Mercedes-Benz C-class AMG W204/S204/С204 (2007-2011) front sam control unit w/ fuse, relay module (left rear of engine compt) Wiring diagrams

1 2 3 4 5 6 7 8 HR+ VR+ 1 2 3 4 MOST OUT MOST IN 6 4 2 1 PNK WIRE ANST ANT BT SHIELD ANT GPS SHIELD AUDIO/COMAND DISPLAY AUX GND AUX R AUX JACK ELECTRICAL CONNECTOR AUX SHIELD AUX L BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLUETOOTH ANTENNA BRN WIRE BRN/GRN WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN A L CAN A H DIAG (+) CAN B H 31 ON/OFF CAN B L COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM FM, AM, CL ANTENNA AMPLIFIER (CENTER FRONT OF ROOF) FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 26 FUSE 16 GPS GPS 1 GRN WIRE GRN/WHT WIRE GRN/YEL WIRE HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED HR- VR- INSTRUMENT CLUSTER, AUDIO/COMAND DISPLAY FAN MOTOR (UNDER LEFT SIDE OF DASH) LEFT FRONT DOOR BASS SPEAKER LEFT FRONT DOOR SPEAKER (W/O SOUND SYSTEM) LEFT FRONT DOOR TWEETER MOBILE PHONE ELECTRICAL CONNECTOR MULTI-FUNCTION ANTENNA NCA NCA WIRE NCA WIRE ORG/ WIRE ORG/WHT WIRE PNK 1 2 3 4 5 6 7 8 9 10 11 12 MIC 1+ MIC 2+ SHIELD WIRE PNK WIRE RADIO W/ AUTO PILOT SYSTEM REAR WINDOW ANTENNA AMPLIFIER 1 (CENTER REAR OF ROOF) RED WIRE RED/WHT RED WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR BASS SPEAKER RIGHT FRONT DOOR SPEAKER (W/O SOUND SYSTEM) RIGHT FRONT DOOR TWEETER SHIELD SHIELD FM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SOUND SYSTEMS VIO WIRE VL HL VL+ HL+ PNK WIRE VOICE CONTROL SYSTEM MICROPHONE W/ MODEL CODE 204.0 W/ MODEL CODE 204.2 WAKE-UP WHT WIRE WHT/YEL WIRE YEL 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

BRN WIRE BRN/WHT WIRE CAN-D H CAN-D L FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE GRY WIRE GRY/WHT WIRE RED WIRE RED/GRN WIRE

1 2 3 30 31 LIN 1 12 13 17 18 CAN E L CAN E H CAN B L CAN B H 2 1 CAN-E H CAN-E L 2 3 CAN-G H CAN-G L 5 1 LWR LIN 1 BLK/PNK WIRE BRN WIRE BRN/RED WIRE COMBINATION SWITCH COMPUTER DATA LINES SYSTEM EXTERIOR LIGHTS SWITCH FOG LAMP INDICATOR LAMP FRONT ELECTRICAL PREFUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 105 FUSE 18 FUSE 89 GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY/YEL WIRE HEADLAMP FLASHER/ HIGH BEAM SWITCH HEADLAMP RANGE CONTROLLER HIGH BEAM HIGH BEAM INDICATOR HIGH BEAM INDICATOR LAMP HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL SWITCH GROUP LEFT FOG LAMP LEFT FRONT HEADLAMP UNIT LOW BEAM LIN 1 LOW BEAM SWITCH LWR REAR FOG LAMP INDICATOR LAMP RED WIRE RED/GRY WIRE RIGHT FOG LAMP RIGHT FRONT HEADLAMP UNIT HIGH BEAM LOW BEAM STANDING LAMPS INDICATOR STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) SWITCH ILLUMINATION WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

1 2 3 30 31 LIN 1 12 13 17 18 CAN E L CAN E H CAN B L CAN B H 2 1 CAN-E H CAN-E L 2 11 1 31 SIG 2 3 CAN-G H CAN-G L BRN WIRE BRN/RED WIRE COMBINATION SWITCH COMPUTER DATA LINES SYSTEM EXTERIOR LIGHTS SWITCH FOG LAMP INDICATOR LAMP FRONT ELECTRICAL PREFUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 105 FUSE 89 GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY/YEL WIRE HEADLAMP FLASHER/ HIGH BEAM SWITCH HEADLAMP RANGE ADJUSTMENT ACTUATOR MOTOR HIGH BEAM HIGH BEAM INDICATOR HIGH BEAM LAMP HIGH BEAM SOLENOID HOT AT ALL TIMES HOT AT ALL TIMES 9 10 CAN-B H CAN-B L FUSE 18 HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL SWITCH GROUP LEFT FOG LAMP LEFT FRONT HEADLAMP UNIT LEFT FRONT LEVEL SENSOR (IN LEFT FRONT WHELLWELL) LEFT REAR LEVEL SENSOR (IN LEFT REAR WHELLWELL) LEFT XENON LAMP CONTROL UNIT LIN 1 LOW BEAM SWITCH REAR FOG LAMP INDICATOR LAMP RED WIRE RED/GRY WIRE RIGHT FOG LAMP RIGHT FRONT HEADLAMP UNIT RIGHT XENON LAMP CONTROL UNIT SIG CAN-G L CAN-G H STANDING LAMPS INDICATOR LAMP STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) SWITCH ILLUMINATION WHT WIRE WHT/BLK WIRE WHT/RED WIRE XENON BULB W/ INTEGRATED IGNITION MODULE YEL WIRE YEL/WHT WIRE

1 2 CAN-B H CAN-B L 1 5 CAN-B H CAN-B L 11 9 CAN-B H CAN-B L 2 1 CAN-B H CAN-B L 2 3 CAN-B H CAN-B L 3 1 2 31 CAN-B H CAN-B L 30 31 CAN-B H CAN-B L 6 5 CAN-A H CAN-A L 7 5 CAN-B H CAN-B L 7 6 CAN-B H CAN-B L 9 10 CAN-B L CAN-B H BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L CAN C H CAN C L CAN E H CAN E L CAN-D H CAN-D L CAN-G H CAN-G L COMAND CONTROL UNIT DRIVER SEAT CONTROL UNIT EMERGENCY CALL SYSTEM CONTROL UNIT (W/ TELEAID EMERGENCY CALL SYSTEM) (CENTER FRONT OF TRUNK) FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) GRN WIRE GRN/WHT WIRE GRY WIRE GRY/WHT WIRE LEFT FRONT DOOR CONTROL UNIT LEFT REAR DOOR CONTROL UNIT LEFT VEHICLE FLOOR INTERIOR CAN VOLTAGE DISTRIBUTOR ELECTRICAL CONNECTOR OVERHEAD CONTROL PANEL CONTROL MODULE PANORAMIC SLIDING ROOF CONTROL MODULE (LEFT FRONT OF ROOF) RADIO (W/ AUDIO 20 RADIO) RADIO W/ AUTO PILOT SYSTEM (W/ AUDIO 50) REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) RIGHT REAR DOOR CONTROL UNIT TRAILER RECOGNITION CONTROL MODULE W/ AUDIO 20 RADIO, RADIO 50 W/ OVERHEAD CONTROL PANEL W/ CAN W/O AUDIO 20 RADIO, RADIO 50 YEL WIRE YEL/WHT WIRE

1 5 LIN 1 LWR 10 9 CAN B L CAN B H 2 3 CAN-C L CAN-C H 3 4 2 LIN 1 LWR 31 7 6 4 5 12 11 10 9 CAN C H CAN C L AUTOMATIC TRANSMISSION MODE BUTTON BLK/PNK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM ELECTRONIC SELECTOR LEVER MODULE CONTROL MODULE (A/T) (UNDER CENTER CONSOLE) EXTERIOR LIGHTS SWITCH FRONT CIGARETTE LIGHTER W/ ASHTRAY ILLUMINATION (W/ SMOKER PACKAGE) FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FRONT VEHICLE INTERIOR POWER OUTLET (W/O SMOKER PACKAGE) FUSE 16 FUSE 18 FUSE 28 GRN WIRE GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT ILLUMINATION, INSTRUMENT ILLUMINATION BRIGHTNESS CONTROL INSTRUMENT PANEL SWITCH GROUP LIN 1 NCA WIRE RED WIRE RED/BLU WIRE RED/GRY WIRE RED/YEL WIRE SHIFT GATE SYMBOL ILLUMINATION SWITCH ILLUMINATION WHT WIRE YEL WIRE

1 2 3 4 5 6 30 RLS SIG SIG SIG SIG GND 1 2 3 4 5 6 7 8 LIN 2 1 2 3 4 5 6 IRS OFF IRS LED 30 32 31 29 28 27 SOS INFO WS INFO LED WS LED SOS LED 30 S GB 31 ASS LED ASS OFF 31 FL 8 7 6 5 4 3 2 1 SOS LED WS LED INFO LED AMBIENT LAMP AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT AUTOMATIC DIMMING MIRROR BLK WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/PNK WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CAN B L CAN B H COMPASS DISPLAY BUTTON (USA) COMPASS MODULE W/ DISPLAY (USA) COMPUTER DATA LINES SYSTEM EMERGENCY CALL SYSTEM CONTROL UNIT EQUIPMENT) RAIN/LIGHT SENSOR (W/ RAIN/LIGHT SENSOR) (RAIN/LIGHT FRONT DOME LAMP SWITCH FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 12 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 GND NTC (+) GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSIDE REARVIEW MIRROR INTERIOR LAMP AUTOMATIC FUNCTION SWITCH INTERIOR PROTECTION RECEIVER INTERIOR PROTECTION SWITCH (W/ TOW-WAY PROTECTION, INTERIOR PROTECTION) INTERIOR PROTECTION, TOW-WAY PROTECTION CONTROL UNIT (IF EQUIPPED) INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT FRONT INTERIOR LAMP LEFT FRONT READING LAMP SWITCH LEFT INTERIOR PROTECTION TRANSMITTER LEFT REAR WINDOW GLASS BREAKAGE SENSOR (W/ MODEL CODE 204.2) LEFT RIGHT READING READING LAMP LAMP LIGHT SENSOR (W/ STANDARD LIN 2 NCA WIRE NTC- OVERHEAD CONTROL PANEL ELECTRONICS PNK WIRE POWER TOPS SYSTEM REAR DOME LAMP, SWITCH REAR SAM CONTROL UNIT REAR WINDOW GLASS BREAKAGE SENSOR (W/ MODEL CODE 204.2) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RIGHT FRONT INTERIOR LAMP RIGHT FRONT READING LAMP SWITCH RIGHT INTERIOR PROTECTION TRANSMITTER RIGHT REAR WINDOW GLASS BREAKAGE SENSOR (W/ MODEL CODE 204.2) SENSOR) (TOP CENTER OF WINDSHIELD) SIG LIN 2 TOWING SENSOR BUTTON (W/ TOW-WAY PROTECTION, INTERIOR PROTECTION) USA USA DRIVER'S SEAT) 1 2 3 4 5 6 7 8 9 10 W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) W/ MODEL CODE 204.2 WHT WIRE WS INFO SOS 31 YEL WIRE YEL/RED WIRE YEL/VIO WIRE

1 2 3 4 5 6 7 8 LIN 2 1 2 3 4 5 6 IRS OFF IRS LED 30 32 31 29 28 27 SOS INFO WS INFO LED WS LED SOS LED 30 S GB 31 ASS LED ASS OFF 31 FL 31 HS 1 HS(+) HS 2 MOTOR - MOTOR + 8 7 6 5 4 3 2 1 SOS LED WS LED INFO LED AUTOMATIC DIMMING MIRROR BLK WIRE BLK/GRY 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 L CAN B H LIN 2 30 31 COMPASS DISPLAY BUTTON (USA) COMPASS MODULE W/ DISPLAY (USA) COMPUTER DATA LINES SYSTEM EMERGENCY CALL SYSTEM CONTROL UNIT FRONT DOME LAMP SWITCH FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 17 FUSE 46 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/BLU WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES INSIDE REARVIEW MIRROR INTERIOR LAMP AUTOMATIC FUNCTION SWITCH INTERIOR PROTECTION RECEIVER INTERIOR PROTECTION SWITCH (W/ TOW-WAY PROTECTION, INTERIOR PROTECTION) INTERIOR PROTECTION, TOW-WAY PROTECTION CONTROL UNIT (IF EQUIPPED) INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT FRONT INTERIOR LAMP LEFT FRONT READING LAMP SWITCH LEFT INTERIOR PROTECTION TRANSMITTER LEFT READING LAMP GARAGE DOOR OPENER LEFT REAR WINDOW GLASS BREAKAGE SENSOR (W/ MODEL CODE 204.2) LIN 2 NCA WIRE OVERHEAD CONTROL PANEL CONTROL MODULE PNK WIRE POWER TOPS SYSTEM REAR DOME LAMP, SWITCH REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE REAR WINDOW GLASS BREAKAGE SENSOR (W/ MODEL CODE 204.2) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/VIO WIRE RIGHT AMBIENT READING LAMP LAMP RIGHT FRONT INTERIOR LAMP RIGHT FRONT READING LAMP SWITCH RIGHT INTERIOR PROTECTION TRANSMITTER RIGHT REAR WINDOW GLASS BREAKAGE SENSOR (W/ MODEL CODE 204.2) TILTING/SLIDING ROOF SWITCH TOWING SENSOR BUTTON (W/ TOW-WAY PROTECTION, INTERIOR PROTECTION) USA VIO WIRE W/ MODEL CODE 204.2 WHT WIRE WS INFO SOS 31 YEL WIRE YEL/RED WIRE YEL/VIO WIRE

17 18 CAN B L CAN B H A S DK AIR CONDITIONING SYSTEM BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/VIO WIRE BRN/YEL WIRE CAN C H CAN C L COMPUTER DATA LINES SYSTEM E RDS ENGINE COOLANT TEMPERATURE MULFUNCTION IND ENGINE DIAGNOSIS MULFUNCTION IND LAMP FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUEL PRESSURE SENSOR (IN FUEL TANK) FUEL PUMP CONTROL UNIT (UNDER RIGHT REAR SEAT) FUSE FUSE 106 FUSE 32 GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/PNK WIRE GRN/VIO WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/WHT WIRE HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER IPM LSIK LSHK (+) (+) SV (+) SV ME-SFI (ME) CONTROL MODULE (TOP CENTER OF ENGINE) NCA WIRE NWG M NWSA 1 NWSE 2 ORG/ WIRE PNK/BLK WIRE PNK/RED WIRE PNK/WHT WIRE RED WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FUEL PUMP SECONDARY AIR INJECTION RELAY SLV THS STARTING/CHARGING SYSTEM 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/GRN WIRE YEL/RED WIRE YEL/WHT WIRE ZUE 1 ZUE 3 ZUF 5 ZUE 2 ZUE 4 ZUE 6