Mercedes-Benz S-class W221 (2005-2009) engine controls system Wiring diagrams

41 54 COMPUTER CAN-E H CAN-E L DATA LINES A/C COMPRESSOR A/C RECIRCULATION UNIT BLOWER MOTOR A/C SUN SENSOR AIR CONDITIONING CONNECTOR BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/PNK WIRE BLK/YEL WIRE BLOWER REGULATOR BLU WIRE BLU/GRN WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/PNK WIRE COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR (FRONT OF ENGINE) ELECTRIC SUCTION FAN ENGINE, A/C W/ INTEGRATED CONTROL ENGINE CONTROLS SYSTEM GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE HEATED WINDSHIELD CONTROL MODULE LEFT "B" PILLAR AIR DISTRIBUTION ACTUATOR MOTOR LEFT REAR CENTER VENT FLAP ACTUATOR MOTOR ME-SFI (ME) CONTROL UNIT (RIGHT REAR OF ENGINE COMPT) PNK WIRE RED WIRE RED/BLK WIRE RED/GRN WIRE RIGHT "B" PILLAR AIR DISTRIBUTION ACTUATOR MOTOR RIGHT REAR CENTER VENT FLAP ACTUATOR MOTOR SYSTEM EGS VIO WIRE W/ SPECIAL PROTECTION W/O SPECIAL PROTECTION YEL WIRE YEL/BLU WIRE YEL/GRN WIRE

15 16 CAN-B H CAN-B L 41 54 CAN E H CAN E L BLK/BRN WIRE BLK/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOLANT CIRCULATION PUMP (IN LEFT REAR OF ENGINE COMPT) COOLANT TEMPERATURE SENSOR (TOP FRONT OF ENGINE) ELECTRIC SUCTION FAN ENGINE, A/C W/ INTEGRATED CONTROL ENGINE CONTROLS SYSTEM FRONT PREFUSE FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 4 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES ME-SFI (ME) CONTROL UNIT (RIGHT REAR OF ENGINE COMPT) RED WIRE RED/BLK WIRE RED/GRN WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 MLS+ GND MLS- AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM COMPUTER DATA LINES SYSTEM AIR CONDITIONING SYSTEM INSTRUMENT CLUSTER SYSTEM ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/GRN WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/PNK WIRE BRN/WHT WIRE BRN/YEL WIRE CAN C L CAN C H CAN E H CAN E L CAN-B H CAN-B L COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM AIR CONDITIONING SYSTEM DATA ELECTRONIC SUSPENSION SYSTEM ELECTRONIC SUSPENSION SYSTEM SHIFT INTERLOCK SYSTEM ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM REAR SAM CONTROL MODULE CIRCUIT ENGINE CONTROLS SYSTEM STARTING/CHARGING SYSTEM ENGINE CONTROLS SYSTEM TRANSMISSIONS SYSTEM FRONT PREFUSE FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE FUSE 6 GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT AT ALL TIMES VEHICLE FUSE POWER SUPPLY CONTROL UNIT LEFT FRONT DOOR CONTROL MODULE (IN LEFT FRONT DOOR) LIN BUS LIN-BUS LIN-BUS CAN-B H CAN-B L MEMORY SYSTEMS MLS+ H+ MLS- H+ PNK WIRE PNK/BLU WIRE PNK/RED WIRE POWER DISTRIBUTION SYSTEM REAR SAM CONTROL MODULE CIRCUIT RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SEATS SYSTEM SEATS SYSTEM ELECTRONIC POWER STEERING SYSTEM SEATS SYSTEM STARTING/CHARGING SYSTEM TRANSMISSIONS SYSTEM VIO WIRE VIO/WHT WIRE WHT WIRE WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM AIR CONDITIONING SYSTEM WIPER/WASHER SYSTEM YEL WIRE YEL/GRY WIRE YEL/RED WIRE YEL/WHT WIRE

1 2 3 4 5 6 7 8 9 10 57 R 1 2 3 4 5 6 7 8 9 10 CAN-E H 5 6 7 8 9 10 57 L AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM ELECTRONIC POWER STEERING SYSTEM AUSTEMP+ BLK WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/WHT WIRE BRN/YEL WIRE CAN E L COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DATA ELECTRONIC POWER STEERING SYSTEM ENGINE CONTROLS SYSTEM FRONT PREFUSE FRONT SAM CONTROL MODULE W/ FUSE, FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM HORNS SYSTEM HOT AT ALL TIMES INSTRUMENT CLUSTER SYSTEM INSTRUMENT CLUSTER SYSTEM WIPER/WASHER SYSTEM INSTRUMENT CLUSTER SYSTEM NAVIGATION SYSTEM PNK/BLU WIRE PNK/GRN WIRE PNK/RED WIRE POWER DISTRIBUTION SYSTEM RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RELAY MODULE SIG GND GND GND AUSTEMP- SIG SIG SPIEGEL R SUPPLEMENTAL RESTRAINTS SYSTEM VIO WIRE WARNING SYSTEMS WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM ELECTRONIC SUSPENSION SYSTEM WIPER/WASHER SYSTEM INSTRUMENT CLUSTER SYSTEM WARNING SYSTEMS YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE

1 2 3 4 30 31 CAN-A L CAN-A H 15 16 CAN-B H CAN-B L 41 54 CAN E H CAN E L 5 4 6 LIN-DATA LIN (-) LIN (+) AAC (KLA) CONTROL UNIT 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 ELECTRIC SUCTION FAN ENGINE, A/C W/ INTEGRATED CONTROL ENGINE CONTROLS SYSTEM FRONT PREFUSE FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 108 FUSE 4 GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/ORG WIRE HEATED WINDSHIELD CONTROL MODULE (W/ SPECIAL PROTECTION) HOT AT ALL TIMES HOT AT ALL TIMES LEFT INSTRUMENT PANEL FUSE BOX FUSE 109 LEFT "B" PILLAR AIR DISTRIBUTION ACTUATOR MOTOR LEFT DUOVALVE LEFT REAR CENTER VENT FLAP 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 HEATER SUPPLY UNIT REAR BLOWER MOTOR (IN REAR OF CENTER CONSOLE) REAR EVAPORATOR TEMPERATURE SENSOR (REAR OF CENTER CONSOLE) REAR REFRIGERANT SHUT-OFF VALVE (AT LEFT FRONT WHEELHOUSE) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RIGHT "B" PILLAR AIR DISTRIBUTION ACTUATOR MOTOR RIGHT DUOVALVE RIGHT REAR CENTER VENT FLAP ACTUATOR MOTOR RIGHT REAR HEATER EXCHANGER TEMPERATURE SENSOR VIO WIRE W/ REAR WINDOW DEFROSTER W/O REAR WINDOW DEFROSTER YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 MLS+ GND MLS- AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM COMPUTER DATA LINES SYSTEM AIR CONDITIONING SYSTEM INSTRUMENT CLUSTER SYSTEM ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/GRN WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/PNK WIRE BRN/WHT WIRE BRN/YEL WIRE CAN C L CAN C H CAN E H CAN E L CAN-B H CAN-B L COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM AIR CONDITIONING SYSTEM DATA ELECTRONIC SUSPENSION SYSTEM ELECTRONIC SUSPENSION SYSTEM SHIFT INTERLOCK SYSTEM ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM REAR SAM CONTROL MODULE CIRCUIT ENGINE CONTROLS SYSTEM STARTING/CHARGING SYSTEM ENGINE CONTROLS SYSTEM TRANSMISSIONS SYSTEM FRONT PREFUSE FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE FUSE 6 GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT AT ALL TIMES VEHICLE FUSE POWER SUPPLY CONTROL UNIT LEFT FRONT DOOR CONTROL MODULE (IN LEFT FRONT DOOR) LIN BUS LIN-BUS LIN-BUS CAN-B H CAN-B L MLS+ H+ MLS- H+ PNK WIRE PNK/BLU WIRE PNK/RED WIRE POWER DISTRIBUTION SYSTEM REAR SAM CONTROL MODULE CIRCUIT RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SEATS SYSTEM SEATS SYSTEM ELECTRONIC POWER STEERING SYSTEM SEATS SYSTEM STARTING/CHARGING SYSTEM TRANSMISSIONS SYSTEM VIO WIRE VIO/WHT WIRE WHT WIRE WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM AIR CONDITIONING SYSTEM WIPER/WASHER SYSTEM YEL WIRE YEL/GRY WIRE YEL/RED WIRE YEL/WHT WIRE