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

13 2 1 SRA CAN-B L CAN-B H BRN WIRE BRN/BLU WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM FRONT PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 4 FUSE 6 HCS PUMP (IN LEFT WHEELWELL, ON WASHER FLUID RESERVOIR) HEADLAMP CLEANING SYSTEM (HCS) SWITCH HOT AT ALL TIMES LAMP SWITCH MODULE RED WIRE RED/GRY WIRE SRA

17 18 12 13 CAN-B L CAN-B H CAN-B L CAN-B H 2 1 CAN L CAN H 4 5 CAN L CAN H 56 NSL 6 5 2 1 4 3 R LO BEAM R HI BEAM R FOG L FOG L LO BEAM L HI BEAM 9 10 CAN-B L CAN-B H BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM EXTERIOR LAMPS FOG LAMP FOG LAMP IND FRONT PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 4 FUSE 62 GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/PNK WIRE GRN/RED WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/YEL WIRE HEADLAMP WASH HIGH BEAM INDICATOR HIGH BEAM LOW BEAM HOT AT ALL TIMES HOT AT ALL TIMES FUSE 63 HOT IN RUN OR START FUSE 50 INSTRUMENT CLUSTER LAMP SWITCH MODULE LEFT FRONT HEADLAMP UNIT LEFT RIGHT MIRROR FOLD- MIRROR SELECT MIRROR ADJUST OUT IN OVERHEAD CONTROL PANEL CONTROL MODULE PARK HEAD OFF AUTO RED WIRE RIGHT FRONT FOG LAMP LEFT FRONT FOG LAMP RIGHT FRONT HEADLAMP UNIT SRA WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

17 18 12 13 CAN-B L CAN-B H CAN-B L CAN-B H 2 1 CAN L CAN H 4 5 CAN L CAN H 56 NSL 6 5 2 4 3 1 R LO BEAM R HI BEAM R FOG L LO BEAM L HI BEAM L FOG 9 10 CAN-B L CAN-B H BLK WIRE BLK/GRN WIRE BLK/PNK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM DIAG EXTERIOR LAMPS FOG LAMP FOG LAMP IND FRONT AXLE SENSOR (RIGHT FRONT WHEEL HOUSE) FRONT PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 4 GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/PNK WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HEADLAMP RANGE ADJUSTMENT MOTOR HEADLAMP WASH HIGH BEAM INDICATOR HIGH XENON BEAM XENON BEAM HOT AT ALL TIMES HOT AT ALL TIMES FUSE 62 HOT AT ALL TIMES FUSE 63 HOT IN RUN OR START FUSE 50 HOT IN RUN OR START FUSE 51 IN OUT INSTRUMENT CLUSTER LAMP SWITCH MODULE LEFT FRONT FOG LAMP LEFT FRONT HEADLAMP UNIT LEFT RIGHT MIRROR ADJUST MIRROR FOLD- MIRROR SELECT OVERHEAD CONTROL PANEL CONTROL MODULE PARK HEAD OFF AUTO REAR AXLE SENSOR (RIGHT SIDE OF REAR AXLE) RED WIRE RED/GRN WIRE RED/YEL WIRE RIGHT FRONT FOG LAMP RIGHT FRONT HEADLAMP UNIT SRA WHT WIRE WHT/BLK WIRE WHT/RED WIRE XENON CONTROL HIGH XENON BEAM XENON MODULE BEAM XENON IGNITION MODULE XENON XENON IGNITION CONTROL MODULE MODULE YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

12 11 CAN-B L CAN-B H 3 4 5 ILLUM CAN-B L CAN-B H 7 6 CAN-B L CAN-B H AUTOMATIC TRANSMISSION PROGRAM SELECTOR PUSHBUTTON BLK WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/YEL WIRE CAN-B L CAN-B H ILLUM CENTER AIR OUTLET ILLUMINATION CLOCK- SPRING COMPUTER DATA LINES SYSTEM EXTERIOR LAMPS FOG LAMP FOG LAMP IND FRONT ASHTRAY ILLUMINATION FRONT CIGAR LIGHTER REAR BLOWER ELECTRONIC SELECTOR WHEEL FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 4 GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/PNK WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HEADLAMP WASH HOT AT ALL TIMES HOT AT ALL TIMES FUSE 62 HOT AT ALL TIMES FUSE 63 ILLUM ILLUMINATION ILLUMINATION RHEOSTAT IN OUT INSTRUMENT CLUSTER LAMP SWITCH MODULE LEFT AIR OUTLET ILLUMINATION LEFT REAR DOOR CONTROL MODULE LEFT REAR POWER WINDOW SWITCH LEFT RIGHT MB-INFO, BREAKDOWN ASSISTANCE BUTTON GROUP MIRROR FOLD- MIRROR SELECT MIRROR ADJUST NCA WIRE PARK HEAD OFF AUTO RED WIRE RELAY ENERGIZED FUSE 50 RELAY ENERGIZED FUSE 51 RIGHT AIR OUTLET ILLUMINATION RIGHT FRONT DOOR CONTROL MODULE RIGHT FRONT POWER WINDOW SWITCH RIGHT REAR DOOR CONTROL MODULE RIGHT REAR POWER WINDOW SWITCH SOS PUSH BUTTON SWITCH SRA STEERING WHEEL MULTI- FUNCTION SWITCHES YEL WIRE

1 2 3 6 7 8 ESA SW ESA SW ESA SW ESA SW ESA SW ESA SW 10 7 8 9 POS 1 (+) POS 1 (-) 10 7 8 9 POS 2 (+) POS 1 (-) 2 1 CAN L CAN H 4 5 CAN L CAN H 6 7 5 4 CAN-B H CAN-B L 30 31 AUTO DIM 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 COMMON COMPUTER DATA LINES SYSTEM DIM DIM HEAT HEAT LIGHT LIGHT EXTERIOR LAMPS FOG LAMP FOG LAMP IND FRONT PRE-FUSE BOX (AT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 4 FUSE 6 GRN/BLK WIRE GRN/GRY WIRE GRN/PNK WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HEAD HEADLAMP WASH HEATING ELEMENT HOT AT ALL TIMES HOT AT ALL TIMES FUSE 62 HOT AT ALL TIMES FUSE 63 HOT IN RUN OR START FUSE 50 IN OUT LAMP SWITCH MODULE LEFT EXTERIOR TURN SIGNAL MIRROR LAMP LEFT FRONT DOOR CONTROL MODULE (IN DRIVER'S DOOR) LEFT FRONT DOOR ESA(ESV) SWITCH GROUP LEFT RIGHT MEMORY LOCATION MEMORY STORE MIRROR ADJUST MIRROR FOLD- MIRROR SELECT NCA WIRE NSL PARK OFF AUTO RED WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT EXTERIOR TURN SIGNAL MIRROR LAMP RIGHT FRONT DOOR CONTROL MODULE SH SH- SRA TURN HEATING SIGNAL ELEMENT TURN SIGNAL WHT WIRE YEL/GRN WIRE YEL/WHT WIRE