Mercedes-Benz C-class W203/S203/CL203 (2000-2004) coolant circulation pump (w/ residual engine heat utilization system) 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

1 2 3 6 4 PRESS/TEMP PRESS/TEMP PRESS/TEMP PRESS/TEMP RESIDUAL HEAT 2.3L 2.6L, 3.2L 5 9 CT SENS + SENS - BLK/WHT WIRE BLU/RED WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN-L CAN-H COMPUTER DATA LINES SYSTEM COOL FAN COOLANT CIRCULATION PUMP (W/ RESIDUAL ENGINE HEAT UTILIZATION SYSTEM) COOLANT TEMPERATURE SENSOR (2.3L) (TOP RIGHT SIDE OF ENGINE) COOLANT TEMPERATURE SENSOR (2.6L, 3.2L) (RIGHT FRONT OF ENGINE) CT SENS - CT SENS + ELECTRIC SUCTION FAN ENGINE, A/C WITH INTEGRATED CONTROL ENGINE CONTROLS SYSTEM FRONT PRE-FUSE BOX (RIGHT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 5 FUSE 51 GRN/BLU WIRE GRN/RED WIRE GRY/VIO WIRE HOT AT ALL TIMES HOT IN RUN OR START ME-SFI CONTROL MODULE RED WIRE RED/WHT WIRE RED/YEL WIRE