Mercedes-Benz C-class W203/S203/CL203 facelift (2004-2008) overhead control panel control module 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 3 31 MULTIPLEX DATA OUT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 CAN-B H CAN-B L 9 10 COMPUTER DATA LINES SYSTEM CAN-B L CAN-B H A/C COMPRESSOR (LEFT FRONT OF ENGINE COMPT) AAC PUSHBUTTON CONTROL MODULE AIR LEFT HUMIDITY DEFROSTER SENSOR VENT FLAP ACTUATOR MOTOR BLK/BRN WIRE BLK/RED WIRE BLOWER MOTOR BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/PNK WIRE BLU/RED WIRE BLU/VIO WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/YEL WIRE CAN-L CAN-H CIRCUIT 87 RELAY ENERGIZED FUSE 54 COMPUTER DATA LINES SYSTEM COOLANT CIRCULATION PUMP (W/ RESIDUAL ENGINE HEAT UTILIZATION SYSTEM) ELECTRIC SUCTION FAN ENGINE, A/C WITH INTEGRATED CONTROL ENERGIZED FUSE 51 FRESH LEFT, RIGHT AIR DEFROSTER FLAPS ACTUATOR FLAPS ACTUATOR FRONT PRE-FUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 30 FUSE 41 FUSE 5 GRN WIRE GRN/BLU WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/RED WIRE HEATING SYSTEMS RECIRCULATION UNIT HOT AT ALL TIMES IN-CAR TEMPERATURE SENSOR IN-CAR TEMPERATURE SENSOR FSN MOTOR INSTRUMENT CLUSTER SYSTEM INTERIOR FUSE BOX LEFT FOOTWELL FLAP ACTUATOR MOTOR LEFT RIGHT BLENDING BLENDING AIR FLAP AIR FLAP ACTUATOR ACTUATOR LEFT RIGHT FRESH FOOTWELL AIR FLAP FLAP ACTUATOR ACTUATOR MOTOR LEFT, RIGHT FOOTWELL FLAPS ACTUATOR ME-SFI CONTROL MODULE NCA WIRE OVERHEAD CONTROL PANEL CONTROL MODULE PURGE CONTROL VALVE (LEFT REAR CORNER OF ENGINE COMPT) REAR BLOWER ELECTRONIC SELECTOR WHEEL REAR BLOWER MOTOR REAR BLOWER MOTOR CONTROL MODULE (ON REAR BLOWER MOTOR ASSEMBLY) RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT DEFROSTER VENT FLAP ACTUATOR MOTOR RIGHT FRESH AIR FLAP ACTUATOR RV EGS VIO WIRE W/ COMFORT AAC W/ OUTSIDE TEMPERATURE INDICATOR WHT/PNK WIRE WHT/VIO 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

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

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

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

31 AIS AMBIENT LAMP AUTOMATIC DIMMING MIRROR BLK WIRE BLU WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE CAN-BL CAN-BH COMPUTER DATA LINES SYSTEM EMERGENCY CALL SYSTEM CONTROL UNIT (FRONT OF CARGO AREA) FORWARD AUTOMATIC DIMMING FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/ CARGO AREA.) GARAGE DOOR OPENER PUSHBUTTON 1 GARAGE DOOR OPENER PUSHBUTTON 2 GARAGE DOOR OPENER PUSHBUTTON 3 GARAGE DOOR OPENER TRANSMITTER UNIT GRN WIRE GRY/BLU WIRE HOT AT ALL TIMES INTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEM INTERIOR REARVIEW MIRROR UNIT MIRROR SENSOR MIRROR SENSOR BACKWARD AUTOMATIC DIMMING NCA WIRE OVERHEAD CONTROL PANEL CONTROL MODULE PNK/RED WIRE POWER TOPS SYSTEM RAIN/LIGHT SENSOR (AT FRONT OF HEADLINER) REAR SAM CONTROL MODULE RED/BLU WIRE RS 31 SOS PUSHBUTTON SWITCH VIO WIRE YEL WIRE YEL/RED WIRE YEL/VIO 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 3 4 5 6 7 8 9 10 11 12 13 14 15 16 LR FOG LMP RR PARK RR MARK LR MARK 1 2 3 4 5 RADIO TRK LAMP RHR REL TRK LAMP COMMON 1 2 REAR BLIND REAR BLIND AMP MOD AMP MOD BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/GRN WIRE BRN WIRE BRN/YEL WIRE COUPE, WAGON ONLY DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM FROM FUSE 7 (DIAGRAM 1 OF 2) FUEL FILTER CAP POLARITY CHANGE 1 RELAY FUEL FILTER CAP POLARITY CHANGE 2 RELAY FUSE 15 GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE GRY/VIO WIRE GRY/YEL WIRE HOT AT ALL TIMES FUSE 3 HOT AT ALL TIMES FUSE 8 HOT AT ALL TIMES FUSE 9 INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM LOCK PAWL TRUNK CL CHMSL R LICENSE L LICENSE R WIPER LR BACK LR TURN RR STOP RR BACK RR TURN LR STOP LR PARK NCA WIRE NECK-PRO HEAD RESTRAINT TRIGGERING DEVICE (UNDER CENTER CONSOLE) OVERHEAD CONTROL PANEL CONTROL MODULE POWER WINDOWS SYSTEM POWER WINDOWS SYSTEM REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK/CARGO AREA) RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/YEL WIRE RESERVE 1 RELAY RHR RELEASE VALVE (LEFT SIDE OF TRUNK) SOUND SYSTEMS INTERIOR LIGHTS SYSTEM SOUND SYSTEMS SOUND SYSTEMS SOUND SYSTEMS TRUNK EMERG TRUNK EXT LOCK PAWL TRUNK SW TRUNK EMERG VIO/BLU WIRE WHT WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE