Mercedes-Benz C-class W203/S203/CL203 (2000-2004) etc control module (under right side of dash) 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

2 1 CAN L CAN H 2.6L 3.2L 4 5 CAN L CAN H BLK WIRE BLU/YEL WIRE BRAKE BOOSTER VACUUM PUMP CONTROL MODULE BRN WIRE BRN/RED WIRE BRN/WHT WIRE COMAND OPERATING, DISPLAY, CONTROL MODULE COMPUTER DATA LINES SYSTEM (HIGH/LOW BUS CIRCUIT) DATALINK CONNECTOR (UNDER LEFT SIDE OF DASH) DI CONTROL MODULE DIAG ENGINE CONTROL MODULE (LEFT REAR OF ENGINE COMPT) ETC CONTROL MODULE (UNDER RIGHT SIDE OF DASH) 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 62 GRN/BLK WIRE GRN/BLU WIRE GRN/PNK WIRE GRN/RED WIRE GRY WIRE GRY/YEL WIRE HOT AT ALL TIMES LEFT HEADLAMP UNIT RIGHT HEADLAMP UNIT PNK/RED WIRE RADIO TELEPHONE, TELE AID TRANSMITTER/ RECEIVER RED WIRE RED/GRN WIRE W/ COMAND W/O COMAND WHT/BRN WIRE WHT/GRN WIRE WHT/YEL WIRE

1 11 1 4 CAN H CAN L 1 2 7 9 3 CAN L CAN H L FUEL (-) R FUEL 2.3L 2.6L, 3.2L 40 41 CAN L CAN H 6 7 CAN L CAN H ABS MIL AIRBAG INDICATOR, WARNING LAMP BLK/BRN WIRE BLU/BLK 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 BRN/YEL 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 CONTROL MODULE (BASE OF GEAR SELECTOR LEVER) ENGINE MALFUNCTION INDICATOR LAMP ESP WARNING LAMP ETC CONTROL MODULE (UNDER RIGHT SIDE OF DASH) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUEL LEVEL GAUGE W/ RESERVE INDICATOR FUEL PUMP ASSEMBLY FUSE 42 FUSE 50 GEAR DISPLAY (PRNDL) GRN WIRE GRN/WHT WIRE GRY/GRN WIRE HIGH BEAM INDICATOR LAMP HOT AT ALL TIMES HOT IN RUN OR START ILLUMINATION ILLUMINATION RHEOSTAT INSTRUMENT CLUSTER INTERIOR FUSE BOX (UNDER LEFT END OF DASH) LEFT FUEL LEVEL SENSOR LEFT TURN INDICATOR ME-SFI CONTROL MODULE (LEFT REAR OF ENGINE COMPT) MULTIFUNCTION DISPLAY NCA WIRE PARKING BRAKE INDICATOR SWITCH (NEAR PARK BRAKE LEVER) PRK BRK REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK) RED/YEL WIRE RESTRAINT SYSTEMS CONTROL MODULE (UNDER CENTER CONSOLE, LEFT OF SHIFTER) RIGHT FUEL LEVEL SENSOR RIGHT TURN INDICATOR SEAT BELT REMINDER LAMP SOUNDER- SPEEDOMETER TACHOMETER TRIP ODOMETER RESET BUTTON WARNING BUZZER

1 29 30 DIAG 87 31 1 4 5 10 87 CAN L CAN H DIAG 1 6 7 5 2 CA 87 CAN L CAN H DIAG 31 17 1 15 6 MLS BS CAN L CAN H 2 1 CAN L CAN H 40 41 CAN L CAN H BLK WIRE BRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM ELECTRONIC SELECTOR LEVER CONTROL MODULE (BASE OF GEAR SELECTOR LEVER) ESP, BAS CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) ETC CONTROL MODULE (UNDER RIGHT SIDE OF DASH) 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 56 FUSE 62 FUSE 6 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT IN RUN, ACC OR START PNK 5 CB WIRE PNK WIRE RED WIRE RED/BLU WIRE RED/VIO WIRE RED/WHT WIRE STOPLAMP SWITCH (ON BRAKE PEDAL BRACKET) VIO WIRE WHT/BRN WIRE WHT/GRN WIRE YEL WIRE