Mercedes-Benz C-class W204/S204 (2006-2011) blk/red Wiring diagrams

ABS IND. BLK WIRE BLK/RED WIRE BLS_H BLS_L BLS_M BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/WHT WIRE BRAKE FLUID, PARKING BRAKE WARNING IND BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/VIO WIRE CAN E H CAN E H CAN E L CAN E L CAN H H CAN H L COMPUTER DATA LINES SYSTEM DF HR M DF HR S DF VL S DF VL M 31 ECO 31 ELECTRONIC STABILITY PROGRAM CONTROL UNIT (LEFT FRONT OF ENGINE COMPT) ESP WARNING LAMP IND FRONT AXLE BRAKE PRESSURE SENSOR FRONT AXLE SWITCH OVER VALVE FRONT PRESSURE SENSOR FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 20 FUSE 1 FUSE 14 FUSE 21 GRN WIRE GRN/WHT WIRE GRN/YEL WIRE HIGH PRESSURE, RETURN PUMP MOTOR HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT CLUSTER LEFT FRONT AXLE RPM SENSOR (ON LEFT FRONT STEERING KNUCKLE ASSEMBLY) LEFT FRONT PRESSURE REGULATOR VALVE (HOLD) LEFT FRONT PRESSURE REGULATOR VALVE (RELEASE) LEFT REAR AXLE RPM SENSOR (ON LEFT REAR WHEEL HUB ASSEMBLY) LEFT REAR PRESSURE REGULATOR VALVE (HOLD) LEFT REAR PRESSURE REGULATOR VALVE (RELEASE) NCA WIRE PML 30 DF VR M DF VR S BLA DF HL S DF HL M PNK/BLU WIRE PNK/GRN WIRE PNK/WHT WIRE REAR PRESSURE SENSOR REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RIGHT FRONT AXLE RPM SENSOR (ON RIGHT FRONT STEERING KNUCKLE ASSEMBLY) RIGHT FRONT PRESSURE REGULATOR VALVE (HOLD) RIGHT FRONT PRESSURE REGULATOR VALVE (RELEASE) RIGHT REAR AXLE RPM SENSOR (ON RIGHT REAR WHEEL HUB ASSEMBLY) RIGHT REAR PRESSURE REGULATOR VALVE (HOLD) RIGHT REAR PRESSURE REGULATOR VALVE (RELEASE) TAXIMETER ELECTRICAL CONNECTOR TRACTION SYSTEM HYDRAULIC UNIT VIO WIRE VIO/WHT WIRE WHT GRN/ WIRE WHT WIRE YAW RATE, LATERAL, LONGITUDINAL ACCELERATION SENSOR (UNDER DRIVER'S SEAT)

1 2 3 4 31 30 GND DATA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CAN B H CAN B L AIR RECIRCULATION MODE BUTTON AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE COMBUSTION ENGINE, A/C WITH INTEGRATED CONTROL FAN MOTOR COMPUTER DATA LINES SYSTEM ENGINE CONTROLS SYSTEM FUSE 105 FUSE 119 GND (-) 31 GRN/BLU WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INTERIOR FUSE BOX (BEHIND LEFT END OF DASH) LUES PURGE CONTROL VALVE REAR BLOWER MOTOR REAR WINDOW HEATER BUTTON RED WIRE RED/BLK WIRE RED/VIO WIRE REG SIG NTC DATA FOND GND DATA MRM THS TMOT VIO/WHT WIRE

BLK/RED WIRE BLU/BLK WIRE BLU/GRN WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE COOLANT THERMOSTAT DATA FRONT SAM CONTROL UNIT W/ FUSE, RELAY FUSE FUSE 12 GRY/BLK WIRE GRY/BLU WIRE HOT W/ ENGINE CIRCUIT 87 RELAY ENERGIZED INTERIOR TEMPERATURE SENSOR (IN DASH, RIGHT OF STEERING COLUMN) INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT CENTER AIR OUTLET SYMBOL ILLUMINATION LEFT FRONT SIDE AIR OUTLET SYMBOL ILLUMINATION MODULE (LEFT REAR OF ENGINE COMPT) NCA WIRE NTC- OVERHEAD CONTROL PANEL ELECTRONICS (W/ OVERHEAD CONTROL PANEL W/O CAN) REAR AIR OUTLET SYMBOL ILLUMINATION REAR AUTOMATIC AIR CONDITIONING OPERATING UNIT RED WIRE RED/BLK WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE REFRIGERANT COMPRESSOR REFRIGERANT PRESSURE SENSOR (AT BOTTOM LEFT SIDE OF RADIATOR CONDENSER) RIGHT CENTER AIR OUTLET SYMBOL ILLUMINATION RIGHT FRONT SIDE AIR OUTLET SYMBOL ILLUMINATION SOLID STATE VIO/WHT WIRE W/ AIR OUTLET SYMBOL ILLUMINATION

1 2 3 GND NTC BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLU/BLK WIRE BLU/GRN WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE COMBUSTION ENGINE, A/C W/ INTEGRATED CONTROL FAN MOTOR COOLANT CIRCULATION PUMP COOLANT THERMOSTAT EMISSIONS SENSOR ENGINE CONTROLS SYSTEM FRONT SAM CONTROL UNIT W/ FUSE, RELAY FUSE 12 FUSE 22 GRN/BLU WIRE GRY/BLK WIRE GRY/BLU WIRE HOT W/ ENGINE CIRCUIT 87 RELAY ENERGIZED INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT FOOTWELL FLAP ACTUATOR MOTOR LUES MODULE (LEFT REAR OF ENGINE COMPT) OVERHEAD CONTROL PANEL ELECTRONICS PURGE CONTROL VALVE REAR BLEND AIR FLAP ACTUATOR MOTOR RED WIRE RED/BLK WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE REG SIG SOLID STATE THS TMOT VIO/WHT WIRE WHT/GRN WIRE WHT/VIO WIRE WHT/YEL WIRE

45 43 CF 16 66 CM REG LUES BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE CAN-B H CAN-B L COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR (LEFT REAR OF ENGINE) ENGINE CONTROLS SYSTEM FRONT ELECTRICAL PREFUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 91 GRN/BLU WIRE HOT AT ALL TIMES HOT W/ ENGINE CIRCUIT 87 RELAY ENERGIZED FUSE 22 PURGE CONTROL VALVE RED WIRE RED/BLK WIRE RED/YEL WIRE REFRIGERANT PRESSURE SENSOR (AT BOTTOM LEFT SIDE OF RADIATOR CONDENSER) SIG SOLID STATE KHD TMOT VIO/WHT WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 CAN E H CAN E H CAN E L CAN E L 15 GND 31 31 EDW CRASH 6 7 8 9 10 SIG ANTI-LOCK BRAKES SYSTEM ANTI-LOCK BRAKES SYSTEM COMPUTER DATA LINES SYSTEM BBV HR BBV HL CAN B H CAN B L SIG ZV BLK/BLU WIRE BLK/GRY WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/WHT WIRE CAN C H STR EKP CAN C L CAN C L CAN C H EKP CAN D H CAN D L CAN-D H CAN-D L COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM DOOR LOCKS SYSTEM COMPUTER DATA LINES SYSTEM SOUND SYSTEMS SOUND SYSTEMS CRUISE CONTROL SYSTEM DOOR LOCKS SYSTEM ENGINE CONTROLS SYSTEM SOUND SYSTEMS EXTERIOR LIGHTS, ANTI-LOCK BRAKES SYSTEMS FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/PNK WIRE GRY/RED WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM HORNS SYSTEM HORNS SYSTEM HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM WIPER/WASHER SYSTEM HEADLIGHTS, EXTERIOR LIGHTS SYSTEMS INSTRUMENT CLUSTER SYSTEM PNK/BLK WIRE PNK/BLU WIRE PNK/RED WIRE RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SIG SIG SIG SOUND SYSTEMS VIO WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/RED WIRE ZV ZV 31 ZV

30 30 (+) 31 WH (DATA) WH (+) WH (-) 58 SL-L SL-R (+) PNK WIRE 7 8 9 10 11 12 13 (+) ANST ANTI-THEFT SYSTEM SOUND SYSTEMS BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/PNK WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/RED WIRE BRN/YEL WIRE BSL-R BSL-L ZV CAN B L CAN B H (+) (+) SIG LIN CAN-B H CAN-B L COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DEFOGGER SYSTEM DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM ENGINE CONTROLS SYSTEM ANTI-THEFT SYSTEM EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM FUSE GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/PNK WIRE GRY/VIO WIRE GRY/YEL WIRE HFE HFE SIG SIG SIG HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER SYSTEM POWER DISTRIBUTION SYSTEM INSTRUMENT CLUSTER, ANTI-THEFT SYSTEMS INSTRUMENT CLUSTER, ANTI-THEFT SYSTEMS INSTRUMENT CLUSTER, ANTI-THEFT SYSTEMS INSTRUMENT CLUSTER, ENGINE CONTROLS SYSTEMS INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM PNK BSL-L BSL-R SIG WIRE PNK/RED WIRE POWER DISTRIBUTION SYSTEM REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RFL-R RFL-L NSL-R NSL-L RSS EIN RSS AUS SEATS SYSTEM SIG SIG EDM SIG TG R TG L BLA GSS HR GSS HL SIG GSS HM SIG SIG SIG SIG SIG SIG SIG SOUND SYSTEMS SEATS SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM SYSTEM ANTI-LOCK BRAKES SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM STARTING/CHARGING SYSTEM VIO/BLU WIRE WH (DATA) WH (+) WHT/BLU WIRE WHT/YEL WIRE WIPER/WASHER SYSTEM YEL WIRE ZV ANT

3 4 5 6 7 8 (-) (+) BLK/GRY WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BRN WIRE CRUISE CONTROL SYSTEM DOOR LOCKS SYSTEM GRN WIRE PNK/BLK WIRE PNK/GRN WIRE PNK/RED WIRE PNK/YEL WIRE POWER DISTRIBUTION SYSTEM POWER DISTRIBUTION SYSTEM SEATS SYSTEM REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SEATS SYSTEM SEATS SYSTEM SOUND SYSTEMS WHT WIRE

AAV ACCELERATOR PEDAL SENSOR (TOP OF ACCELERATOR PEDAL ASSEMBLY) ACTIVATED CHARCOAL FILTER SHUTOFF VALVE AIR CONDITIONING SYSTEM BLK/BLU WIRE BLK/GRN WIRE BLK/RED WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAN C L CAN E L CLUTCH PEDAL SWITCH (M/T) COMPUTER DATA LINES SYSTEM CRASH GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/VIO WIRE GRN/YEL WIRE GRY/GRN WIRE GRY/WHT WIRE LUES ME-SFI CONTROL MODULE (TOP CENTER OF ENGINE) NCA WIRE ORG/ WIRE PNK 27 28 29 30 31 32 33 WIRE PNK WIRE PNK/BLK WIRE PURGE CONTROL VALVE RED WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE REFRIGERANT COMPRESSOR REG START ENABLE CLUTCH PEDAL SWITCH (M/T) (TOP OF CLUTCH PEDAL ASSEMBLY) SUPPLEMENTAL RESTRAINTS SYSTEM UPSTREAM OF CATALYTIC CONVERTER (UNDER LEFT FRONT OF VEHICLE, IN EXHAUST) VIO WIRE VIO/BLK WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/YEL 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/BRN WIRE YEL/GRN WIRE YEL/RED WIRE YEL/WHT WIRE

AIR CONDITIONING SYSTEM AIR PUMP SWITCHOVER VALVE BLK/BLU WIRE BLK/RED WIRE BLU WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/VIO WIRE BRN/YEL WIRE DOWNSTREAM OF CATALYTIC CONVERTER (UNDER LEFT FRONT OF VEHICLE, IN EXHAUST) DOWNSTREAM OF CATALYTIC CONVERTER (UNDER RIGHT FRONT OF VEHICLE, IN EXHAUST) ENGINE CIRCUIT 87 RELAY FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPARTMENT) FUSE GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/VIO WIRE GRN/YEL WIRE GRY/GRN WIRE GRY/WHT WIRE HEATING SYSTEM SHUTOFF VALVE HOT AT ALL TIMES INTAKE MANIFOLD SWITCHOVER VALVE INTAKE MANIFOLD TUMBLE FLAP SWITCHOVER VALVE NCA WIRE ORG/ WIRE PNK 21 22 23 WIRE PNK 27 28 29 30 31 32 33 WIRE PNK/BLK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE VIO WIRE VIO/BLK WIRE VIO/BLU 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/RED WIRE