Mercedes-Benz C-class W203/S203/CL203 facelift (2004-2008) brn/pnk Wiring diagrams

"B" PILLAR) 3 4 SIG 31 30 CAN B L CAN B H 4 5 CAN-B L CAN-B H 4 6 LOW BEAM LOW BEAM 6 9 2 12 PARK LAMP TURN LAMP PARK LAMP TURN LAMP 7 8 TURN SIG TURN SIG ALARM SIGNAL HORN ATA HOOD SWITCH BLK WIRE BLK/ GRN WIRE BLK/GRN WIRE BLK/WHT WIRE BLU WIRE 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 CONTACT SWITCH (AT RIGHT "B" PILLAR) CONTACT SWITCH (SEDAN, WAGON) (AT RIGHT "C" PILLAR) FRONT PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 2 FUSE 4 GRN WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/RED WIRE HEADLIGHTS SYSTEM HOOD SW HOT AT ALL TIMES HOT AT ALL TIMES FUSE 8 LEFT FRONT DOOR CONTACT SWITCH (AT LEFT LEFT REAR DOOR CONTACT SWITCH NCA WIRE OVERHEAD CONTROL PANEL CONTROL MODULE PAWL ROTARY TUMBLER SWITCH (CENTER REAR OF TAILGATE) (COUPE) (SEDAN) PNK/RED WIRE REAR PANEL CL (ZV) MOTOR REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) RED WIRE RED/BLU WIRE RED/GRY WIRE RED/YEL WIRE RIGHT REAR DOOR ROOF DRIVE SYSTEM (COUPE) (AT FRONT CENTER OF ROOF) SCREEN ANTENNA AMPLIFIER MODULE 1 (LEFT REAR OF ROOF) SCREEN ANTENNA AMPLIFIER MODULE 2 SEDAN, COUPE TRUNK LID CONTACT SWITCH (AT CENTER REAR OF TRUNK LID) TRUNK LID EMERGENCY RELEASE SWITCH (SEDAN) (AT REAR OF TRUNK LID) TRUNK LID EXTERNAL OPERATION SWITCH (SEDAN) (IN TRUNK LID) VIO WIRE VIO/BLU WIRE WAGON WHT WIRE YEL WIRE YEL/BLK WIRE

1 2 CAN B L CAN B H 1 2 MOST 1 2 3 4 5 6 7 8 9 10 11 12 13 IN OUT 30 WAKE UP 4 5 CAN L CAN H BLK WIRE BLU/BLK WIRE BRN WIRE BRN/GRN WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE COMMAND OPERATING, DISPLAY, CONTROL MODULE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM EMERGENCY CALL SYSTEM CONTROL UNIT (W/O SOUND SYSTEM) (FRONT OF CARGO AREA) FAN MOTOR 1 WALKMAN SEPERATION POINT FAN MOTOR 2 FRONT PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL UNIT, WITH FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 2 FUSE 4 GPS 1 2 3 4 5 6 7 8 GRN WIRE HOT AT ALL TIMES MUTE NCA WIRE ORG/ WIRE PNK WIRE RADIO ADDITIONAL FAN (FRONT OF CENTER CONSOLE) REAR SAM CONTROL UNIT WITH FUSE, RELAY MODULE (AT LEFT SIDE OF TRUNK) RED WIRE RED/BLU WIRE RED/GRY WIRE RED/YEL WIRE SCREEN ANTENNA AMPLIFIER MODULE 1 (WAGON) (LEFT REAR OF ROOF) SCREEN ANTENNA AMPLIFIER MODULE 2 (TOP LEFT OF TAILGATE) WAGON COUPE, SEDAN WAKE UP SIGNAL CONNECTOR WHT WIRE YEL WIRE YEL/BLK WIRE ZF 1 2 3 4 5 6 7 8 9 10 11 12

1 2 CAN B L CAN B H 1 2 MOST 1 2 3 4 5 6 7 8 9 10 11 12 13 IN OUT 30 WAKE UP 4 5 CAN L CAN H BLK WIRE BLU/BLK WIRE BRN WIRE BRN/GRN WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE COMMAND OPERATING, DISPLAY, CONTROL MODULE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM EMERGENCY CALL SYSTEM CONTROL UNIT (W/O SOUND SYSTEM) (FRONT OF CARGO AREA) FAN MOTOR 1 WALKMAN SEPERATION POINT FAN MOTOR 2 FRONT PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL UNIT, WITH FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 2 FUSE 4 GPS 1 2 3 4 5 6 7 8 GRN WIRE HOT AT ALL TIMES MUTE NCA WIRE ORG/ WIRE PNK WIRE RADIO ADDITIONAL FAN (FRONT OF CENTER CONSOLE) REAR SAM CONTROL UNIT WITH FUSE, RELAY MODULE (AT LEFT SIDE OF TRUNK) RED WIRE RED/BLU WIRE RED/GRY WIRE RED/YEL WIRE SCREEN ANTENNA AMPLIFIER MODULE 1 (WAGON) (LEFT REAR OF ROOF) SCREEN ANTENNA AMPLIFIER MODULE 2 (TOP LEFT OF TAILGATE) WAGON COUPE, SEDAN WAKE UP SIGNAL CONNECTOR WHT WIRE YEL WIRE YEL/BLK WIRE ZF 1 2 3 4 5 6 7 8 9 10 11 12

1 MOST IN 2 MOST OUT BASS MODULE LOUD SPEAKER (SEDAN) BRN/GRN WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/WHT WIRE CD CHANGER EMERGENCY CALL SYSTEM CONTROL UNIT (FRONT OF CARGO AREA) GPS GPS ANTENNA (WAGON: AT TOP LEFT OF TAILGATE) GPS ANTENNA SPLITTER GRN WIRE LEFT FRONT DOOR MIRROR TRIANGLE SPEAKER (WAGON) (SEDAN) (COUPE) LEFT FRONT DOOR SPEAKER (WAGON) (SEDAN) (COUPE) LEFT REAR DOOR SPEAKER (WAGON) (SEDAN) (COUPE) NCA WIRE ORG/ WIRE PNK WIRE RIGHT FRONT DOOR MIRROR TRIANGLE SPEAKER (WAGON) (SEDAN) (COUPE) RIGHT FRONT DOOR SPEAKER (WAGON) (SEDAN) (COUPE) RIGHT REAR DOOR SPEAKER (WAGON) (SEDAN) (COUPE) SOUND AMPLIFIER W/O SOUND SYSTEM WHT WIRE

1 MOST IN 2 MOST OUT BASS MODULE LOUD SPEAKER (SEDAN) BRN/GRN WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/WHT WIRE CD CHANGER EMERGENCY CALL SYSTEM CONTROL UNIT (FRONT OF CARGO AREA) GPS GPS ANTENNA (WAGON: AT TOP LEFT OF TAILGATE) GPS ANTENNA SPLITTER GRN WIRE LEFT FRONT DOOR MIRROR TRIANGLE SPEAKER (WAGON) (SEDAN) (COUPE) LEFT FRONT DOOR SPEAKER (WAGON) (SEDAN) (COUPE) LEFT REAR DOOR SPEAKER (WAGON) (SEDAN) (COUPE) NCA WIRE ORG/ WIRE PNK WIRE RIGHT FRONT DOOR MIRROR TRIANGLE SPEAKER (WAGON) (SEDAN) (COUPE) RIGHT FRONT DOOR SPEAKER (WAGON) (SEDAN) (COUPE) RIGHT REAR DOOR SPEAKER (WAGON) (SEDAN) (COUPE) SOUND AMPLIFIER W/O SOUND SYSTEM WHT WIRE

1 2 9 10 4 31 30 CAN-B L CAN-B H 31 11 12 CAN-B H CAN-B L 4 5 CAN-B L CAN-B 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 CONTACT SWITCH (SEDAN, WAGON) (AT RIGHT "C" PILLAR) CTSY LMP EXCEPT WAGON FRONT DOME FRONT PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FUSE 2 FUSE 4 GLOVE COMPARTMENT SWITCH, LAMP HOT AT ALL TIMES HOT AT ALL TIMES FUSE 9 LEFT FRONT DOOR CONTACT SWITCH LEFT FRONT DOOR CONTROL MODULE LEFT FRONT DOOR ENTRANCE, EXIT LAMP LEFT FRONT READING LEFT READING LEFT REAR DOOR CONTACT SWITCH (SEDAN, WAGON) (AT LEFT "C" PILLAR) LEFT REAR DOOR CONTROL LEFT VANITY MIRROR LAMP OVERHEAD CONTROL PANEL CONTROL MODULE PNK/RED WIRE REAR DOME REAR DOME LAMP REAR LEFT DOME TRUNK LAMP LAMP REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) RED WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE RELAY ENERGIZED RIGHT FRONT DOOR CONTACT SWITCH (AT RIGHT "B" PILLAR) RIGHT FRONT DOOR CONTROL MODULE RIGHT FRONT DOOR ENTRANCE, EXIT LAMP RIGHT FRONT READING RIGHT READING RIGHT REAR DOOR RIGHT REAR DOOR CONTROL MODULE RIGHT TRUNK LAMP RIGHT VANITY MIRROR LAMP TRUNK AJAR TRUNK LAMP TRUNK LID CONTACT SWITCH (AT CENTER REAR OF TRUNK LID) VIO/BLU WIRE WAGON YEL WIRE

"C" PILLAR) 1 2 9 10 31 30 CAN-B L CAN-B H 17 18 12 13 CAN-B L CAN-B H CAN-C L CAN-C H 2 3 4 KPR 87 15 2 3 FUEL CAP FUEL CAP 3 4 CAN-B L CAN-B H 4 5 CAN-B L CAN-B H BLK WIRE BLU WIRE 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 CONTACT SWITCH (SEDAN, WAGON) (AT RIGHT "C" PILLAR) COUPE, SEDAN DISPLAY DOOR CONTACT SWITCH (AT RIGHT "B" PILLAR) DOOR CONTACT SWITCH (SEDAN, WAGON) (AT LEFT FRONT PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FUEL FILLER FLAP CL MOTOR (AT RIGHT SIDE OF TRUNK) 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 NCA WIRE OVERHEAD CONTROL PANEL CONTROL MODULE PAWL ROTARY TUMBLER SWITCH (COUPE, SEDAN) (CENTER REAR OF TAILGATE) PNK/RED WIRE REAR PANEL CL (ZV) MOTOR REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) RED WIRE RED/BLU WIRE RIGHT FRONT RIGHT REAR DOOR ROOF DRIVE SYSTEM (COUPE) (AT FRONT CENTER OF ROOF) SEDAN, COUPE TRUNK LID CONTACT SWITCH (AT CENTER REAR OF TRUNK LID) TRUNK LID EMERGENCY RELEASE SWITCH (SEDAN) (AT REAR OF TRUNK LID) TRUNK LID EXTERNAL OPERATION SWITCH (SEDAN) (IN TRUNK LID) UPPER CONTROL PANEL CONTROL MODULE VIO WIRE VIO/BLU WIRE WHT WIRE YEL WIRE YEL/BLU WIRE YEL/GRN 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

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/GRN 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 (SEDAN, WAGON) (LEFT SIDE OF TRUNK) 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 FRONT PRE-FUSE BOX (AT 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 2 FUSE 2 FUSE 1 FUSE 4 FUSE 7 HOT AT ALL TIMES HOT AT ALL TIMES FUSE 18 HOT AT ALL TIMES FUSE 19 HOT AT ALL TIMES FUSE 17 HOT AT ALL TIMES FUSE 20 HOT AT ALL TIMES FUSE 8 KPR MEMORY, ENGINE SEATS CONTROLS SYSTEMS SYSTEM NA LF DOOR FUEL LVL CRASH FUEL LVL LR DOOR RF DOOR RR DOOR PNK/RED WIRE POWER DISTRIBUTION SYSTEM POWER WINDOWS SYSTEM REAR DEFOGGER RELAY REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RELAY SDAR CONTROL UNIT (AT RIGHT REAR OF TRUNK) SEATS SYSTEM SIG TO REVERSE 1 RELAY (DIAGRAM 2 OF 2) VIO/BLU WIRE WIPER/ SEATS SYSTEM WASHER SYSTEM

BELT BELT TENSION SENSOR (IN LEFT FRONT FOOTWELL) 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/GRY WIRE BRN/PNK WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAN L CAN-L CAN-H COMPUTER DATA LINES SYSTEM CRASH CRASH SIG 31 31 DRIVER SEAT BELT BUCKLE RESTRAINT SYSTEMS SWITCH DRVR BELT UPFRONT R ETR LF- ETR LF+ ETR RF+ ETR RF- ETR LR- ETR LR+ ETR RR+ ETR RR- PASS BELT FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) GRN WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE LEFT AIRBAGS SENSOR (UNDER LEFT REAR SEAT) LEFT FRONTAL ACCEL- ERATION SENSOR LEFT REAR ETR SQUIB (UNDER LEFT REAR SEAT) PASSENGER SEAT BELT BUCKLE RESTRAINT SYSTEMS SWITCH PNK WIRE PNK/BLK WIRE PRESS. PRESSURE SENSOR (UNDER RIGHT FRONT SEAT) RED WIRE RED/GRN WIRE RED/VIO WIRE RED/YEL WIRE RESTRAINT SYSTEMS CONTROL MODULE (UNDER FRONT OF CENTER CONSOLE) RIGHT AIRBAGS SENSOR (UNDER RIGHT REAR SEAT) RIGHT FRONTAL ACCEL- ERATION SENSOR RIGHT REAR ETR SQUIB (UNDER RIGHT REAR SEAT) SB LF- SB LF+ SB RF+ SB RF- SB LR- SB LR+ SB RR+ SB RR- WB L- WB L+ WB R+ WB R- SIDE L SIDE R UPFRONT L VIO WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/YEL WIRE WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT (UNDER RIGHT FRONT SEAT) WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE