Mercedes-Benz C-class AMG W203/S203/CL203 (2001-2004) heating systems recirculation unit Wiring diagrams

1 2 3 31 DATA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 CAN H CAN L 1 2 3 6 4 PRESS/TEMP PRESS/TEMP PRESS/TEMP PRESS/TEMP RESIDUAL HEAT 9 10 COMPUTER DATA LINES SYSTEM CAN L CAN H AAC PUSHBUTTON CONTROL MODULE AIR HUMIDITY SENSOR LEFT DEFROSTER VENT FLAP ACTUATOR BLK/BRN WIRE BLK/WHT WIRE BLOWER MOTOR BLU 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 COMPUTER DATA LINES SYSTEM COOLANT CIRCULATION PUMP (W/ RESIDUAL ENGINE HEAT UTILIZATION SYSTEM) ELECTRIC SUCTION FAN ENGINE, A/C WITH INTEGRATED CONTROL EVAP SENS FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 30 FUSE 41 FUSE 5 FUSE 51 GRN WIRE GRN/BLU WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/RED WIRE GRY/VIO WIRE HEATING SYSTEMS RECIRC- ULATION UNIT FRESH AIR/RECIRC AIR FLAPS ACTUATOR HEATING SYSTEMS RECIRCULATION UNIT HOT AT ALL TIMES HOT IN RUN OR START IN-CAR TEMPERATURE SENSOR IN-CAR TEMPERATURE SENSOR FSN MOTOR INTERIOR FUSE BOX (UNDER LEFT END OF DASH) LEFT BLENDING AIR FLAP ACTUATOR RIGHT BLENDING AIR FLAP ACTUATOR LEFT FOOTWELL FLAP ACTUATOR LEFT FRESH AIR FLAP ACTUATOR RIGHT FOOTWELL FLAP ACTUATOR LEFT, RIGHT DEFROSTER FLAPS ACTUATOR FRESH AIR FLAPS ACTUATOR LEFT, RIGHT FOOTWELL FLAPS ACTUATOR ME-SFI CONTROL MODULE NCA WIRE OVERHEAD CONTROL PANEL CONTROL MODULE R BLWR SELECT SIG R BLWR SELECT RECIRC UNIT 30 COMMON REAR BLOWER ELECTRONIC SELECTOR WHEEL REAR BLOWER MOTOR REAR BLOWER MOTOR CONTROL MODULE (BELOW REAR OF CENTER CONSOLE) RECIRC UNIT R BLWR CTRL RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT DEFROSTER VENT FLAP ACTUATOR RIGHT FRESH AIR FLAP ACTUATOR W/ COMFORT AAC W/ OUTSIDE TEMPERATURE INDICATOR WHT/PNK WIRE WHT/VIO WIRE

10 10 (2001, 2002 EARLY PROD) (2002 LATE PROD) 9 1 (2001, 2002 EARLY PROD) (2002 LATE PROD) BATTERY BLK WIRE BLU WIRE BRAKE BOOSTER VACUUM PUMP CONTROL MODULE CENTRAL GATEWAY CONTROL UNIT COMFORT ACC PUSHBUTTON CONTROL MODULE, UPPER CONTROL PANEL CONTROL MODULE CTEL INTERFACE DI CONTROL MODULE (INTEGRAL W/ ELECTRONIC IGNITION STARTER SWITCH) DRIVER FRONT SEAT ADJUSTMENT CONTROL MODULE ELECTRIC SUCTION FAN ENGINE, A/C W/ INTEGRATED CONTROL FROM FUSE 33 (DIAGRAM 1 OF 2) FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 1 FUSE 2 FUSE 21 FUSE 22 FUSE 23 FUSE 25 FUSE 26 FUSE 27 FUSE 29 FUSE 30 FUSE 31 FUSE 32 FUSE 33 FUSE 34 FUSE 37 FUSE 38 FUSE 4 FUSE 40 FUSE 41 FUSE 42 FUSE 5 FUSE 6 GENERATOR GRN WIRE GRY WIRE HEATING SYSTEMS RECIRCULATION UNIT INSTRUMENT CLUSTER INTERIOR FUSE BOX (UNDER LEFT END OF DASH) LEFT FRONT DOOR CONTROL MODULE PASSENGER FRONT SEAT ADJUSTMENT CONTROL MODULE PNK WIRE REAR BLOWER MOTOR CONTROL MODULE REAR LEFT DOOR CONTROL MODULE REAR RIGHT DOOR CONTROL MODULE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED WIRE RIGHT FRONT DOOR CONTROL MODULE SOUND AMPLIFIER STARTER MOTOR TO FUSE 34 (DIAGRAM 1 OF 2) UPPER CONTROL PANEL CONTROL MODULE VIO WIRE WHT WIRE YEL WIRE