Mercedes-Benz C-class W203/S203/CL203 (2000-2004) brn/pnk Wiring diagrams

1 2 9 10 31 30 CAN L CAN H 2 3 1 2 4 1 30 FZU A-ST 3 4 2 5 6 SIG 4 3 2 30 FZU A-ST 4 5 CAN L CAN H 4 6 LOW BEAM LOW BEAM 6 11 2 12 PARK LAMP TURN LAMP PARK LAMP TURN LAMP 7 8 TURN SIG TURN SIG ALARM SIGNAL HORN AMPLIFIER MODULE ATA HOOD SWITCH ATA INCLINATION SENSOR BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLU/GRN WIRE BLU/RED WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COUPE, SEDAN 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 FUSE 8 GRN WIRE GRN/GRY WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/RED WIRE HEADLIGHTS SYSTEM HOOD SW HOT AT ALL TIMES LEFT FRONT DOOR CONTACT SWITCH LEFT REAR DOOR CONTACT SWITCH (SEDAN, WAGON) LOCK PAWL ROTARY TUMBLER SWITCH 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 RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR CONTACT SWITCH RIGHT REAR DOOR CONTACT SWITCH (SEDAN, WAGON) ROOF DRIVE SYSTEM SEDAN, COUPE SEDAN, COUPE WAGON SIG TRUNK LID CENTRAL LOCKING MOTOR TRUNK LID CONTACT SWITCH TRUNK LID EMERGENCY RELEASE SWITCH TRUNK LID EXTERNAL OPERATION SWITCH VIO/BLU WIRE WAGON COUPE WHT WIRE YEL WIRE YEL/BLK WIRE

1-2, 3-4, 5-6, 7-8) 2.6L 3.2L 3.0 BASS MODULE LOUDSPEAKER (2.6L, 3.2L) BLK WIRE BLU/BLK WIRE BRN WIRE BRN/ PNK WIRE BRN/GRN (OR BRN/ORG) WIRE BRN/GRN (OR ORG) WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/PNK (OR BRN/WHT) WIRE BRN/PNK WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE CAN-B L CAN-B H WAKE UP CENTER COCKPIT SPEAKER COMAND OPERATING, DISPLAY, CONTROL MODULE COMPUTER DATA LINES SYSTEM FUSE 26 GRN WIRE GRN/BLK WIRE GRY WIRE HOT AT ALL TIMES INTERIOR FUSE BOX (UNDER LEFT END OF DASH) LEFT FRONT DOOR MIRROR SPEAKER LEFT FRONT DOOR SPEAKER LEFT FRONT DOOR SPEAKER LEFT FRONT DOOR MIRROR SPEAKER LEFT REAR DOOR SPEAKER NCA WIRE NF-L SHLD CLEAR NF-R GND ORG/ WIRE PNK WIRE RED/VIO WIRE RIGHT FRONT DOOR MIRROR SPEAKER RIGHT FRONT DOOR SPEAKER RIGHT REAR DOOR SPEAKER SOUND AMPLIFIER SOUND AMPLIFIER MICROPHONE SUBWOOFER LOUDSPEAKER VIO WIRE W/O AMP W/O AMPLIFIER WAKE 31 WALKMAN SEPERATION POINT WHT WIRE YEL WIRE

1-2, 3-4, 5-6, 7-8) 3.0 BLK WIRE BLU/BLK WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAN-B L CAN-B H WAKE UP CENTER COCKPIT SPEAKER COMAND OPERATING, DISPLAY, CONTROL MODULE COMPUTER DATA LINES SYSTEM GRN WIRE GRN/BLK WIRE GRY WIRE HOT AT ALL TIMES INTERIOR FUSE BOX (UNDER LEFT END OF DASH) FUSE 26 LEFT FRONT DOOR MIRROR SPEAKER LEFT FRONT DOOR MIRROR SPEAKER LEFT REAR DOOR SPEAKER LEFT FRONT DOOR SPEAKER LEFT REAR DOOR SPEAKER NCA WIRE NF-L SHLD CLEAR NF-R GND ORG/ WIRE PNK WIRE RED/VIO WIRE RIGHT FRONT DOOR MIRROR SPEAKER RIGHT FRONT DOOR SPEAKER RIGHT REAR DOOR SPEAKER SOUND AMPLIFIER SOUND AMPLIFIER MICROPHONE SUBWOOFER LOUDSPEAKER VIO WIRE W/O AMP W/O AMPLIFIER WAKE 31 WALKMAN SEPERATION POINT WHT WIRE YEL WIRE

1 2 9 10 8 31 30 CAN L CAN H 31 11 12 CAN-B H CAN-B L 4 5 CAN L CAN H 6 7 CAN-B H CAN-B L BLK WIRE BLU/RED WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CTSY LMP EXCEPT WAGON FRONT DOME 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 FUSE 47 GLOVE COMPARTMENT SWITCH, LAMP HOT AT ALL TIMES HOT IN RUN OR START LEFT FRONT DOOR CONTACT SWITCH LEFT FRONT DOOR CONTROL MODULE LEFT FRONT DOOR ENTRANCE, EXIT LAMP LEFT READING LEFT REAR DOOR CONTACT SWITCH (SEDAN, WAGON) LEFT REAR DOOR CONTROL LEFT REAR DOOR ENTRANCE, EXIT LAMP LEFT VANITY MIRROR LAMP OVERHEAD CONTROL PANEL CONTROL MODULE PNK/RED WIRE REAR DOME REAR DOME LAMP REAR DOME LAMP LEFT TRUNK LAMP REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK) RED WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE RIGHT FRONT DOOR CONTACT SWITCH RIGHT FRONT DOOR CONTROL MODULE RIGHT FRONT DOOR ENTRANCE, EXIT LAMP RIGHT READING RIGHT REAR DOOR CONTACT SWITCH (SEDAN, WAGON) RIGHT REAR DOOR CONTROL MODULE RIGHT REAR DOOR ENTRANCE, EXIT LAMP RIGHT TRUNK LAMP RIGHT VANITY MIRROR LAMP TRUNK AJAR TRUNK LAMP (EXCEPT WAGON) TRUNK LID CONTACT SWITCH VIO/BLU WIRE WAGON YEL 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

2.6L 3.2L 3.0 BLU/BLK WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/PNK (OR BRN/WHT) WIRE BRN/PNK WIRE BRN/VIO WIRE BRN/WHT WIRE CENTER COCKPIT SPEAKER FUSE 26 GRN (OR ORG) WIRE GRN WIRE GRY WIRE HOT AT ALL TIMES INTERIOR FUSE BOX (UNDER LEFT END OF DASH) LEFT FRONT DOOR MIRROR SPEAKER LEFT FRONT DOOR SPEAKER LEFT REAR DOOR SPEAKER NCA WIRE ORG (OR GRN) WIRE ORG/ WIRE PNK WIRE RED/VIO WIRE RIGHT FRONT DOOR MIRROR SPEAKER RIGHT FRONT DOOR SPEAKER RIGHT REAR DOOR SPEAKER SOUND AMPLIFIER SOUND AMPLIFIER MICROPHONE SUBWOOFER LOUDSPEAKER VIO WIRE WAKE 31 WHT WIRE

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 CLEAR CLEAR AM/FM AM/FM 1 2 CLEAR CLEAR ZF ZF 1 2 GPS CLEAR GPS GPS 1 2 ZF CLEAR CLEAR ZF ZF 1 4 2 A-ST FZU 30 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 (SCREEN ANTENNA) ANT BASS MODULE LOUDSPEAKER (2.6L, 3.2L) BLK WIRE BLU/BLK WIRE BRN WIRE BRN/ PNK WIRE BRN/GRN WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE CD PLAYER 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 FRONT DOOR SPEAKER RIGHT REAR 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

1 2 3 4 5 6 7 8 9 10 11 12 CAN-B L CAN-B H FUEL LVL 1 2 CAN-B H CAN-B L 2 3 4 1 KPR 87 15 NA 4 5 CAN-B L CAN-B H ANTI-THEFT SYSTEM BLK WIRE BLK/BRN WIRE BLK/PNK WIRE BLK/RED WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CIRCUIT COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM ENGINE CONTROLS SYSTEM CRASH DEFOGGER SYSTEM DOOR LOCKS SYSTEM ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM ENGINE CONTROLS SYSTEM MEMORY SYSTEM FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUEL PUMP RELAY FUSE 10 FUSE 12 FUSE 13 FUSE 14 FUSE 16 FUSE 17 FUSE 2 FUSE 2 FUSE 1 FUSE 20 FUSE 4 FUSE 8 GRN WIRE GRN/GRY WIRE HOT AT ALL TIMES INTERIOR SOCKET KPR NA LF DOOR FUEL LVL CRASH FUEL LVL LR DOOR RF DOOR RR DOOR PASSIVE RESTRAINTS SYSTEM PASSIVE RESTRAINTS SYSTEM PNK LF COMFORT RF COMFORT WIRE PNK/RED WIRE POWER WINDOWS SYSTEM REAR DEFOGGER RELAY REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK) RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RELAY SEATS SYSTEM SEATS SYSTEM WIPER/ WASHER SYSTEM SIG SIG TELEPHONE WIRING VIO/BLU 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