Mercedes-Benz S-class W140 facelift (1994-1999) a/c pushbutton control module Wiring diagrams

2 1 2 CAN (H) + CAN (L) - 22/3 9 10 11 CAN (H) + CAN (L) - A/C PUSHBUTTON CONTROL MODULE ADS CONTROL MODULE (IN MODULE BOX, ON RIGHT REAR OF ENGINE COMPT) ASR/SPS CONTROL MODULE/ ASR/ETS/ESP CONTROL MODULE ATA CONTROL MODULE (ON RIGHT SIDE OF LUGGAGE COMPT) BASE MODULE (IN MODULE BOX, ON RIGHT REAR OF ENGINE COMPT) BLK/BLU WIRE BLK/YEL WIRE BLU/GRY WIRE BLU/YEL WIRE BRN WIRE CAN-H- CAN-L- CAN-L CAN-H CONVENIENCE FEATURE CONTROL MODULE (ON RIGHT SIDE OF LUGGAGE COMPT) DIAGNOSTIC MODULE (OBD II) GENERIC SCAN TOOL CONNECTOR ENGINE CONTROL MODULE (ME-SFI) FUEL TANK PRESSURE SENSOR FUSE 17 FUSE BOX GRN WIRE GRN/BLK WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/WHT WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER IR DAS CONTROL MODULE PSE CONTROL MODULE (RIGHT SIDE OF REAR SEAT) RCL CONTROL MODULE (ON RIGHT SIDE OF LUGGAGE COMPT) RED/WHT WIRE SPS CONTROL MODULE SRS CONTROL MODULE TEST CONNECTOR FOR DIAGNOSIS (RIGHT REAR CORNER OF ENGINE COMPARTMENT) TRANSMISSION CONTROL MODULE ULTRASONIC PTS CONTROL MODULE WHT WIRE WHT/GRN WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/RED WIRE

A/C PUSHBUTTON CONTROL MODULE AIR CONTROL MODULE BLU WIRE BRN WIRE BRN/WHT WIRE FUSE 2 GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES LEFT AUXILIARY FAN MAXI FUSE BOX PNK WIRE PNK/BLU WIRE RED/GRN WIRE RIGHT AUXILIARY FAN

3 1 6 2 HS ON-OFF 87 HH A/C PUSHBUTTON CONTROL MODULE BLK WIRE BRN WIRE BRN/RED WIRE COMBINATION RELAY (LEFT REAR CORNER OF ENGINE COMPT) COUPE FUSE 17 GRN/BLU WIRE HOT AT ALL TIMES LED HS REAR FUSE BOX REAR WINDOW DEFROSTER ELEMENT REAR WINDOW DEFROSTER RELAY MODULE RED/BLU WIRE RED/BRN WIRE SEDAN

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 DIAGN 30 15 DZA A/C COMPRESSOR A/C PUSHBUTTON CONTROL MODULE AKF+ AKF- CAN B CAN A BLK WIRE BLK/BLU WIRE BLK/GRY/BLU WIRE BLK/PNK WIRE BLK/RED WIRE BLK/YEL/GRN WIRE BLK/YEL/WHT WIRE BLOWER MOTOR BLU WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/PNK WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE FUSE 18 FUSE 20 FUSE 21 FUSE BOX (ON LEFT REAR CORNER OF ENGINE COMPARTMENT) GRN WIRE GRN/BLU WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLK/YEL WIRE GRY/GRN WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE GRY/YEL/VIO WIRE HEATER SUPPLY UNIT (IN LEFT FRONT OF ENGINE COMPARTMENT) HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START HS ON-OFF IN-CAR TEMPERATURE SENSOR (IN DOME LIGHT ASSEMBLY) INSTRUMENT CLUSTER SYSTEM LEFT DUOVALVE LEFT HEATER CORE TEMPERATURE SENSOR (BEHIND CENTER OF DASHBOARD, BELOW RADIO) MAXI FUSE 2 MD WIK MD LED+ MD LED- LED HS NCA WIRE PNK WIRE PSE CONTROL MODULE (BEHIND RIGHT SIDE OF REAR SEAT) REAR A/C PUSHBUTTON CONTROL MODULE RED WIRE RED/GRN WIRE RED/WHT WIRE REFRIGERANT PRESSURE SENSOR (IN LEFT FRONT CORNER OF ENGINE COMPARTMENT) REFRIGERANT TEMPERATURE SENSOR (IN LEFT FRONT CORNER OF ENGINE COMPARTMENT) RIGHT DUOVALVE RIGHT HEATER CORE TEMPERATURE SENSOR (BEHIND CENTER OF DASHBOARD, BELOW RADIO) SUN SENSOR (TOP CENTER OF DASH) TF TFL TFR SEN SENS VIO WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE