Mercedes-Benz S-class W221 facelift (2009-2013) red/blk Wiring diagrams

1 2 3 4 5 6 7 8 9 10 11 12 30 31 (+) CAN-I H 1 2 3 4 HV + HV - INTER LOCK OUT INTER LOCK IN 15 CAN-I L 6 21 20 8 9 30 INTERLOCK OUT 87 CANIH CANIL BATTERY MANAGEMENT SYSTEM CONTROL UNIT (RIGHT REAR ENGINE COMPT) BLK WIRE BLU WIRE BLU/YEL WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CONTACTOR DC/DC CONVERTER CONTROL MODULE (RIGHT FRONT WHEELHOUSE) FUSE FUSE FUSE GRN WIRE GRN/RED WIRE GRN/WHT WIRE HIGH VOLT BATTERY COOLING SYSTEM SHUTOFF VALVE HIGH VOLTAGE BATTERY HIGH VOLTAGE FUSE BOX (CENTER REAR OF ENGINE COMPT) HOT AT ALL TIMES INTER LOCK IN 30 INTER LOCK OUT ME-SFI (ME) CONTROL MODULE (RIGHT REAR OF ENGINE COMPT) NCA WIRE PNK/BLK WIRE PNK/BLU WIRE PNK/GRN WIRE POWER ELECTRONICS CONTROL UNIT (RIGHT SIDE UNDER CARRIAGE) PYROTECHNICAL SEPARATOR (UNDER RIGHT RED WIRE RED/BLK WIRE RED/BRN WIRE RED/GRN WIRE RED/YEL WIRE RESTRAINT SYSTEM CONTROL MODULE (FRONT OF CENTER CONSOLE) RIGHT INSTRUMENT PANEL FUSE BOX (UNDER RIGHT SIDE DASH COVER) SIDE OF DASH) YEL/RED WIRE

11 10 9 1 2 CAN-E L CAN-E H 30 BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE GRN WIRE GRN/WHT WIRE HEATER COIL STEERING WHEEL HEATER HEATER COIL TEMPERATURE SENSOR HEATER IND HEATER SWITCH HOT AT ALL TIMES LIN LRH+ NTC- PNK/BLU WIRE RED WIRE RED/BLK WIRE STEERING COLUMN ADJUSTMENT RAISE/ LOWER, FORWARD/ BACK SWITCH STEERING COLUMN MODULE (TOP OF STEERING COLUMN) STEERING WHEEL ELECTRONICS WHT WIRE

2 AM/FMM ANT BASS MODULE SPEAKER BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/WHT WIRE CAN B H CAN B L CC 1 2 3 4 5 COMPUTER DATA LINES SYSTEM FUSE 119 FUSE 129 FUSE 131 FZV GRN WIRE GRY WIRE GRY/RED WIRE HIGH DEFINITION TUNER CONTROL UNIT HOT AT ALL TIMES KEYLESS GO CONTROL MODULE (IF EQUIPPED) (RIGHT REAR TRUNK) LEFT REAR SURROUND SPEAKER NCA WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE REAR WINDOW ANTENNA AMPLIFIER MODULE (REAR CENTER OF ROOF) RED WIRE RED/BLK WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE SHIELD TWEETER LEFT REAR DOOR SPEAKER GROUP TWEETER RIGHT REAR DOOR SPEAKER GROUP VIO WIRE WHT WIRE WHT/GRN WIRE WOOFER

BLK WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CENTER COCKPIT SPEAKER (CENTERFILL) CENTER SUBWOOFER+ TXD CENTER SUBWOOFER- DIGITAL SOUND PROCESSOR (LEFT SIDE OF TRUNK) EMERGENCY CALL SYSTEM CONTROL UNIT (LEFT FRONT OF TRUNK) FRT CENTER TWEETER- FUSE 84 FUSE 77 GRN WIRE GRY WIRE GRY/GRN WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES LEFT REAR SURROUND SPEAKER LSP + MIC IN - MOST DATA BUS CIRCUIT MUTE NCA WIRE ORG/ WIRE RED/BLK WIRE RED/GRN WIRE REMOTE WAKEUP MOST WAKEUP RH FRT WOOFER- LH FRT WOOFER- RH REAR WOOFER- LH REAR WOOFER- RIGHT INSTRUMENT PANEL FUSE BOX (UNDER RIGHT SIDE DASH COVER) SOUND AMPLIFIER MICROPHONE VIO WIRE WHT WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE GRN WIRE GRY WIRE LEFT FRONT DOOR TWEETER LEFT REAR DOOR TWEETER NCA WIRE ORG/ WIRE RED WIRE RED/BLK WIRE RIGHT FRONT DOOR TWEETER RIGHT FRONT DOOR WOOFER RIGHT REAR DOOR TWEETER VIO WIRE WHT WIRE YEL WIRE

BASS MODULE SPEAKER BLK WIRE BLU WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE GRN WIRE GRY WIRE LEFT FRONT DOOR SPEAKER LEFT FRONT DOOR WOOFER LEFT REAR DOOR WOOFER ORG/ WIRE RED WIRE RED/BLK WIRE RIGHT FRONT DOOR SPEAKER RIGHT REAR DOOR WOOFER RIGHT REAR SURROUND SPEAKER SOUND AMPLIFIER (LEFT SIDE OF LUGGAGE COMPT) VIO WIRE WHT WIRE YEL WIRE

1 2 CAN B L CAN B H 13 14 COMPUTER CAN-B H CAN-B L DATA LINES SYSTEM 6 5 4 FLAT WIRE FLAT WIRE FLAT WIRE BLU/VIO WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/RED WIRE BRN/VIO WIRE BRN/YEL WIRE DRIVER POWER WINDOW OUTSIDE MIRROR, TRUNK LID SWITCH FLAT WIRE FLAT WIRE FLAT WIRE 31 UB DATA FUEL FILLER FLAP CL (ZV) MOTOR (RIGHT SIDE OF TRUNK) GEARING 2 GRY/BLU WIRE HD AS HOT AT ALL TIMES FUSE HOT AT ALL TIMES FUSE PREFUSE BOX (RIGHT FRONT FOOTWELL) INTERIOR LEFT FRONT DOOR CONTROL MODULE (IN LEFT FRONT DOOR) LF POWER WINDOW SW LOCK PAWL REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (CENTER TRUNK) RED WIRE RED/BLK WIRE RF POWER WINDOW SW RIGHT INSTRUMENT PANEL FUSE BOX (UNDER RIGHT SIDE DASH COVER) ROTARY TUMBLER TRUNK LID CL (ZV) MOTOR (CENTER OF TRUNK LID) TRUNK LID CONTACT SWITCH TRUNK LID EMERGENCY RELEASE SWITCH TRUNK LID EXTERNAL OPERATION SWITCH TRUNK LID OPEN/CLOSE SW

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

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 (LEFT REAR OF ENGINE) 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 ENGINE FUSE 6 COMPARTMENT PREFUSE BOX (RIGHT REAR ENGINE COMPT) 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) NCA WIRE PNK/BLK WIRE PNK/BLU WIRE PNK/BRN WIRE PNK/GRN WIRE PNK/GRY WIRE PNK/WHT WIRE PNK/YEL WIRE PRESSURE SENSOR RED WIRE RED/BLK 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 (RIGHT SIDE OF ENGINE) 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) (UNDER LEFT FRONT OF VEHICLE) DOWNSTREAM TWC (KAT) (UNDER RIGHT FRONT OF VEHICLE) ENGINE 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 VARIABLE INTAKE MANIFOLD SWITCHOVER VALVE (TOP LEFT FRONT OF 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