Mercedes-Benz C-class AMG W204/S204/С204 (2007-2011) computer data lines system Wiring diagrams

10 9 CAN B L CAN B H 30 31 11 12 SIG SIG (+) (+) 31 30 CAN B L CAN B H 6 3 2 PNK WIRE 6 7 CAN B L CAN B H BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM FL 31 31 FRONT DOME LAMP SWITCH FRONT SAM CONTROL UNIT FUSE 21 W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) GLOVE BOX LAMP) GLOVE BOX LAMP/ SWITCH GRN WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/WHT WIRE INTERIOR LAMP AUTOMATIC FUNCTION SWITCH INTERIOR PROTECTION SWITCH LEFT FRONT INTERIOR LAMP LEFT FRONT READING LAMP SWITCH LEFT REAR READING LAMP LEFT SUN LEFT FRONT VISOR MIRROR LAMP MIRROR LAMP SWITCH PNK WIRE PNK/YEL WIRE REAR DOME LAMP REAR DOME LAMP, SWITCH REAR INTERIOR LAMP REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) RED WIRE RED/BLK WIRE RED/VIO WIRE RELAY ENERGIZED RIGHT FRONT INTERIOR LAMP RIGHT FRONT MIRROR LAMP SWITCH RIGHT FRONT READING LAMP SWITCH RIGHT REAR READING LAMP RIGHT SUN VISOR MIRROR LAMP W/ AVANTGARDE, ELEGANCE W/ CLASSIC YEL WIRE

2 1 CAN-B H CAN-B L AMBIENT LAMP RIGHT READING LAMP BLK WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DOOR EXIT, WARNING LAMP FLAT WIRE FUSE 89 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES INSIDE REARVIEW MIRROR LEFT FRONT DOOR CONTROL UNIT LEFT FRONT DOOR HANDLE ILLUMINATION (W/ INTERIOR LIGHTS PACKAGE) LEFT READING LAMP LEFT REAR DOOR CONTROL UNIT LEFT REAR DOOR HANDLE ILLUMINATION (W/ INTERIOR LIGHTS PACKAGE) LEFT TRUNK LAMP (MODEL CODE 204.2) LEFT TRUNK LID AMBIENT LAMP, WARNING LAMP MODEL CODE 204.0 PNK WIRE RED WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT DOOR HANDLE ILLUMINATION (W/ INTERIOR LIGHTS PACKAGE) RIGHT REAR DOOR CONTROL UNIT RIGHT REAR DOOR HANDLE ILLUMINATION (W/ INTERIOR LIGHTS PACKAGE) RIGHT TRUNK LAMP RIGHT TRUNK LID AMBIENT LAMP, WARNING LAMP TRUNK LID EXTERNAL OPERATION SWITCH VIO WIRE WHT WIRE YEL 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 4 3 CAN E L CAN E H 30 31 BLK WIRE BLK/WHT WIRE BRN WIRE BRN/RED WIRE CAN-B H CAN-B L COMPUTER DATA LINES SYSTEM FAN RELAY MODULE FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE FUSE 13 FUSE GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES LEFT FANFARE HORN (BEHIND LEFT SIDE OF FRONT BUMPER) LEFT FANFARE HORN SYSTEM BUTTON LEFT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP NCA WIRE RED WIRE RED/BLU WIRE RELAY RELAY ENERGIZED RIGHT FANFARE HORN (BEHIND RIGHT SIDE OF FRONT BUMPER) RIGHT FANFARE HORN SYSTEM BUTTON RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) STEERING WHEEL GEAR SHIFT SIGNAL PROCESSING MODULE (INSIDE STEERING WHEEL) 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 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

10 5 FLAT WIRE FLAT WIRE 2 1 CAN-B H CAN-B L 2 1 COMPUTER DATA LINES SYSTEM CAN B H CAN B L 8 7 FLAT WIRE FLAT WIRE AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM CONTROL DRIVER TAILGATE CONTROL BUTTON (W/ TAILGATE FLAT WIRE FLAT WIRE FLAT WIRE FRONT ELECTRICAL PREFUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FUSE 89 GRY/BLU WIRE HOT AT ALL TIMES LEFT CENTER AIR OUTLET SYMBOL ILLUMINATION LEFT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH LEFT FRONT DOOR CONTROL UNIT LEFT FRONT SIDE AIR OUTLET SYMBOL ILLUMINATION LEFT REAR DOOR CONTROL UNIT LEFT REAR POWER WINDOW SWITCH NCA WIRE REAR AIR OUTLET SYMBOL ILLUMINATION RED WIRE RIGHT CENTER AIR OUTLET SYMBOL ILLUMINATION RIGHT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT SIDE AIR OUTLET SYMBOL ILLUMINATION RIGHT REAR DOOR CONTROL UNIT RIGHT REAR POWER WINDOW SWITCH TRUNK LID RELEASE BUTTON TRUNK LID RELEASE BUTTON (W/ TRUNK LID RELEASE) W/ AIR OUTLET SYMBOL ILLUMINATION

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