUSE 33 FUSE FUSE HOT AT ALL TIMES HOT AT ALL TIMES JUNCTION BOX (UNDER RIGHT SIDE OF DASH) FUSE HOT AT ALL TIMES REAR FUSE FUSE HOLDER HOT W/ DME RELAY ENERGIZED HOT W/ TERMINAL NCA WIRE ORG/ WIRE RADIATOR OUTLET TEMPERATURE SENSOR (3.0L TWIN TURBO) (RIGHT SIDE OF ENGINE) RADIATOR SHUTTER DRIVE UNIT (3.0L, 3.0L TWIN TURBO) RADIATOR SHUTTER SOLENOID RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SENS SIG SENS SIG SYSTEM VIO WIRE WHT WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE YEL/WHT WIRE