Mercedes-Benz C-class W203/S203/CL203 facelift (2004-2008) upper control panel control module Wiring diagrams

1 6 5 8 7 ESA CAN-C H CAN-C L CAN-B H CAN-B L 11 12 CAN-B H CAN-B L 17 18 12 13 CAN-B L CAN-B H CAN-C L CAN-C H 2 3 DOOR MOTOR DOOR MOTOR 3 4 CAN-B L CAN-B H 41 54 CAN-B H CAN-B L 6 7 5 4 CAN-B H CAN-B L 30 31 8 6 7 3 2 IR REC IR REC IR REC DOOR MOTOR DOOR MOTOR BLK WIRE BRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM DISPLAY ELECTRONIC STEERING LOCK CONTROL MODULE (ON STEERING COLUMN) ESA FUSE 21 FUSE 22 FUSE 33 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT AT ALL TIMES INTERIOR FUSE BOX (LEFT END OF DASH) FUSE 32 INSTRUMENT CLUSTER INTERIOR CENTRAL LOCKING SWITCH LEFT FRONT DOOR CL MOTOR (AT REAR OF DRIVER'S DOOR) LEFT FRONT DOOR CONTROL MODULE (IN DRIVER'S DOOR) LEFT FRONT IR RECEIVER UNIT (AT REAR OF LEFT FRONT DOOR) LEFT REAR DOOR CL MOTOR (AT REAR OF LEFT REAR DOOR) LEFT REAR DOOR CONTROL MODULE ME-SFI CONTROL MODULE (AT LEFT REAR OF ENGINE COMPARTMENT) RED WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE RIGHT FRONT DOOR CL MOTOR (AT REAR OF RIGHT FRONT DOOR) RIGHT FRONT DOOR CONTROL MODULE RIGHT FRONT IR RECEIVER UNIT (AT REAR OF RIGHT FRONT DOOR) RIGHT REAR DOOR CL MOTOR (AT REAR OF RIGHT REAR DOOR) RIGHT REAR DOOR CONTROL MODULE UPPER CONTROL PANEL CONTROL MODULE WHT WIRE WHT/RED WIRE

1 2 CAN B L CAN B H 12 13 11 10 CAN-B L CAN-B H CAN-B L CAN-B H 24 25 23 R LICENSE L LICENSE CHMSL 3 4 CAN-B L CAN-B H 31 RS 9 10 CAN-B L CAN-B H BACK- UP LAMP STOP LAMP BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE CENTER HIGH MOUNT STOP LAMP COMBINATION SWITCH COMPUTER DATA LINES SYSTEM COUPE, SEDAN, WAGON FRONT PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FUSE 2 FUSE 4 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE GRY/VIO WIRE GRY/YEL WIRE HAZARD SWITCH HOT AT ALL TIMES LEFT REAR SIDE MARKER LAMP (COUPE) LEFT TAIL LAMP UNIT LEFT TRUNK LAMP LEFT, RIGHT TURN SIGNAL SWITCH OVERHEAD CONTROL PANEL CONTROL MODULE PNK/RED WIRE RAIN/ LIGHT SENSOR (AT FRONT OF HEADLINER) REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK) RED WIRE RIGHT LICENSE PLATE LAMP LEFT LICENSE PLATE LAMP RIGHT REAR SIDE MARKER LAMP (COUPE) RIGHT TAILLAMP UNIT RIGHT TRUNK LAMP SEDAN WAGON STEERING COLUMN MODULE (AT TOP OF STEERING COLUMN) TAIL/ PARK LAMP TURN SIGNAL LAMP TURN SIGNAL LAMP TAIL/ PARK LAMP BACK- UP LAMP STOP LAMP UPPER CONTROL PANEL CONTROL MODULE VIO WIRE VIO/BLU WIRE WHT WIRE YEL WIRE

6 7 5 4 CAN-B H CAN-B L 30 31 7 5 HEAT HEAT 7 5 SH (+) SH (-) AAC PUSHBUTTON CONTROL MODULE, COMFORT AAC PUSHBUTTON CONTROL MODULE BLK WIRE BLK/RED WIRE BLU WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE CAN-B H CAN-B L 30 COMPUTER DATA LINES SYSTEM DEFROSTER SWITCH FRONT PASSENGER SIDE DOOR CONTROL MODULE (IN RIGHT FRONT DOOR) FUSE 21 FUSE 22 FUSE 41 GRY WIRE HOT AT ALL TIMES INTERIOR FUSE BOX (LEFT END OF DASH) LEFT EXTERIOR MIRROR LEFT FRONT DOOR CONTROL MODULE (IN DRIVER'S DOOR) NCA WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE RIGHT EXTERIOR MIRROR UPPER CONTROL PANEL CONTROL MODULE WHT WIRE

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

1 2 3 CAN H CAN L 1 2 CAN H CAN L 1 2 CAN-B H CAN-B L 1 2 CAN-C H CAN-C L 10 11 CAN-C H CAN-C L 10 9 CAN-B H CAN-B L 11 15 CAN-C H CAN-C L 12 13 CAN-B L CAN-B H 13 12 CAN-C H CAN-C L 18 17 CAN B H CAN B L 2 1 CAN L CAN H 4 3 CAN-B H CAN-B L 41 40 CAN C H CAN C L 41 54 CAN-C H CAN-C L 5 SPEED A/T 6 5 CAN-C H CAN-C L 7 6 CAN-C H CAN-C L 7 SPEED A/T 8 7 CAN-B H CAN-B L BRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN DATABUS ADAPTER CONNECTOR (BEHIND LEFT KICK PANEL) COCKPIT VOLTAGE DISTRIBUTOR CONNECTOR COMFORT AAC PUSHBUTTON CONTROL MODULE, AAC PUSHBUTTON CONTROL MODULE DI CONTROL MODULE ELECTRIC CONTROL UNIT (VGS) ELECTRONIC SELECTOR LEVER CONTROL MODULE (AT BASE OF GEAR SHIFT ASSEMBLY) ESP, BAS CONTROL MODULE (AT LEFT FRONT OF ENGINE COMPT) ETC CONTROL MODULE (EGS) (UNDER RIGHT SIDE OF DASH) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) GRN WIRE GRN/WHT WIRE INSTRUMENT CLUSTER ME-SFI CONTROL MODULE (AT LEFT REAR OF ENGINE COMPT) OVERHEAD CONTROL PANEL CONTROL MODULE STEERING COLUMN MODULE (AT TOP OF STEERING COLUMN) UPPER CONTROL PANEL CONTROL MODULE

"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

AAC PUSHBUTTON CONTROL MODULE, COMFORT AAC PUSHBUTTON CONTROL MODULE BLK WIRE BLU WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE CAN B L CAN B H CAN-B H CAN-B L 30 COMPUTER DATA LINES SYSTEM FRONT PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FUSE FUSE 2 FUSE 41 HEATED REAR WINDOW HOT AT ALL TIMES INTERIOR FUSE BOX (LEFT END OF DASH) REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) REAR WINDOW DEFROSTER RELAY REAR WINDOW DEFROSTER SWITCH RED WIRE RED/BLU WIRE UPPER CONTROL PANEL CONTROL MODULE

1 2 CAN B L CAN B H 3 4 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 FUSE 25 FUSE 41 GRN WIRE HOT AT ALL TIMES HOT AT ALL TIMES FRONT PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FUSE 2 HOT AT ALL TIMES FUSE 20 INTERIOR FUSE BOX (LEFT END OF DASH) REAR BLIND SWITCH REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) REAR SCREEN BLIND RELAY (AT LEFT SIDE OF TRUNK) REAR WINDOW BLIND MOTOR (AT RIGHT REAR OF SUN ROOF OPENING) RED WIRE RED/BLU WIRE RED/GRN WIRE UPPER CONTROL PANEL CONTROL MODULE WHT WIRE