Mercedes-Benz S-class W221 (2005-2009) me-sfi (me) control unit (right rear of engine compt) 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

12 13 CAN-F L CAN-F H 41 54 CAN E H CAN E L AT RIGHT REAR OF TRUNK) BATTERY COUPLING RELAY BLK WIRE COMPUTER DATA LINES SYSTEM FRONT PREFUSE FUSE 1 GENERATOR GRN WIRE GRN/WHT WIRE INSTRUMENT CLUSTER ME-SFI (ME) CONTROL UNIT (RIGHT REAR OF ENGINE COMPT) ON-BOARD ELECTRICAL NETWORK LINE PYROFUSE ON-BOARD ELECTRICAL SYSTEM BATTERY RED WIRE STARTER BATTERY STARTING CIRCUIT VEHICLE POWER SUPPLY CONTROL UNIT YEL WIRE YEL/RED WIRE YEL/WHT 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 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

BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/PNK WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CHECK ENGINE MIL INDICATOR CIRCUIT COMPUTER DATA LINES SYSTEM CRANKSHAFT HALL SENSOR EV 3 EV 5 EV 1 EV 8 EV 2 FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 30 GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/WHT WIRE HOT AT ALL TIMES FRONT PREFUSE FUSE 6 HOT FILM MAF SENSOR (CENTER REAR OF ENGINE) INSTRUMENT CLUSTER LEFT INTAKE MANIFOLD TUMBLE FLAP POSITION SENSOR LEFT KNOCK SENSOR 2 (UNDER INTAKE MANIFOLD) ME-SFI (ME) CONTROL UNIT (RIGHT REAR OF ENGINE COMPT) PNK/BLK WIRE PNK/BLU WIRE PNK/BRN WIRE PNK/GRN WIRE PNK/GRY WIRE PNK/WHT WIRE PNK/YEL WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RELAY RIGHT INTAKE MANIFOLD TUMBLE FLAP POSITION SENSOR RIGHT KNOCK SENSOR 1 (UNDER INTAKE MANIFOLD) SIG THROTTLE VALVE ACTUATOR (ON THROTTLE BODY ASSEMBLY) UPSTREAM TWC (KAT) (LEFT REAR OF ENGINE COMPT) VIO WIRE VIO/GRN WIRE VIO/WHT WIRE VIO/YEL WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/PNK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/PNK WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/PNK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE DOWNSTREAM TWC (KAT) EV 4 EV 6 EV 7 GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/PNK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/ORG WIRE GRY/WHT WIRE INTAKE MANIFOLD TUMBLE FLAP SWITCHOVER VALVE ME-SFI (ME) CONTROL UNIT (RIGHT REAR OF ENGINE COMPT) NCA WIRE O S KW OUT OIL LEVEL SWITCH PNK/BLK WIRE PNK/BLU WIRE PNK/GRN WIRE PNK/GRY WIRE PNK/WHT WIRE PNK/YEL WIRE RED WIRE RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE STARTING/ CHARGING SYSTEM VIO WIRE VIO/BLK WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/PNK WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/PNK WIRE YEL/RED WIRE YEL/VIO WIRE

AAV ACTIVATED CHARCOAL FILTER SHUTOFF VALVE AIR AIR PUMP BLK/GRN WIRE BLU WIRE BLU/GRY WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN E L CAN C L CAN-E H CAN-C H EGS COMPUTER DATA LINES SYSTEM CRASH EKP ELECTRIC SUCTION FAN ENGINE, A/C W/ INTEGRATED CONTROL FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUEL PUMP (UNDER LEFT REAR OF VEHICLE) FUEL PUMP RELAY MODULE FUSE 118 GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY/PNK WIRE GRY/YEL WIRE HOT AT ALL TIMES ME-SFI (ME) CONTROL UNIT (RIGHT REAR OF ENGINE COMPT) NCA WIRE PURGE CONTROL VALVE (LEFT REAR OF ENGINE COMPT) PWG+ (-) REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SIG SUPPLEMENTAL RESTRAINTS SYSTEM VIO/GRN WIRE VIO/YEL WIRE YEL/RED WIRE