Mercedes-Benz C-class W203/S203/CL203 (2000-2004) front sam control module w/ fuse, relay module (left rear of engine compt) Wiring diagrams

1 2 3 4 5 6 7 CA 87 31 MODE KICKDN DIAG CAN L CAN H 1 2 3 4 5 CB GEAR GEAR GEAR GEAR 1 PINS 2 THRU 28: NOT USED 29 30 DIAG 2-3 SHIFT VALVE LOCK UP VALVE 3-4 SHIFT VALVE 1-2/ 4-5 VALVE AUTOMATIC TRANSMISSION PROGRAM SELECTOR PUSHBUTTON BLK/BLU WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BRN/RED WIRE CAN (-) CAN (+) CAN L COMPUTER DATA LINES SYSTEM DIAG ELECTRONIC SELECTOR LEVER CONTROL MODULE (BASE OF GEAR SELECTOR LEVER) ETC CONTROL MODULE (UNDER RIGHT SIDE OF DASH) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) GEAR DISPLAY SENSOR GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/YEL WIRE ILLUM INTERLOCK SWITCH KICKDOWN SWITCH (IN ACCEL PEDAL ASSEMBLY) MODUL- ATOR VALVE PNK RPM 2 SENSOR V+ 1-2/4-5 VLV 3-4 VLV 2-3 VLV PWM VLV WIRE PNK WIRE RED/BLU WIRE RED/WHT WIRE RPM SENSOR 2 RPM SENSOR 3 SENSOR GROUND TEMP/START RPM 3 MODULATOR VLV SHIFT VLV VLV SUPPLY SHIFT VALVE TEMP SENSOR VALVE UNIT (RIGHT FRONT OF TRANSMISSION HOUSING) WHT WIRE WHT/BRN WIRE WHT/GRN WIRE YEL WIRE

1 2 3 31 30 WAKE 1 2 AMFM CLEAR CLEAR AM/FM AM/FM 1 2 CAN B L CAN B H 1 2 GPS CLEAR GPS GPS 1 2 ZF CLEAR CLEAR ZF ZF 2 1 30 DIAG 4 3 2 30 FZU A-ST 4 5 CAN L CAN H 6 29 23 DIAG WAKE MUTE AMPLIFIER MODULE 1 (SCREEN ANTENNA) AMPLIFIER MODULE 2 (SCREEN ANTENNA) ANT BLK WIRE BLU/BLK WIRE BRN WIRE BRN/RED WIRE CD PLAYER CLEAR CLEAR CLEAR CLEAR CLEAR CLEAR AM/FM AM/FM CLEAR CLEAR ZF ZF COMAND OPERATING, DISPLAY, CONTROL MODULE COMPUTER DATA LINES SYSTEM CTEL INTERFACE (IF EQUIPPED) DIAG MUTE 30 ANT FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 2 FUSE 4 GPS ANTENNA (IF EQUIPPED) GRN WIRE GRN/BLK WIRE HOT AT ALL TIMES NCA WIRE OPTIC CABLE CONNECTOR ORG/ WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE TELE AID TRANSMITTER/ RECEIVER (FRONT OF SPARE TIRE WELL) VOICE CONTROL MODULE (IF EQUIPPED) WAKE WAKE UP SIGNAL CONNECTOR YEL/BLK WIRE

13 2 1 SRA CAN L CAN H BRN WIRE BRN/BLU WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM 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 6 HEADLAMP CLEANING SYSTEM (HCS) SWITCH HOT AT ALL TIMES LAMP SWITCH MODULE RED WIRE RED/GRY WIRE SRA

1 2 3 4 5 6 7 8 9 10 CAN-B H CAN-B L 1 2 AMFM CLEAR CLEAR AM/FM AM/FM 1 2 CAN B L CAN B H 1 2 GPS CLEAR GPS GPS 1 2 ZF CLEAR CLEAR ZF ZF 2 1 30 DIAG 3 2 1 WAKE 30 31 4 3 2 30 FZU A-ST 4 5 CAN L CAN H 6 29 23 DIAG WAKE MUTE AMPLIFIER MODULE 1 (SCREEN ANTENNA) AMPLIFIER MODULE 2 (SCREEN ANTENNA) ANT BLK WIRE BLU/BLK WIRE BRN WIRE BRN/RED WIRE CD PLAYER CLEAR CLEAR CLEAR CLEAR CLEAR CLEAR AM/FM AM/FM CLEAR CLEAR ZF ZF COMPUTER DATA LINES SYSTEM CTEL INTERFACE (IF EQUIPPED) DIAG MUTE 30 ANT FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 2 FUSE 4 GPS ANTENNA (IF EQUIPPED) GRN WIRE GRN/BLK WIRE HOT AT ALL TIMES NCA WIRE OPTIC CABLE CONNECTOR ORG/ WIRE RADIO REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE TELE AID TRANSMITTER/ RECEIVER (FRONT OF SPARE TIRE WELL) VOICE CONTROL MODULE (IF EQUIPPED) WAKE WAKE UP 30 31 WAKE UP SIGNAL CONNECTOR YEL/BLK WIRE

1 2 3 4 5 6 7 8 9 10 CAN-B H CAN-B L 1 2 CAN B L CAN B H 1 2 GPS CLEAR GPS GPS 1 2 ZF 1 2 AMFM CLEAR CLEAR ZF ZF 1-2, 3-4, 5-6, 7-8) 2 1 30 DIAG 3 2 1 WAKE 30 31 4 3 2 30 FZU A-ST 4 5 CAN L CAN H 6 29 23 DIAG WAKE MUTE AMPLIFIER MODULE 1 (SCREEN ANTENNA) AMPLIFIER MODULE 2 (SCREEN ANTENNA) ANT BLK WIRE BLU/BLK WIRE BRN WIRE BRN/GRN WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE CD PLAYER CLEAR CLEAR CLEAR CLEAR AM/FM AM/FM CLEAR CLEAR CLEAR CLEAR AM/FM AM/FM CLEAR CLEAR ZF ZF COMPUTER DATA LINES SYSTEM CTEL INTERFACE (IF EQUIPPED) DIAG MUTE 30 ANT FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 2 FUSE 4 GPS ANTENNA (IF EQUIPPED) GRN WIRE GRN/BLK WIRE HOT AT ALL TIMES LEFT FRONT DOOR MIRROR SPEAKER LEFT FRONT DOOR SPEAKER LEFT REAR DOOR SPEAKER NCA WIRE OPTIC CABLE CONNECTOR ORG/ WIRE PNK WIRE RADIO REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE RIGHT FRONT DOOR MIRROR SPEAKER RIGHT REAR DOOR SPEAKER RIGHT FRONT DOOR SPEAKER TELE AID TRANSMITTER/ RECEIVER (FRONT OF SPARE TIRE WELL) VOICE CONTROL MODULE (IF EQUIPPED) WAKE WAKE UP 30 31 WAKE UP SIGNAL CONNECTOR WHT WIRE YEL/BLK WIRE

15 11 26 38 CAN L CAN H BK WEAR BK WEAR 2.6L 3.2L 3 4 67 CAN L CAN H DRVR BELT BLK/BRN WIRE BRAKE FLUID INDICATOR SWITCH (IN BRAKE FLUID RESERVOIR) BRAKE FLUID, PARKING BRAKE WARNING LAMP BRK FLUID BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/WHT WIRE CAN-L CAN-H COMPUTER DATA LINES SYSTEM ESP, BAS CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 42 FUSE 50 GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT CLUSTER INTERIOR FUSE BOX (UNDER LEFT END OF DASH) MULTIFUNCTION DISPLAY NCA WIRE PARKING BRAKE INDICATOR SWITCH (NEAR PARK BRAKE LEVER) PRK BRK RED/YEL WIRE RESTRAINT SYSTEMS CONTROL MODULE (UNDER CENTER CONSOLE, LEFT OF SHIFTER) RIGHT FRONT BRAKE PAD CONTACT SENSOR SEAT BELT REMINDER LAMP WARNING BUZZER YEL/GRY WIRE YEL/RED 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

BLK/BLU WIRE BLK/GRY WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/YEL WIRE CAN B L CAN B H COMPUTER DATA LINES SYSTEM COOLANT FLUID LEVEL SWITCH (IN RESERVOIR) 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 4 HOT AT ALL TIMES MOTOR+ MOTOR- NCA WIRE PNK/RED WIRE RED WIRE RED/BLU WIRE RED/YEL WIRE RELAY TAILGATE WASHER FLUID PUMP (ON FLUID RESERVOIR) VIO/YEL WIRE WASHER FLUID LEVEL SWITCH (IN RESERVOIR) WASHER NOZZLE HEATER (LEFT) WASHER NOZZLE HEATER (RIGHT) WASHER NOZZLE HOSE HEATER WINDSHIELD WASHER FLUID PUMP (ON FLUID RESERVOIR) WIPER MOTOR (LEFT REAR OF ENGINE COMPT) WIPER ON/OFF RELAY YEL/BLU WIRE