Mercedes-Benz E-class W212/S212/C207/A207 (2009-2013) automatic air conditioning control, operating unit Wiring diagrams

1 2 3 4 5 6 7 8 9 CAN-B H CAN-B L 10 11 12 13 14 15 16 LIN DATA AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLU GRY/ WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/PNK WIRE BLU/VIO WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/RED WIRE BRN/VIO WIRE C-AAC SUN SENSOR (CENTER REAR OF ENGINE COMPT HOOD) COMPUTER DATA LINES SYSTEM DRIVER SIDE SAM CONTROL MODULE W/ FUSE/ RELAY MODULE (LEFT REAR OF ENGINE COMPT) EVAPORATOR TEMPERATURE SENSOR (RIGHT SIDE OF DASH) FUSE 12 GND (-) 31 GRN WIRE GRY BLU/ WIRE GRY/BLU WIRE HOT AT ALL TIMES INTERIOR HUMIDITY/ TEMPERATURE SENSOR (IF EQUIPPED) INTERIOR TEMPERATURE SENSOR (LEFT SIDE OF DASH) INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT CENTER AIR OUTLET SYMBOL ILLUMINATION (IF EQUIPPED) LEFT FRONT FOOTWELL AIR OUTLET TEMPERATURE SENSOR (LEFT FRONT FOOTWELL AREA) LEFT SIDE AIR OUTLET TEMPERATURE SENSOR NCA WIRE OUTSIDE TEMPERATURE SENSOR OVERHEAD CONTROL PANEL ELECTRONICS (W/O CAN) REAR AIR OUTLET SYMBOL ILLUMINATION (IF EQUIPPED) REAR WINDOW HEATER BUTTON RED/BLK WIRE RED/BRN WIRE RED/VIO WIRE REFRIGERANT COMPRESSOR (LEFT FRONT ENGINE) REFRIGERANT PRESSURE SENSOR (LEFT FRONT OF ENGINE COMPT) RIGHT CENTER AIR OUTLET SYMBOL ILLUMINATION (IF EQUIPPED) RIGHT FRONT FOOTWELL AIR OUTLET TEMPERATURE SENSOR (RIGHT FRONT FOOTWELL AREA) RIGHT SIDE AIR OUTLET TEMPERATURE SENSOR SIG SIG SOLID STATE VIO/WHT WIRE WHT/BLU WIRE YEL/BLU WIRE

45 43 REG LUES AC HOUSING, AIR DISTRIBUTION FLAP ACTUATOR MOTOR AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLOWER MOTOR BLOWER REGULATOR BLU/GRN WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE CAN B H CAN B L COMBUSTION ENGINE, A/C W/ INTEGRATED CONTROL FAN MOTOR COMPUTER DATA LINES COOLANT TEMPERATURE SENSOR (REAR OF LEFT CYLINDER BANK) DEFROSTER VENT FLAP ACTUATOR MOTOR DRIVER SIDE SAM CONTROL MODULE W/ FUSE/ RELAY MODULE (LEFT REAR OF ENGINE COMPT) ENGINE CONTROLS SYSTEM FRONT PREFUSE (RIGHT FRONT FOOTWELL) FUSE FUSE 158 GRN/BLU WIRE HOT AT ALL TIMES HOT W/ ENGINE CIRCUIT 87 RELAY ENERGIZED LEFT BLENDING AIR FLAP ACTUATOR LIN B 31 ME-SFI (ME) CONTROL MODULE (CENTER REAR OF ENGINE COMPT) PURGE CONTROL VALVE RED WIRE RED/BLU WIRE RED/VIO WIRE SOLID STATE SYSTEM TMOT USA VIO/GRN WIRE VIO/WHT WIRE W/O ECO START/ STOP FUNCTION W/ ECO START/ STOP FUNCTION WHT WIRE WHT/BRN WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 COMPUTER DATA LINES SYSTEM CAN B H CAN B L 1 2 GND DATA 10 11 12 13 14 15 16 LIN DATA 30 GND 31 AIR RECIR- CULATION MODE BUTTON AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLU GRY/ WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/PNK WIRE BLU/VIO WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/RED WIRE BRN/VIO WIRE C-AAC SUN SENSOR (CENTER REAR OF ENGINE COMPT HOOD) DRIVER SIDE SAM CONTROL MODULE W/ FUSE/ RELAY MODULE (LEFT REAR OF ENGINE COMPT) EMISSION SENSOR EVAPORATOR TEMPERATURE SENSOR (RIGHT SIDE OF DASH) FUSE 12 GRN WIRE GRY BLU/ WIRE GRY/BLU WIRE HOT AT ALL TIMES INTERIOR HUMIDITY/ TEMPERATURE SENSOR (IF EQUIPPED) INTERIOR TEMPERATURE SENSOR (LEFT SIDE OF DASH) INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT CENTER AIR OUTLET SYMBOL ILLUMINATION (IF EQUIPPED) LEFT FRONT FOOTWELL AIR OUTLET TEMPERATURE SENSOR (LEFT FRONT FOOTWELL AREA) LEFT FRONT SIDE AIR OUTLET SYMBOL ILLUMINATION (IF EQUIPPED) LEFT SIDE AIR OUTLET TEMPERATURE SENSOR NCA WIRE OUTSIDE TEMPERATURE SENSOR OVERHEAD CONTROL PANEL ELECTRONICS (W/O CAN) REAR AIR OUTLET SYMBOL ILLUMINATION (IF EQUIPPED) REAR AUTOMATIC AIR CONDITIONING OPERATING UNIT REAR FOOTWELL AIR OUTLET TEMPERATURE SENSOR REAR WINDOW HEATER BUTTON RED/BLK WIRE RED/BRN WIRE RED/VIO WIRE RED/WHT WIRE REFRIGERANT COMPRESSOR (LEFT FRONT ENGINE) REFRIGERANT PRESSURE SENSOR (LEFT FRONT OF ENGINE COMPT) RIGHT CENTER AIR OUTLET SYMBOL ILLUMINATION (IF EQUIPPED) RIGHT FRONT FOOTWELL AIR OUTLET TEMPERATURE SENSOR (RIGHT FRONT FOOTWELL AREA) RIGHT FRONT SIDE AIR OUTLET SYMBOL ILLUMINATION (IF EQUIPPED) RIGHT SIDE AIR OUTLET TEMPERATURE SENSOR SIG SIG SIG DATA FOND GND SOLID STATE VIO/WHT WIRE W/ AIR OUTLET SYMBOL ILLUMINATION WHT/BLU WIRE YEL/BLU WIRE

45 43 REG LUES AC HOUSING, AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLOWER MOTOR BLOWER REGULATOR BLU/GRN WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE CAN B H CAN B L COMBUSTION ENGINE, A/C W/ INTEGRATED CONTROL FAN MOTOR COMPUTER DATA LINES COOLANT CIRCULATION PUMP COOLANT TEMPERATURE SENSOR (REAR OF LEFT CYLINDER BANK) DIFFUSE FLAP ACTUATOR MOTOR DRIVER SIDE SAM CONTROL MODULE W/ FUSE/ RELAY MODULE (LEFT REAR OF ENGINE COMPT) ENGINE CONTROLS SYSTEM FRESH AIR/ RECIRCULATED AIR FLAPS ACTUATOR MOTOR (UNDER RIGHT SIDE OF DASH) FRONT PREFUSE (RIGHT FRONT FOOTWELL) FUSE FUSE 158 GRN/BLU WIRE HOT AT ALL TIMES HOT W/ ENGINE CIRCUIT 87 RELAY ENERGIZED LEFT BLENDING AIR FLAP ACTUATOR LEFT DEFROSTER VENT FLAP ACTUATOR MOTOR (BEHIND CENTER OF DASH) LEFT FOOTWELL FLAP ACTUATOR MOTOR (BEHIND LEFT FRONT OF CENTER CONSOLE) ME-SFI (ME) CONTROL MODULE (CENTER REAR OF ENGINE COMPT) PURGE CONTROL VALVE RAM AIR FLAPS ACTUATOR MOTOR RED WIRE RED/BLU WIRE RED/YEL WIRE RIGHT BLENDING AIR FLAP ACTUATOR RIGHT CENTER AIR FLAP ACTUATOR MOTOR (UNDER CENTER OF DASH) SIG SOLID STATE SYSTEM TMOT USA VIO/GRN WIRE VIO/RED WIRE VIO/WHT WIRE W/O ECO START/ STOP FUNCTION W/ ECO START/ STOP FUNCTION WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CAN B H CAN B L 4 3 2 1 SIG 6 7 CAN B L CAN B H AIR SIG SIG RE CIR- CULATION MODE BUTTON GND AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLU/GRN WIRE BLU/RED WIRE BLU/VIO WIRE BRN GRY/ WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/YEL WIRE C-AAC SUN SENSOR (CENTER REAR OF ENGINE COMPT HOOD) COMPUTER DATA LINES SYSTEM DIESEL DRIVER SIDE SAM CONTROL MODULE W/ FUSE/ RELAY MODULE (LEFT REAR OF ENGINE COMPT) EVAPORATOR TEMPERATURE SENSOR (RIGHT SIDE OF DASH) FRESH AIR/ RECIRCULATED AIR FLAP SWITCHOVER VALVE FUSE 12 GAS GRN WIRE GRN/BRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/BRN WIRE GRY/ORG WIRE HOT AT ALL TIMES INTERIOR TEMPERATURE SENSOR (LEFT SIDE OF DASH) INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN NTC (+) NTC (-) ORG/BRN WIRE OUTSIDE TEMPERATURE SENSOR OVERHEAD CONTROL PANEL ELECTRONICS (W/O TILTING/ SLIDING ROOF) REAR GND 31 WINDOW HEATER BUTTON RED WIRE RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE REFRIGERANT COMPRESSOR (LEFT FRONT ENGINE) REFRIGERANT PRESSURE SENSOR (LEFT FRONT OF ENGINE COMPT) RIGHT FRONT FOOTWELL AIR OUTLET TEMPERATURE SENSOR (RIGHT FRONT FOOTWELL AREA) RIGHT SIDE AIR OUTLET TEMPERATURE SENSOR SOLID STATE VIO/BLU WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/ORG WIRE VIO/RED WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BRN WIRE YEL WIRE YEL/BRN WIRE YEL/VIO WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CAN B H CAN B L 30 GND 31 REAR WINDOW HEATER BUTTON AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLU/GRN WIRE BLU/RED WIRE BLU/VIO WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/YEL WIRE C-AAC SUN SENSOR (CENTER REAR OF ENGINE COMPT HOOD) COMPUTER DATA LINES SYSTEM DRIVER SIDE SAM CONTROL MODULE W/ FUSE/ RELAY MODULE (LEFT REAR OF ENGINE COMPT) EMISSIONS SENSOR EVAPORATOR TEMPERATURE SENSOR (RIGHT SIDE OF DASH) FUSE 12 GAS DIESEL GRN/BRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/BLU WIRE HOT AT ALL TIMES INTERIOR TEMPERATURE SENSOR (LEFT SIDE OF DASH) INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT FRONT FOOTWELL AIR OUTLET TEMPERATURE SENSOR (RIGHT FRONT FOOTWELL AREA) LEFT SIDE AIR OUTLET TEMPERATURE SENSOR ORG/BRN WIRE OVERHEAD CONTROL PANEL CONTROL ELECTRONICS (W/O TILTING/SLIDING ROOF) RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE REFRIGERANT COMPRESSOR (LEFT FRONT ENGINE) REFRIGERANT PRESSURE SENSOR (LEFT FRONT OF ENGINE COMPT) RIGHT FRONT FOOTWELL AIR OUTLET TEMPERATURE SENSOR (RIGHT FRONT FOOTWELL AREA) RIGHT SIDE AIR OUTLET TEMPERATURE SENSOR SIG SIG SIG LIN GND LIN DATA SOLID STATE VIO/BLU WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/ORG WIRE VIO/WHT WIRE VIO/YEL WIRE WHT/BRN WIRE YEL/BRN WIRE YEL/VIO WIRE

3.0L TURBO 43 41 54 45 44 41 54 LUES CAN-H CAN-L REG AC HOUSING, AIR RE- CIRCULATION MODE BUTTON AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/RED WIRE BLOWER MOTOR BLOWER REGULATOR BRN WIRE BRN/GRN WIRE COMBUSTION ENGINE, A/C W/ INTEGRATED CONTROL FAN MOTOR COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR (EXCEPT 3.0L TURBO: REAR OF LEFT CYLINDER BANK) DIFFUSE FLAP ACTUATOR MOTOR ENGINE CONTROLS SYSTEM EXCEPT 3.0L TURBO FRONT PREFUSE (RIGHT FRONT FOOTWELL) FUSE FUSE 158 GRN WIRE GRN/BLU WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT BLENDING AIR FLAP ACTUATOR (BEHIND CENTER OF DASH) LEFT CENTER AIR FLAP ACTUATOR MOTOR (UNDER CENTER OF DASH) LEFT DEFROSTER VENT FLAP ACTUATOR MOTOR (BEHIND CENTER OF DASH) LEFT FOOTWELL FLAP ACTUATOR MOTOR (BEHIND LEFT FRONT OF CENTER CONSOLE) ME-SFI (ME) CONTROL MODULE (EXCEPT 3.0L TURBO) PTC HEATER BOOSTER ELECTRICAL CONNECTOR PURGE CONTROL VALVE REAR BLEND AIR FLAP ACTUATOR MOTOR (FRONT OF CENTER CONSOLE) REAR SAM SAM CONTROL MODULE W/ FUSE/ RELAY MODULE (LEFT SIDE OF TRUNK) RED WIRE RED/GRN WIRE RIGHT BLENDING AIR FLAP ACTUATOR (BEHIND CENTER OF DASH) RIGHT CENTER AIR FLAP ACTUATOR MOTOR (UNDER CENTER OF DASH) RIGHT DEFROSTER VENT FLAP ACTUATOR MOTOR (BEHIND CENTER OF DASH) RIGHT FOOTWELL FLAP ACTUATOR MOTOR (BEHIND RIGHT FRONT OF CENTER CONSOLE) SIG TMOT VIO/GRN WIRE VIO/RED WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE

2 1 CAN-B H CAN-B L 24 18 13 14 19 15 CAN B H CAN B L AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BRN WIRE BRN/ORG WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER TRUNK LID CONTROL BUTTON (W/ TAILGATE CONTROL) FRONT PREFUSE (RIGHT FRONT FOOTWELL) FUSE 152 GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES LEFT CENTER AIR OUTLET SYMBOL ILLUMINATION LEFT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH LEFT FRONT DOOR CONTROL MODULE (IN DRIVER'S DOOR) LEFT FRONT SIDE AIR OUTLET SYMBOL ILLUMINATION NCA WIRE PASSENGER-SIDE POWER WINDOW SWITCH REAR AIR OUTLET SYMBOL ILLUMINATION REAR CONTROL UNIT RED WIRE RIGHT CENTER AIR OUTLET SYMBOL ILLUMINATION RIGHT FRONT DOOR CONTROL MODULE (RIGHT FRONT DOOR) RIGHT FRONT SIDE AIR OUTLET SYMBOL ILLUMINATION RIGHT REAR LEFTT REAR POWER WINDOW POWER WINDOW SWITCH SWITCH TRUNK LID RELEASE BUTTON (W/ TRUNK LID RELEASE) W/ AIR OUTLET SYMBOL ILLUMINATION W/ THERMOTRONIC W/O THERMOTRONIC

1 2 CAN-B H CAN-B L AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLK WIRE BRN WIRE BRN/RED WIRE CAN B L CAN B H COMPUTER DATA LINES SYSTEM COUPE COUPE, SEDAN COUPE, SEDAN W/O ECO START/ STOP FUNCTION COUPE W/ ECO START/ STOP FUNCTION FRONT PREFUSE (RIGHT FRONT FOOTWELL) FUSE HEATED REAR WINDOW RELAY HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT SIDE OF TRUNK) REAR WINDOW HEATER REAR WINDOW HEATER BUTTON REAR WINDOW INTERFERENCE SUPPRESSION CAPACITOR 1 REAR WINDOW INTERFERENCE SUPPRESSION CAPACITOR 2 RED WIRE SEDAN SEDAN, COUPE