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

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 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

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

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

47/1 AUDIO POWER AMPLIFIER AUTOMATIC ANTENNA BLK WIRE BLU WIRE BRN WIRE FUSE 16 FUSE BOX HOT AT ALL TIMES NCA WIRE RADIO RED/WHT WIRE RED/YEL WIRE

69/1 BLK/BRN WIRE BLK/GRN WIRE BLK/PNK WIRE BLK/VIO WIRE BLK/YEL WIRE BRN WIRE CENTER CONSOLE FUSE 15 FUSE 32 FUSE BOX GRN/BLK WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT IN ACCY, RUN, OR START INTERIOR LIGHTS SWITCH LEFT REAR HEAD RESTRAINT MOTOR LEFT REAR HEAD RESTRAINT RAISE/LOWER SWITCH REAR FUSE BOX REAR HEAD RESTRAINT CONTROL MODULE (BELOW LEFT REAR SEAT) REAR HEAD RESTRAINT SWITCH (CONSOLE) RED/GRN WIRE RED/YEL WIRE RIGHT REAR HEAD RESTRAINT MOTOR RIGHT REAR HEAD RESTRAINT RAISE/LOWER SWITCH YEL/BLK WIRE

2 11 9 18 19 17 16 8 10 13 20 12 PNK WIRE 69/2 BACKREST ADJUSTMENT BACKREST FWD/ BKWD BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/PNK WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BRN/BLK WIRE CENTER CONSOLE CONVENIENCE CONTROL UNIT (RIGHT SIDE OF TRUNK) CONVENIENCE RELAY (IN FUSE BOX) CUSHION ANGLE FUSE 31 FUSE BOX GRN WIRE GRN/BLK WIRE GRY WIRE GRY/BLU WIRE HEAD RESTRAINT UP/DOWN HOT AT ALL TIMES LEFT REAR DOOR PLUG CONNECTION LEFT REAR DOOR PLUG CONNECTOR LEFT REAR SEAT CUSHION ADJUSTMENT SWITCH LUGGAGE COMPARTMENT FUSE BOX FUSE 15 PNK WIRE PNK/BLK WIRE REAR BACKREST ADJUSTMENT REAR HEAD RESTRAINT REAR HEAD RESTRAINT CONTROL UNIT (BELOW REAR SEAT) REAR HEAD RESTRAINT SWITCH RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE RIGHT REAR DOOR PLUG CONNECTION RIGHT REAR DOOR PLUG CONNECTOR RIGHT REAR SEAT CUSHION ADJUSTMENT SWITCH TERMINAL VIO WIRE WHT WIRE YEL WIRE YEL/BLK WIRE