Mercedes-Benz C-class W204/S204 (2006-2011) (right side of trunk) Wiring diagrams

12 13 17 18 CAN E L CAN E H CAN B L CAN B H 2 3 1 31 LIN 1 30 30 31 5 19 CAN-B H CAN-B L EWD 4 3 2 1 S_GB 30 6 5 4 3 2 1 ASS OFF ASS LED 31 6 5 4 3 2 1 OFF INTERIOR PROTECTION SWITCH ALARM SIREN (W/ ANTI-THEFT ALARM SYSTEM) (REAR OF RIGHT FRONT WHEELWELL) ANTI-THEFT ALARM SYSTEM INDICATOR LAMP INSTRUMENT PANEL SWITCH GROUP BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/PNK WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/RED WIRE CAN B L CAN B H CAN-B H CAN-B L COMPUTER DATA LINES SYSTEM DISPLAY EMERGENCY CALL SYSTEM CONTROL UNIT (CENTER FRONT OF TRUNK) ENGINE HOOD ANTI-THEFT ALARM SYSTEM SWITCH (W/ ANTI-THEFT ALARM SYSTEM) FAN RELAY MODULE FRONT ELECTRICAL PREFUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FUSE 105 FUSE 17 FUSE 18 FUSE 46 FUSE 89 FUSE 90 GRN WIRE GRN/WHT WIRE GRY/YEL WIRE HORNS SYSTEM HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INFO INFO LED INSTRUMENT CLUSTER INTERIOR PROTECTION RECEIVER INTERIOR PROTECTION, TOW-AWAY PROTECTION CONTROL UNIT (IF EQUIPPED) IRS LED IRS-OFF LEFT INTERIOR PROTECTION TRANSMITTER LEFT REAR WINDOW GLASS BREAKAGE SENSOR NCA WIRE OF TRUNK) OFF TOWING SENSOR BUTTON 8 7 6 4 3 2 SOS LED WS LED INFO LED WS INFO SOS REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) REAR WINDOW GLASS BREAKAGE SENSOR RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRY WIRE RIGHT INTERIOR PROTECTION TRANSMITTER RIGHT REAR WINDOW GLASS BREAKAGE SENSOR SOS SOS LED W/ MODEL CODE 204.2 WHT WIRE WS LED YEL WIRE YEL/RED WIRE YEL/VIO WIRE

10 9 CAN B L CAN B H 21 22 RFL-R RFL-L 6 7 CAN C L CAN C H BACKUP CAMERA VOLTAGE SUPPLY MODULE BACKUP LAMP BACKUP LAMP SWITCH (M/T) (ON RIGHT REAR OF TRANSMISSION) BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B L CAN B H COMPUTER DATA LINES SYSTEM ELECTRONIC SELECTOR LEVER MODULE CONTROL MODULE (A/T) (UNDER CENTER CONSOLE) FRONT FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 106 ELECTRICAL PREFUSE BOX (AT RIGHT REAR OF ENGINE COMPT) GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT COMPUTER DATA LINES SYSTEM REAR LAMP BACKUP UNIT LAMP MODEL CODE 204.0 MODEL CODE 204.2 REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) RED WIRE RFL (+) RIGHT REAR LAMP UNIT WHT WIRE YEL WIRE

41 54 10 37 23 50 11 CAN-E H CAN-E L 43 39 64 88 75 74 (+) SV IPM ACCEL SET/ ACCELERATOR PEDAL SENSOR (TOP OF ACCELERATOR BLK/GRN WIRE BLK/PNK WIRE BLU WIRE BLU/BRN WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE BRN/YEL WIRE CAN C H CAN C L CAN E H CAN E H CAN E L CAN E L CAN H H CAN H L SV_HIGH SV_LOW SH_HIGH SH_LOW 31 COMPUTER CAN H H CAN H L 31 DATA LINES 5 6 SYSTEM COMPUTER DATA LINES SYSTEM CRUISE CONTROL LEVER DATA DCM DCP DEC DECEL DISTRONIC CONTROL (IF EQUIPPED) DISTRONIC CONTROL UNIT DISTRONIC ELECTRIC CONTROLLER UNIT DISTRONIC RADAR SENSOR FRONT BUMPER LEFT INNER RADAR SENSOR FRONT BUMPER RIGHT INNER RADAR SENSOR (DISTRONIC PLUS) FRONT BUMPER RIGHT OUTER RADAR SENSOR (DISTRONIC PLUS) FUSE 13 FUSE 79 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES IND INSTRUMENT PANEL PARKTRONIC WARNING INDICATOR (W/ CITY ASSIST SYSTEM) ME-SFI (ME) CONTROL MODULE (TOP CENTER OF ENGINE) NCA WIRE OFF ORG/ WIRE OUTPUT SHAFT RPM SENSOR FULLY INTEGRATED TRANSMISSION CONTROL UNIT PEDAL ASSEMBLY) PNK/BLK WIRE PNK/BLU WIRE PNK/GRN WIRE PNK/GRY WIRE PNK/RED WIRE PNK/VIO WIRE RADAR SENSORS CONTROL UNIT REAR BUMPER FRONT BUMPER RIGHT OUTER LEFT OUTER RADAR SENSOR RADAR SENSOR REAR BUMPER LEFT INNER RADAR SENSOR (BLIND SPOT ASSIST) REAR BUMPER LEFT OUTER RADAR SENSOR (BLIND SPOT ASSIST) REAR BUMPER RIGHT INNER RADAR SENSOR REAR PARKTRONIC WARNING INDICATOR (W/ CITY ASSIST SYSTEM) RED WIRE RED/BLK WIRE RED/BLU WIRE RES+ RESUME SET- STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) THROTTLE VALVE ACTUATOR (IN AIR INTAKE MANIFOLD) VIO WIRE VIO/GRN WIRE VIO/WHT WIRE VIO/YEL WIRE

1 2 CAN-E L CAN-E H 2 8 1 10 58 58 54 SL R 27 16 15 23 2 BSL R BSL R 31 30 CAN B L CAN B H 31 LIN 2 6 7 CAN B L CAN B H BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE BSL L COMBINATION SWITCH COMPUTER DATA LINES SYSTEM FOG LAMP FRONT ELECTRICAL PREFUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FUSE 89 FUSE 90 GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE GRY/VIO WIRE GRY/YEL WIRE HEADLAMP FLASHER/ HIGH BEAM SWITCH HOT AT ALL TIMES LEFT LICENSE PLATE LAMP CENTER STOP LAMP LEFT REAR LAMP UNIT MODEL CODE 204.0 MODEL CODE 204.2 NSL-R PNK BSL-L WIRE PNK SL L WIRE PNK/RED WIRE RAIN/LIGHT SENSOR (W/ RAIN/LIGHT REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) RED WIRE RIGHT LICENSE PLATE LAMP RIGHT REAR LAMP UNIT SENSOR) (TOP CENTER OF WINDSHIELD) SL L STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) STOP/ INNER SIDE MARKER LAMP TURN SIGNAL LAMP TAIL/ STOP/ PARK TAIL LAMP LAMP TURN SIGNAL LAMPS SWITCH VIO WIRE VIO/BLU WIRE WHT WIRE YEL WIRE

BATTERY SENSOR, ON BOARD ELECTRICAL SYSTEM BATTERY BLK WIRE BRN WIRE WHT WIRE

31 30 7 34 8 CAN B L CAN B H TG R 40 41 CAN C L CAN C H 41 54 CAN E H CAN E L 6 7 CAN C L CAN C H 7 6 24 5 GSS, BF RETURN LINE SBE GSS, FA 74 75 CAN-E L CAN-E H ACOUSTIC TURN SIGNAL LIGHT FUNCTION CHECK ANTI-LOCK BRAKE SYSTEM INDICATOR LAMP AREA) BBV HL BBV HR BFS BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/WHT WIRE BRAKE FLUID LEVEL SWITCH (IN BRAKE FLUID RESERVOIR) BRAKE FLUID, PARKING BRAKE WARNING LAMP (EXCEPT USA) BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B L CAN B H CAN E H CAN E L CAN-E L CAN-E H COMPUTER DATA LINES SYSTEM CONSOLE) COOLANT TEMPERATURE GAUGE DRIVER SEAT BELT BUCKLE RESTRAINT SYSTEMS SWITCH (IN DRIVER'S SEAT BELT BUCKLE) ELECTRONIC SELECTOR LEVER MODULE CONTROL MODULE (UNDER CENTER ELECTRONIC STABILITY PROGRAM WARNING LAMP ELECTRONIC TRANSMISSION CONTROL UNIT ENGINE COOLANT TEMPERATURE MALFUNCTION INDICATOR ENGINE DIAGNOSIS MALFUNCTION INDICATOR LAMP FRONT PASSENGER SEAT OCCUPIED RECOGNITION (W/ SEAT BELT REMINDER WARNING) FUEL LEVEL INDICATOR FUEL RESERVE INDICATOR LAMP FUSE 28 GEAR DISPLAY (PRND) GRN WIRE GRN/WHT WIRE GRY/GRN WIRE HIGH BEAM INDICATOR LAMP INSTRUMENT CLUSTER INSTRUMENT ILLUMINATION INSTRUMENT ILLUMINATION BRIGHTNESS CONTROL LEFT FUEL LEVEL INDICATOR SENSOR (IN FUEL TANK) LEFT TURN SIGNAL IND LAMP ME-SFI (ME) CONTROL MODULE (TOP CENTER OF ENGINE) MULTI-FUNCTION DISPLAY NCA WIRE PARKING BRAKE INDICATOR SWITCH (ON PARKING BRAKE SUPPORT BRACKET) REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO RED/GRY WIRE RED/YEL WIRE RIGHT FRONT BRAKE WEAR SENSOR (AT RIGHT FRONT BRAKE ASSEMBLY) RIGHT FUEL LEVEL INDICATOR SENSOR (IN FUEL TANK) RIGHT REAR BRAKE PAD WEAR SENSOR (AT RIGHT REAR BRAKE ASSEMBLY) RIGHT TURN SIGNAL IND LAMP SEAT BELT REMINDER LAMP SERVICE BRAKE INDICATOR LAMP (USA) SIG SPEEDOMETER SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT (UNDER FRONT OF CENTER CONSOLE) SUPPLEMENTAL RESTRAINT SYSTEM INDICATOR LAMP TACHOMETER, BRIGHTNESS SENSOR TG L TIRE PRESSURE MONITOR WARNING LAMP (IF EQUIPPED) TRANSMISSION MODE DISPLAY VIO/GRN WIRE WARNING BUZZER YEL WIRE YEL/RED WIRE

1 2 CAN-B H CAN-B L 2 HS AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLK WIRE BRN WIRE BRN/RED WIRE CAN B L CAN B H COMPUTER DATA LINES SYSTEM FUSE FUSE 106 HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) REAR WINDOW ANTENNA AMPLIFIER 1 (IF EQUIPPED) (CENTER REAR OF ROOF) REAR WINDOW DEFROSTER RELAY REAR WINDOW HEATER REAR WINDOW HEATER BUTTON REAR WINDOW INTERFERENCE SUPPRESSION CAPACITOR 1 REAR WINDOW INTERFERENCE SUPPRESSION CAPACITOR 2 RED WIRE VIO/WHT WIRE W/ MODEL CODE 204.0 W/ MODEL CODE 204.2

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

1 2 3 4 5 6 7 8 CAN B H 31 1 2 3 4 5 6 RFL 1 2 3 4 LED AHK 31 AHK 15 GND BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN B L 15 54 FUSE 54 FUSE 53 FUSE 56 FUSE 57 GRN WIRE GRY WIRE GRY/YEL WIRE HOT W/ CIRCUIT 15 RELAY ENERGIZED HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED PNK/RED WIRE RED WIRE RED/GRN WIRE RED/YEL WIRE TRAILER HITCH LOCKING MECHANISM TRAILER HITCH LOCKING SWITCH TRAILER RECOGNITION CONTROL MODULE TRAILER SOCKET (RIGHT SIDE (7-PIN) OF TRUNK) WHT WIRE