Mercedes-Benz C-class AMG W203/S203/CL203 facelift (2004-2007) computer data lines system Wiring diagrams

1 2 3 31 30 WAKE 1 2 CAN B L CAN B H 2 1 30 DIAG 4 3 2 30 FZU CONTROL 4 5 CAN L CAN H 6 29 23 DIAG WAKE MUTE A-ST FZU 30 31 AM/FM AM/FM AMFM CLEAR CLEAR ZF ZF AMPLIFIER MODULE 1 (SCREEN ANTENNA) AMPLIFIER MODULE 2 BLK WIRE BLU/BLK WIRE BRN WIRE BRN/RED WIRE CD CHANGER CLEAR CLEAR CLEAR CLEAR AM/FM AM/FM CLEAR GPS GPS COMMAND OPERATING, DISPLAY, CONTROL MODULE COMPUTER DATA LINES SYSTEM CTEL INTERFACE (IF EQUIPPED) DIAG MUTE 30 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 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 SDAR CONTROL UNIT (RIGHT REAR OF TRUNK) TELE AID TRANSMITTER/ RECEIVER (FRONT OF SPARE TIRE WELL) VOICE CONTROL MODULE (IF EQUIPPED) WAKE WAKE UP SIGNAL CONNECTOR WAKE-UP YEL/BLK WIRE ZF ZF

1-2, 3-4, 5-6, 7-8) 3.0 BLK WIRE BLU/BLK WIRE BRN WIRE BRN/GRN (OR BRN/ORG) 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 COMMAND OPERATING, DISPLAY, CONTROL MODULE COMPUTER DATA LINES SYSTEM COUPE GRN 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 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 MIRROR SPEAKER RIGHT FRONT DOOR SPEAKER RIGHT FRONT DOOR SPEAKER RIGHT REAR DOOR SPEAKER SEDAN SOUND AMPLIFIER SOUND AMPLIFIER MICROPHONE SUBWOOFER LOUDSPEAKER VIO WIRE W/O AMP W/O AMPLIFIER WAGON WAKE 31 WALKMAN SEPARATION POINT WHT WIRE YEL 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 BLU/GRY WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM COUPE ELECTRONIC SELECTOR LEVER CONTROL MODULE (AT BASE OF SELECTOR LEVER) FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FUSE 2 FUSE 21 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES INTERIOR FUSE BOX (UNDER LEFT END OF DASH) INTERIOR REARVIEW MIRROR UNIT LEFT EXTERIOR MIRROR LEFT FRONT DOOR CONTROL MODULE MIRROR SENSOR (BACK) MIRROR SENSOR (FRONT) AUTO DIM NCA WIRE OVERHEAD CONTROL PANEL CONTROL MODULE PNK/BLK WIRE PNK/RED WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK) RED WIRE RED/BLU WIRE RED/WHT WIRE SEDAN, COVERTIBLE

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 (UNDER LEFT END OF DASH) LEFT FRONT HEATED BACKREST CUSHION LEFT FRONT HEATED SEAT CUSHION LEFT FRONT HEATED SEAT SWITCHES 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

2 1 CAN L CAN H 3 9 4 6 1 7 5 10 8 U/D MTR COMMON L/R MTR DIM DIM HEAT HEAT TURN TURN 3 9 4 7 5 10 8 U/D MTR COMMON L/R MTR HEAT HEAT TURN TURN 4 3 FOLD FOLD 4 5 CAN L CAN H 6 7 5 4 CAN-B H CAN-B L 30 31 BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLK/YEL WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM EXTERIOR LAMPS FOG LAMP FOG LAMP IND FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 21 FUSE 4 FUSE 50 FUSE 6 FUSE 62 FUSE 63 GRN WIRE GRN/BLK WIRE GRN/PNK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HEAD HEADLAMP WASH HEATING ELEMENT HEATING ELEMENT LEFT/ RIGHT MOTOR HOT AT ALL TIMES HOT IN RUN OR START IN OUT INTERIOR FUSE BOX (UNDER LEFT END OF DASH) FUSE 22 LAMP SWITCH MODULE LEFT EXTERIOR MIRROR LEFT FRONT DOOR CONTROL MODULE LEFT RIGHT LEFT/ RIGHT MOTOR AUTO DIM MIRROR ADJUST MIRROR FOLD- MIRROR SELECT NCA WIRE PARK OFF AUTO PNK/BLK WIRE PNK/RED WIRE RED WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT EXTERIOR MIRROR RIGHT FRONT DOOR CONTROL MODULE TURN SIGNAL UP/ DOWN MOTOR FOLD-IN MOTOR WHT WIRE YEL WIRE

1 2 3 4 5 6 9 10 11 SHD (+) SHD (-) 1 2 CAN B L CAN B H 31 UKB UKB UKB 9 10 CAN-B L CAN-B H BRN WIRE BRN/GRY WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FUSE 2 HALL SENSOR 1 HALL SENSOR 2 HOT AT ALL TIMES NCA WIRE OBSTRUCTION SENSOR OVERHEAD CONTROL PANEL CONTROL MODULE POWER ROOF SWITCH REAR ROLLER BLIND (IF EQUIPPED) REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK) RED WIRE RED/BLU WIRE ROOF DRIVE SYSTEM ROOF MOTOR

1 2 3 4 5 6 7 8 9 10 SW GROUP SW GROUP SW GROUP SW GROUP SW GROUP 1 2 3 6 (-) H SIG 1 H SIG 2 H (-) 1 2 FH T FH H 11 12 CAN-B H CAN-B L 4 5 FH T FH H 6 5 4 1 (+) H SIG 1 H SIG 2 H (-) 6 7 5 4 CAN-B H CAN-B L 30 31 BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER POWER WINDOW SWITCH GROUP FH VR FUSE 21 FUSE 22 FUSE 33 GRN WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES INTERIOR FUSE BOX (UNDER LEFT END OF DASH) FUSE 32 LEFT FRONT DOOR CONTROL MODULE LEFT FRONT POWER WINDOW MOTOR LEFT FRONT WINDOW RIGHT FRONT WINDOW LEFT REAR DOOR CONTROL MODULE (IF EQUIPPED) LEFT REAR POWER WINDOW MOTOR LEFT REAR POWER WINDOW SWITCH LEFT REAR WINDOW RIGHT REAR WINDOW REAR WINDOWS LOCKOUT RED WIRE RED/BLK WIRE RED/WHT WIRE RF W/L RIGHT FRONT DOOR CONTROL MODULE RIGHT FRONT POWER WINDOW MOTOR RIGHT FRONT POWER WINDOW SWITCH RIGHT REAR DOOR CONTROL MODULE (IF EQUIPPED) RIGHT REAR POWER WINDOW MOTOR RIGHT REAR POWER WINDOW SWITCH SW GROUP SW GROUP SW GROUP SW GROUP TRUNK LID RELEASE WHT WIRE YEL WIRE

1 2 3 31 30 WAKE 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, 3-4, 5-6, 7-8) 2 1 30 DIAG 4 3 2 30 FZU ANT 4 5 CAN L CAN H 6 29 23 DIAG WAKE UP MUTE A-ST FZU 30 31 AM/FM AM/FM AMFM CLEAR CLEAR ZF ZF AMPLIFIER MODULE 1 AMPLIFIER MODULE 2 ANT BASS MODULE LOUDSPEAKER (SEDAN, WAGON) 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 BUS CIRCUIT) CD CHANGER CLEAR CLEAR CLEAR CLEAR RF RF CLEAR GPS GPS COMPUTER DATA LINES SYSTEM 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) GPS RADIO GRN WIRE GRN/BLK WIRE HOT AT ALL TIMES LEFT FRONT DOOR MIRROR SPEAKER LEFT FRONT DOOR SPEAKER LEFT REAR DOOR SPEAKER NCA WIRE ORG/ WIRE PNK WIRE 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 SDAR CONTROL UNIT (RIGHT REAR OF TRUNK) TELE AID TRANSMITTER/ RECEIVER UNIVERSAL PORTABLE CTEL INTERFACE (IF EQUIPPED) VOICE CONTROL SYSTEM CONTROL MODULE (AT FRONT CARGO AREA) WAKE UP 30 31 WAKE UP SIGNAL CONNECTOR WAKE-UP WHT WIRE YEL/BLK WIRE ZF 2 1 ZF ZF

1 2 3 31 30 WAKE 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 IN OUT 1-2, 3-4, 5-6, 7-8) 2 1 30 DIAG 4 3 2 30 FZU ANT 4 5 CAN L CAN H 6 29 23 DIAG WAKE UP MUTE A-ST FZU 30 31 AM/FM AM/FM AMFM CLEAR CLEAR ZF ZF AMPLIFIER MODULE 1 AMPLIFIER MODULE 2 ANT BASS MODULE LOUDSPEAKER (SEDAN, WAGON) 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 BUS CIRCUIT) CD CHANGER CLEAR CLEAR CLEAR CLEAR RF RF CLEAR GPS GPS COMPUTER DATA LINES SYSTEM 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) GPS RADIO GRN WIRE GRN/BLK WIRE HOT AT ALL TIMES LEFT FRONT DOOR MIRROR SPEAKER LEFT FRONT DOOR SPEAKER LEFT REAR DOOR SPEAKER NCA WIRE ORG/ WIRE PNK WIRE 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 SDAR CONTROL UNIT (RIGHT REAR OF TRUNK) TELE AID TRANSMITTER/ RECEIVER UNIVERSAL PORTABLE CTEL INTERFACE (IF EQUIPPED) VOICE CONTROL SYSTEM CONTROL MODULE (AT FRONT CARGO AREA) WAKE UP 30 31 WAKE UP SIGNAL CONNECTOR WAKE-UP WHT WIRE YEL/BLK WIRE ZF 2 1 ZF ZF

1 2 CAN B L CAN B H 3 2 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 COUPE FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FUSE 2 FUSE 20 FUSE 25 FUSE 41 GRN WIRE HOT AT ALL TIMES HTO AT ALL TIMES INTERIOR FUSE BOX (UNDER LEFT END OF DASH) REAR BLIND SWITCH REAR ROLLER BLIND MOTOR REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK) REAR SCREEN BLIND RELAY (LEFT SIDE OF TRUNK) RED WIRE RED/BLU WIRE RED/GRN WIRE UPPER CONTROL PANEL CONTROL MODULE WHT WIRE