Mercedes-Benz S-class W221 (2005-2009) cockpit switch group Wiring diagrams

1 2 CAN-C L CAN-C H COMPUTER DATA LINES SYSTEM 55 42 CAN-C L CAN-C H 6 12 4 1 CAN-B L CAN-B H 30 31 AUTOMATIC CHILD SEAT RECOGNITION AIRBAG OFF IND LAMP BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE CAN-F H CAN-F L CAN-H H CAN-H L 31 COCKPIT SWITCH GROUP COMAND COMAND DISPLAY DISPLAY SWIVEL SWIVEL LEFT RIGHT SWITCH SWITCH COMAND DISPLAY DIMMER COMPUTER DATA LINES LINES SYSTEM COMPUTER DATA LINES SYSTEM DISTRONIC (DTR) CONTROL UNIT (UNDER PLATE IN RIGHT FRONT FOOTWELL) DTR RADAR SENSOR DTR WARNING LAMP IND ELECTRIC CONTROL UNIT ESP LEVEL OFF ADJUSTMENT SWITCH SWITCH EXTERIOR LIGHTS SYSTEM INSTRUMENT CLUSTER SYSTEM FREELY PROGRAMMABLE BUTTON FRONT CENTRAL OPERATING UNIT FRONT SAM CONTROL FUSE 40 MODULE WITH FUSE, RELAY MODULE FUSE 66 GRN WIRE GRY WIRE GRY/RED WIRE GRY/YEL WIRE HAZARD WARNING SYSTEM BUTTON HOT AT ALL TIMES INSTRUMENT CLUSTER ME-SFI (ME) CONTROL MODULE (RIGHT REAR OF ENGINE COMPT) OUTPUT SPEED SENSOR PTS OFF SWITCH RED WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE SIG SWITCH, CONTROLS ILLUMINATION/ NIGHT VISION ASSIST DISPLAY DIMMER UPPER CONTROL PANEL CONTROL MODULE VIO WIRE VIO/WHT WIRE YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

11 10 CAN-E L CAN-E H 12 13 CAN-F L CAN-F H 2 4 5 10 7 9 SW 6 SW 4 CAN G L CAN G H SW 3 SW 1 6 12 2 8 7 CAN-B L CAN-B H ANALOG CLOCK BLU WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE COCKPIT SWITCH GROUP COMBINATION SWITCH COMPUTER DATA LINES SYSTEM ELECTRIC PARKING BRAKE CONTROL UNIT ELECTRIC PARKING BRAKE SWITCH EXTERIOR LAMP SWITCH FRONT CENTRAL OPERATING UNIT GRN WIRE GRN/BRN WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/RED WIRE GRY/YEL WIRE HAZARD WARNING SYSTEM BUTTON HEADLAMP FLASHER/ HIGH BEAM SWITCH INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM LEFT TURN IND LEFT, RIGHT TURN SIGNAL SWITCH LOW BEAM SWITCH RED WIRE RED/WHT WIRE RIGHT TURN IND SOUNDER- STEERING COLUMN MODULE (AT TOP OF STEERING COLUMN) UPPER CONTROL PANEL CONTROL MODULE VIO/BRN WIRE WINDSHIELD WASHER SYSTEM SWITCH WIPE SWITCH YEL WIRE YEL/BLK 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 3 4 5 6 7 8 9 10 11 12 31 31 FRB VL 30 HSK BEL CAN-B L 1 3 2 NIGHT VISION ASSIST BUTTON 2 4 5 10 7 9 SW 6 SW 4 CAN G L CAN G H SW 3 SW 1 AIR RIGHT BLOWER RECIRCULATION BUTTON BUTTON ANALOG CLOCK AUTOMATIC CHILD SEAT RECOGNITION AIRBAG OFF IND LAMP BLU WIRE BRAKE FLUID INDICATOR SWITCH (LEFT REAR OF ENGINE COMPT) BRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H COCKPIT SWITCH GROUP COMAND DISPLAY DIMMER COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DEFROST/ HEATED WINDSHIELD BUTTON ELECTRIC PARKING BRAKE CONTROL UNIT ELECTRIC PARKING BRAKE SWITCH ESP OFF SWITCH EXTERIOR LAMP SWITCH FRB VR 30 GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/RED WIRE GRY/YEL WIRE HEATED REAR WINDOW BUTTON INTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEM LEFT AUTOMATIC AIR CONDITIONING BUTTON LEFT BLOWER BUTTON LEFT COMAND DISPLAY SWIVEL SWITCH LEFT TEMPERATURE SELECTION BUTTON LEVEL ADJUSTMENT SWITCH NIGHT VISION ASSIST DISPLAY DIMMER SWITCH, CONTROLS ILLUMINATION OFF/ RESIDUAL HEAT BUTTON OVERHEAD CONTROL PANEL CIRCUIT PTS OFF SWITCH RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT AUTOMATIC AIR CONDITIONING BUTTON RIGHT COMAND DISPLAY SWIVEL SWITCH RIGHT TEMPERATURE SELECTION BUTTON SIG STH/ZUH/ ATA(EDW) RESIDUAL FUNCTION HEAT INDICATOR BUTTON UPPER CONTROL PANEL MODULE VIO/BRN WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BRN WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE CAN-B H CAN-B L CENTER LEFT FRONT PTS ULTRASONIC SENSOR CENTER RIGHT FRONT PTS ULTRASONIC SENSOR COCKPIT SWITCH GROUP COMPUTER DATA LINES SYSTEM DATA FRONT BUMPER LEFT INNER RADAR SENSOR FRONT BUMPER RIGHT INNER RADAR SENSOR FRONT BUMPER RIGHT OUTER RADAR SENSOR FRONT OUTER OUTER LEFT FRONT LEFT OUTER PTS ULTRASONIC RADAR SENSOR SENSOR FUSE 142 MODULE W/ FUSE, RELAY MODULE HOT AT ALL TIMES INNER LEFT FRONT PTS ULTRASONIC SENSOR INNER RIGHT FRONT PTS ULTRASONIC SENSOR OUTER RIGHT FRONT PTS ULTRASONIC SENSOR PTS CONTROL MODULE PTS OFF SWITCH REAR SAM CONTROL RED/BLK WIRE RED/WHT WIRE VIO WIRE VIO/WHT WIRE W/ DISTRONIC PLUS W/ PARKTRONIC SYSTEM WHT/RED WIRE WHT/YEL WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE