Mercedes-Benz C-class W203/S203/CL203 facelift (2004-2008) instrument cluster Wiring diagrams

BA MV- UM 1 SS RF SS RF BLA SS LR SS LR BRK WEAR BLA BLK/GRN WIRE BLK/GRY WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE FLUID INDICATOR SWITCH BRAKE FLUID, PARKING BRAKE WARNING LAMP BRK WEAR BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L CAN C H CAN C L CAN-C H VSS RF SPS SOL VSS LF CAN-C L 31 BA MV+ COMPUTER DATA LINES SYSTEM DIAPHRAGM TRAVEL SENSOR ESP, BAS CONTROL MODULE (AT LEFT FRONT OF ENGINE COMPT) FRONT AXLE INLET SOLENOID VALVE FRONT AXLE SWITCH- OVER SOLENOID VALVE FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 56 FUSE 59 FUSE 60 GRN WIRE GRN/BLU WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HIGH PRESSURE, RETURN PUMP MOTOR HOT AT ALL TIMES HOT W/ CIRCUIT 87 RELAY,CHASSIS INSTRUMENT CLUSTER LEFT FRONT AXLE SOLENOID VALVE (HOLD) LEFT FRONT AXLE SOLENOID VALVE (RELEASE) LEFT FRONT WHEEL SPEED SENSOR LEFT REAR AXLE SOLENOID VALVE (HOLD) LEFT REAR AXLE SOLENOID VALVE (RELEASE) LEFT REAR WHEEL SPEED SENSOR MPS UZ MP- NCA WIRE REAR AXLE INLET SOLENOID VALVE REAR AXLE SWITCH- OVER SOLENOID VALVE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RELEASE SWITCH RIGHT FRONT AXLE SOLENOID VALVE (HOLD) RIGHT FRONT AXLE SOLENOID VALVE (RELEASE) RIGHT FRONT BRAKE PAD CONTACT SENSOR RIGHT FRONT WHEEL SPEED SENSOR RIGHT REAR AXLE SOLENOID VALVE (HOLD) RIGHT REAR AXLE SOLENOID VALVE (RELEASE) RIGHT REAR BRAKE PAD CONTACT SENSOR RIGHT REAR WHEEL SPEED SENSOR SIGNAL SOLENOID VALVE SPS SOLENOID VALVE (UNDER VEHICLE, ON STEERING RACK) SS RR SS RR SPS SOL SS LF SS LF 31 TURN RATE, LATERAL ACCELERATION SENSOR (AT FRONT OF CARGO AREA) VALID FOR SPS(PML) VIO/BLU WIRE VIO/WHT WIRE WHT GRN/ WIRE WHT/BLU WIRE YEL/BLU WIRE YEL/GRY WIRE YEL/RED WIRE YEL/WHT WIRE

1 6 5 8 7 ESA CAN-C H CAN-C L CAN-B H CAN-B L 11 12 CAN-B H CAN-B L 17 18 12 13 CAN-B L CAN-B H CAN-C L CAN-C H 2 3 DOOR MOTOR DOOR MOTOR 3 4 CAN-B L CAN-B H 41 54 CAN-B H CAN-B L 6 7 5 4 CAN-B H CAN-B L 30 31 8 6 7 3 2 IR REC IR REC IR REC DOOR MOTOR DOOR MOTOR BLK WIRE BRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM DISPLAY ELECTRONIC STEERING LOCK CONTROL MODULE (ON STEERING COLUMN) ESA FUSE 21 FUSE 22 FUSE 33 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT AT ALL TIMES INTERIOR FUSE BOX (LEFT END OF DASH) FUSE 32 INSTRUMENT CLUSTER INTERIOR CENTRAL LOCKING SWITCH LEFT FRONT DOOR CL MOTOR (AT REAR OF DRIVER'S DOOR) LEFT FRONT DOOR CONTROL MODULE (IN DRIVER'S DOOR) LEFT FRONT IR RECEIVER UNIT (AT REAR OF LEFT FRONT DOOR) LEFT REAR DOOR CL MOTOR (AT REAR OF LEFT REAR DOOR) LEFT REAR DOOR CONTROL MODULE ME-SFI CONTROL MODULE (AT LEFT REAR OF ENGINE COMPARTMENT) RED WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE RIGHT FRONT DOOR CL MOTOR (AT REAR OF RIGHT FRONT DOOR) RIGHT FRONT DOOR CONTROL MODULE RIGHT FRONT IR RECEIVER UNIT (AT REAR OF RIGHT FRONT DOOR) RIGHT REAR DOOR CL MOTOR (AT REAR OF RIGHT REAR DOOR) RIGHT REAR DOOR CONTROL MODULE UPPER CONTROL PANEL CONTROL MODULE WHT WIRE WHT/RED WIRE

17 18 12 13 CAN-B L CAN-B H CAN-C L CAN-C H 2 1 CAN-B L CAN-B H 2 3 4 KPR 87 15 4 5 CAN-B L CAN-B H 7 3 11 10 2 8 RF TURN RF PARK RF MARK LF MARK LF PARK LF TURN 7 6 CAN-B L CAN-B H BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM EXTERIOR LAMPS FOG LAMP FOG LAMP IND FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 50 GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/PNK WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE HEAD AUTO HEADLAMP WASH HOT AT ALL TIMES FUSE 62 HOT AT ALL TIMES FUSE 63 HOT W/ CIRCUIT IN OUT INSTRUMENT CLUSTER LAMP SWITCH MODULE LEFT EXTERIOR MIRROR LEFT FRONT DOOR CONTROL MODULE (IN DRIVER'S DOOR) LEFT FRONT SIDE MARKER LAMP RIGHT FRONT SIDE MARKER LAMP LEFT HEADLAMP UNIT LEFT RIGHT LEFT TURN IND LIGHT MIRROR FOLD- MIRROR SELECT MIRROR ADJUST NCA WIRE PARK OFF PNK/RED WIRE RED WIRE RIGHT EXTERIOR MIRROR RIGHT FRONT DOOR CONTROL MODULE RIGHT HEADLAMP UNIT RIGHT TURN IND SOUNDER- SRA NSL STAND/ PARK LAMP STAND/ PARK LAMP TURN LAMP TURN TURN LAMP VIO/BLU WIRE WHT WIRE YEL WIRE

17 18 12 13 CAN-B L CAN-B H CAN-B L CAN-B H 2 1 CAN L CAN H 4 5 CAN L CAN H 56 NSL 6 5 2 1 4 3 R LO BEAM R HI BEAM R FOG L FOG L LO BEAM L HI BEAM 9 10 CAN-B L CAN-B H BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM EXTERIOR LAMPS FOG LAMP FOG LAMP IND FRONT PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 4 FUSE 62 GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/PNK WIRE GRN/RED WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/YEL WIRE HEADLAMP WASH HIGH BEAM INDICATOR HIGH BEAM LOW BEAM HOT AT ALL TIMES HOT AT ALL TIMES FUSE 63 HOT IN RUN OR START FUSE 50 INSTRUMENT CLUSTER LAMP SWITCH MODULE LEFT FRONT HEADLAMP UNIT LEFT RIGHT MIRROR FOLD- MIRROR SELECT MIRROR ADJUST OUT IN OVERHEAD CONTROL PANEL CONTROL MODULE PARK HEAD OFF AUTO RED WIRE RIGHT FRONT FOG LAMP LEFT FRONT FOG LAMP RIGHT FRONT HEADLAMP UNIT SRA WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

17 18 12 13 CAN-B L CAN-B H CAN-B L CAN-B H 2 1 CAN L CAN H 4 5 CAN L CAN H 56 NSL 6 5 2 4 3 1 R LO BEAM R HI BEAM R FOG L LO BEAM L HI BEAM L FOG 9 10 CAN-B L CAN-B H BLK WIRE BLK/GRN WIRE BLK/PNK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM DIAG EXTERIOR LAMPS FOG LAMP FOG LAMP IND FRONT AXLE SENSOR (RIGHT FRONT WHEEL HOUSE) FRONT PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 4 GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/PNK WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HEADLAMP RANGE ADJUSTMENT MOTOR HEADLAMP WASH HIGH BEAM INDICATOR HIGH XENON BEAM XENON BEAM HOT AT ALL TIMES HOT AT ALL TIMES FUSE 62 HOT AT ALL TIMES FUSE 63 HOT IN RUN OR START FUSE 50 HOT IN RUN OR START FUSE 51 IN OUT INSTRUMENT CLUSTER LAMP SWITCH MODULE LEFT FRONT FOG LAMP LEFT FRONT HEADLAMP UNIT LEFT RIGHT MIRROR ADJUST MIRROR FOLD- MIRROR SELECT OVERHEAD CONTROL PANEL CONTROL MODULE PARK HEAD OFF AUTO REAR AXLE SENSOR (RIGHT SIDE OF REAR AXLE) RED WIRE RED/GRN WIRE RED/YEL WIRE RIGHT FRONT FOG LAMP RIGHT FRONT HEADLAMP UNIT SRA WHT WIRE WHT/BLK WIRE WHT/RED WIRE XENON CONTROL HIGH XENON BEAM XENON MODULE BEAM XENON IGNITION MODULE XENON XENON IGNITION CONTROL MODULE MODULE YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

1 2 3 CAN H CAN L 1 2 CAN H CAN L 1 2 CAN-B H CAN-B L 1 2 CAN-C H CAN-C L 10 11 CAN-C H CAN-C L 10 9 CAN-B H CAN-B L 11 15 CAN-C H CAN-C L 12 13 CAN-B L CAN-B H 13 12 CAN-C H CAN-C L 18 17 CAN B H CAN B L 2 1 CAN L CAN H 4 3 CAN-B H CAN-B L 41 40 CAN C H CAN C L 41 54 CAN-C H CAN-C L 5 SPEED A/T 6 5 CAN-C H CAN-C L 7 6 CAN-C H CAN-C L 7 SPEED A/T 8 7 CAN-B H CAN-B L BRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN DATABUS ADAPTER CONNECTOR (BEHIND LEFT KICK PANEL) COCKPIT VOLTAGE DISTRIBUTOR CONNECTOR COMFORT AAC PUSHBUTTON CONTROL MODULE, AAC PUSHBUTTON CONTROL MODULE DI CONTROL MODULE ELECTRIC CONTROL UNIT (VGS) ELECTRONIC SELECTOR LEVER CONTROL MODULE (AT BASE OF GEAR SHIFT ASSEMBLY) ESP, BAS CONTROL MODULE (AT LEFT FRONT OF ENGINE COMPT) ETC CONTROL MODULE (EGS) (UNDER RIGHT SIDE OF DASH) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) GRN WIRE GRN/WHT WIRE INSTRUMENT CLUSTER ME-SFI CONTROL MODULE (AT LEFT REAR OF ENGINE COMPT) OVERHEAD CONTROL PANEL CONTROL MODULE STEERING COLUMN MODULE (AT TOP OF STEERING COLUMN) UPPER CONTROL PANEL CONTROL MODULE

1 2 7 9 3 CAN L CAN H L FUEL (-) R FUEL 40 41 CAN L CAN H 41 54 CAN H CAN L 6 7 CAN L CAN H ABS MIL AIR BAG INDICATOR, WARNING LAMP AREA) BLK/BRN WIRE BLU/BLK WIRE BLU/YEL WIRE BRAKE FLUID INDICATOR SWITCH (IN BRAKE FLUID RESERVOIR) BRAKE FLUID, PARKING BRAKE WARNING LAMP BRK FLUID BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CAN L CAN H DRVR BELT CAN-L CAN-H COMPUTER DATA LINES SYSTEM DRIVER SEAT BELT BUCKLE RESTRAINT SYSTEMS SWITCH DTR WARNING LAMP ELECTRONIC SELECTOR LEVER MODULE CONTROL MODULE (AT BASE OF GEAR ELECTRONIC SPEEDOMETER ENGINE DIAGNOSIS MALFUNTION INDICATOR LAMP ESP WARNING LAMP ETC (EGS) CONTROL MODULE (UNDER RIGHT SIDE OF DASH) FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUEL LEVEL GAUGE W/ RESERVE INDICATOR FUSE 42 FUSE 51 GEAR DISPLAY (PRNDL) GRN WIRE GRN/WHT WIRE GRY/GRN WIRE HIGH BEAM INDICATOR LAMP HOT AT ALL TIMES HOT W/ CIRCUIT ILLUMINATION ILLUMINATION RHEOSTAT INSTRUMENT CLUSTER INTERIOR FUSE BOX (LEFT END OF DASH) LEFT FUEL LEVEL SENSOR (UNDER LEFT REAR SEAT) LEFT TURN INDICATOR ME-SFI CONTROL MODULE (AT LEFT REAR OF ENGINE COMPT) MULTIFUNCTION DISPLAY NCA WIRE PARKING BRAKE INDICATOR SWITCH (ON PARKING BRAKE SUPPORT BRAKET) PRK BRK REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK CARGO, RED/YEL WIRE RESTRAINT SYSTEMS CONTROL MODULE (UNDER FRONT OF CENTER CONSOLE) RIGHT FUEL LEVEL SENSOR (UNDER RIGHT REAR SEAT) RIGHT TURN INDICATOR SEAT BELT REMINDER LAMP SHIFT ASSEMBLY) SOUNDER- TACHOMETER TRIP ODOMETER RESET BUTTON WARNING BUZZER

12 11 CAN-B L CAN-B H 3 4 5 ILLUM CAN-B L CAN-B H 7 6 CAN-B L CAN-B H AUTOMATIC TRANSMISSION PROGRAM SELECTOR PUSHBUTTON BLK WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/YEL WIRE CAN-B L CAN-B H ILLUM CENTER AIR OUTLET ILLUMINATION CLOCK- SPRING COMPUTER DATA LINES SYSTEM EXTERIOR LAMPS FOG LAMP FOG LAMP IND FRONT ASHTRAY ILLUMINATION FRONT CIGAR LIGHTER REAR BLOWER ELECTRONIC SELECTOR WHEEL FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 4 GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/PNK WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HEADLAMP WASH HOT AT ALL TIMES HOT AT ALL TIMES FUSE 62 HOT AT ALL TIMES FUSE 63 ILLUM ILLUMINATION ILLUMINATION RHEOSTAT IN OUT INSTRUMENT CLUSTER LAMP SWITCH MODULE LEFT AIR OUTLET ILLUMINATION LEFT REAR DOOR CONTROL MODULE LEFT REAR POWER WINDOW SWITCH LEFT RIGHT MB-INFO, BREAKDOWN ASSISTANCE BUTTON GROUP MIRROR FOLD- MIRROR SELECT MIRROR ADJUST NCA WIRE PARK HEAD OFF AUTO RED WIRE RELAY ENERGIZED FUSE 50 RELAY ENERGIZED FUSE 51 RIGHT AIR OUTLET ILLUMINATION RIGHT FRONT DOOR CONTROL MODULE RIGHT FRONT POWER WINDOW SWITCH RIGHT REAR DOOR CONTROL MODULE RIGHT REAR POWER WINDOW SWITCH SOS PUSH BUTTON SWITCH SRA STEERING WHEEL MULTI- FUNCTION SWITCHES YEL WIRE

"C" PILLAR) 1 2 9 10 31 30 CAN-B L CAN-B H 17 18 12 13 CAN-B L CAN-B H CAN-C L CAN-C H 2 3 4 KPR 87 15 2 3 FUEL CAP FUEL CAP 3 4 CAN-B L CAN-B H 4 5 CAN-B L CAN-B H BLK WIRE BLU WIRE BLU/GRN WIRE BLU/RED WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CONTACT SWITCH (SEDAN, WAGON) (AT RIGHT "C" PILLAR) COUPE, SEDAN DISPLAY DOOR CONTACT SWITCH (AT RIGHT "B" PILLAR) DOOR CONTACT SWITCH (SEDAN, WAGON) (AT LEFT FRONT PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FUEL FILLER FLAP CL MOTOR (AT RIGHT SIDE OF TRUNK) FUSE 2 FUSE 4 GRN WIRE GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INTERIOR CENTRAL LOCKING SWITCH LEFT FRONT DOOR CONTACT SWITCH LEFT REAR NCA WIRE OVERHEAD CONTROL PANEL CONTROL MODULE PAWL ROTARY TUMBLER SWITCH (COUPE, SEDAN) (CENTER REAR OF TAILGATE) PNK/RED WIRE REAR PANEL CL (ZV) MOTOR REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) RED WIRE RED/BLU WIRE RIGHT FRONT RIGHT REAR DOOR ROOF DRIVE SYSTEM (COUPE) (AT FRONT CENTER OF ROOF) SEDAN, COUPE TRUNK LID CONTACT SWITCH (AT CENTER REAR OF TRUNK LID) TRUNK LID EMERGENCY RELEASE SWITCH (SEDAN) (AT REAR OF TRUNK LID) TRUNK LID EXTERNAL OPERATION SWITCH (SEDAN) (IN TRUNK LID) UPPER CONTROL PANEL CONTROL MODULE VIO WIRE VIO/BLU WIRE WHT WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE

BATTERY BLK WIRE BLK/BRN WIRE BRN WIRE CIRCUIT EIS (EZS) CONTROL MODULE FRONT SAM CONTROL UNIT W/FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 51 FUSE 52 GENERATOR HOT AT ALL TIMES FRONT PREFUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FUSE 4 INSTRUMENT CLUSTER PNK WIRE PNK/RED WIRE POWER DISTRIBUTION SYSTEM RED WIRE RELAY STARTER STARTER RELAY VIO WIRE VIO/WHT WIRE WHT WIRE