Mercedes-Benz C-class AMG W203/S203/CL203 facelift (2004-2007) bus circuit) Wiring diagrams

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

3.0 BLU/BLK WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE BUS CIRCUIT) COUPE GRN (OR ORG) WIRE 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 LEFT REAR DOOR SPEAKER CENTER COCKPIT SPEAKER NCA WIRE ORG/ WIRE PNK (OR WHT) WIRE PNK WIRE RED/VIO WIRE RIGHT FRONT DOOR MIRROR SPEAKER RIGHT FRONT DOOR SPEAKER RIGHT REAR DOOR SPEAKER SEDAN SOUND AMPLIFIER MICROPHONE SUBWOOFER LOUDSPEAKER VIO WIRE WAGON WAKE 31 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 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 TRUNK LID/ FFS SEPARATION POINT 4 3 1 2 PNK WIRE AIRBAG SIG RF SW CAN L CAN H UNLOCK SOS LED INFO SW LED PNK WIRE AUX. ANTENNA AUXILIARY BATTERY BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/YEL WIRE BRN WIRE BRN/RED WIRE BUS CIRCUIT) COMPUTER DATA LINES SYSTEM CTEL ANTENNA EMERGENCY CALL SPARE ANTENNA FREQUENCY SWITCHOVER CONTROL MODULE FRONT SAM CONTROL MODULE FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 40 GPS GPS ANTENNA GRN WIRE GRN/BLK WIRE GRY/BLU WIRE GRY/WHT WIRE HOT AT ALL TIMES INTERIOR FUSE BOX (LEFT SIDE OF DASH) LEFT FRONT EMERGENCY CALL SPEAKER MB-INFO, BREAKDOWN ASSISTANCE SWITCH MIC + MIC - MIC - MIC + DIAG MUTE RAP SW 30 30 +AUX. BATT NAVIGATION SYSTEM (VOICE ACTIVATION CIRCUIT) NCA WIRE ORG/ WIRE RADIO/COMMAND OPERATING, DISPLAY, CONTROL UNIT OR RADIO REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK) RED WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE SOS PUSHBUTTON SWITCH SOS SW INFO LED 31 31 TELE AID TRANSMITTER/ RECEIVER (AT FRONT OF CARGO AREA) TELEPHONE SYSTEM WAKE-UP WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/RED WIRE YEL/VIO WIRE

31 WAKE UP MIC+ MIC- BLK/YEL WIRE BLU/BLK WIRE BRN WIRE BUS CIRCUIT) FUSE 13 HANDS-FREE MICROPHONE - HOT AT ALL TIMES FUSE 16 HOT IN ACC, RUN OR START NCA WIRE ORG/ WIRE REAR SAM CONTROL MODULE FUSE, RELAY MODULE (LEFT SIDE OF TRUNK) RED/BLK WIRE TELE AID TRANSMITTER/ RECEIVER VOICE CONTROL SYSTEM CONTROL MODULE WHT WIRE