Mercedes-Benz C-class W203/S203/CL203 (2000-2004) grn/yel Wiring diagrams

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 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 AMBIENT LIGHT, ROAD AHEAD SENSORS AUTOMATIC LIGHT SWITCH DAYLIGHT SENSOR (FRONT OF HEADLINER) BLK WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM EXTERIOR LAMPS FOG LAMP FOG LAMP IND FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 4 FUSE 50 FUSE 62 FUSE 63 GRN WIRE GRN/BLK WIRE GRN/PNK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/YEL WIRE HEAD AUTO HEADLAMP WASH HIGH BEAM INDICATOR HIGH BEAM LOW BEAM HOT AT ALL TIMES HOT IN RUN OR START IN OUT INSTRUMENT CLUSTER LAMP SWITCH MODULE LEFT FRONT FOG LAMP RIGHT FRONT FOG LAMP LEFT HEADLAMP UNIT LEFT RIGHT MIRROR FOLD- MIRROR SELECT MIRROR ADJUST OVERHEAD CONTROL PANEL CONTROL MODULE PARK OFF RED WIRE RED/YEL WIRE RIGHT HEADLAMP UNIT 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 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 AMBIENT LIGHT, ROAD AHEAD SENSORS AUTOMATIC LIGHT SWITCH DAYLIGHT SENSOR (FRONT OF HEADLINER) BLK WIRE BLK/GRN WIRE BLK/PNK WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM DIAG EXTERIOR LAMPS FOG LAMP FOG LAMP IND FRONT AXLE SENSOR FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 4 FUSE 50 FUSE 51 FUSE 62 FUSE 63 GRN WIRE GRN/BLK WIRE GRN/PNK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HEAD AUTO HEADLAMP RANGE ADJUSTMENT MOTOR HEADLAMP WASH HIGH BEAM INDICATOR HIGH XENON BEAM XENON BEAM HOT AT ALL TIMES HOT IN RUN OR START IN OUT INSTRUMENT CLUSTER LAMP SWITCH MODULE LEFT FRONT FOG LAMP LEFT HEADLAMP UNIT LEFT RIGHT MIRROR FOLD- MIRROR SELECT MIRROR ADJUST OVERHEAD CONTROL PANEL CONTROL MODULE PARK OFF REAR AXLE SENSOR RED WIRE RED/GRN WIRE RED/YEL WIRE RIGHT FRONT FOG LAMP RIGHT HEADLAMP UNIT WHT WIRE WHT/BLK WIRE WHT/RED WIRE XENON CONTROL MODULE XENON IGNITION MODULE XENON CONTROL MODULE XENON IGNITION MODULE HIGH XENON BEAM XENON BEAM YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

12 11 CAN-B L CAN-B H 3 4 5 ILLUM CAN L CAN 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 L CAN 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 FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 4 FUSE 50 FUSE 51 FUSE 62 FUSE 63 GRN WIRE GRN/BLK WIRE GRN/PNK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HEADLAMP WASH HOT AT ALL TIMES HOT IN RUN OR START 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 LOWER CONTROL FIELD CONTROL MODULE MB-INFO, BREAKDOWN ASSISTANCE BUTTON GROUP MIRROR FOLD- MIRROR SELECT MIRROR ADJUST NCA WIRE PARK HEAD OFF AUTO REAR BLOWER ELECTRONIC SELECTOR WHEEL RED WIRE 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 STEERING WHEEL MULTI- FUNCTION SWITCHES (2001, 2002 EARLY PRODUCTION) UPPER CONTROL PANEL CONTROL MODULE YEL WIRE

1 2 3 6 7 8 ESA SW ESA SW ESA SW ESA SW ESA SW ESA SW 2 1 CAN L CAN H 2 MEMORY LOCATION 3 9 4 6 1 7 5 10 8 U/D MTR COMMON L/R MTR DIM DIM HEAT HEAT TURN TURN 3 9 4 7 5 10 8 U/D MTR COMMON L/R MTR HEAT HEAT TURN TURN 4 3 10 7 8 9 FOLD FOLD POS 2 (+) POS 1 (-) 4 5 CAN L CAN H 6 7 5 4 CAN-B H CAN-B L 30 31 BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLK/YEL WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM EXTERIOR LAMPS FOG LAMP FOG LAMP IND FOLD-IN MOTOR FOLD-IN MOTOR FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 4 FUSE 50 FUSE 6 FUSE 62 FUSE 63 GRN WIRE GRN/BLK WIRE GRN/PNK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HEAD HEADLAMP WASH HEATING ELEMENT HEATING ELEMENT AUTO DIM HOT AT ALL TIMES HOT AT ALL TIMES HOT AT ALL TIMES HOT IN RUN OR START IN OUT INTERIOR FUSE BOX (UNDER LEFT END OF DASH) FUSE 22 FUSE 21 LAMP SWITCH MODULE LEFT EXTERIOR MIRROR LEFT FRONT DOOR CONTROL MODULE LEFT FRONT DOOR ESA SWITCH GROUP LEFT RIGHT MEMORY STORE MIRROR ADJUST MIRROR FOLD- MIRROR SELECT MOTORS, POSITION SENSORS (LEFT/RIGHT, UP/ DOWN) NCA WIRE PARK OFF AUTO PNK/BLK WIRE PNK/RED WIRE RED WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT EXTERIOR MIRROR RIGHT FRONT DOOR CONTROL MODULE TURN SIGNAL WHT WIRE YEL WIRE YEL/GRN WIRE YEL/WHT WIRE

1 2 9 10 31 30 CAN L CAN H 17 18 12 13 CAN-B L CAN-B H CAN-B L CAN-B H 2 3 FUEL CAP FUEL CAP 3 4 CAN-B L CAN-B H 4 5 CAN L CAN H 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 COUPE, SEDAN DISPLAY FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FUEL FILLER CAP CENTRAL LOCKING MOTOR 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 DOOR CONTACT SWITCH (SEDAN, WAGON) LOCK PAWL ROTARY TUMBLER SWITCH (COUPE, SEDAN) MOTOR W/ POSITION, OBSTRUCTION SENSORS NCA WIRE OVERHEAD CONTROL PANEL CONTROL MODULE PNK/RED WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK) RED WIRE RED/BLU WIRE RIGHT FRONT DOOR CONTACT SWITCH RIGHT REAR DOOR CONTACT SWITCH (SEDAN, WAGON) ROOF DRIVE SYSTEM SEDAN WAGON SEDAN, COUPE TRUNK LID CENTRAL LOCKING MOTOR TRUNK LID CONTACT SWITCH TRUNK LID EMERGENCY RELEASE SWITCH TRUNK LID EXTERNAL OPERATION SWITCH UPPER CONTROL PANEL CONTROL MODULE VIO/BLU WIRE WHT WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE

2 1 CAN L CAN H 3 9 4 6 1 7 5 10 8 U/D MTR COMMON L/R MTR DIM DIM HEAT HEAT TURN TURN 3 9 4 7 5 10 8 U/D MTR COMMON L/R MTR HEAT HEAT TURN TURN 4 3 FOLD FOLD 4 5 CAN L CAN H 6 7 5 4 CAN-B H CAN-B L 30 31 BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLK/YEL WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM EXTERIOR LAMPS FOG LAMP FOG LAMP IND FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 21 FUSE 4 FUSE 50 FUSE 6 FUSE 62 FUSE 63 GRN WIRE GRN/BLK WIRE GRN/PNK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HEAD HEADLAMP WASH HEATING ELEMENT HEATING ELEMENT LEFT/ RIGHT MOTOR HOT AT ALL TIMES HOT IN RUN OR START IN OUT INTERIOR FUSE BOX (UNDER LEFT END OF DASH) FUSE 22 LAMP SWITCH MODULE LEFT EXTERIOR MIRROR LEFT FRONT DOOR CONTROL MODULE LEFT RIGHT LEFT/ RIGHT MOTOR AUTO DIM MIRROR ADJUST MIRROR FOLD- MIRROR SELECT NCA WIRE PARK OFF AUTO PNK/BLK WIRE PNK/RED WIRE RED WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT EXTERIOR MIRROR RIGHT FRONT DOOR CONTROL MODULE TURN SIGNAL UP/ DOWN MOTOR FOLD-IN MOTOR WHT WIRE YEL WIRE

31 GS F- GS F+ GS BF+ GS BF- GS HR- GS HR+ BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLK/VIO WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/PNK WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAN-L CAN-H COMPUTER DATA LINES SYSTEM CRASH SIG 31 DRIVER SEAT BELT BUCKLE RESTRAINT SYSTEMS SWITCH FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) GRN WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE GS HL- GS HL+ DRVR BELT LEFT AIRBAGS SENSOR (UNDER LEFT REAR SEAT) LEFT REAR ETR SQUIB (UNDER LEFT REAR SEAT) PASS BELT SEAT OCC PASSENGER SEAT BELT BUCKLE RESTRAINT SYSTEMS SWITCH PNK WIRE PNK/BLK WIRE RED WIRE RED/GRN WIRE RED/VIO WIRE RED/YEL WIRE RESTRAINT SYSTEMS CONTROL MODULE (UNDER CENTER CONSOLE, LEFT OF SHIFTER) RIGHT AIRBAGS SENSOR (UNDER RIGHT REAR SEAT) RIGHT REAR ETR SQUIB (UNDER RIGHT REAR SEAT) SB VL+ SB VL- WB L- WB L+ SB VR+ SB VR- WB R- WB R+ SB HL+ SB HL- SB HR- SB HR+ SIDE VIO WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE

2001, 2002 EARLY PRODUCTION BLK/VIO WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/PNK WIRE BRN/VIO WIRE BRN/YEL WIRE CLOCKSPRING DRIVER AIRBAG SQUIB 1 (BEHIND DRIVERS AIRBAG) DRIVER AIRBAG SQUIB 2 (BEHIND DRIVERS AIRBAG) DRIVER ETR SQUIB (AT BASE OF LEFT "B" PILLAR) FRONT PASSENGER AIRBAG SQUIB 1 (BEHIND RIGHT SIDE OF DASH) FRONT PASSENGER AIRBAG SQUIB 2 (BEHIND RIGHT SIDE OF DASH) FRONT PASSENGER ETR SQUIB (AT BASE OF RIGHT "B" PILLAR) GRN WIRE GRN/YEL WIRE LEFT FRONT SIDE AIRBAG SQUIB (IN LEFT FRONT DOOR) LEFT REAR SIDE AIRBAG SQUIB (IN LEFT REAR DOOR) LEFT REAR WINDOW AIRBAG SQUIB (AT LEFT "C" PILLAR) NCA WIRE PNK WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RIGHT FRONT SIDE AIRBAG SQUIB (IN RIGHT FRONT DOOR) RIGHT REAR SIDE AIRBAG SQUIB (IN RIGHT REAR DOOR) RIGHT REAR WINDOW AIRBAG SQUIB (AT RIGHT "C" PILLAR) STEERING COLUMN MODULE VIO WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE

1 2 CAN B L CAN B H 2 19 15 22 18 TRUNK EMERG TRUNK EMERG TRUNK EXT TRUNK MOTOR TRUNK AJAR 4 5 CAN L CAN H BLU/GRN WIRE BLU/RED WIRE BRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FUSE 2 FUSE 4 GRN WIRE GRN/YEL WIRE HOT AT ALL TIMES NCA WIRE PNK/RED WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK) RED WIRE TRUNK LID CENTRAL LOCKING MOTOR TRUNK LID CONTACT SWITCH TRUNK LID EMERGENCY RELEASE SWITCH TRUNK LID EXTERNAL SWITCH VIO/BLU WIRE YEL WIRE

ACCELERATOR PEDAL SENSOR (ABOVE PEDAL ASSEMBLY) ACTIVATED CHARCOAL FILTER SHUTOFF VALVE (ABOVE RIGHT REAR WHEELWELL) APS VLV VIMS VLV BLK/RED WIRE BLK/WHT 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/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CLUTCH PEDAL SWITCH FUEL TANK PRESSURE SENSOR (UNDER LEFT REAR SEAT) COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM DATA LINK CONNECTOR DIAG EGR ENGINE CONTROL MODULE (ME-SFI) (LEFT REAR OF ENGINE COMPT) FTP - CAN L FTP SIG FUEL INJECTORS FUEL PUMP ACF VLV AIR PUMP FAN GEN GENERATOR GRN WIRE GRN/BLU WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE INJ 5 INJ 2 INJ 6 INJ 3 KICKDOWN SWITCH (INCORPORATED W/ ACCELERATOR PEDAL ASSEMBLY) KICKDWN NCA WIRE P/N RED/BLU WIRE RED/GRN WIRE TNA VARIABLE INTAKE MANIFOLD SWITCHOVER VALVE VIO/GRN WIRE VIO/WHT WIRE VIO/YEL WIRE YEL WIRE YEL/BRN WIRE