Mercedes-Benz S-class W140 facelift (1994-1999) brn/yel Wiring diagrams

BLK WIRE BLK/GRN/VIO WIRE BLK/PNK WIRE BLK/RED WIRE BLK/RED/WHT WIRE BLK/WHT WIRE BLK/YEL WIRE BLK/YEL/RED WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR ENGINE CONTROL MODULE (RIGHT REAR OF ENGINE COMPT) ESP OFF SWITCH ESP/SPS CONTROL MODULE EXTERIOR LAMP FAILURE MONITORING MODULE (LEFT REAR OF ENGINE COMPT) GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/PNK WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/WHT WIRE GRY/YEL WIRE HEADLIGHTS, RADIO (SPEED SIGNAL) HOT AT ALL TIMES INSTRU- MENT CLUSTER LEFT FRONT AXLE VSS SPEED SENSOR LEFT FRONT BRAKE PAD WEAR SENSOR LEFT REAR AXLE VSS SPEED SENSOR MASTER BRAKE CYLINDER SWITCHOVER VALVE NCA WIRE PNK WIRE RED WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RIGHT FRONT AXLE VSS SPEED SENSOR RIGHT FRONT BRAKE PAD WEAR SENSOR RIGHT REAR AXLE VSS SPEED SENSOR RIGHT REAR BRAKE PAD WEAR SENSOR SPS P-VALVE TERMINAL BLOCK WHT WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

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

A/C SYSTEM BLOWER UNIT ACTIVATED CHARCOAL FILTER ACTUATOR AIR CONTROL MODULE (ON LEFT FRONT OF ENGINE COMPARTMENT, ON FRAME RAIL) BLK/BLU WIRE BLK/PNK WIRE BLK/RED WIRE BLK/YEL/GRN WIRE BLK/YEL/WHT WIRE BLOWER MOTOR BLOWER REGULATOR BLU/WHT WIRE BRN WIRE BRN/WHT WIRE BRN/YEL WIRE COOL COOL INDICATOR LED EMISSIONS SENSOR (CENTER OF FIREWALL) GRY/BLU WIRE GRY/GRN WIRE GRY/RED WIRE HEADLAMP UNIT) HOT AT ALL TIMES ILLUMINATION LEFT AUXILIARY FAN (ON FRONT OF ENGINE COMPARTMENT) NCA WIRE NOTE: COMPONENTS MAY BE GROUNDED AT EITHER PNK/BLU WIRE RED WIRE RED/GRN WIRE RIGHT AUXILIARY FAN (ON FRONT OF ENGINE COMPARTMENT) SWITCHOVER VALVE BLOCK WARM WARM INDICATOR LED WARM/COOL AIR SWITCH (HEATING SYSTEMS) WHT/BLK WIRE WHT/RED WIRE YEL/BLU WIRE

73/1 BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/GRY/RED WIRE BLK/VIO WIRE BLU WIRE BLU/GRN WIRE BRN WIRE BRN/WHT WIRE BRN/YEL WIRE CENTER CONSOLE COMBINATION RELAY (LEFT REAR CORNER OF ENGINE COMPT) FRONT SEAT HEATER CONTROL UNIT (UNDER LEFT SIDE OF REAR SEAT) FUSE 29 FUSE 34 FUSE 22 FUSE BOX GRY WIRE GRY/BLU WIRE HI LO HOT AT ALL TIMES HOT IN ACCY, RUN, OR START LEFT FRONT BACKREST HEATER LEFT FRONT SEAT HEATER SWITCH NCA WIRE OFF RED WIRE RED/YEL WIRE RED/YEL/WHT WIRE RIGHT FRONT BACKREST HEATER LEFT FRONT SEAT HEATER RIGHT FRONT SEAT HEATER RIGHT FRONT SEAT HEATER SWITCH VIO WIRE WHT WIRE WHT/VIO WIRE YEL WIRE YEL/BLU WIRE

20/2 BLK WIRE BLK/GRN WIRE BLK/YEL WIRE BRN WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE COMBINATION SWITCH GRY WIRE GRY/YEL WIRE HEADLIGHT WASHER CIRCUIT HOT IN ACC, RUN OR START HOT IN ACCY, RUN OR START FUSE BOX FUSE 15 INT LO NCA WIRE OFF HI PARK RAIN SENSOR RED/YEL WIRE RUN WIRE TERMINAL BLOCK WASHER SWITCH WINDSHIELD WASHER PUMP WINDSHIELD WIPER MOTOR WIPER SWITCH

1995 VFTC BLK/BRN/VIO WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/YEL WIRE CAN A CAN B CENTER CONSOLE COOLANT CIRCULATION PUMP FRONT A/C CIRCUIT FTX FUSE 1 GRY WIRE GRY/BLU WIRE GRY/GRN/VIO WIRE GRY/RED WIRE GRY/RED/VIO WIRE GRY/YEL/VIO WIRE HOT IN RUN OR START LEFT DUOVALVE LEFT REAR HEATER CORE TEMPERATURE SENSOR (IN REAR OF CENTER CONSOLE) NCA WIRE REAR A/C ELECTRONIC BLOWER REGULATOR, REAR A/C PUSHBUTTON CONTROL MODULE REAR AUXILIARY HEATER SUPPLY UNIT REAR BLOWER MOTOR (BELOW CENTER CONSOLE) REAR EVAPORATOR TEMPERATURE SENSOR (IN REAR OF CENTER CONSOLE) REAR FUSE BOX (IN LUGGAGE COMPARTMENT, BEHIND RIGHT TRIM PANEL) REAR REFRIGERANT SHUT-OFF VALVE REAR TUNNEL FLAP VACUUM VALVE RED WIRE RIGHT DUOVALVE RIGHT REAR HEATER CORE TEMPERATURE SENSOR (IN REAR OF CENTER CONSOLE) WHT/PNK/VIO WIRE

BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/GRY/RED WIRE BLK/VIO WIRE BLU WIRE BLU/GRN WIRE BRN WIRE BRN/WHT WIRE BRN/YEL WIRE CENTER CONSOLE COMBINATION RELAY (LEFT REAR CORNER OF ENGINE COMPT) FUSE 12 FUSE 22 FUSE BOX GRN WIRE GRY WIRE GRY/BLU WIRE HI LO HOT AT ALL TIMES HOT IN ACCY, RUN, OR START LEFT REAR BACKREST HEATER LEFT REAR DOOR PLUG CONNECTION LEFT REAR SEAT HEATER LEFT REAR SEAT HEATER SWITCH NCA WIRE OFF REAR FUSE BOX FUSE 2 REAR SEAT HEATER CONTROL UNIT (BELOW REAR SEAT) RED WIRE RED/YEL WIRE RED/YEL/WHT WIRE RIGHT REAR BACKREST HEATER RIGHT REAR SEAT HEATER RIGHT REAR DOOR PLUG CONNECTION RIGHT REAR SEAT HEATER SWITCH VIO WIRE WHT WIRE WHT/VIO WIRE YEL WIRE YEL/BLU WIRE

BLK WIRE BLU WIRE BLU/GRN WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/YEL WIRE DRIVER SEAT BELT BUCKLE SWITCH FUSE 34 FUSE BOX (LEFT REAR CORNER OF ENGINE COMPT) FUSE 15 GRN WIRE HOT IN RUN, ACC OR START INSTRUMENT CLUSTER LEFT FRONT ETR SQUIB NCA WIRE NOT USED PASSENGER AIRBAG SQUIB PASSENGER SEAT BELT BUCKLE SWITCH PNK WIRE PNK/BLK WIRE PNK/YEL WIRE RED WIRE RIGHT FRONT ETR SQUIB DRIVER AIRBAG SQUIB SLIP RING SRS INDICATOR SUPPLEMENTAL RESTRAINT SYSTEM CONTROL MODULE (BENEATH FRONT OF CENTER CONSOLE) VIO WIRE YEL WIRE

BRN WIRE BRN/YEL WIRE CENTER CONSOLE GRN WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES FUSE 11 PNEUMATIC SYSTEM EQUIPMENT CONTROL MODULE REAR FUSE BOX RED/GRN WIRE REMOTE TRUNK RELEASE CONTROL VALVE REMOTE TRUNK RELEASE SWITCH ROTARY TUMBLER/ TRUNK LID MICROSWITCH YEL WIRE

1 11 3 ASR/ SPS 1 4 3 ESP/ SPS 1998, 1999 ACTIVATED CHARCOAL CANISTER SHUT-OFF VALVE AIR PUMP (LOWER RIGHT FRONT OF ENGINE) AIR PUMP RELAY MODULE (LEFT REAR OF ENGINE COMPT) ASR/SPS CONTROL MODULE (IN MODULE BOX, RIGHT SIDE OF ENGINE COMPT) BLK WIRE BLK/GRN/VIO WIRE BLK/RED WIRE BLK/RED/WHT WIRE BLK/RED/YEL WIRE BLK/WHT WIRE BLK/YEL/RED WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/RED/GRN WIRE BRN/YEL WIRE CRUISE CONTROL SYSTEM DATA LINK CONNECTOR DIAGNOSTIC MODULE (OBD II) GENERIC SCAN TOOL CONNECTOR ENGINE CONTROL MODULE (ME-SFI) (IN MODULE BOX, RIGHT REAR OF ENGINE COMPT) ESP/SPS CONTROL MODULE (IN MODULE BOX, RIGHT SIDE OF ENGINE COMPT) FUEL PUMP ASSEMBLY FUEL PUMP RELAY (RIGHT SIDE OF TRUNK) FUEL TANK PRESSURE SENSOR (IN FUEL TANK) FUSE 23 FUSE 6 FUSE AND RELAY BOX GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/BLU/WHT WIRE GRY/BRN WIRE GRY/PNK WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT AT ALL TIMES REAR FUSE BOX FUSE 13 HOT IN RUN OR START INSTRUMENT CLUSTER SYSTEM MAXI FUSE BOX NCA WIRE OIL LEVEL SWITCH (RIGHT SIDE OF OIL PAN) PEDAL VALUE SENSOR (RIGHT REAR OF ENG COMPT) RED WIRE RED/BLU WIRE RED/BLU/BLK WIRE RED/BLU/YEL WIRE RED/GRN WIRE RED/YEL WIRE RIGHT REAR SEAT STOP LAMP SWITCH TERMINAL BLOCK (RIGHT FOOTWELL) TERMINAL BLOCK (STOP LAMP SWITCH) VIO/WHT WIRE WHT WIRE WHT/YEL WIRE YEL WIRE YEL/GRN WIRE YEL/VIO WIRE