Mercedes-Benz S-class W221 (2005-2009) front prefuse Wiring diagrams

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

1 12 6 2 8 7 31 CAN-B H CAN-B L 31 12 2 CAN-F L CAN-F H 15 16 CAN-B H CAN-B L BRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE COCKPIT SWITCH GROUP COMPUTER DATA LINES SYSTEM EXTERIOR LAMP SWITCH FRONT PREFUSE FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 6 GRY/RED WIRE GRY/YEL WIRE HCS (SRA) SWITCH HCS PUMP (RIGHT FRONT OF ENGINE COMPT) HOT AT ALL TIMES INSTRUMENT CLUSTER RED WIRE RED/GRY WIRE UPPER CONTROL PANEL MODULE YEL WIRE YEL/WHT WIRE

1 2 CAN-C L CAN-C H 27 31 41 54 HR 6 5 CAN-E L CAN-E H AT RIGHT REAR OF TRUNK) BATTERY COUPLING RELAY BLK WIRE BLU WIRE BLU/WHT WIRE CAN C L CAN C H CAN E H CAN E L COMPUTER DATA LINES SYSTEM EIS (EZS) CONTROL UNIT ELECTRIC CONTROL UNIT (VGS) ENGINE CIRCUIT 87 RELAY FRONT PREFUSE FRONT SAM CONTROL MODULE FUSE 21 FUSE 6 FUSE 9 GRN WIRE GRN/WHT WIRE GRY/YEL WIRE INTELLIGENT SERVO MODULE FOR DIRECT SELECT ME-SFI (ME) CONTROL UNIT RED WIRE RED/YEL WIRE SOLID STATE STARTER STARTER BATTERY STARTER CIRCUIT 15 RELAY STARTER CIRCUIT 50 RELAY VIO/WHT WIRE W/ FUSE, RELAY MODULE

10 11 8 CAN-E H CAN-E L 31 5 4 1 3 30 31 CAN-B L CAN-B H 6 7 8 FLAT WIRE FLAT WIRE FLAT WIRE 31 DATA 30 BLK WIRE BLK/BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L CAN C H CAN C L CIRCUIT COMBINATION SWITCH COMPUTER DATA LINES SYSTEM FLAT WIRE FRONT PREFUSE FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 126 FUSE 41 FUSE 42 FUSE 49 FUSE 57 FUSE 6 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT W/ BATTERY COUPLING RELAY ENERGIZED INSTRUMENT CLUSTER MASTER WIPER MOTOR MULTIFUNCTION DISPLAY 12 13 CAN-F L CAN-F H OVERHEAD CONTROL PANEL CONTROL MODULE (CENTER FRONT OF ROOF) RAIN/LIGHT SENSOR REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE SIG SLAVE WIPER MOTOR STEERING COLUMN MODULE (AT TOP OF STEERING COLUMN) WASHER NOZZLE HOSE HEATER WINDSHIELD WASHER FLUID LEVEL INDICATOR SWITCH (RIGHT FRONT OF ENGINE COMPT) WINDSHIELD WASHER FLUID PUMP (RIGHT FRONT OF ENGINE COMPT) WINDSHIELD WASHER SYSTEM SWITCH WIPE SWITCH WIPER PARK HEATER WIPER PARK HEATER RELAY YEL WIRE YEL/VIO WIRE YEL/WHT WIRE