Mercedes-Benz S-class W140 (1991-1998) off Wiring diagrams

32/1 32/2 37/1 A/C SYSTEM ANTI-THEFT ALARM CONTROL UNIT (RIGHT SIDE OF TRUNK) BLK WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/GRY/YEL WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CENTER CONSOLE CF CONTROL UNIT (RIGHT SIDE OF TRUNK) CL TRUNK LID SWITCH FUSE 11 FUSE 25 FUSE 3 FUSE BOX GRN WIRE GRN/BLK WIRE GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT IN RUN OR START IGNITION/ STARTER SWITCH INTERIOR CL SWITCH LEFT FRONT DOOR LOCK SWITCH LEFT REAR DOOR SWITCH NCA WIRE OFF PSE CONTROL MODULE REAR FUSE BOX RED WIRE RED/GRN WIRE RHR RELEASE SWITCH RIGHT FRONT DOOR LOCK SWITCH RIGHT FRONT DOOR SWITCH RIGHT REAR DOOR SWITCH ROTARY TUMBLER/ TRUNK LID MICROSWITCH RUN WIRE STARTER LOCK-OUT/ BACKUP LAMP SWITCH TERMINAL TERMINAL BLOCK TEST CONNECTION FOR DIAGNOSIS (RIGHT SIDE OF ENGINE COMPT) TRUNK LID LOCK SWITCH TRUNK LID REMOTE CONTROL VALVE (1995) WHT WIRE WHT/GRN WIRE YEL WIRE

ACCY BATTERY BLK WIRE BLU WIRE BRN WIRE CHARGE INDICATOR D+ GENERATOR ELECTROLYTIC CAPACITOR FUSE/RELAY BOX (LEFT REAR OF ENGINE FUSE 23 COMPARTMENT) IGNITION/ STARTER SWITCH INSTRUMENT CLUSTER OFF PNK/GRN/BLK WIRE PNK/YEL/BLK WIRE RED WIRE RUN WIRE TERMINAL BLOCK

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

ANTI-THEFT ALARM CONTROL UNIT (RIGHT SIDE OF TRUNK) BLK WIRE BLK/GRN/VIO WIRE BLK/RED/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/PNK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/GRY/YEL WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CA SUPPLY PUMP CONVENIENCE CONTROL UNIT (RIGHT SIDE OF TRUNK) FUSE 2 GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START IGNITION/ STARTER SWITCH INFRARED REMOTE CONTROL UNIT (RIGHT SIDE OF TRUNK) LEFT FRONT DOOR ACTUATOR LEFT FRONT DOOR CLOSING ASSIST MICROSWITCH LEFT FRONT DOOR IR RECEIVER LEFT FRONT DOOR LOCK SWITCH LEFT FRONT DOOR ROTARY TUMBLER MICROSWITCH LUGGAGE COMPARTMENT FUSE BOX FUSE 15 NCA WIRE OFF PSE CONTROL MODULE RED WIRE RED/WHT WIRE RIGHT FRONT DOOR CLOSING ASSIST MICROSWITCH RIGHT FRONT DOOR IR RECEIVER RIGHT FRONT DOOR LOCK SWITCH RIGHT FRONT DOOR ROTARY TUMBLER MICROSWITCH RIGHT REAR DOOR CLOSING ASSIST MICROSWITCH RIGHT REAR DOOR ROTARY TUMBLER MICROSWITCH ROTARY TUMBLER/ TRUNK LID MICROSWITCH RUN WIRE STARTER LOCK-OUT RELAY MODULE TERMINAL TEST CONNECTION FOR DIAGNOSIS (RIGHT SIDE OF ENGINE COMPT) TRUNK LID IR RECEIVER TRUNK LID LOCK SWITCH YEL WIRE YEL/VIO WIRE YEL/WHT WIRE

22/3 36/2 8 3 (ADS II) (ADS I) ADS CONTROL MODULE (IN MODULE BOX, RIGHT REAR OF ENGINE COMPT) ANTI-LOCK BRAKES SYSTEM ANTI-LOCK BRAKES SYSTEM EXTERIOR LIGHTS SYSTEM AUDIBLE TURN SIGNAL INDICATOR BASE MODULE (IN MODULE BOX) BLK WIRE BLK/GRN WIRE BLK/RED/VIO WIRE BLK/WHT WIRE BLK/YEL/RED WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL/RED WIRE BRAKE FLUID LEVEL SWITCH BRAKE PAD WEAR INDICATOR BRN WIRE BRN/BLK WIRE BRN/BLU (OR BLU/GRN) WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CANADA ONLY CHARGE INDICATOR CHECK ENGINE INDICATOR COMBINATION RELAY (IN FUSE BOX) COOLANT LEVEL INDICATOR COOLANT LEVEL SWITCH COOLANT TEMP GAUGE COOLANT TEMPERATURE GAUGE SENSOR DIAGNOSTIC MODULE ELECTRONIC CLOCK ELECTRONIC SPEEDOMETER ENGINE CONTROL MODULE EXTERIOR LAMP FAILURE INDICATOR EXTERIOR LIGHTS SYSTEM WARNING SYSTEM FUEL CONSUMPTION INDICATOR FUEL LEVEL GAUGE FUEL LEVEL SENSOR FUEL RESERVE INDICATOR FUSE 24 FUSE BOX FUSE 17 GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/RED WIRE GRY/VIO WIRE HEADLIGHTS SYSTEM HIGH BEAM INDICATOR HOT AT ALL TIMES HOT IN RUN OR START IGNITION SWITCH ILLUMINATION INDICATOR ABS INDICATOR ADS INDICATOR ASR INDICATOR ASR WARNING INDICATOR SRS INDICATOR, PARK BRAKE BRAKE FLUID INSTRUMENT CLUSTER LEFT REAR BRAKE PAD BRAKE PAD WEAR SENSOR WEAR SENSOR LEFT TURN INDICATOR LH-SFI CONTROL MODULE OFF OIL LEVEL INDICATOR OIL LEVEL SWITCH OIL PRESSURE GAUGE OIL PRESSURE SENSOR OUTSIDE TEMPERATURE INDICATOR OUTSIDE TEMPERATURE SENSOR PARKING BRAKE SWITCH PNK WIRE PNK/YEL WIRE PNK/YEL/BLK WIRE REAR AXLE MULTIPLE CIRCUIT JUNCTION CONNECTOR RED WIRE RED/BLU WIRE RED/WHT WIRE RHEOSTAT RIGHT FRONT BRAKE PAD WEAR SENSOR RIGHT REAR BRAKE PAD WEAR SENSOR RIGHT TURN INDICATOR RUN WIRE SEAT BELT INDICATOR STARTING/CHARGING SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM TACHOMETER TERMINAL BLOCK (RIGHT FOOTWELL) VIO WIRE WARNING BUZZER WHT WIRE WHT/BLK WIRE WINDSHIELD WASHER FLUID INDICATOR WINDSHIELD WASHER FLUID LEVEL SWITCH YEL WIRE YEL/BLK WIRE YEL/RED WIRE YEL/VIO WIRE

17/2 17/1 32/1 20/2 32/2 47 -1 47 -2 74/2 74/1 71/2 20/1 A/C SYSTEM BLOWER UNIT ABS/ASR HYDRAULIC UNIT ACCY AIRBAG INDICATOR ANTI- THEFT ALARM SYSTEM, INFRARED REMOTE CONTROL, REAR HEATED SEATS ANTI-THEFT ALARM SYSTEM, INFRARED REMOTE CONTROL, REAR HEAD RESTRAINTS BASE MODULE BATTERY BLK WIRE BLU WIRE BRN WIRE CANADA CENTRAL LOCKING, CLOSING ASSIST CONVENIENCE FEATURE DAYTIME RUNNING LAMPS ELECTROLYTIC CAPACITOR ETS/SPS CONTROL MODULE FRONT CIGAR LIGHTER FUEL PUMPS FUSE 11 FUSE 12 FUSE 15 FUSE 16 FUSE 16 FUSE 13 FUSE 14 FUSE 15 FUSE 17 FUSE 1 FUSE 2 FUSE 22 FUSE 3 FUSE 4 (RIGHT FRONT OF LUGGAGE COMPART- MENT) (NOT USED) FUSE 34 FUSE 35 FUSE 5 FUSE 2 FUSE 4 FUSE 5 FUSE 6 FUSE 7 FUSE 9 FUSE 10 FUSE 6 (LEFT REAR OF ENGINE COMPART- MENT) FUSE BOX GRN WIRE GRN/BLK WIRE GRY WIRE HEATED REAR WINDOW HEATED SEATS HEATED SEATS, DEFOGGER, RELAY MODULE, SEAT BELT EXTENDER IGNITION/ STARTER SWITCH INFRARED CENTRAL LOCKING MAXI FUSE BOX NCA WIRE OFF PNK WIRE PNK/ PNK/ PNK/ TO FUSE BOX PNK/ WIRE PREGLOW TIME-LIMIT RELAY RADIO SOUND SYSTEM: TUNER, AMPLIFIER REAR CIGAR LIGHTER REAR CLIMATE CONTROL REAR FUSE BOX REAR ILLUMINATED VANITY MIRROR POWER WINDOWS REAR WINDOW SUNSHIELD, CONVENIENCE SYSTEM SRS CONTROL UNIT RED WIRE RUN WIRE SEATBELT WARNING MODULE SLIDING/ POP-UP ROOF STARTER LOCK-OUT/ BACK-UP LAMP RELAY SELECTOR LEVER POSITION RECOGNITION FUSE 3 TELE- PHONE TERMINAL TERMINAL BLOCK TERMINAL BLOCK X/4 TO COMBINATION SWITCH (DIAGRAM 2 OF 2) TO EXTERIOR LAMP SWITCH TO FUSE BOX, (DIAGRAM 2 OF 2) TO TERMINAL BLOCK (DIAGRAM 2 OF 2) VIO WIRE WHT WIRE WIPER MOTOR AUXILIARY FAN RELAY WIPER RELAY, WASHER PUMP, COMBINATION RELAY, REAR WINDOW DEFOGGER SWITCH YEL WIRE YEL/BLK 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

ACCY BATTERY BLK WIRE BRN WIRE ELECTROLYTIC CAPACITOR IGNITION/ STARTER SWITCH OFF PNK/GRN/BLK WIRE RED WIRE RUN WIRE STARTER STARTER LOCK-OUT RELAY MODULE (RIGHT REAR CORNER OF ENGINE COMPT) TERMINAL BLOCK TRANSMISSION CONTROL MODULE (IN MODULE BOX, RIGHT REAR OF ENGINE COMPT) VIO WIRE VIO/WHT WIRE YEL/BLU WIRE

"CHECK ENGINE" MIL BASE MODULE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLK/YEL/RED WIRE BRN WIRE BRN/RED/GRN WIRE BRN/WHT WIRE DM PRESSURE SENSOR FUSE 19 FUSE AND RELAY BOX GRN/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES TERMINAL BLOCK 2 30 IGNITION COILS IGNITION SWITCH INSTRUMENT CLUSTER OFF PNK/GRN/BLK WIRE PURGE CONTROL VALVE RED WIRE RED/BLU WIRE RED/BLU/BLK WIRE RED/BLU/YEL WIRE RED/GRN WIRE RED/GRN/BLK WIRE RED/YEL WIRE RUN WIRE TERMINAL BLOCK YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/WHT WIRE

"CHECK ENGINE" MIL BASE MODULE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLK/YEL/RED WIRE BRN WIRE BRN/RED/GRN WIRE BRN/WHT WIRE DM PRESSURE SENSOR FUSE 19 FUSE AND RELAY BOX GRN/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES TERMINAL BLOCK 2 30 IGNITION COILS IGNITION SWITCH INSTRUMENT CLUSTER OFF PNK/GRN/BLK WIRE PURGE CONTROL VALVE RED WIRE RED/BLU WIRE RED/BLU/BLK WIRE RED/BLU/YEL WIRE RED/GRN WIRE RED/GRN/BLK WIRE RED/YEL WIRE RUN WIRE TERMINAL BLOCK YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/WHT WIRE