Mercedes-Benz S-class W140 facelift (1994-1999) (behind instrument cluster) Wiring diagrams

ADS CONTROL MODULE ASR/ETS/ESP HYDRAULIC UNIT BASE MODULE BLK/GRN/VIO WIRE BLK/RED/WHT WIRE BLK/RED/YEL WIRE BRN WIRE BRN/BLK WIRE ENGINE CONTROL MODULE FUSE BOX GRN/BLK WIRE GRN/BLU WIRE GRN/PNK WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE HIGH PRESSURE/ RETURN PUMP RELAY MODULE HOT IN RUN OR START FUSE 23 PARKING BRAKE SWITCH RED WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE STOP LAMP SWITCH YEL WIRE YEL/GRN WIRE

ADS CONTROL MODULE ASR/ETS/ESP HYDRAULIC UNIT BASE MODULE BLK/GRN/VIO WIRE BLK/RED WIRE BLK/RED/WHT WIRE BLK/RED/YEL WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE CC/ISC CONTROL MODULE ENGINE CONTROL MODULE FUSE BOX GRN/BLK WIRE GRN/BLU WIRE GRN/PNK WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE HIGH PRESSURE/ RETURN PUMP RELAY MODULE HOT IN RUN OR START FUSE 23 PARKING BRAKE SWITCH RED WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE STOP LAMP SWITCH VIO/BLU WIRE YEL WIRE YEL/BLK/GRN WIRE YEL/GRN WIRE

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

12/1 12/2 14/1 14/3 20/2 36/2 5.1 ALTERNATOR BLK WIRE BLK/RED/YEL WIRE BLU WIRE BRN WIRE COMBINATION SWITCH COUPE DAYTIME RUNNING LAMP CONTROL MODULE (BEHIND CENTER OF DASH) EXTERIOR LAMP FAILURE MONITORING UNIT (LEFT REAR OF ENG COMPT) EXTERIOR LAMP SWITCH FOG LAMP SWITCH FUSE 11 7.5 FUSE 14 FUSE 12 FUSE 13 FUSE 15 FUSE 6 FUSE 8 FUSE 9 FUSE 10 FUSE 26 FUSE BOX FUSE BOX FUSE 24 GRN WIRE GRY WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL/GRN WIRE HEAD HI FLASH HOT AT ALL TIMES HOT AT ALL TIMES IGNITION SWITCH HOT IN ACCY, RUN, OR START HOT IN RUN OR START INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM LEFT HEADLAMP UNIT LEFT RIGHT HEADLAMP HEADLAMP UNIT UNIT LEFT TAILLAMP UNIT LEFT TAILLAMP UNIT RIGHT TAILLAMP UNIT LOCK MAXI FUSE BOX NCA WIRE NSE OFF PARK OFF RH PARK OFF RH PARK HEAD LH OFF RH PARK LH HEAD RED WIRE RH LH RIGHT HEADLAMP UNIT RIGHT TAILLAMP UNIT RUN WIRE SEDAN SEPARATION RELAY MODULE TAIL/ PARK TAIL/ PARK TAIL/ PARK VIO WIRE VIO/WHT WIRE W/ XENON LAMPS W/O XENON LAMPS WHT WIRE WIPER/ WASHER SYSTEM YEL WIRE YEL/RED WIRE YEL/WHT WIRE

ADS CONTROL MODULE (IN MODULE BOX, RIGHT REAR OF ENGINE COMPT) ADS WARNING IND. BASE MODULE (RIGHT REAR SIDE OF ENGINE COMPARTMENT, IN MODULE BOX) BLK WIRE BLK/GRN WIRE BLK/GRN/RED WIRE BLK/RED/WHT WIRE BLK/RED/YEL WIRE BLK/YEL WIRE BLS LAM ZAS BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/BLU/WHT WIRE BRN/GRY WIRE BRN/YEL WIRE COMFORT/SPORT SWITCH DATA LINK CONNECTOR (RIGHT REAR OF ENGINE COMPARTMENT) ESP/SPS CONTROL MODULE FUSE 17 FUSE 23 FUSE 24 FUSE BOX GRN WIRE GRN/RED WIRE GRN/VIO WIRE GRY WIRE GRY/YEL WIRE HAR HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT CLUSTER LEFT FRONT AXLE DAMPER LEFT FRONT BODY LATERAL ACCELERATION SENSOR LEFT REAR AXLE DAMPER LW DF RED WIRE RIGHT FRONT AXLE DAMPER RIGHT FRONT BODY LATERAL ACCELERATION SENSOR RIGHT REAR AXLE DAMPER RIGHT REAR BODY LATERAL ACCELERATION SENSOR STEERING ANGLE SENSOR STOP LAMP SWITCH VALVE UNIT VIO WIRE VVR+ WHT WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE ZA+ VVL ZA+ ZA- HAL ZA- ZAS ZR+ ZR- ZRS 31

22/2 36/2 37/2 5.1 BACK-UP LAMPS CIRCUIT BACKUP BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLK/RED/GRN WIRE BLK/RED/VIO WIRE BLK/RED/WHT WIRE BLK/WHT WIRE BLK/YEL/GRN WIRE BLU/WHT WIRE BRN WIRE BRN/GRY WIRE CENTER HIGH MOUNTED STOP LAMP TURN SIGNAL/ SIDE MARKER LAMP COMBINATION RELAY (IN FUSE BOX) COMBINATION SWITCH EXT LAMP FAILURE IND EXTERIOR LAMP FAILURE MONITORING MODULE (IN LEFT REAR OF ENGINE COMPT) EXTERIOR LAMP SWITCH FUSE 17 FUSE 23 FUSE 24 FUSE 25 FUSE 9 FUSE BOX FUSE BOX FUSE 8 GRN WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/GRN/WHT WIRE GRY/RED WIRE GRY/VIO WIRE GRY/VIO/WHT WIRE GRY/WHT/VIO WIRE GRY/YEL WIRE GRY/YEL/RED WIRE GRY/YEL/WHT WIRE HAZARD FLASHER SWITCH HEAD LH HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM WIPER/ WASHER SYSTEM HOT AT ALL TIMES HOT IN OFF, ACCY HOT IN RUN OR START INSTR CLUST SYSTEM INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM LEFT HEADLAMP UNIT LEFT LICENSE PLATE LAMP LEFT TURN IND LH HEAD HEAD MARKER MARKER FOG NCA WIRE OFF PARK OFF PARK RH OFF RH PARK RED WIRE RIGHT HEADLAMP UNIT RIGHT LICENSE PLATE LAMP RIGHT TAILLAMP UNIT RIGHT TURN IND STOP STOP LAMP SWITCH TAIL/ PARK TERMINAL TERMINAL BLOCK TURN TURN LEFT TAILLAMP UNIT TURN SIGNAL SWITCH TURN SIGNAL/ SIDE MARKER LAMP VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

22/2 36/2 37/2 5.1 BACK-UP LAMPS CIRCUIT BACKUP BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLK/RED/GRN WIRE BLK/RED/VIO WIRE BLK/RED/WHT WIRE BLK/WHT WIRE BLK/YEL/GRN WIRE BLU/WHT WIRE BRN WIRE BRN/GRY WIRE CENTER HIGH MOUNTED STOP LAMP COMBINATION RELAY (IN FUSE BOX) COMBINATION SWITCH EXT LAMP FAILURE IND EXTERIOR LAMP FAILURE MONITORING MODULE (IN FUSE BOX) EXTERIOR LAMP SWITCH FUSE 17 FUSE 23 FUSE 24 FUSE 25 FUSE 9 FUSE BOX FUSE BOX FUSE 8 GRN WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/GRN/WHT WIRE GRY/RED WIRE GRY/VIO WIRE GRY/VIO/WHT WIRE GRY/WHT/VIO WIRE GRY/YEL WIRE GRY/YEL/RED WIRE GRY/YEL/WHT WIRE HAZARD FLASHER SWITCH HEAD LH HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM WIPER/ WASHER SYSTEM HOT AT ALL TIMES HOT IN OFF, ACCY HOT IN RUN OR START INSTR CLUST SYSTEM INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM LEFT LICENSE PLATE LAMP LEFT TURN IND LEFT TURN SIGNAL/ SIDE MARKER LAMP LEFT HEAD LAMP UNIT LH HEAD HEAD MARKER NCA WIRE OFF PARK OFF PARK RH OFF RH PARK RED WIRE RIGHT LICENSE PLATE LAMP RIGHT TAILLAMP UNIT RIGHT TURN IND RIGHT TURN SIGNAL/ SIDE MARKER LAMP RIGHT HEAD LAMP UNIT STOP STOP LAMP SWITCH STOP MARKER FOG TAIL/ PARK TERMINAL TERMINAL BLOCK TURN TURN LEFT TAILLAMP UNIT TURN SIGNAL SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

ANTILOCK BRAKE SYSTEM HYDRAULIC UNIT BATTERY BRN WIRE ELECTROLYTIC CAPACITOR EMISSIONS SENSOR, ENGINE CONTROL MODULE, HOT FILM MAF SENSOR GLOVE COMPARTMENT LAMP FRONT CIGAR LIGHTER REAR WINDOW DEFROSTER RIGHT FRONT SEAT BELT BUCKLE/BELT COMFORT SWITCH RIGHT SEAT BELT EXTENDER SEAT BELT BUCKLE SWITCHES, SRS CONTROL MODULE TRANSMISSION OVERLOAD PROTECTION SWITCH

12/1 12/2 14/2 14/3 14/1 20/2 5.1 BLK WIRE BRN WIRE COMBINATION SWITCH EXTERIOR LAMP FAILURE MONITORING UNIT (LEFT REAR OF ENGINE COMPARTMENT) EXTERIOR LAMP SWITCH FOG LAMP FOG LAMP HIGH LOW FOG LAMP SWITCH FUSE 12 FUSE 11 FUSE 13 FUSE 14 FUSE 15 FUSE 26 FUSE 8 FUSE 9 FUSE 10 FUSE BOX GRN WIRE GRN/WHT WIRE GRY WIRE HEAD HEAD- LAMP HIGH BEAM INDICATOR HIGH LOW HOT AT ALL TIMES HOT IN ACCY, RUN, OR START INSTRUMENT CLUSTER LEFT HEADLAMP UNIT LO HI FLASH NCA WIRE NSE OFF PARK OFF PARK HEAD OFF RH PARK LH HEAD RED WIRE RH LH RIGHT HEADLAMP UNIT HEAD- LAMP WHT WIRE YEL WIRE

11/1 12/2 14/3 14/1 14/2 20/2 5/1 12/1 4/1 ANTI-LOCK BRAKE SYSTEM BLK WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BRN WIRE COMBINATION SWITCH LO DATA LINK CONNECTOR (DTC READOUT) (RIGHT SIDE OF ENGINE COMPT) EXTERIOR LAMP FAILURE MONITORING UNIT (LEFT REAR OF ENGINE COMPARTMENT) EXTERIOR LAMP SWITCH FOG LAMP SWITCH FRONT AXLE SENSOR FUSE 11 FUSE 13 FUSE 14 FUSE 12 FUSE 15 FUSE 26 FUSE 4 FUSE 8 FUSE 7 FUSE 9 FUSE 10 FUSE BOX GRN WIRE GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/RED WIRE HEAD HEADLAMP RANGE ADJUSTMENT CONTROL MODULE HI FLASH HIGH BEAM LAMP HOT AT ALL TIMES HOT IN ACCY, RUN, OR START HOT IN RUN OR START INSTRUMENT CLUSTER HIGH BEAM INDICATOR LAMP LEFT FOG LAMP LEFT HEADLAMP UNIT LOW BEAM XENON LAMP NCA WIRE NSE OFF OFF PARK OFF RH PARK LH HEAD ORG/ WIRE REAR AXLE SENSOR REAR FUSE BOX RED WIRE RED/YEL WIRE RH PARK LH HEAD RIGHT FOG LAMP RIGHT HEADLAMP UNIT STANDING/ PARKING LAMP STANDING/ PARKING LAMP HIGH BEAM WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE