Mercedes-Benz S-class W221 facelift (2009-2013) (right front footwell) Wiring diagrams

ABC CONTROL MODULE (LEFT REAR OF ENGINE COMPT) ABC FRONT AXLE VALVE UNIT (LEFT SIDE OF ABC PRESSURE SENSOR (UNDER RIGHT FRONT OF VEHICLE) BLK WIRE BLU/GRN WIRE BLU/VIO WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/YEL WIRE ENGINE COMPT) FRONT SAM CONTROL MODULE FUSE 46 W/ FUSE, RELAY MODULE (LEFT REAR ENGINE COMPT) GRY/BLK WIRE GRY/BRN WIRE GRY/VIO WIRE GRY/WHT WIRE HOT AT ALL TIMES LEFT FRONT ABC PRESSURE SENSOR (BEHIND LEFT FRONT SIDE OF FRONT BUMPER) LEFT FRONT BODY ACCELERATION SENSOR (LEFT SIDE OF ENGINE COMPT) LEFT FRONT LEVEL SENSOR (LEFT FRONT WHEELWELL) LEFT FRONT SUSPENSION STRUT PLUNGER CHECK VALVE LEFT FRONT SUSPENSION STRUT PLUNGER VALVE NVLM SDVV SENSOR SENSOR 31 ABVRV ABVRM NVRS NVRS NVLV PFBHLM SDVS PFBHLV PFBHLS PFBVLM PFBVLS PFBHLS NVLS 31 PNK/GRN WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT BODY ACCELERATION SENSOR (RIGHT SIDE OF ENGINE COMPT) RIGHT FRONT LEVEL SENSOR (RIGHT FRONT WHEELWELL) RIGHT FRONT SUSPENSION STRUT PLUNGER CHECK VALVE RIGHT FRONT SUSPENSION STRUT PLUNGER VALVE SIG VAA L ABVLS VAA R VAA R VAV L VAV R VVAV L NVRM VAV R WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/RED WIRE YEL/BLU WIRE YEL/GRN WIRE

AIR SUSPENSION COMPRESSOR RELAY AIRMATIC COMPRESSOR UNIT AIRMATIC W/ ADS CONTROL MODULE (LEFT REAR OF ENGINE COMPT) BLK/YEL WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FRONT SAM CONTROL MODULE W/ FUSE, RELAY FUSE 46 FUSE 56 FUSE 6 FUSE 9 PREFUSE BOX (RIGHT REAR ENGINE COMPT) GRN/RED WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES LEFT FRONT AXLE DAMPING VALVE UNIT (LEFT FRONT WHEEL HOUSE) LEFT FRONT BODY ACCELERATION SENSOR (LEFT SIDE OF ENGINE COMPT) LEFT FRONT LEVEL SENSOR (LEFT FRONT WHEELWELL) MODULE (LEFT REAR ENGINE COMPT) NCA WIRE NVRS 1 VKPS VAL 1 VAL 2 30 VALV+ RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT FRONT BODY ACCELERATION SENSOR (RIGHT SIDE OF ENGINE COMPT) SIG SIG SIG ZAVVL NVLV SIG ZAMVL NVRM (+) SIG VAR 2 NVLS 1 VAR 1 ZASVL 31 VARV VKPV WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/PNK WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/PNK WIRE ZAMVL NVLM SIG ZASVL ZAVVL NVRV

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

1 2 3 4 HV + HV - INTERLOCK OUT INTERLOCK IN BATTERY MANAGEMENT SYSTEM CONTROL UNIT (RIGHT REAR BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE CAN-I H CAN-I L INTERLOCK IN INTERLOCK OUT COMPUTER DATA LINES SYSTEM DC/DC CONVERTER CONTROL MODULE (RIGHT FRONT WHEELHOUSE) ELECTRIC REFRIGERANT COMPRESSOR (LEFT FRONT ENGINE) ENGINE COMPT) ENGINE COOLANT CIRCULATION PUMP (RIGHT OF RADIATOR) FRESH AIR/ RECIRCULATED AIR FLAP ACTUATOR MOTOR (RIGHT SIDE OF HVAC UNIT) FUSE 1 GRN WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE HEATER BOOSTER CONNECTOR HIGH VOLTAGE FUSE BOX HOT AT ALL TIMES ENGINE COMPARTMENT FUSE 5 PREFUSE BOX (RIGHT REAR ENGINE COMPT) HOT AT ALL TIMES INTERIOR PREFUSE FUSE 7 BOX (RIGHT FRONT FOOTWELL) LEFT CENTER AIR FLAP ACTUATOR MOTOR (LEFT CENTER OF HVAC UNIT) LEFT DEFROSTER VENT FLAP ACTUATOR MOTOR (TOP LEFT SIDE OF HVAC UNIT) LEFT FOOTWELL FLAP ACTUATOR MOTOR (LOWER LEFT CENTER OF HVAC UNIT) LEFT SIDE OUTLET FLAP ACTUATOR MOTOR (TOP LEFT CENTER OF HVAC UNIT) LOWER LEFT BLENDING AIR FLAP ACTUATOR MOTOR (LOWER LEFT SIDE OF HVAC UNIT) LOWER RIGHT BLENDING AIR FLAP ACTUATOR MOTOR (LOWER RIGHT SIDE OF HVAC UNIT) NCA WIRE PNK WIRE PNK/BLU WIRE PNK/GRN WIRE PTC HEATER BOOSTER RED WIRE RED/BLK WIRE RED/GRN WIRE RIGHT CENTER AIR FLAP ACTUATOR MOTOR (RIGHT CENTER OF HVAC UNIT) RIGHT DEFROSTER VENT FLAP ACTUATOR MOTOR (TOP RIGHT SIDE OF HVAC UNIT) RIGHT FOOTWELL FLAP ACTUATOR MOTOR (LOWER RIGHT CENTER OF HVAC UNIT) RIGHT SIDE OUTLET FLAP ACTUATOR MOTOR (TOP RIGHT CENTER OF HVAC UNIT) UPPER LEFT BLENDING AIR FLAP ACTUATOR MOTOR UPPER RIGHT BLENDING AIR FLAP ACTUATOR MOTOR VIO WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

1 2 CAN-C H CAN-C L 1 2 CAN-C L CAN-C H 13 14 CAN-B H CAN-B L 7 5 RFL-L RFL-L BACK UP LAMP BACKUP CAMERA VOLTAGE SUPPLY MODULE (LEFT SIDE OF TRUNK) BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM ELECTRIC CONTROL UNIT (VGS) FUSE GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES INTELLIGENT SERVO MODULE FOR DIRECT SELECT (TRANSMISSION HOUSING) INTERIOR PREFUSE BOX LEFT REAR FOOTWELL LEFT TAILLAMP REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED/WHT WIRE RIGHT TAILLAMP W/ BACKUP CAMERA WHT WIRE

13 14 2 CAN-B H CAN-B L 3.BL 14 27 KZL-R KZL-L 2 11 CAN-E H CAN-E L 3 1 7 8 NSL-R BSL-R RFL-L BI-R 4 9 5 NSL-L BSL-L RFL-L 57 L 57 R BACKUP LAMPS CIRCUIT BI-L BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/GRY WIRE CENTER HIGH MOUNTED STOP LAMP COMPUTER DATA LINES SYSTEM FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/PNK WIRE GRY/VIO WIRE GRY/YEL WIRE HOT AT ALL TIMES ENGINE COMPARTMENT PREFUSE BOX FUSE LEFT ACTIVE CURVE ILLUMINATION POSITION SENSOR LEFT FRONT HEADLAMP UNIT LEFT LICENSE PLATE LAMP LEFT REAR FOOTWELL LEFT RIGHT FRONT FRONT SIDE SIDE MARKER MARKER LAMP LAMP LEFT TAILLAMP NCA WIRE PARKING LAMP PNK 6 WIRE REAR FOG LAMP REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (CENTER TRUNK) RED WIRE RED/GRY WIRE RIGHT ACTIVE CURVE ILLUMINATION POSITION SENSOR RIGHT FRONT HEADLAMP UNIT RIGHT LICENSE PLATE LAMP RIGHT TAILLAMP STANDING STOP, TAIL, REAR PARKING LAMP REAR SIDE MARKER LAMP BACKUP LAMP FOG LAMP STOP/ TAIL/ PARKING LAMP TURN SIGNAL LAMP TURN SIGNAL LAMP (LEFT SIDE OF ENGINE COMPT) TURN SIGNAL LAMP REAR SIDE BACKUP LAMP MARKER LAMP VIO WIRE W/ BACKUP CAMERA WHT WIRE XENON HEADLAMP CONTROL MODULE YEL WIRE

1 2 3 CAN-E L CAN-E H 31 1 2 CAN-E L CAN-E H 11 2 CAN-E L CAN-E H 13 12 CAN-E L CAN-E H 17 18 CAN-E L CAN-E H 2 1 CAN E L CAN E H 2 3 CAN-E L CAN-E H 3 1 CAN E L CAN E H 4 3 CAN-E L CAN-E H 5 6 CAN-E L CAN-E H 54 41 CAN-E L CAN-E H 7 6 CAN-E L CAN-E H ABC CONTROL MODULE (LEFT REAR OF ENGINE COMPT) AIRMATIC W/ ADS CONTROL MODULE (LEFT REAR OF BRN WIRE CAN E H CAN E L CAN-E L CAN-E H CENTRAL GATEWAY CONTROL MODULE (LEFT FRONT UPPER FOOTWELL) CHASSIS CAN/COCKPIT VOLTAGE DISTRIBUTOR CONNECTOR CHASSIS CAN/FFS (RBA) VOLTAGE DISTRIBUTOR CONNECTOR EIS (EZS) CONTROL UNIT ELECTROHYDRAULIC POWER STEERING (RIGHT FRONT ENGINE COMPT) ESP CONTROL MODULE (5.5L) FOOTWELL) FRONT SAM CONTROL MODULE GRN WIRE GRN/WHT WIRE GRN/YEL WIRE LEFT FRONT REVERSIBLE EMERGENCY TENSIONING ME-SFI (ME) CONTROL MODULE (RIGHT REAR OF MULTI-FUNCTION CAMERA (IF EQUIPPED) NIGHT VISION ASSIST CONTROL UNIT (IF EQUIPPED) (LEFT FRONT FOOTWELL) PTS CONTROL MODULE RADAR SENSORS CONTROL UNIT (SGR) (W/ DISTANCE PLUS) (RIGHT SIDE OF TRUNK) RESTRAINT SYSTEMS CONTROL MODULE (FRONT OF CENTER CONSOLE) RETRACTOR (BASE OF LEFT FRONT "B" PILLAR) RETRACTOR (BASE OF RIGHT FRONT "B" PILLAR) RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING STEERING COLUMN MODULE (TOP OF STEERING COLUMN) TPM CONTROL MODULE (RIGHT FRONT VIDEO, RADAR SENSOR CONTROL UNIT (W/ DISTRONICS PLUS) W/ ABC W/ FUSE, RELAY MODULE (LEFT REAR ENGINE COMPT)

1 2 3 CAN-A L CAN-A H 31 1 2 3 CAN-B L CAN-B H 31 1 2 CAN B L CAN B H 1 2 CAN-A L CAN-A H 1 3 CB CAN-B L CAN-B H 12 3 CAN-B L CAN-B H 13 3 CAN-A L CAN-A H 15 14 CAN-B L CAN-B H 3 4 CAN-A L CAN-A H 3 6 CAN-A L CAN-A H 4 3 CAN B L CAN B H 4 8 CAN-A L CAN-A H 5 6 CAN-B L CAN-B H 7 9 CAN-B L CAN-B H 9 10 CAN-B L CAN-B H 9 18 CAN-B L CAN-B H BLK WIRE BLK/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE COMAND CONTROL UNIT FRONT CENTRAL OPERATING UNIT GRN WIRE PNK/BRN WIRE PTS CONTROL MODULE (RIGHT SIDE TRUNK) RCP (HBF) CONTROL MODULE REAR AC CONTROL MODULE (IF EQUIPPED) REAR SEATS CONTROL MODULE (RIGHT SIDE OF TRUNK) RIGHT FRONT DOOR CONTROL MODULE (IN RIGHT FRONT DOOR) RIGHT FRONT SEAT CONTROL MODULE RIGHT INTERIOR CAN/FFS (RBA) RIGHT REAR DOOR CONTROL MODULE (IN RIGHT REAR DOOR) TELEMATICS CAN VOLTAGE DISTRIBUTOR CONNECTOR VOLTAGE DISTRIBUTOR CONNECTOR WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT (RIGHT FRONT SEAT) YEL WIRE

ACCELERATOR PEDAL SENSOR (TOP OF ACCELERATOR PEDAL ASSEMBLY) BLK/BLU WIRE BLK/GRN WIRE BLK/PNK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BLU/YEL WIRE BRN WIRE BRN/PNK WIRE BRN/WHT WIRE BRN/YEL WIRE CAN I H CAN I L CRASH FUSE 116 FUSE 118 FUSE 128 GRN WIRE GRN/BRN WIRE GRN/PNK WIRE GRN/VIO WIRE GRY/BLU WIRE GRY/PNK WIRE HOT AT ALL TIMES HOT AT ALL TIMES RIGHT INSTRUMENT PANEL FUSE BOX FUSE 75 HV- HYBRID ENGINE HOOD CONTACT SWITCH NCA WIRE PNK/BLK WIRE PNK/GRN WIRE PNK/YEL WIRE POWER ELECTRONICS CIRCULATION PUMP RELAY 1 POWER ELECTRONICS CIRCULATION PUMP RELAY 2 POWER ELECTRONICS CONTROL UNIT (RIGHT SIDE UNDERCARRIAGE) REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (CENTER TRUNK) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE STARTING/ CHARGING SYSTEM T EM T EM GND TNA U COS U SIN VIO/GRN WIRE VIO/YEL WIRE

15 U U UDB EKP LAUF A S SL P AIR PUMP (CENTER FRONT OF ENGINE) AIR PUMP RELAY BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/WHT WIRE BRN/YEL WIRE CAN C H CAN C L CAN-I H CAN-E H CAN-C H EGS COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM CRASH CAN-I L CAN-E L CAN-C L D/S DS SIG EKP EKP LAUF ENGINE CIRCUIT 87 RELAY FUEL PRESSURE SENSOR (UNDER LEFT REAR OF VEHICLE) FUEL PUMP (FP) FUEL PUMP CONTROL MODULE (UNDER LEFT REAR SEAT) FUSE 20 FUSE 22 FUSE 21 STARTER CIRCUIT 50 RELAY FUSE 23 FUSE 24 FUSE 45 FUSE 55 GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/PNK WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/PNK WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED LEFT REAR FOOTWELL ME-SFI (ME) CONTROL UNIT (RIGHT REAR OF ENGINE COMPT) NCA WIRE ORG/ WIRE PREMAIR SENSOR (BEHIND RIGHT SIDE OF RADIATOR) PURGE CONTROL VALVE (LEFT FRONT OF ENGINE COMPT) PWG+ (-) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE SIG SUPPLEMENTAL RESTRAINTS SYSTEM SYSTEM TNA 50 RV VIO/GRN WIRE VIO/YEL WIRE YEL/RED WIRE