Mercedes-Benz S-class W140 (1991-1998) blk/yel/red Wiring diagrams

87 ABS ABS ABS ASR WARNING IND. WARNING IND. SPEEDOMETER ASR ASR FUNCTION IND. ASR LATERAL ACCELERATION SENSOR ASR OFF SWITCH RIGHT REAR AXLE VSS ASR/SPS CONTROL UNIT BASE MODULE (RIGHT REAR OF ENGINE COMPARTMENT, IN MODULE BOX) BLK WIRE BLK/PNK WIRE BLK/PNK/WHT WIRE BLK/RED WIRE BLK/RED/WHT WIRE BLK/WHT WIRE BLK/YEL/RED WIRE BLS BLU WIRE BLU/WHT WIRE BRAKE WARNING IND BRN WIRE BRN/BLK (OR BLU/WHT) WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRS OEF HAS COMPUTER DATA LINES SYSTEM DF HR MDF HR DF HL MDF HL DFA VR DFAVL EXTERIOR LAMP FAILURE MONITORING UNIT FUSE 23 FUSE BOX (LEFT REAR OF ENGINE COMPARTMENT) GRN WIRE GRY WIRE GRY/RED WIRE HAS HOT IN RUN OR START INSTRUMENT CLUSTER LEFT FRONT AXLE VSS (BEHIND CLUSTER) SENSOR LEFT REAR WHEEL SPEED NCA WIRE PARK BRAKE SWITCH (AT PARK BRAKE RELEASE) PNK WIRE RED WIRE RED/BLU WIRE RED/YEL WIRE RHEOSTAT RIGHT FRONT AXLE VSS SENSOR STOP LIGHT SWITCH (TOP OF BRAKE PEDAL SUPPORT) TERMINAL BLOCK (RIGHT REAR OF ENGINE COMPARTMENT) TEST CONNECTION FOR DIAGNOSIS WHT WIRE YEL WIRE YEL/BLU WIRE

ABS ABS ASR WARNING IND. WARNING IND. SPEEDOMETER ASR ASR DFA HL ASR FUNCTION IND. ASR OFF SWITCH BASE MODULE (RIGHT REAR OF ENGINE COMPARTMENT, IN MODULE BOX) BLK WIRE BLK/GRN/VIO WIRE BLK/RED/WHT WIRE BLK/WHT WIRE BLK/YEL/RED WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE CC CONTROL MODULE DF HR 87 ABS BLS DF HR MDF HR DF HL MDF HL DFAVL DFA VR ENGINE CONTROL MODULE (RIGHT REAR OF ENGINE COMPT) ETS OFF ETS/SPS CONTROL UNIT (RIGHT REAR OF ENGINE COMPARTMENT, IN MODULE BOX) EXTERIOR LAMP FAILURE MONITORING UNIT FUSE 23 FUSE BOX (LEFT REAR OF ENGINE COMPARTMENT) GRN WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT CLUSTER LEFT FRONT AXLE VSS (BEHIND CLUSTER) SENSOR LEFT REAR WHEEL SPEED NCA WIRE PNK WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RHEOSTAT RIGHT FRONT AXLE VSS RIGHT REAR AXLE VSS SENSOR STOP LIGHT SWITCH (TOP OF BRAKE PEDAL SUPPORT) TERMINAL BLOCK TEST CONNECTION FOR DIAGNOSIS VIO/BLU WIRE WHT WIRE YEL WIRE YEL/RED WIRE

1 2 3 6 15 16 18 19 SN 1 15 SN 2 2 3 4 5 6 TK DF HD SN 2 TK SN 1 32/2 ALARM HORN ATA CONTROL MODULE (RIGHT SIDE OF TRUNK) BLK WIRE BLK/RED WIRE BLK/YEL/RED WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/RED WIRE BRN/YEL WIRE CENTRAL LOCKING INSIDE SWITCH CONVENIENCE CONTROL MODULE (RIGHT SIDE OF TRUNK) DIAGNOSTIC CONNECTOR ENGINE HOOD SWITCH FUSE 11 FUSE 15 FUSE 2 FUSE 23 FUSE BOX GRN WIRE GRY WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM (FUSE 12) HEADLIGHTS SYSTEM (FUSE 8) HEADLIGHTS SYSTEM (FUSE 9) HOT AT ALL TIMES HOT IN RUN OR START INFRARED REMOTE CONTROL MODULE LEFT FRONT DOOR ACTUATOR LEFT FRONT DOOR LOCK SWITCH LEFT FRONT DOOR SWITCH LEFT REAR DOOR SWITCH RIGHT REAR DOOR SWITCH LOCK CATCH/ TRUNK LID MICRO- SWITCH NCA WIRE PSE CONTROL MODULE (RIGHT SIDE OF REAR SEAT) RADIO CONTROL MODULE REAR FUSE BOX RED WIRE RED/GRY WIRE RIGHT FRONT DOOR LOCK SWITCH RIGHT FRONT DOOR SWITCH RIGHT TRUNK LAMP SEDAN, COUPE SN 1 SN 2 SN 2 DF HD TK STOP LAMP SWITCH TERMINAL TERMINAL BLOCK TK TK DF HD TRUNK LID LOCK SWITCH WHT WIRE WHT/GRN WIRE WHT/PNK WIRE YEL WIRE

ABS CONTROL MODULE AUS TNA 87 UG 87 UG 31 31 BASE MODULE (IN MODULE BOX, ON RIGHT REAR OF ENGINE COMPT) BLK WIRE BLK/GRN WIRE BLK/GRN/PPL WIRE BLK/YEL/RED WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE CAN-L CAN-H COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH CRUISE CONTROL/IDLE SPEED CONTROL ACTUATOR DF VL 87 KP DFA HA DFA VL FUSE BOX FUSE 23 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/RED WIRE GRY/YEL WIRE HOT IN RUN OR START I/P INSTRUMENT CLUSTER IPW IPS IP- KSK LLK LSK NCA WIRE PNK WIRE PPL PPL 2 RED WIRE RED/GRN WIRE RED/GRN/WHT WIRE RED/WHT WIRE RED/YEL WIRE S-B S+B DF H SSA STARTER LOCK-OUT/ BACKUP LAMP SWITCH ULSK WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/GRN WIRE YEL/GRN/BLK WIRE

ANTI-LOCK BRAKES SYSTEM ASR/SPS CONTROL MODULE BASE MODULE (IN MODULE BOX, ON RIGHT REAR OF ENGINE COMPT) BLK WIRE BLK/GRN WIRE BLK/GRN/PPL WIRE BLK/RED/WHT WIRE BLK/RED/YEL WIRE BLK/YEL/RED WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE CAN-L CAN-H CLOSED THROTTLE POSITION SWITCH COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH DIAGNOSTIC CONNECTOR (RIGHT REAR CORNER OF ENGINE COMPT) ELECTRONIC ACCELERATOR/CRUISE CONTROL/IDLE SPEED CONTROL ACTUATOR FUSE BOX FUSE 23 GRN WIRE GRN/BLU WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE HOT IN RUN OR START INSTRUMENT CLUSTER KSK GETR UGETR LSK MSK NCA WIRE PKS S-B S+B PNK WIRE PPL RED WIRE RED/BLU WIRE RED/GRN WIRE RED/GRN/WHT WIRE RED/WHT WIRE RED/YEL WIRE SPEED- OMETER SPS IPS P- STARTER LOCK-OUT/ BACKUP LAMP SWITCH STOP LAMP SWITCH UPKS USK W/ ADS W/O ADS WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE YEL/BLK/GRN WIRE YEL/GRN WIRE

ABS CONTROL UNIT ABS/ASR CONTROL UNIT BASE MODULE BLK WIRE BLK/GRN/RED WIRE BLK/YEL WIRE BLK/YEL/RED WIRE BLU WIRE BLU/GRN (OR BLK/GRN/VIO) WIRE BLU/GRN WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE DATA LINK CONNECTOR (TOP OF MODULE BOX) GRN WIRE NCA WIRE RED WIRE SPEED SENSITIVE POWER STEERING CONTROL UNIT SPEED SENSITIVE POWER STEERING P-VALVE VIO WIRE W/ TRACTION CONTROL W/O TRACTION CONTROL YEL WIRE

BLK/YEL WIRE BLK/YEL/RED WIRE BRN WIRE COMBINATION RELAY COMBINATION SWITCH FUSE 15 FUSE BOX GRY WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT/GRN WIRE HCS RELAY MODULE HEADLAMP WASHER PUMP HOT AT ALL TIMES HOT IN ACCY, RUN, OR START LEFT HEADLAMP WIPER MOTOR LIGHT SWITCH NCA WIRE OFF PARK HEAD PARK RED WIRE RIGHT HEADLAMP WIPER MOTOR RUN WIRE VIO/YEL WIRE WASH WASHER SWITCH

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

1995-99 1996-99 4 1 (1996-99) (1994-95) AM REAR WINDOW ANTENNA AMPLIFIER ANTENNA ASR/SPS CONTROL MODULE OR ESP/SPS/CONTROL MODULE (RIGHT REAR OF ENGINE COMPT) BLK WIRE BLK/GRY WIRE BLK/GRY/RED WIRE BLK/YEL WIRE BLK/YEL/RED WIRE BLU WIRE BRN WIRE CENTER FILL TWEETER SPEAKER COMBINATION RELAY MODULE CTEL TRANSMITTER/ RECEIVER FM BUMPER ANTENNA AMPLIFIER FUSE 16 FUSE 22 FUSE BOX GRN WIRE GRN/BLK WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE GRY/RED/WHT WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES LEFT FRONT AXLE VSS SENSOR LEFT FRONT DOOR SPEAKER (COUPE) LEFT FRONT DOOR SPEAKER GROUP LEFT REAR DOOR SPEAKER (OTHER) LEFT REAR SPEAKER GROUP LEFT/RIGHT AUDIO POWER AMPLIFIER (LEFT SIDE OF TRUNK) NCA (OR WIRE NCA WIRE POWER ANTENNA SYSTEM RADIO REAR FUSE BOX HOT IN RUN OR START RED WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR SPEAKER (COUPE) RIGHT FRONT DOOR SPEAKER GROUP RIGHT REAR DOOR SPEAKER (OTHER) RIGHT REAR SPEAKER GROUP TERMINAL BLOCK W/ POWER ANTENNA W/O POWER ANTENNA WHT WIRE YEL/BLK WIRE

1 11 3 ASR/ SPS 1 4 3 ESP/ SPS ACTIVATED CHARCOAL CANISTER SHUT-OFF VALVE AIR PUMP AIR PUMP RELAY ASR/SPS CONTROL MODULE BLK WIRE BLK/GRN/VIO WIRE BLK/RED WIRE BLK/RED/WHT WIRE BLK/RED/YEL WIRE BLK/YEL/RED WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE BODY ACCELERATION SENSOR BRN 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) ESP/SPS CONTROL MODULE FUEL PUMP ASSEMBLY FUEL PUMP RELAY FUEL TANK PRESSURE SENSOR 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/RED 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 PEDAL VALUE SENSOR RED WIRE RED/BLU WIRE RED/BLU/BLK WIRE RED/BLU/YEL WIRE RED/YEL WIRE RIGHT REAR SEAT STOP LAMP SWITCH TERMINAL BLOCK (STOP LAMP SWITCH) VIO/GRN WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/YEL WIRE YEL WIRE YEL/GRN WIRE YEL/VIO WIRE