Mercedes-Benz C-class W204/S204/С204 facelift (2011-2015) (right side of trunk) Wiring diagrams

2 1 4 CAN B H CAN B L 31 2 1 CAN-B H CAN-B L AMBIENT LAMP RIGHT LEFT READING LAMP READING LAMP BLK WIRE BLK/VIO WIRE BLU WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM FLAT WIRE FRONT ELECTRICAL PREFUSE BOX (RIGHT REAR OF ENGINE COMPT) FUSE FUSE 152 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY INSIDE REARVIEW MIRROR LEFT FRONT DOOR HANDLE ILLUMINATION (W/ INTERIOR LIGHTS PACKAGE) LEFT FRONT DOOR HANDLE RECESS ILLUMINATION LEFT LUGGAGE COMPARTMENT LAMP (GLK-CLASS) LEFT REAR DOOR HANDLE ILLUMINATION (W/ INTERIOR LIGHTS PACKAGE) LEFT REAR DOOR HANDLE RECESS ILLUMINATION LEFT TAILGATE AMBIENT LAMP, WARNING LAMP PNK 8 9 WIRE PNK WIRE RED WIRE RIGHT FRONT DOOR HANDLE ILLUMINATION (W/ INTERIOR LIGHTS PACKAGE) RIGHT FRONT DOOR HANDLE RECESS ILLUMINATION RIGHT LUGGAGE COMPARTMENT LAMP RIGHT REAR DOOR HANDLE ILLUMINATION (W/ INTERIOR LIGHTS PACKAGE) RIGHT REAR DOOR HANDLE RECESS ILLUMINATION TAILGATE EXTERNAL OPERATION SWITCH VIO WIRE W/O ECO START/STOP FUNCTION YEL WIRE

16 15 23 2 BSL R 24 22 21 NSL-L RFL-L RFL-R 31 30 CAN B L CAN B H 31 LIN 2 4 1 2 30 CAN E L CAN E H 58 58 54 SL R 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 BACKUP BACKUP LAMP LAMP LAMP FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 13 FUSE 164 GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE GRY/VIO WIRE GRY/YEL WIRE HEADLAMP FLASHER/ HIGH BEAM SWITCH HOT AT ALL TIMES INNER STOP/ TAIL LAMP INNER TURN SIGNAL LAMP TAIL/ STOP/ PARKING TAIL LAMP LAMP LEFT LICENSE PLATE LAMP CENTER STOP LAMP LEFT REAR LAMP UNIT NSL-R PNK SL L WIRE PNK WIRE PNK/RED WIRE RAIN/LIGHT SENSOR (W/ RAIN/LIGHT SENSOR) REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (RIGHT SIDE OF TRUNK) RED WIRE RED/BLU WIRE RIGHT LICENSE PLATE LAMP RIGHT REAR LAMP UNIT SIDE MARKER LAMP SIDE MARKER LAMP FOG LAMP STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) STOP STOP/ TURN SIGNAL LAMP TAIL/ PARKING LAMP TURN SIGNAL LAMPS SWITCH VIO WIRE VIO/BLU WIRE W/O ECO START/STOP FUNCTION W/ ECO START/STOP FUNCTION WHT WIRE YEL WIRE

3 2 CAN-C H CAN-C L 30 31 CAN-B H CAN-B L 4 3 2 1 30 31 CAN E H CAN E L 5 7 LWR BLK/BLU WIRE BLK/PNK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE COMBINATION SWITCH COMPT) COMPUTER DATA LINES SYSTEM EXTERIOR LIGHTS SWITCH FRONT ELECTRICAL PREFUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FRONT FOG LAMP BUTTON FRONT FOG LAMP IND LAMP FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE FUSE 13 FUSE 29 FUSE 30 FUSE 5 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/PNK WIRE HEADLAMP FLASHER/ HIGH BEAM SWITCH HEADLAMP RANGE ADJUSTMENT ACTUATOR MOTOR HEADLAMP RANGE CONTROLLER (W/ HEADLAMP RANGE ADJUSTMENT FOR HALOGEN HEADLAMPS) HIGH BEAM IND LAMP HIGH BEAM LOW BEAM HEADLAMP RANGE ADJUSTMENT ACTUATOR MOTOR HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER LEFT DAYTIME RUNNING LAMPS HEADLAMP (IF EQUIPPED) LEFT HIGH BEAM FOG LAMP (IF EQUI- PPED) LEFT REAR LAMP UNIT LEFT RIGHT FOG FRONT LAMP UNIT LAMP (IF EQUI- PPED) LOW BEAM LOW BEAM IND LAMP LOW BEAM SWITCH LWR LWR 31 MODULE CONTROL UNIT PARKING BRAKE INDICATOR SWITCH (ON PARKING BRAKE SUPPORT BRACKET) PNK/RED WIRE REAR FOG LAMP REAR FOG LAMP BUTTON REAR FOG LAMP IND LAMP 12 13 17 18 CAN E L CAN E H CAN B L CAN B H RED WIRE RED/BLU WIRE RED/WHT WIRE RIGHT DAYTIME RUNNING LAMPS HEADLAMP (IF EQUIPPED) RIGHT FRONT LAMP UNIT RIGHT REAR LAMP UNIT SIG SWITCH ILLUMINATION W/ ECO START/STOP FUNCTION W/ HEADLAMP RANGE ADJUSTMENT FOR HALOGEN HEADLAMPS W/O ECO START/STOP FUNCTION WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

12 13 17 18 CAN E L CAN E H CAN B L CAN B H 30 31 CAN E H CAN E L ABBL-R 31 15 ABBL-L BLK/BLU WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L COMBINATION SWITCH COMPUTER DATA LINES SYSTEM FRONT ELECTRICAL PREFUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FRONT FOG LAMPS INDICATOR LAMP FUSE GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRN/YEL WIRE HEADLAMP CONTROL UNIT HEADLAMP FLASHER/ HIGH BEAM SWITCH HIGH BEAM INDICATOR HOT AT ALL TIMES ILLUMINATION INSTRUMENT CLUSTER LEFT ACTIVE CURVE ILLUMINATION ACTUATOR MOTOR LEFT ACTIVE CURVE ILLUMINATION POSITION SENSOR LEFT CORNERING LEFT FRONT LAMP UNIT LEFT HEADLAMP RANGE ADJUSTMENT ACTUATOR MOTOR LEFT LIGHT DISTRIBUTION ACTUATOR MOTOR LEFT LIGHT DISTRIBUTION POSITION SENSOR LEFT REAR LAMP UNIT LEFT XENON BULB W/ INTEGRATED IGNITION MODULE LEFT XENON LIGHT POWER SUPPLY MODULE (BEHIND LEFT SIDE OF FRONT BUMPER) LOW BEAM INDICATOR LAMP LOW BEAM SWITCH PNK/WHT WIRE REAR FOG LAMP REAR FOG LAMP INDICATOR RED WIRE RED/BLU WIRE RIGHT DAYTIME RUNNING LAMPS HEADLAMPS (IF EQUIPPED) RIGHT REAR LAMP UNIT SIG SIG 31 31 CAN G L CAN G H STEERING COLUMN MODULE CONTROL UNIT W/O ECO START/STOP FUNCTION WHT/BLU WIRE WHT/RED WIRE WHT/YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

31 30 7 34 8 CAN B L CAN B H TG R 6 7 CAN C L CAN C H ATA (EDW) FUNCTION INDICATOR AUTOMATIC CHILD SEAT RECOGNITION AIR BAG OFF INDICATOR LAMP BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/WHT WIRE BRAKE FLUID LEVEL SWITCH (IN BRAKE FLUID RESERVOIR) BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DOWNHILL SPEED REGULATION BUTTON (GLK CLASS) ECO START/ STOP FUNCTION BUTTON ELECTRONIC SELECTOR LEVER MODULE CONTROL MODULE (C-CLASS: UNDER CENTER CONSOLE) GRY/YEL WIRE HAZARD WARNING SYSTEM BUTTON LEFT FRONT HEATED SEAT BUTTON LEFT FRONT SEAT VENTILATION BUTTON LEFT FUEL LEVEL INDICATOR SENSOR (IN FUEL TANK) LIN 1 NCA WIRE OFFROAD PROGRAM BUTTON (GLK CLASS) PARKING BRAKE INDICATOR SWITCH (PARKING BRAKE SUPPORT BRACKET) PARKING SYSTEM BUTTON REAR HEAD RESTRAINTS BUTTON REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (RIGHT SIDE OF TRUNK/ CARGO AREA) REAR WINDOW ROLLER SUN BLIND BUTTON RED/GRN WIRE RED/GRY WIRE RIGHT FRONT BRAKE PAD WEAR SENSOR (C-CLASS: AT RIGHT FRONT BRAKE ASSEMBLY) RIGHT FRONT HEATED SEAT BUTTON RIGHT FRONT SEAT VENTILATION BUTTON RIGHT FUEL LEVEL INDICATOR SENSOR (IN FUEL TANK) RIGHT REAR BRAKE PAD WEAR SENSOR (AT RIGHT REAR BRAKE ASSEMBLY) STATIONARY HEATER BUTTON TG L UPPER CONTROL PANEL CONTROL UNIT VEHICLE DYNAMICS BUTTON YEL/RED WIRE

1 2 3 4 5 6 IRS OFF IRS LED 11 9 CAN-B H CAN-B L 2 7 8 1 SHIELD MIC 2 GND MIC 1 30 S GB 31 ASS LED ASS OFF 9 10 CAN-B L CAN-B H AMBIENT LAMP AUTOMATIC DIMMING MIRROR BLK WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CENTER INTERIOR ROOF) COMPASS MODULE W/ DISPLAY COMPUTER DATA LINES SYSTEM FORWARD AUTOMATIC DIMMING MIRROR LIGHT SENSOR FUSE 46 GARAGE DOOR OPENER GARAGE DOOR OPENER BUTTON 1 GARAGE DOOR OPENER BUTTON 2 GARAGE DOOR OPENER BUTTON 3 GARAGE DOOR OPENER INDICATOR LAMP GRN WIRE GRY WIRE HANDS-FREE SYSTEM MICROPHONE HOT AT ALL TIMES INSIDE REARVIEW MIRROR LEFT READING LAMP LEFT REAR WINDOW GLASS BREAKAGE SENSOR NCA WIRE ORG/ WIRE PNK 17 18 WIRE PNK WIRE RADIO (W/ AUDIO 20) COMAND CONTROL UNIT (W/O AUDIO 20) REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE REAR WINDOW GLASS BREAKAGE SENSOR REARWARD COMPASS DISPLAY BUTTON AUTOMATIC DIMMING MIRROR LIGHT SENSOR RED WIRE RIGHT READING LAMP RIGHT REAR WINDOW GLASS BREAKAGE SENSOR WHT WIRE YEL WIRE

1 2 3 4 5 6 IRS OFF IRS LED 11 9 CAN-B H CAN-B L 2 7 8 1 SHIELD MIC 2 GND MIC 1 31 ASS LED ASS OFF AUTOMATIC DIMMING MIRROR BLK WIRE BLU WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE CAN B L CAN B H COMPASS DISPLAY BUTTON COMPASS MODULE W/ COMPUTER DATA LINES SYSTEM DISPLAY (IF EQUIPPED) FORWARD AUTOMATIC DIMMING MIRROR LIGHT SENSOR FUSE 46 GARAGE DOOR OPENER GARAGE DOOR OPENER BUTTON 1 GARAGE DOOR OPENER BUTTON 2 GARAGE DOOR OPENER BUTTON 3 GARAGE DOOR OPENER INDICATOR LAMP GRN WIRE GRY WIRE GRY/RED WIRE GRY/YEL WIRE HANDS-FREE SYSTEM MICROPHONE HOT AT ALL TIMES INSIDE REARVIEW MIRROR LEFT INTERIOR PROTECTION TRANSMITTER LEFT READING LAMP NCA WIRE ORG/ WIRE PNK 14 15 WIRE PNK WIRE RADIO (W/ AUDIO 20) COMAND CONTROL UNIT (W/O AUDIO 20) REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE REARWARD AUTOMATIC DIMMING MIRROR LIGHT SENSOR RED WIRE RIGHT AMBIENT READING LAMP LAMP WHT WIRE YEL WIRE

1 3 30 LIN 1 2 4 3 31 (+) (-) 31 30 CAN B L CAN B H BRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 12 GRN WIRE GRY WIRE GRY/YEL WIRE HOT AT ALL TIMES LIN 1 REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (RIGHT SIDE OF TRUNK/CARGO AREA) REAR WINDOW ROLLER SUN BLIND BUTTON REAR WINDOW ROLLER SUN BLIND MOTOR (CENTER OF HAT SHELF) RED WIRE RED/GRN WIRE UPPER CONTROL PANEL CONTROL UNIT W/O ECO START/ STOP BUTTON W/ ECO START/ STOP BUTTON WHT WIRE YEL WIRE

1 2 3 4 5 6 7 8 THERMAL FUSE ANT BLU WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE CAN B H CAN B L COMBUSTION AIR BLOWER TEMPERATURE SENSOR COMPUTER DATA LINES SYSTEM FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 18 FUSE 73 FUSE 75 GLOW PLUG FLAME MONITOR FUEL PREHEATING SYSTEM HEATING ELEMENT GRN/YEL WIRE GRY/YEL WIRE HOT AT ALL TIMES LIN 1 MULTI-FUNCTION ANTENNA NCA NCA WIRE NCA WIRE REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (RIGHT SIDE OF TRUNK) RED/GRN WIRE RED/ORG WIRE STATIONARY HEATER BUTTON STATIONARY HEATER FUEL PUMP STATIONARY HEATER SWITCHOVER VALVE STATIONARY HEATER UNIT (C-CLASS: LEFT FRONT WHEELWELL) STH SWITCHOVER VALVE HEATER CONTROL UNIT TEL UPPER CONTROL PANEL CONTROL UNIT W/ MOBILE PHONE PREINSTALLATION W/ UNIVERSAL INTERFACE W/O MOBILE PHONE PREINSTALLATION W/ UNIVERSAL INTERFACE W/O XENON HEADLAMPS W/ XENON HEADLAMPS

-1 +2 1 2 3 4 5 6 7 8 9 10 GND GND 1-2, 3-4, 5-6, 7-8) 4 2 1 5 31 CAN B H CAN B L 30 BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L CAN B L CAN B H COMPUTER DATA LINES SYSTEM FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 2 FUSE 61 GND SIG GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/PNK WIRE HFE HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT FRONT DOOR CONTROL UNIT (FRONT OF LEFT FRONT DOOR) NCA WIRE ORG/ WIRE ORG/GRN WIRE REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (RIGHT SIDE OF TRUNK) RED/WHT WIRE RED/YEL WIRE RIGHT TAILGATE CONTROL OBSTRUCTION SENSOR STRIP (RIGHT SIDE OF TAILGATE) SIG SIG SIG TAILGATE CENTRAL LOCKING MOTOR TAILGATE CONTROL BUTTON (W/ AUTOMATIC TAILGATE, KEYLESS GO SYSTEM) TAILGATE CONTROL DRIVE UNIT TAILGATE CONTROL MAGNETIC CLUTCH TAILGATE CONTROL POSITION SENSOR TAILGATE CONTROL TAILGATE ELECTRIC CONTROL MOTOR HALL SENSOR TAILGATE CONTROL UNIT (GLK-CLASS) TAILGATE CONTROL WARNING BUZZER (BOTTOM OF TAILGATE) TAILGATE EXTERNAL OPERATION SWITCH TAILGATE LOCKING ELEMENT (GLK-CLASS) TRUNK LID EMERGENCY OPENING SWITCH (TRUNK LID) W/ AUTOMATIC TAILGATE W/O AUTOMATIC TAILGATE WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE