Mercedes-Benz S-class W221 facelift (2009-2013) nca Wiring diagrams

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

AIRMATIC PRESSURE SENSOR AIRMATIC W/ ADS CONTROL MODULE (LEFT REAR OF ENGINE COMPT) BLK/RED WIRE BLK/YEL WIRE BLU/RED WIRE BLU/WHT WIRE BRN/BLK WIRE BRN/GRY WIRE CAN E H CAN E L CENTRAL RESERVOIR CHARGE VALVE COMPUTER DATA LINES SYSTEM GRN WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE HAL 1 HAL 2 HAL V HAR 1 HAR 2 HAR V LEFT LEFT RIGHT REAR REAR FRONT FRONT LEFT REAR AXLE DAMPING VALVE UNIT (LEFT REAR WHEEL HOUSE) LEVELING CONTROL VALVES NCA WIRE NHRM NHRS 1 NHRV REAR AXLE LEVEL SENSOR (UNDER REAR CENTER OF VEHICLE) RIGHT RIGHT REAR AXLE DAMPING VALVE UNIT (RIGHT REAR WHEEL HOUSE) WHT/BLU WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE

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 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

BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/YEL WIRE BRN WIRE BRN/WHT WIRE EMERGENCY VEHICLE SYSTEM FIRE EXTINGUISHING FIRE EXTINGUISHING SYSTEM CONTROL MODULE FRESH AIR SENSOR (RIGHT REAR OF ENGINE COMPT) FRESH AIR SYSTEM EMERGENCY ACTIVATE BUTTON FRESH AIR SYSTEM/FIRE EXTINGUISHING SYSTEM EMERGENCY ACTIVATE BUTTON FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR ENGINE COMPT) GRN WIRE GRN/WHT WIRE GRY/BLU WIRE NCA WIRE PAS (GAS), SPECIAL SIGNAL SYSTEM CONTROL MODULE (LEFT FRONT OF TRUNK) RED WIRE RED/BLK WIRE SPECIAL VEHICLE MULTIFUNCTION CONTROL MODULE (SVMCM (MSS)) SYSTEM SWITCH VIO WIRE VIO/RED WIRE W/O MEDIUM RESERVOIR SOLENOID VALVE W/ MEDIUM RESERVOIR SOLENOID VALVE WINDSHIELD WASHER FLUID PUMP (RIGHT FRONT OF ENGINE COMPT)

2 3 4 5 DATA - DATA + 2 4 1 AUTHORITIES PERIPHERALS SEPARATION POINT 30 30 30 31 31 (+) (-) BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/WHT WIRE FIRE EXTINGUISHING CONTROL MODULE FUSE 10 GRN WIRE GRN/RED WIRE GRY/BLU WIRE HOT AT ALL TIMES INTERIOR SPEAKER LEFT OUTSIDE MIRROR MICROPHONE LEFT REAR FOOTWELL MIKRO + MIKRO + MIKRO - NCA WIRE ORG/ WIRE OUTSIDE SPEAKER PAS (GAS), SPECIAL SIGNAL SYSTEM CONTROL MODULE (LEFT FRONT OF TRUNK) REAR FUSE BOX 1 RED WIRE RED/GRN WIRE RED/WHT WIRE RIGHT OUTSIDE MIRROR MICROPHONE WHT WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

BLK WIRE BLK/GRY WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLUE LIGHT SEPARATION POINT BRN WIRE BRN/BLK WIRE BRN/WHT WIRE FRESH AIR SYSTEM EMERGENCY ACTIVE BUTTON GRN WIRE GRN/RED WIRE GRY/BLU WIRE LEFT KNEE BOLSTER EMERGENCY ALARM ACTIVE BUTTON LEFT REAR FOOTWELL MICROPHONE SEPARATION POINT NCA WIRE ORG/ WIRE OVER VOLTAGE PROTECTION DIODE POLICE BEACON SEPARATION POINT REAR FRESH AIR OUTLET EMERGENCY ALARM ACTIVE BUTTON RED WIRE RED/WHT WIRE RIGHT KNEE BOLSTER EMERGENCY ALARM ACTIVE BUTTON SPECIAL SIGNAL SYSTEM PUSH BUTTON CONTROL MODULE SPECIAL VEHICLE MULTI-FUNCTION CONTROL MODULE (SVMCM (MSS)) WHT WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

1 2 NTC + NTC - 1 3 1 3 GND LSP- LSP+ GND 31 30 CAN-E H CAN-E L ALDW - BACK, SBS OFF BUTTON BEAM SWITCH BLK WIRE BLU WIRE BLU/YEL WIRE BRN WIRE COMBINATION SWITCH COMPUTER DATA LINES SYSTEM CONTROL CONTACT SWITCH CRUISE CONTROL SWITCH DECELERATE, SET SWITCH RESUME FROM MEMORY SWITCH ACCELERATE, SET SWITCH DTR DISTANCE POTENTIOMETER (IF EQUIPPED) FANFARE HORNS PUSHBUTTON FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT (TOP OF STEERING COLUMN) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR ENGINE COMPT) GEAR SELECTOR SWITCH DIRECT SELECT GRN WIRE GRN/WHT WIRE HEATER COIL TEMPERATURE SENSOR HOT AT ALL TIMES FUSE LEFT MULTI-FUNCTION STEERING WHEEL PUSHBUTTON GROUP LEFT, RIGHT TURN SIGNAL SWITCH HEAD LAMP FLASHER/HIGH BEAM SWITCH LOW MUTE BUTTON NCA WIRE NTC- OFF SWITCH OK BUTTON PNK/BLU WIRE RED WIRE RED/BLK WIRE RIGHT MULTI-FUNCTION STEERING WHEEL PUSHBUTTON GROUP SCROLL FORWARD/ BACK PUSHBUTTON STEERING COLUMN ADJUSTMENT SWITCH STEERING COLUMN MODULE (TOP OF STEERING COLUMN) STEERING LOCK SWITCH STEERING WHEEL ELECTRONICS STEERING WHEEL GEAR SHIFTER (+) (IF EQUIPPED) STEERING WHEEL VIBRATION MOTOR (W/ AUTOMATIC LANE RECOGNITION) SUPPLEMENTAL RESTRAINTS SYSTEM SYSTEM SELECTION PUSHBUTTON VCS (SBS) ON BUTTON VIO WIRE VIO/GRN WIRE WHT WIRE WINDSHIELD WASHER SYSTEM SWITCH WIPE SWITCH YEL WIRE