Mercedes-Benz C-class W203/S203/CL203 facelift (2004-2008) interior fuse box (left end of dash) Wiring diagrams

#1 #2 #3 #4 #5 #6 1 2 3 4 5 6 7 8 9 10 11 12 13 14 (+) (+) (+) (-) (-) (-) 1 2 3 6 7 8 ESA SW ESA SW ESA SW ESA SW ESA SW ESA SW 2 1 CAN-B H CAN-B L 6 7 5 CAN-B H CAN-B L 30 BACKREST BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE CAN B L CAN-B H 30 COMPUTER DATA LINES SYSTEM COUPE DRIVER FRONT SEAT ADJUSTMENT CONTROL MODULE (UNDER DRIVER'S SEAT) DRIVER SEAT BACKREST ADJUSTMENT MOTOR DRIVER SEAT FORWARD/BACK ADJUSTMENT MOTOR DRIVER SEAT FRONT UP/DOWN ADJUSTMENT MOTOR DRIVER SEAT HEAD RESTRAINT RAISE/LOWER ADJUSTMENT MOTOR DRIVER SEAT REAR UP/DOWN ADJUSTMENT MOTOR FRONT (RAISE/ LOWER) FRONT PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FUSE 2 FUSE 21 FUSE 29 GRY/BLK WIRE GRY/GRN WIRE GRY/YEL WIRE HEAD RESTRAINT (RAISE/ LOWER) HOT AT ALL TIMES INTERIOR FUSE BOX (LEFT END OF DASH) LEFT FRONT DOOR CONTROL MODULE LEFT FRONT DOOR ESA (ESV) SWITCH GROUP MEMORY LOCATION MEMORY STORE REAR (RAISE/ LOWER) REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK CARGO/AREA) RED WIRE RED/WHT WIRE RED/YEL WIRE SEAT (FORWARD/ BACK) SEDAN WAGON STEERING COLUMN MEMORY CIRCUIT VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE

1 2 CAN B L CAN B H 1 6 DIM DIM 6 7 CA CAN-C L CAN-C H 6 7 CAN-B H CAN-B L 9 10 2 1 CAN-B L CAN-B H 30 31 AIS 31 AIS AUTO DIM BLK WIRE BLU/GRY WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM COUPE ELECTRONIC SELECTOR LEVER CONTROL MODULE (AT BASE OF GEAR SHIFT ASSEMBLY) FRONT PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FUSE 2 FUSE 21 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES INTERIOR FUSE BOX (LEFT END OF DASH) INTERIOR REARVIEW MIRROR UNIT LEFT EXTERIOR MIRROR TURN SIGNAL LAMP LEFT FRONT DOOR CONTROL MODULE (IN DRIVER'S DOOR) MIRROR AUTO SENSOR DIM (FRONT) MIRROR SENSOR (BACK) NCA WIRE OVERHEAD CONTROL PANEL CONTROL MODULE PNK/RED WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) RED WIRE RED/BLU WIRE RED/WHT WIRE SEDAN, COVERTIBLE

6 7 5 4 CAN-B H CAN-B L 30 31 7 5 HEAT HEAT 7 5 SH (+) SH (-) AAC PUSHBUTTON CONTROL MODULE, COMFORT AAC PUSHBUTTON CONTROL MODULE BLK WIRE BLK/RED WIRE BLU WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE CAN-B H CAN-B L 30 COMPUTER DATA LINES SYSTEM DEFROSTER SWITCH FRONT PASSENGER SIDE DOOR CONTROL MODULE (IN RIGHT FRONT DOOR) FUSE 21 FUSE 22 FUSE 41 GRY WIRE HOT AT ALL TIMES INTERIOR FUSE BOX (LEFT END OF DASH) LEFT EXTERIOR MIRROR LEFT FRONT DOOR CONTROL MODULE (IN DRIVER'S DOOR) NCA WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE RIGHT EXTERIOR MIRROR UPPER CONTROL PANEL CONTROL MODULE WHT WIRE

1 2 3 4 31 30 CAN-B L CAN-B H 4 1 2 30 RF HTD SEAT LF HTD SEAT BLK/GRY WIRE BLK/VIO WIRE BLU WIRE BRN WIRE BRN/RED WIRE COMFORT AAC PUSHBUTTON CONTROL MODULE COMPUTER DATA LINES SYSTEM FUSE 25 FUSE 41 GRN WIRE HOT AT ALL TIMES INTERIOR FUSE BOX (LEFT END OF DASH) LEFT FRONT HEATED SEAT SWITCHES LEFT LEFT FRONT FRONT HEATED HEATED BACKREST SEAT CUSHION CUSHION NCA WIRE RED WIRE RED/BLU WIRE RED/GRN WIRE RIGHT FRONT HEATED BACKREST CUSHION RIGHT FRONT HEATED SEAT CUSHION RIGHT FRONT HEATED SEAT SWITCHES 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

1 2 MOST 24 IN OUT 1 2 MOST IN OUT 1 MOST 16 IN 2 MOST OUT 3 1 2 MOST WAKE UP MOST IN MOST OUT BLU/BLK WIRE BRN WIRE CD CHANGER (IN GLOVE COMPT) FUSE 24 HOT AT ALL TIMES INTERIOR FUSE BOX (LEFT END OF DASH) ORG/ WIRE PNK WIRE RADIO RED WIRE RED/PNK WIRE SDAR CONTROL UNIT (AT RIGHT REAR OF TRUNK) SOUND AMPLIFIER WAKE UP SIGNAL CONNECTOR WAKE-UP

#1 #2 #3 #4 #5 #6 1 2 3 4 5 6 7 8 9 10 11 12 13 14 (+) (+) (+) (-) (-) (-) 1 2 3 7 8 ESA SW ESA SW ESA SW ESA SW ESA SW 2 1 CAN-B H CAN-B L 6 7 5 CAN-B H CAN-B L 30 BACKREST BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE CAN B L CAN-B H 30 COMPUTER DATA LINES SYSTEM COUPE FRONT (RAISE/ LOWER) FRONT PRE-FUSE BOX (AT REAR OF ENGINE COMPT) FUSE 2 FUSE 22 FUSE 34 GRY WIRE HEAD RESTRAINT (RAISE/ LOWER) HOT AT ALL TIMES INTERIOR FUSE BOX (LEFT END OF DASH) MEMORY LOCATION MEMORY STORE PASSENGER SEAT BACKREST ADJUSTMENT MOTOR PASSENGER SEAT FORWARD/BACK ADJUSTMENT MOTOR PASSENGER SEAT FRONT UP/DOWN ADJUSTMENT MOTOR PASSENGER SEAT HEAD RESTRAINT RAISE/LOWER ADJUSTMENT MOTOR PASSENGER SEAT REAR UP/DOWN ADJUSTMENT MOTOR REAR (RAISE/ LOWER) REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE TRUNK,CARGO AREA) RED WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR CONTROL MODULE RIGHT FRONT DOOR ESA (ESV) SWITCH GROUP SEAT (FORWARD/ BACK) SEDAN WAGON VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE

1 2 MOST MOST IN MOST OUT 30 WAKE UP BASS MODULE LOUDSPEAKER BLK WIRE BLU/BLK WIRE BRN WIRE BRN/GRN WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE CAN B L MUTE CAN B H 31 CD CHANGER (IN GLOVE COMPT) COMPUTER DATA LINES SYSTEM NAVIGATION SYSTEM COMPUTER DATA LINES SYSTEM COUPE EARLY FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 24 GRN WIRE HOT AT ALL TIMES INTERIOR FUSE BOX (LEFT END OF DASH) LATE LEFT FRONT DOOR MIRROR TRIANGLE SPEAKER LEFT FRONT DOOR SPEAKER LEFT REAR DOOR SPEAKER MOST BUS CIRCUIT NCA WIRE ORG/ WIRE PNK WIRE RADIO RED WIRE RED/BLU WIRE RED/PNK WIRE RIGHT FRONT DOOR MIRROR TRIANGLE SPEAKER RIGHT FRONT DOOR SPEAKER RIGHT REAR DOOR SPEAKER SEDAN, COUPE WAGON WAGON SEDAN WAKE-UP WALKMAN SEPARATION POINT WHT WIRE YEL WIRE YEL/BLK WIRE ZF 1 2 3 4 5 6 7 8 9 10 11 12

AAC PUSHBUTTON CONTROL MODULE, COMFORT AAC PUSHBUTTON CONTROL MODULE BLK WIRE BLU WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE CAN B L CAN B H CAN-B H CAN-B L 30 COMPUTER DATA LINES SYSTEM FRONT PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FUSE FUSE 2 FUSE 41 HEATED REAR WINDOW HOT AT ALL TIMES INTERIOR FUSE BOX (LEFT END OF DASH) REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) REAR WINDOW DEFROSTER RELAY REAR WINDOW DEFROSTER SWITCH RED WIRE RED/BLU WIRE UPPER CONTROL PANEL CONTROL MODULE

1 2 CAN B L CAN B H 3 4 CAN-B L CAN-B H BLK/GRN WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE COMFORT AAC PUSHBUTTON CONTROL MODULE COMPUTER DATA LINES SYSTEM FUSE 25 FUSE 41 GRN WIRE HOT AT ALL TIMES HOT AT ALL TIMES FRONT PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FUSE 2 HOT AT ALL TIMES FUSE 20 INTERIOR FUSE BOX (LEFT END OF DASH) REAR BLIND SWITCH REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) REAR SCREEN BLIND RELAY (AT LEFT SIDE OF TRUNK) REAR WINDOW BLIND MOTOR (AT RIGHT REAR OF SUN ROOF OPENING) RED WIRE RED/BLU WIRE RED/GRN WIRE UPPER CONTROL PANEL CONTROL MODULE WHT WIRE