Mercedes-Benz S-class W140 (1991-1998) brn/gry Wiring diagrams

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

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

22/3 30 ZV 15 TK 32/2 36/2 BLK/RED WIRE BLK/RED/VIO WIRE BLU WIRE BLU/GRN WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/RED WIRE CENTER CONSOLE DOME DOME LAMP DOME/READING LAMPS W/ SHUT OFF DELAY DOOR FUSE 11 FUSE 17 FUSE 24 FUSE 7 FUSE BOX GRN WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT IN RUN OR START LEFT FRONT DOOR SWITCH LEFT FRONT EXIT LAMP RIGHT FRONT EXIT LAMP LEFT READ- ING LAMP LEFT REAR DOOR SWITCH (SEDAN) LEFT REAR EXIT LAMP LEFT REAR READING LAMP (SEDAN) REAR DOME LAMP LEFT REAR VANITY MIRROR LEFT SUN VISOR W/ ILLUMINATED VANITY MIRROR LEFT TAIL LAMP UNIT PNEUMATIC CONTROL UNIT READ- ING READ- ING DOME REAR FUSE BOX RED WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR SWITCH RIGHT READ- ING LAMP RIGHT REAR DOOR SWITCH (SEDAN) RIGHT REAR EXIT LAMP RIGHT REAR READING LAMP RIGHT REAR VANITY MIRROR RIGHT SUN VISOR W/ ILLUMINATED VANITY MIRROR RIGHT TAIL- LAMP UNIT TRUNK LAMP ROTARY TUMBLER/ TRUNK LID MICROSWITCH SEDAN SLIDING/ POPUP ROOF SWITCH TERMINAL TRUNK LAMP VIO WIRE WARNING MODULE YEL WIRE

ABS/ASR CONTROL MODULE 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) FUSE 17 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 NCA WIRE PNK WIRE RED WIRE RIGHT FRONT AXLE DAMPER RIGHT FRONT BODY LATERAL ACCELERATION SENSOR RIGHT REAR BODY LATERAL ACCELERATION SENSOR RIGHT REAR AXLE DAMPER STEERING ANGLE SENSOR STOP LAMP SWITCH VALVE UNIT 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 UNIT (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/RED/YEL WIRE GRY/VIO WIRE GRY/VIO/WHT WIRE GRY/WHT/VIO WIRE GRY/YEL 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

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

29/2 BLK WIRE BLK/RED WIRE BLL/RED WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE CONVENIENCE CONTROL UNIT (RIGHT SIDE OF TRUNK) CONVENIENCE RELAY (IN FUSE BOX) ELECTRICALLY ADJUSTABLE, HEATED DRIVER'S SIDE OUTSIDE REARVIEW MIRROR ELECTRICALLY ADJUSTABLE, HEATED FRONT PASSENGER OUTSIDE REARVIEW MIRROR ELECTRONIC STEERING COLUMN ADJUSTMENT SWITCH ELECTRONIC STEERING COLUMN MOTOR GROUP ESC CONTROL CONNECTOR FOLDING MOTOR FUSE 21 FUSE 30 FUSE BOX GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/WHT WIRE GRY/YEL WIRE HORIZONTAL ADJUSTMENT HOT AT ALL TIMES TERMINAL HOT IN RUN LEFT POWER SEAT CONTROL UNIT (UNDER LEFT FRONT SEAT) MIRROR HEATER MIRROR POSITION MIRROR SELECT OUTSIDE REARVIEW MIRROR SWITCH (W/ MEMORY, FOLD-IN/ FOLD-OUT FEATURE) RED WIRE RED/BLK WIRE RED/WHT WIRE STEERING COLUMN IN/OUT STEERING COLUMN UP/DOWN TELESCOPIC ADJUSTMENT TERMINAL TILT ADJUSTMENT VERTICAL ADJUSTMENT WHT WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/WHT WIRE

1 2 3 4 5 6 PNK WIRE 65/1 68/2 78/1 82/2 78/2 82/1 BACKREST BACKREST HEAD RESTRAINT UP/DOWN BLK WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BLU/WHT WIRE BRN WIRE BRN/GRY WIRE CONVENIENCE CONTROL UNIT (RIGHT SIDE OF LUGGAGE COMPT) CONVENIENCE RELAY (IN FUSE BOX) COUPE ONLY FUSE 30 FUSE 37 41 FUSE 38 40 FUSE BOX GRN WIRE GRY WIRE GRY/BRN WIRE HEAD RESTRAINT UP/DOWN HOT AT ALL TIMES INTERIOR LIGHTS SYSTEM (DOOR JAMB SWITCHES) LEFT FRONT ONLY LEFT FRONT RIGHT FRONT LEFT OR RIGHT FRONT DOOR PLUG CONNECTOR LEFT OR RIGHT FRONT POWER SEAT MOTOR GROUP WITH MEMORY LEFT OR RIGHT FRONT POWER SEAT SWITCH LEFT OR RIGHT FRONT SEAT MEMORY CONTROL UNIT (UNDER SEAT) LEFT OR RIGHT FRONT SEATBACK MICROSWITCH (COUPE ONLY) MEMORY MIRROR, STEERING COLUMN ADJUST CONTROL UNIT (RIGHT SIDE OF DASH) ORG/ WIRE PNK WIRE PNK/GRN WIRE POSITION 1 POSITION 2 POSITION 3 RED WIRE RED/BLK WIRE RED/BLK/YEL WIRE RED/WHT WIRE RED/YEL WIRE SEAT CUSHION HEIGHT SEAT FORWARD/ BACKWARD SEAT FWD/BACK SEAT HEIGHT REAR SEAT HEIGHT FRONT SEAT HEIGHT REAR TERMINAL VIO WIRE WHT WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/PNK WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/RED WIRE

ADJUSTABLE CAMSHAFT TIMING SOLENOID AIR PUMP AIR PUMP SWITCH- OVER VALVE AIR RELAY MODULE BLK WIRE BLK/RED WIRE BLK/RED/YEL WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE CAMSHAFT POSITION SENSOR COMPUTER DATA LINES CRANKSHAFT POSITION SENSOR EGR SWITCHOVER VALVE ENGINE CONTROL MODULE (HFM-SFI) ENGINE COOLANT TEMPERATURE SENSOR INTAKE AIR TEMPERATURE SENSOR FUSE BOX FUSE 6 GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT FILM MASS AIR FLOW SENSOR HOT IN RUN OR START IGNITION COIL 1 IGNITION COIL 2 IGNITION COIL 3 INJ 3 INJ. #4 INJ. #2 INJ. #5 INJ. #1 INJ. #6 KNOCK SENSOR 1 (RIGHT SIDE OF ENGINE) KNOCK SENSOR 2 (LEFT SIDE OF ENGINE) NCA WIRE PNK WIRE PNK/RED WIRE RED WIRE RED/GRN WIRE RESONANCE INTAKE MANIFOLD SWITCHOVER VALVE SOLID STATE SPARK PLUG #1 SPARK PLUG #6 SPARK PLUG #2 SPARK PLUG #5 SPARK PLUG #3 SPARK PLUG #4 TERMINAL BLOCK VIO WIRE WHT WIRE WHT/BLU WIRE YEL WIRE YEL/RED WIRE YEL/WHT WIRE