Mercedes-Benz C-class W203/S203/CL203 (2000-2004) (2002 late production) Wiring diagrams

1 2 CAN B L CAN B H 1 2 CAN H CAN L 11 12 CAN-B H CAN-B L 12 11 CAN-B L CAN-B H 14 13 CAN-B H CAN-B L 2 1 CAN L CAN H 35 36 CAN-B L CAN-B H 4 3 CAN-B H CAN-B L 4 5 CAN-B L CAN-B H 6 7 CAN-B H CAN-B L 7 6 CAN-B L CAN-B H 8 9 CAN-B L CAN-B H BRN WIRE BRN/GRY WIRE BRN/RED WIRE COMAND OPERATING, DISPLAY, CONTROL MODULE (W/ COMAND) DRIVER SEAT ADJUSTMENT CONTROL MODULE (W/ MEMORY) (UNDER SEAT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) LEFT FRONT DOOR CONTROL MODULE LEFT REAR DOOR CONTROL MODULE LEFT VOLTAGE DISTRIBUTOR CONNECTOR (BEHIND LEFT KICK PANEL) KICK PANEL) RADIO (W/O COMAND) REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (AT LEFT SIDE OF TRUNK) RESTRAINT SYSTEMS CONTROL MODULE RIGHT FRONT DOOR CONTROL MODULE RIGHT FRONT SEAT ADJUSTMENT CONTROL MODULE (W/ MEMORY) (UNDER SEAT) RIGHT REAR DOOR CONTROL MODULE RIGHT VOLTAGE DISTRIBUTOR CONNECTOR (BEHIND RIGHT KICK PANEL) TELE AID TRANSMITTER/ RECEIVER

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 11 15 COMPUTER DATA LINES SYSTEM CAN-C H CAN-C L 13 12 10 11 CAN-B H CAN-B L CAN-C H CAN-C L 30 31 2 9 10 30 CAN-B L CAN-B H 2001, 2002 EARLY PRODUCTION 3 6 5 8 7 30 CAN-C H CAN-C L CAN-B H CAN-B L 33 34 36 37 42 43 45 46 SS RF SS RF SS LR SS LR SS RR SS RR SS LF SS LF 6 5 WIPE WASH 9 8 CA BLK/BLU WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE CAN B L CAN B H COMBINATION SWITCH COMPUTER DATA LINES SYSTEM COOLANT FLUID LEVEL SWITCH (IN RESERVOIR) DI CONTROL MODULE (2001, 2002 EARLY PRODUCTION) ESP, BAS CONTROL MODULE FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FUSE 6 FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 2 FUSE 31 FUSE 4 GRN WIRE GRN/WHT WIRE HI LO HI LO WIPER SWITCH HOT AT ALL TIMES INT OFF INT OFF WIPER SWITCH INTERIOR FUSE BOX (UNDER LEFT END OF DASH) MOTOR+ MOTOR- NCA WIRE OVERHEAD CONTROL PANEL CONTROL MODULE PNK/RED WIRE PNK/YEL WIRE RAIN SENSOR (FRONT OF HEADLINER) REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RELAY RS 31 STEERING COLUMN MODULE (2002 LATE PRODUCTION) TO WHEEL SPEED SENSORS VIO WIRE VIO/YEL WIRE WASHER FLUID LEVEL SWITCH (IN RESERVOIR) WASHER NOZZLE HEATERS WASHER NOZZLE HOSE HEATER WASHER SWITCH WINDSHIELD WASHER FLUID PUMP (ON FLUID RESERVOIR) WIPER MOTOR (LEFT REAR OF ENGINE COMPT) WIPER ON/OFF RELAY YEL/BLU WIRE