Mercedes-Benz S-class W221 facelift (2009-2013) wht/yel Wiring diagrams

ATTENTION ASSIST SENSOR BASIC BASIC PREMIUM BAV A BLA DF HL S DF HL M MP S BLS L BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/ORG WIRE BLK/PNK WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLS H LS A BLS M LRWS M CLU M BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/ORG WIRE BLU/YEL WIRE BRN WIRE BRN/YEL WIRE CAN E H CAN E L COMPUTER DATA LINES SYSTEM DF HR M DF HR S PML A FRONT AXLE BRAKE PRESSURE SENSOR FRONT AXLE INLET SOLENOID VALVE FRONT AXLE SWITCHOVER SOLENOID VALVE FUSE FUSE (RIGHT REAR ENGINE COMPT) GRN WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/PNK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HIGH PRESSURE, RETURN PUMP HOT AT ALL TIMES HOT AT ALL TIMES ENGINE COMPARTMENT PREFUSE BOX LEFT FRONT AXLE SOLENOID VALVE (HOLD) LEFT FRONT PRESSURE SENSOR LEFT FRONT WHEEL SPEED SENSOR (AT LEFT FRONT WHEEL) LEFT INSTRUMENT PANEL FUSE BOX (UNDER LEFT SIDE DASH COVER) LEFT REAR AXLE SOLENOID VALVE (HOLD) LEFT REAR AXLE SOLENOID VALVE (RELEASE) LEFT REAR PRESSURE SENSOR RIGHT FRONT AXLE SOLENOID VALVE (RELEASE) LRWS SIG NCA WIRE PML A CAN H H CAN H L PNK WIRE PREMIUM REAR AXLE INLET SOLENOID VALVE REAR AXLE SWITCHOVER SOLENOID VALVE RED WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT AXLE SOLENOID VALVE (HOLD) RIGHT FRONT RIGHT REAR AXLE PRESSURE SOLENOID VALVE (RELEASE) SENSOR RIGHT REAR AXLE SOLENOID VALVE (HOLD) RIGHT REAR LEFT FRONT AXLE PRESSURE SOLENOID VALVE (RELEASE) SENSOR SPS (PML) SOLENOID VALVE STOP LAMP SWITCH TRACTION SYSTEM HYDRAULIC UNIT VIO WIRE VIO/WHT WIRE W/ BASIC W/ PREMIUM W/ W/ BASIC PREMIUM WHT WIRE WHT/YEL WIRE

ABS/MIL IND BAS BRAKE BOOSTER BAS RELEASE SWITCH BAS SOLENOID VALVE BLK/BRN WIRE BLK/GRY WIRE BLK/ORG WIRE BLK/PNK WIRE BLK/RED WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE BRAKE FLUID INDICATOR SWITCH (LEFT REAR OF BRAKE FLUID WARNING LAMP IND BRN WIRE BRN/WHT WIRE BRN/YEL WIRE CAN H H CAN H L CAN-F L CAN-F H COMPUTER DATA LINES SYSTEM DIAPHRAGM TRAVEL SENSOR ENGINE COMPT) ESP WARNING LAMP IND FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR ENGINE COMPT) FUSE GRN/PNK WIRE GRN/YEL WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT REAR WHEEL SPEED SENSOR (AT LEFT REAR WHEEL) NCA WIRE PNK WIRE POWER DISTRIBUTION SYSTEM RED/YEL WIRE RIGHT FRONT WHEEL SPEED SENSOR (AT RIGHT FRONT WHEEL) RIGHT REAR WHEEL SPEED SENSOR (AT RIGHT REAR WHEEL) SIG VIO WIRE VIO/WHT WIRE WHT WIRE WHT/YEL WIRE YAW RATE, LATERAL, LONGITUDINAL ACCELERATION SENSOR YEL WIRE YEL/WHT WIRE

1 2 3 4 5 6 7 8 9 10 11 AUDIO LEFT AUDIO RIGHT 1 2 3 4 5 6 7 8 9 10 11 CAN F H 1 2 3 4 LVDS RX- GROUND LVDS RX+ GROUND 1 2 MOST IN MOST OUT 5 3 (NOT USED) 6 4 2 PNK WIRE ANTENNA SPLITTER AUDIO IN R AUDIO OUT L AUDIO OUT L AUDIO OUT L AUDIO OUT R AUDIO-IN L BACKUP CAMERA VOLTAGE SUPPLY MODULE (IF EQUIPPED) (LEFT SIDE OF TRUNK) BLK WIRE BLK/WHT WIRE BLU WIRE BLUETOOTH ANTENNA BRN WIRE CAN A H CAN A L COMAND CONTROL UNIT COMPUTER DATA LINES SYSTEM FUSE 122, RELAY MODULE (CENTER TRUNK) FUSE 99 GRN WIRE GROUND GROUND SHIELD 12 13 14 HANDS-FREE SYSTEM MICROPHONE GROUP (PART OF INTERIOR REARVIEW MIRROR) HEADPHONES CONNECTING POINT HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT INSTRUMENT PANEL FUSE BOX (UNDER LEFT SIDE DASH COVER) MC 1 MC 2 PNK WIRE MC GND MC SHIELD MEDIA INTERFACE CONNECTOR MOST DATA BUS CIRCUIT NCA WIRE ORG/ WIRE PNK WIRE REAR SAM CONTROL MODULE W/ FUSE/ RED/BLU WIRE SHIELD SHIELD BLUETOOTH SHIELD GPS USB (UNIVERSAL SERIAL BUS) CONNECTOR W/O MEDIA INTERFACE WAKE UP 30 CAN F L WALKMAN SEPARATION POINT WHT WIRE WHT/YEL WIRE YEL WIRE YEL/WHT WIRE

1 2 3 4 5 6 7 8 9 10 11 AUDIO LEFT AUDIO RIGHT 1 2 3 4 5 6 7 8 9 10 11 CAN F H 1 2 3 4 LVDS RX- GROUND LVDS RX+ GROUND 1 2 MOST IN MOST OUT 5 3 (NOT USED) 6 4 2 PNK WIRE ANTENNA SPLITTER AUDIO IN R AUDIO OUT L AUDIO OUT L AUDIO OUT L AUDIO OUT R AUDIO-IN L BACKUP CAMERA VOLTAGE SUPPLY MODULE (IF EQUIPPED) (LEFT SIDE OF TRUNK) BLK WIRE BLK/WHT WIRE BLU WIRE BLUETOOTH ANTENNA BRN WIRE CAN A H CAN A L COMAND CONTROL UNIT COMPUTER DATA LINES SYSTEM FUSE 122, RELAY MODULE (CENTER TRUNK) FUSE 99 GRN WIRE GROUND GROUND SHIELD 12 13 14 HANDS-FREE SYSTEM MICROPHONE GROUP (PART OF INTERIOR REARVIEW MIRROR) HEADPHONES CONNECTING POINT HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT INSTRUMENT PANEL FUSE BOX (UNDER LEFT SIDE DASH COVER) MC 1 MC 2 PNK WIRE MC GND MC SHIELD MEDIA INTERFACE CONNECTOR MOST DATA BUS CIRCUIT NCA WIRE ORG/ WIRE PNK WIRE REAR SAM CONTROL MODULE W/ FUSE/ RED/BLU WIRE SHIELD SHIELD BLUETOOTH SHIELD GPS USB (UNIVERSAL SERIAL BUS) CONNECTOR W/O MEDIA INTERFACE WAKE UP 30 CAN F L WALKMAN SEPARATION POINT WHT WIRE WHT/YEL WIRE YEL WIRE YEL/WHT WIRE

ANT ANTENNA SPLITTER BLK WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE COMAND CONTROL UNIT COMPUTER DATA LINES SYSTEM EC LED TDC LED IC LED ECS ICS ICS CRASH EMERGENCY CALL SYSTEM ANTENNA SPLITTER (LEFT SIDE OF TRUNK) EMERGENCY CALL SYSTEM CONTROL UNIT (LEFT FRONT OF TRUNK) EMERGENCY CALL SYSTEM LEFT BACKUP ANTENNA (LEFT OF TRUNK) EMERGENCY CALL SYSTEM RIGHT BACKUP ANTENNA (RIGHT OF TRUNK) FUSE 138 W/ FUSE, RELAY MODULE (CENTER TRUNK) GPS ROOF ANTENNA TELEPHONE, GPS ROOF ANTENNA (GPS ROOF ANTENNA: REAR GRN WIRE GRN/RED WIRE GRY WIRE GRY/RED WIRE GRY/WHT WIRE HOT W/ CIRCUIT LSP + CAN-D H CAN-D L MIC SHIELD MIC MUTE NCA WIRE ORG/ WIRE REAR SAM CONTROL MODULE RED WIRE SOUND SYSTEMS TELEPHONE ANTENNA VIO WIRE WHT WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/PNK WIRE YEL/RED WIRE

2 1 MOST OUT MOST IN ACC IDLT. ACC DET. BLK WIRE BLU WIRE BRN WIRE CABEL DET COMAND CONTROL UNIT D- D+ FUSE 111 GRN WIRE GRY WIRE GRY/BRN WIRE GRY/PNK WIRE HOT AT ALL TIMES LEFT INSTRUMENT PANEL FUSE BOX (UNDER LEFT SIDE DASH COVER) MEDIA INTERFACE CONNECTOR MEDIA INTERFACE CONTROL UNIT MOST 8 7 6 5 4 3 2 1 MOST DATA BUS CIRCUIT NCA WIRE ORG/ WIRE PNK WIRE RED WIRE RED/BLU WIRE TX RX USB SHIELD USB DIGITAL GND WAKE-UP WHT WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/YEL WIRE YEL WIRE YEL/BRN WIRE

BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BRN WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/RED WIRE CAN B H CAN B L CAN-E L CAN-E H (-) SH 31 31 CENTER LEFT FRONT PTS ULTRASONIC SENSOR CENTER RIGHT FRONT PTS ULTRASONIC SENSOR (REAR BUMPER) COCKPIT SWITCH GROUP COMPUTER DATA LINES SYSTEM DATA FUSE 142 MODULE W/ FUSE, RELAY MODULE (CENTER TRUNK) GRN WIRE GRN/WHT WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES INNER LEFT FRONT PTS ULTRASONIC SENSOR (REAR BUMPER) INNER LEFT OUTER RIGHT REAR PTS REAR PTS ULTRASONIC ULTRASONIC SENSOR SENSOR INNER RIGHT FRONT PTS ULTRASONIC SENSOR INNER RIGHT REAR PTS ULTRASONIC SENSOR LEFT REAR FOOTWELL OUTER LEFT FRONT PTS ULTRASONIC SENSOR OUTER LEFT REAR PTS ULTRASONIC SENSOR OUTER RIGHT FRONT PTS ULTRASONIC SENSOR PTS CONTROL MODULE (RIGHT SIDE TRUNK) PTS OFF SWITCH REAR PTS WARNING INDICATOR REAR SAM CONTROL RED/WHT WIRE UPPER CONTROL PANEL MODULE WHT/RED WIRE WHT/YEL WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

"FORWARD" BUTTON 1 2 3 31 LIN-BUS 30 13 3 CAN-A L CAN-A H 31 PROGKEY CAN-A L WBS-OUT 30 CAN-A H WBS-IN WBS-LED 5 13 16 6 7 LSP+ LSP- ANTENNA SPLITTER BACK BUTTON BACKREST SIDE SEAT CONTOUR BUTTON BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/RED WIRE BUTTON "BACK" BUTTON "ON" CAN B H CAN B L CAN D H CAN D L CENTER CONSOLE BUTTON GROUP COMAND CONTROL UNIT COMPUTER DATA LINES SYSTEM DISC/RADIO QUICK SELECT BUTTON EMERGENCY CALL SYSTEM CONTROL UNIT (LEFT FRONT OF TRUNK) FIRM MASSAGE FUNCTION BUTTON FREELY PROGRAMM- ABLE BUTTON FRONT CENTRAL OPERATING UNIT GENTLE MASSAGE FUNCTION BUTTON GPS GRN WIRE GRY WIRE GRY/RED WIRE GRY/WHT WIRE HAZARD WARNING SYSTEM BUTTON HEAD RESTRAINT FOLDING BUTTON INCREASE VOLUME BUTTON LEFT "BACK" BUTTON LEFT REAR FOOTWELL LEFT SCREEN BUTTON LEFT SEAT SELECTION CAN-AL CAN-AH BUTTON LUMBAR SUPPORT HEIGHT ADJUSTMENT BUTTON LUMBAR SUPPORT SEAT CONTOUR BUTTON MULTI- CONTOUR SEAT QUICK SELECT BUTTON NCA WIRE PORTABLE CTEL ANTENNA AMPLIFIER (LEFT SIDE OF TRUNK) RCP(HBF) CONTROL UNIT REAR TURN/ FUSH CONTROL REAR WINDOW ROLLER SUN BLIND BUTTON RED WIRE RED/WHT WIRE REDUCE VOLUME BUTTON RIGHT "BACK" BUTTON RIGHT SCREEN BUTTON RIGHT SEAT SELECTION BUTTON TELEPHONE, GPS ROOF ANTENNA TELEPHONE/ NAVIGATION QUICK SELECT BUTTON TRANSMISSION MODES BUTTON TURN/ PUSH CONTROL UHI PORTABLE CTEL HOLDER (UNIVERSAL HANDY INTERFACE) UNIVERSAL PORTABLE CTEL INTERFACE (UPCI (UHI)) CONTROL MODULE UPPER CONTROL PANEL CONTROL MODULE VIO WIRE VOLUME CONTROL WHT/YEL WIRE YEL WIRE YEL/BLK WIRE

A S HAV A T DCM A T DCP A T OIL P A U UIP B D LIN BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/ORG WIRE BLK/RED WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/WHT WIRE BRN/YEL WIRE COOLANT TEMPERATURE SENSOR (FRONT OF ENGINE) DOWNSTREAM TWC (KAT) (UNDER LEFT FRONT OF VEHICLE) DOWNSTREAM TWC (KAT) (UNDER RIGHT FRONT OF VEHICLE) E A LSHK E F KWGA E F KWGB E S FSOEL E-A-DS EV 2 EV 3 EV 4 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/WHT WIRE ME-SFI (ME) CONTROL UNIT (RIGHT REAR OF ENGINE COMPT) OIL LEVEL SWITCH PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PNK/GRN WIRE PNK/GRY WIRE PNK/VIO WIRE PNK/YEL WIRE RED WIRE RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE STARTING/ CHARGING SYSTEM VARIABLE INTAKE MANIFOLD SWITCHOVER VALVE (TOP FRONT OF ENGINE) VIO WIRE VIO/BLK WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/RED WIRE

BLK WIRE BLK/BLU WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/RED WIRE BLU/YEL WIRE BRN RED/ WIRE BRN WIRE BRN/BLK WIRE BRN/WHT WIRE BRN/YEL WIRE CYLINDER IGNITION COIL 1 (TOP OF RIGHT CYLINDER BANK) CYLINDER IGNITION COIL 2 (TOP OF RIGHT CYLINDER BANK) CYLINDER IGNITION COIL 3 (TOP OF RIGHT CYLINDER BANK) CYLINDER IGNITION COIL 4 (TOP OF LEFT CYLINDER BANK) CYLINDER IGNITION COIL 5 (TOP OF LEFT CYLINDER BANK) CYLINDER IGNITION COIL 6 (TOP OF LEFT CYLINDER BANK) GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/RED WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE GRY/YEL WIRE LEFT INTAKE CAMSHAFT SOLENOID NCA WIRE PNK/YEL WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE SPARK PLUG VIO/BLK WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/RED WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE