Mercedes-Benz S-class W221 facelift (2009-2013) aac (kla) control unit (center dash) Wiring diagrams

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

1 2 CAN B L CAN B H 14 13 CAN-B L CAN-B H 15 14 CAN-B L CAN-B H 16 15 CAN-B L CAN-B H 2 4 CAN-B L CAN-B H 26 25 CAN-B L CAN-B H 3 4 CAN-B L CAN-B H 6 12 CAN-B L CAN-B H 7 9 CAN-B L CAN-B H 9 25 CAN-B L CAN-B H AAC (KLA) CONTROL UNIT (CENTER DASH) BACKUP CAMERA CONTROL UNIT (IF EQUIPPED) BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE CENTRAL GATEWAY CONTROL MODULE (LEFT FRONT DS (FDS)) (LEFT FRONT OF TRUNK) EIS (EZS) CONTROL UNIT FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE INTERIOR CAN/COCKPIT VOLTAGE DISTRIBUTOR CONNECTOR KEYLESS GO CONTROL UNIT (IF EQUIPPED) LEFT FRONT DOOR CONTROL MODULE (IN LEFT FRONT DOOR) LEFT FRONT SEAT CONTROL MODULE LEFT INTERIOR CAN/FFS (RBA) VOLTAGE DISTRIBUTOR CONNECTOR LEFT REAR DOOR CONTROL MODULE (IN LEFT REAR DOOR) LEFT REAR MULTICONTOUR BACKREST CONTROL MODULE PNEUMATIC PUMP FOR DYANAMIC SEAT CONTROL (W/ DYNAMIC SEAT REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RIGHT REAR MULTICONTOUR BACKREST CONTROL MODULE UPPER CONTROL PANEL CONTROL MODULE UPPER FOOTWELL)

1 2 3 4 30 31 CAN-A L CAN-A H 15 16 CAN-B H CAN-B L 23 16 24 LIN BUS LIN BUS 41 54 CAN E H CAN E L 5 4 6 LIN-DATA LIN (-) LIN (+) AAC (KLA) CONTROL UNIT (CENTER DASH) BLK WIRE BLK/BLU (OR BLK/PNK) WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/ORG WIRE BLK/PNK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOLANT CIRCULATION PUMP ENGINE ENGINE CONTROLS SYSTEM FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR ENGINE COMPT) FUSE 108 FUSE 23 FUSE 5 COMPARTMENT PREFUSE BOX (RIGHT REAR ENGINE COMPT) GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/ORG WIRE HEATED WINDSHIELD CONTROL UNIT (W/ SPECIAL PROTECTION) HOT AT ALL TIMES HOT W/ ENGINE CIRCUIT 87 RELAY ENERGIZED LEFT B-PILLAR AIR DISTRIBUTION ACTUATOR MOTOR (UNDER LEFT FRONT SEAT) LEFT DUOVALVE LEFT REAR CENTER AIR OUTLET ACTUATOR MOTOR ME-SFI (ME) CONTROL UNIT (RIGHT REAR OF ENGINE COMPT) PNK WIRE PNK/GRY WIRE REAR A/C CONTROL MODULE REAR A/C ELECTRONIC BLOWER REGULATOR (IN REAR OF CENTER CONSOLE) REAR AUXILIARY HEATING SYSTEM SUPPLY UNIT REAR BLOWER MOTOR (IN REAR OF CENTER CONSOLE) REAR EVAPORATOR TEMPERATURE SENSOR (REAR OF CENTER CONSOLE) REAR REFRIGERANT SHUT-OFF VALVE (LEFT FRONT WHEELHOUSE) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RIGHT B-PILLAR AIR DISTRIBUTION ACTUATOR MOTOR (UNDER RIGHT FRONT SEAT) RIGHT DUOVALVE RIGHT REAR AIR CONDITIONING HEATER EXCHANGER TEMPERATURE SENSOR RIGHT REAR CENTER AIR OUTLET ACTUATOR MOTOR VIO WIRE W/ REAR WINDOW DEFROSTER W/O REAR WINDOW DEFROSTER YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/RED WIRE

1 2 CAN B L CAN B H 13 12 CAN-E L CAN-E H 16 15 CAN-B L CAN-B H 18 26 AUS TEMP - AUS TEMP + 26 25 CAN-B L CAN-B H 3 1 CAN-B H CAN-B L 3 4 CAN-B L CAN-B H AAC (KLA) CONTROL UNIT (CENTER DASH) BLK WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM EIS (EZS) CONTROL UNIT ESP CONTROL MODULE FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR ENGINE COMPT) FUSE 115 GRN WIRE GRN/WHT WIRE HEATED REAR WINDOW HEATED REAR WINDOW RELAY HOT AT ALL TIMES INTERIOR FUSE 3 PREFUSE BOX (RIGHT FRONT FOOTWELL) LEFT "C" PILLAR) LEFT ELECTRICALLY ADJUSTABLE, HEATED EXTERIOR MIRROR LEFT FRONT DOOR CONTROL MODULE (IN LEFT FRONT DOOR) MIRROR HEATER OUTSIDE TEMPERATURE DISPLAY TEMPERATURE SENSOR OVERHEAD CONTROL PANEL CONTROL MODULE (CENTER FRONT OF ROOF) REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (CENTER TRUNK) REAR WINDOW INTERFERENCE SUPPRESSION CAPACITOR RED WIRE RED/BLU WIRE RIGHT ELECTRICALLY ADJUSTABLE, HEATED EXTERIOR MIRROR RIGHT FRONT DOOR CONTROL MODULE (IN RIGHT FRONT DOOR)