Automatic a/c circuit for Mercedes-Benz S-class W221 facelift (2009-2013)

AAC (KLA) CONTROL UNIT (CENTER DASH) BLK WIRE BLK/BRN WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/PNK WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM DATA FRONT CENTER AIR OUTLET POTENTIOMETER FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 23 FUSE 31 FUSE 50 FUSE 54 (LEFT REAR ENGINE COMPT) GRN WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE HOT AT ALL TIMES HOT W/ CHASSIS CIRCUIT 87 RELAY ENERGIZED HOT W/ ENGINE CIRCUIT 87 RELAY ENERGIZED LEFT SIDE AIR OUTLET POTENTIOMETER LIN BUS LIN GND LIN DATA LIN-BUS CAN-B H CAN-B L LIN-BUS LIN-BUS PNK 31 SIG WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PNK/GRY WIRE PNK/YEL WIRE REAR CENTER AIR OUTLET POTENTIOMETER RED WIRE RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE REFRIGERANT PRESSURE SENSOR (LEFT FRONT WHEELHOUSE) RIGHT REAR FOOTWELL RIGHT SIDE AIR OUTLET POTENTIOMETER VIO WIRE WHT/BLU WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE

41 54 COMPUTER CAN-E H CAN-E L DATA LINES SYSTEM A/C (KLA) 4-WAY SUN SENSOR A/C AIR RECIRCULATION UNIT BLOWER MOTOR AIR CONDITIONING CONNECTOR BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/PNK WIRE BLK/YEL WIRE BLOWER REGULATOR BLU WIRE BLU/GRN WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY (OR BLK/PNK) WIRE BRN/GRY WIRE BRN/PNK WIRE COOLANT TEMPERATURE SENSOR (5.5L: FRONT OF ENGINE) ENGINE CONTROLS SYSTEM GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE HEATED WINDSHIELD CONTROL UNIT (W/ SPECIAL PROTECTION) LEFT B-PILLAR AIR DISTRIBUTION ACTUATOR MOTOR (UNDER LEFT FRONT SEAT) LEFT REAR CENTER AIR OUTLET ACTUATOR MOTOR ME-SFI (ME) CONTROL UNIT (RIGHT REAR OF ENGINE COMPT) PNK WIRE RED WIRE RED/BLK WIRE RED/GRN WIRE REFRIGERANT COMPRESSOR RIGHT B-PILLAR AIR DISTRIBUTION ACTUATOR MOTOR (UNDER RIGHT FRONT SEAT) RIGHT REAR CENTER AIR OUTLET ACTUATOR MOTOR VEHICLE INTERIOR HUMIDITY/ TEMPERATURE SENSOR VIO WIRE W/ REAR A/C W/O REAR A/C WHT/BLU WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/WHT WIRE

1 2 3 4 HV + HV - INTERLOCK OUT INTERLOCK IN BATTERY MANAGEMENT SYSTEM CONTROL UNIT (RIGHT REAR BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE CAN-I H CAN-I L INTERLOCK IN INTERLOCK OUT COMPUTER DATA LINES SYSTEM DC/DC CONVERTER CONTROL MODULE (RIGHT FRONT WHEELHOUSE) ELECTRIC REFRIGERANT COMPRESSOR (LEFT FRONT ENGINE) ENGINE COMPT) ENGINE COOLANT CIRCULATION PUMP (RIGHT OF RADIATOR) FRESH AIR/ RECIRCULATED AIR FLAP ACTUATOR MOTOR (RIGHT SIDE OF HVAC UNIT) FUSE 1 GRN WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE HEATER BOOSTER CONNECTOR HIGH VOLTAGE FUSE BOX HOT AT ALL TIMES ENGINE COMPARTMENT FUSE 5 PREFUSE BOX (RIGHT REAR ENGINE COMPT) HOT AT ALL TIMES INTERIOR PREFUSE FUSE 7 BOX (RIGHT FRONT FOOTWELL) LEFT CENTER AIR FLAP ACTUATOR MOTOR (LEFT CENTER OF HVAC UNIT) LEFT DEFROSTER VENT FLAP ACTUATOR MOTOR (TOP LEFT SIDE OF HVAC UNIT) LEFT FOOTWELL FLAP ACTUATOR MOTOR (LOWER LEFT CENTER OF HVAC UNIT) LEFT SIDE OUTLET FLAP ACTUATOR MOTOR (TOP LEFT CENTER OF HVAC UNIT) LOWER LEFT BLENDING AIR FLAP ACTUATOR MOTOR (LOWER LEFT SIDE OF HVAC UNIT) LOWER RIGHT BLENDING AIR FLAP ACTUATOR MOTOR (LOWER RIGHT SIDE OF HVAC UNIT) NCA WIRE PNK WIRE PNK/BLU WIRE PNK/GRN WIRE PTC HEATER BOOSTER RED WIRE RED/BLK WIRE RED/GRN WIRE RIGHT CENTER AIR FLAP ACTUATOR MOTOR (RIGHT CENTER OF HVAC UNIT) RIGHT DEFROSTER VENT FLAP ACTUATOR MOTOR (TOP RIGHT SIDE OF HVAC UNIT) RIGHT FOOTWELL FLAP ACTUATOR MOTOR (LOWER RIGHT CENTER OF HVAC UNIT) RIGHT SIDE OUTLET FLAP ACTUATOR MOTOR (TOP RIGHT CENTER OF HVAC UNIT) UPPER LEFT BLENDING AIR FLAP ACTUATOR MOTOR UPPER RIGHT BLENDING AIR FLAP ACTUATOR MOTOR VIO WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE