Mercedes-Benz S-class W221 facelift (2009-2013) 12 13 can-f l can-f h Wiring diagrams

1 2 3 4 CAN-B L CAN-B H 31 30 12 13 CAN-F L CAN-F H 15 14 13 12 15 CAN-B L CAN-B H 42 55 26 CAN-C H CAN-C L 6 12 CAN-B L CAN-B H 6 5 4 DATA 9 22 25 21 HD-AS ALARM SIREN W/AUXILIARY BATTERY (LEFT FRONT WHEELHOUSE) ATA (EDW) FUNCTION INDICATOR BLU WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER DOOR INFRARED SENSOR ENGINE HOOD OPEN/ CLOSED SWITCH (ATA) FUEL FILLER FLAP MOTOR FUSE 29 FUSE 80 GRN WIRE GRY WIRE GRY/BLU WIRE HEADLIGHTS SYSTEM HORNS SYSTEM HOT AT ALL TIMES HYBRID ENGINE HOOD CONTACT SWITCH (3.5L) INSTRUMENT CLUSTER LEFT FRONT DOOR CONTROL MODULE (IN LEFT FRONT DOOR) LEFT REAR FOOTWELL ME-SFI (ME) CONTROL UNIT (RIGHT REAR OF ENGINE COMPT) NCA WIRE PNK WIRE PNK/RED WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (CENTER TRUNK) RED WIRE RED/BLK WIRE RED/BLU WIRE SPIEGEL TRUNK LID CONTACT SWITCH TRUNK LID EMERGENCY RELEASE SWITCH TRUNK LID EXTERNAL OPERATION SWITCH UPPER CONTROL PANEL CONTROL MODULE VIO WIRE W/ HYBRID DERIVE WHT WIRE YEL WIRE YEL/WHT WIRE

12 13 CAN-F L CAN-F H 41 54 CAN E H CAN E L BATTERY SENSOR (RIGHT FRONT OF TRUNK) BD LIN BLK WIRE BLU/WHT WIRE CAN-G H CAN-G L COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT PREFUSE BOX FUSE 2 (RIGHT REAR ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR ENGINE COMPT) GENERATOR GRN WIRE GRN/WHT WIRE INSTRUMENT CLUSTER INTERIOR PREFUSE BOX (RIGHT FRONT FOOTWELL) LIN ME-SFI (ME) CONTROL UNIT (RIGHT REAR OF ENGINE COMPT) MULTI-FUNCTION DISPLAY ON-BOARD ELECTRICAL SYSTEM BATTERY RED WIRE STARTING CIRCUIT YEL WIRE YEL/WHT WIRE

1 2 CAN B L CAN B H 11 10 CAN-E L CAN-E H 12 13 CAN-F L CAN-F H 6 12 2 CAN-B L CAN-B H ADJUSTABLE, HEATED OUTSIDE MIRROR ANALOG CLOCK AUDIBLE TURN SIGNAL INDICATOR BLK WIRE BLU WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE COCKPIT SWITCH GROUP COMBINATION SWITCH COMPUTER DATA LINES SYSTEM FOG LAMP INDICATOR FRONT CENTRAL OPERATING UNIT GRN WIRE GRN/WHT WIRE GRY/RED WIRE GRY/YEL WIRE HAZARD WARNING SYSTEM BUTTON HCS (SRA) SWITCH HEADLAMP FLASHER/ HIGH BEAM SWITCH HOT AT ALL TIMES INTERIOR PREFUSE BOX FUSE INSTRUMENT CLUSTER LEFT FRONT DOOR CONTROL MODULE (IN LEFT FRONT DOOR) LEFT TURN SIGNAL IND LEFT, RIGHT TURN SIGNAL SWITCH NIGHT VISION ASSIST BUTTON OUTSIDE MIRROR AMBIENT LAMP OUTSIDE MIRROR AMBIENT LAMP LEFT ELECTRICALLY ADJUSTABLE, HEATED OUTSIDE MIRROR OUTSIDE MIRROR TURN SIGNAL LAMP OUTSIDE MIRROR TURN SIGNAL LAMP RIGHT ELECTRICALLY REAR FOG LAMP INDICATOR RED WIRE RED/WHT WIRE RIGHT FRONT DOOR CONTROL MODULE (IN RIGHT FRONT DOOR) RIGHT TURN SIGNAL IND ROTARY LIGHT SWITCH STEERING COLUMN MODULE (TOP OF STEERING COLUMN) UPPER CONTROL PANEL CONTROL MODULE YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

1 12 6 2 8 7 31 CAN-B H CAN-B L 31 12 13 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 SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR ENGINE COMPT) FUSE 6 PREFUSE BOX (RIGHT REAR ENGINE COMPT) GRY/RED WIRE GRY/YEL WIRE HCS (SRA) SWITCH HCS PUMP (LEFT FRONT WHEELWELL) HOT AT ALL TIMES INSTRUMENT CLUSTER LIN BUS RED WIRE RED/GRY WIRE UPPER CONTROL PANEL CONTROL UNIT YEL WIRE YEL/WHT WIRE

1 2 3 CAN-C L CAN-C H 31 1 2 3 CAN-I L CAN-I H 31 1 2 CAN-C L CAN-C H 1 2 CAN-F L CAN-F H 1 2 CAN-H L CAN-H H 1 2 CAN-I L CAN-I H 10 20 CAN-I L CAN-I H 10 4 CAN-I L CAN-I H 11 1 CAN-F L CAN-F H 11 10 CAN-H L CAN-H H 12 11 CAN-F L CAN-F H 12 13 CAN-F L CAN-F H 19 18 CAN-H L CAN-H H 2 1 CAN-C L CAN-C H 2 3 CAN-H L CAN-H H 4 3 CA CAN-I L CAN-I H 55 42 53 40 CAN-C L CAN-C H CAN-I L CAN-I H 6 3 CAN-H L CAN-H H 9 8 CA CAN-I L CAN-I H BATTERY MANAGEMENT SYSTEM CONTROL UNIT BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CENTRAL CAN VOLTAGE DISTRIBUTOR CONNECTOR CENTRAL GATEWAY CONTROL MODULE (LEFT FRONT COMAND CONTROL UNIT DC/DC CONVERTER CONTROL MODULE (RIGHT FRONT DIRECT SELECT INTELLIGENT SERVO MODULE FOR (IF EQUIPPED) (TRANSMISSION HOUSING) DRIVETRAIN CAN VOLTAGE DISTRIBUTOR CONNECTOR DTR CONTROL UNIT (IF EQUIPPED) (UNDER PLATE IN RIGHT ELECTRIC CONTROL UNIT (VGS) ELECTRIC REFRIGERANT COMPRESSOR ENGINE COMPT) ESP CONTROL MODULE (5.5L) REGENERATIVE BRAKING HYBRID CAN VOLTAGE DISTRIBUTOR CONNECTOR (3.5L HYBRID) INSTRUMENT CLUSTER ME-SFI (ME) CONTROL UNIT (RIGHT REAR OF POWER ELECTRONICS CONTROL UNIT (RIGHT SIDE UNDERCARRIAGE) RADAR SENSOR SYSTEM CONTROL UNIT (W/ DISTANCE PLUS) SYSTEM CONTROL UNIT (3.5L HYBRID) (RIGHT FRONT ENGINE COMPT) UPPER FOOTWELL) VEHICLE DYNAMICS CAN VOLTAGE DISTRIBUTOR CONNECTOR VIO WIRE VIO/WHT WIRE WHEELHOUSE) YAW RATE, LATERAL, LONGITUDINAL ACCELERATION SENSOR YEL WIRE YEL/WHT WIRE

10 11 8 CAN-E H CAN-E L 31 12 13 CAN-F L CAN-F H 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/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 COMPT) COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT PREFUSE BOX (RIGHT REAR ENGINE COMPT) FLAT WIRE FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR ENGINE COMPT) FUSE 126 FUSE 41 FUSE 42 FUSE 49 FUSE 57 FUSE 6 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER MASTER WIPER MOTOR MULTIFUNCTION DISPLAY OVERHEAD CONTROL PANEL CONTROL MODULE (CENTER FRONT OF ROOF) RAIN/LIGHT SENSOR (FRONT CENTER OF ROOF) REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (CENTER RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE SIG SLAVE WIPER MOTOR STEERING COLUMN MODULE (TOP OF STEERING COLUMN) TRUNK WASHER NOZZLE HOSE HEATER WINDSHIELD WASHER FLUID LEVEL INDICATOR SWITCH (LEFT FRONT WHEELWELL) WINDSHIELD WASHER FLUID PUMP (RIGHT FRONT OF ENGINE COMPT) WINDSHIELD WASHER SYSTEM SWITCH WIPER PARK HEATER WIPER PARK POSITION HEATER RELAY WIPER SWITCH YEL WIRE YEL/VIO WIRE YEL/WHT WIRE