Mercedes-Benz C-class W202 facelift (1997-2001) gry/vio Wiring diagrams

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 BLWR CTRL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 DIAG 30 15 DATA 31 PUMP A/C COMPRESSOR A/C PUSHBUTTON CONTROL MODULE ASPIRATOR BLOWER BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/PNK WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CMPR CLTCH DATA DRIVER-SIDE FUSE, RELAY MODULE BOX DUOVALVE ED B ED M FR B FR FUSE 20 FUSE 29 FUSE 30 FUSE 38 FUSE, RELAY BOX (ON LEFT REAR OF ENGINE COMPARTMENT) GRN WIRE GRN/BLK WIRE GRN/PNK WIRE GRN/VIO WIRE GRY/PNK WIRE GRY/RED WIRE GRY/VIO WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT IN RUN OR START IN-CAR TEMPERATURE SENSOR IN-CAR TEMPERATURE SENSOR (IN DOME LIGHT ASSEMBLY) INSTRUMENT CLUSTER LEFT-SIDE WATER VALVE NCA WIRE ORG/ WIRE PNK WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE REFRIGERANT PRESSURE SENSOR (ON RECEIVER-DRIER, BEHIND LEFT HEADLIGHT) REFRIGERANT TEMPERATURE SENSOR (ON RECEIVER-DRIER, BEHIND LEFT HEADLIGHT) RIGHT-SIDE WATER VALVE SUCTION FAN AUXILIARY FAN SUN SWITCHOVER VALVE BLOCK WHT/BRN WIRE WHT/GRN WIRE WHT/PNK WIRE WHT/VIO WIRE YEL WIRE

1/A INSTRUMENT CLUSTER HIGH BEAM ON INPUT BLK WIRE BLK/GRY WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/VIO WIRE COMBINATION SWITCH DAYTIME RUNNING LIGHT CONTROL MODULE (BEHIND LEFT SIDE OF DASH) EXTERIOR LAMP FAILURE EXTERIOR LAMP SWITCH EXTERIOR LIGHTS SYSTEM (REAR FOG LAMP) EXTERIOR LIGHTS SYSTEM POWER DISTRIBUTION SYSTEM FLASH HI FOG LAMP FUSE FUSE 19 FUSE 22 FUSE 24 FUSE 25 FUSE 32 FUSE 31 FUSE 33 FUSE 35 FUSE/ RELAY BOX GRN WIRE GRY WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE HEAD HIGH LOW HOT AT ALL TIMES HOT IN ACCY, RUN, OR START HOT IN OFF OR ACCY HOT IN RUN OR START INSTRUMENT CLUSTER SYSTEM LEFT FOOTWELL) LEFT HEADLAMP UNIT LH HEAD LOW HIGH MONITORING MODULE (ON LEFT REAR OF ENGINE COMPARTMENT) NCA WIRE NSE FOG LIGHTS SWITCH OFF OFF PARK OFF RH PARK OFF RH PARK HEAD LH PNK WIRE RED WIRE RELAY BOX FUSE 34 RH PARK HEAD LH RIGHT HEADLAMP UNIT SEPARATION RELAY MODULE TERMINAL BLOCK TRANSMISSIONS SYSTEM ENGINE CONTROLS SYSTEM WHT WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE

1/A INSTRUMENT CLUSTER HIGH BEAM ON INPUT BLK WIRE BLU WIRE BRN WIRE COMBINATION SWITCH EXTERIOR LAMP FAILURE EXTERIOR LAMP SWITCH EXTERIOR LIGHTS SYSTEM (REAR FOG LAMP) EXTERIOR LIGHTS SYSTEM POWER DISTRIBUTION SYSTEM FLASH HI FOG LAMP FOG LIGHTS SWITCH FUSE FUSE 22 FUSE 24 FUSE 25 FUSE 32 FUSE 31 FUSE 33 FUSE 35 FUSE/ RELAY BOX GRN WIRE GRY WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE HEAD HOT AT ALL TIMES HOT IN ACCY, RUN, OR START HOT IN OFF OR ACCY INSTRUMENT CLUSTER SYSTEM LEFT HEADLAMP UNIT LH HEAD MONITORING MODULE (ON LEFT REAR OF ENGINE COMPARTMENT) NCA WIRE NSE OFF OFF PARK OFF RH PARK OFF RH PARK HEAD LH PNK WIRE RED WIRE RELAY BOX FUSE 34 RH PARK HEAD LH RIGHT HEADLAMP UNIT WHT WIRE YEL WIRE

1/A INSTRUMENT CLUSTER HIGH BEAM ON INPUT BLK WIRE BLU WIRE BRN WIRE COMBINATION SWITCH EXTERIOR LAMP FAILURE EXTERIOR LAMP SWITCH EXTERIOR LIGHTS SYSTEM (REAR FOG LAMP) EXTERIOR LIGHTS SYSTEM POWER DISTRIBUTION SYSTEM FLASH HI FOG LIGHTS SWITCH FUSE FUSE 24 FUSE 25 FUSE 32 FUSE 31 FUSE 33 FUSE 35 FUSE, RELAY BOX (ON LEFT REAR OF ENGINE COMARTMENT) FUSE 22 GRN WIRE GRY WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE HEAD HOT AT ALL TIMES HOT IN ACCY, RUN, OR START HOT IN OFF OR ACCY INSTRUMENT CLUSTER SYSTEM LEFT FOG LAMP LH HEAD MONITORING MODULE (ON LEFT REAR OF ENGINE COMPARTMENT) NCA WIRE NSE OFF OFF PARK OFF RH PARK OFF RH PARK HEAD LH PNK WIRE RED WIRE RELAY BOX FUSE 34 RH PARK HEAD LH RIGHT FOG LAMP TO LEFT HEADLAMP UNIT (DIAGRAM TO RIGHT HEADLAMP UNIT (DIAGRAM WHT WIRE YEL WIRE

ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/BLU WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE DATA LINK CONNECTOR FOR DTC FROM EXTERIOR LAMP FAILURE MONITORING MODULE (DIAGRAM FROM FUSE 33 (DIAGRAM FROM FUSE 34 (DIAGRAM FRONT AXLE SENSOR (HEADLAMP RANGE ADJUSTMENT) FUSE 13 FUSE, RELAY BOX (ON LEFT REAR OF ENGINE COMARTMENT) GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GRY WIRE GRY/VIO WIRE HEADLAMP RANGE ADJUSTMENT CONTROL MODULE HIGH BEAM HIGH BEAM STANDING/ PARKING HOT IN RUN OR START LEFT HEADLAMP UNIT LOW BEAM XENON NCA WIRE REAR AXLE SENSOR (HEADLAMP RANGE ADJUSTMENT) RED WIRE RED/YEL WIRE RIGHT HEADLAMP UNIT STANDING/ PARKING VIO WIRE WHT WIRE WHT/YEL WIRE YEL WIRE

1 2 PNK WIRE A/C PUSHBUTTON CONTROL MODULE ABS MIL ASR MIL W/ ASR ASR WARNING INDICATOR BAS INDICATOR BAS/ASR MIL BAS/ESP MIL BLK WIRE BLK/GRN WIRE BLK/RED (OR BLK/GRY) WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE FLUID LEVEL SWITCH BRAKE PAD WEAR INDICATOR BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM ECL SWITCH (ON BOTTOM OF COOLANT RESERVOIR) ECT GAUGE ELECTRONIC CLOCK ELECTRONIC IGNITION- STARTER SWITCH (EIS) CONTROL MODULE ELECTRONIC SPEEDO- METER ESP MIL EXTERIOR LAMP FAILURE INDICATOR EXTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM FUEL LEVEL GAUGE FUEL RESERVE INDICATOR FUSE 19 FUSE 30 FUSE 4 FUSE, RELAY BOX (ON LEFT REAR OF ENGINE COMPARTMENT) GENERATOR CHARGE INDICATOR GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/VIO WIRE HIGH BEAM INDICATOR HOT AT ALL TIMES HOT IN OFF, ACC, RUN OR START HYDRAULIC FLUID LEVEL INDICATOR ILLUMINATION (3 BULBS) INSTRUMENT CLUSTER INSTRUMENT ILLUMINATION (4 BULBS) INSTRUMENT ILLUMINATION RHEOSTAT LEFT FRONT DOOR SWITCH LEFT FRONT SEAT BELT BUCKLE SWITCH (SEAT BELT REMINDER) LEFT FUEL LEVEL SENSOR (ON LEFT SIDE OF FUEL TANK) LEFT TURN SIGNAL INDICATOR LOW BRAKE FLUID LEVEL/ PARKING BRAKE INDICATOR LOW ECL INDICATOR LAMP LOW ENGINE OIL LEVEL INDICATOR LOW WINDSHIELD WASHER FLUID LEVEL INDICATOR NCA WIRE OUTSIDE TEMPERATURE INDICATOR PINS 6, 7 JUMPERED TOGETHER BY PINS 31, 32 PNK 7 6 WIRE PNK WIRE PNK/WHT WIRE PSE CONTROL MODULE RED WIRE RED/YEL WIRE RIGHT FUEL LEVEL SENSOR (ON RIGHT SIDE OF FUEL TANK) RIGHT TURN SIGNAL INDICATOR SEAT BELT REMINDER INDICATOR SOLID STATE SPEED WARNING BUZZER SRS CONTROL MODULE SRS CONTROL MODULE (ON TRANSMISSION TUNNEL, FORWARD OF SHIFTER) SRS MIL, CONTROL STARTING/CHARGING SYSTEM TACHO- METER W/ ESP ESP WARNING INDICATOR WARNING BUZZER WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WINDSHIELD WASHER FLUID LEVEL SWITCH (ON WINDSHIELD WASHER FLUID RESERVOIR) YEL WIRE YEL/BLU WIRE

1 1 ILLUM 11 3 LED (LEFT WHEELHOUSING IN TRUNK) 2 (OR 7) 1 4 9 CAN L CAN H ATA STATUS/TOWING/ INTERIOR PROTECTION SWITCH BLK WIRE BLU WIRE BLU/GRN WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE CAN-L CAN-H COCKPIT SWITCH GROUP COMPUTER DATA LINES SYSTEM CTEL TRANSMITTER/ RECEIVER DRIVER-SIDE FUSE, RELAY MODULE BOX ESP OFF SWITCH EXTERIOR LAMP SWITCH FRONT CIGAR LIGHTER FRONT HEATED SEAT CONTROL MODULE FUSE 17 FUSE 5 FUSE 7 FUSE, RELAY BOX (ON LEFT REAR OF ENGINE COMPT) GRN WIRE GRY WIRE GRY/BLU WIRE GRY/VIO WIRE HAZARD FLASHER SWITCH HEAD LH HOT AT ALL TIMES IN DASH CONTROLLER INSTRUMENT CLUSTER INSTRUMENT ILLUMINATION INSTRUMENT ILLUMINATION RHEOSTAT LEFT FRONT HEATED SEAT SWITCH LEFT LICENSE PLATE LAMP LEFT REAR POWER WINDOW SWITCH LOWER CONTROL FIELD CONTROL MODULE NCA WIRE OFF PARK RH OUTSIDE REARVIEW MIRROR SWITCH (WITH FOLD-IN/OUT FEATURE) PSE CONTROL MODULE PTS ON/OFF SWITCH RADIO REAR DRIVER-SIDE DOOR CONTROL MODULE REAR FUSE BOX (ON RIGHT SIDE OF TRUNK) REAR PASSENGER- SIDE DOOR CONTROL MODULE RED WIRE RED/BLK WIRE RED/GRN WIRE RED/YEL WIRE RIGHT FRONT HEATED SEAT SWITCH RIGHT LICENSE PLATE LAMP RIGHT REAR POWER WINDOW SWITCH SOLID STATE TERMINAL TRANSMISSION RANGE RECOGNITION SWITCH ULTRASONIC PTS CONTROL MODULE VIO WIRE WHT WIRE YEL WIRE

1 2 4 1 LEFT OUTER SENSOR 1 2 4 3 LEFT INNER SENSOR 2 1 34 1 VSS RF 2 1 VSS RF 2 4 1 4 RIGHT INNER SENSOR 2 4 1 5 RIGHT CENTER SENSOR 2 4 1 6 RIGHT OUTER SENSOR 4 2 1 2 LEFT CENTER SENSOR ASR/SPS CONTROL MODULE BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/WHT WIRE DATA LINK CONNECTOR (RIGHT REAR CORNER OF ENGINE COMPT) ESP/BAS CONTROL MODULE F+ F+ F- F- F DATA FRONT BUMPER PTS SENSOR ASSEMBLY FUSE 14 FUSE, RELAY BOX (LEFT SIDE OF ENGINE COMPT) GRN WIRE GRN/BLK WIRE GRY WIRE GRY/BLU WIRE GRY/VIO WIRE GRY/YEL WIRE HOT IN RUN OR START PTS ON/OFF SWITCH PTS WARNING INDICATOR (CENTER INSTRUMENT PANEL AIR OUTLET) PTS WARNING INDICATOR (LEFT INSTRUMENT PANEL AIR OUTLET) RF ERK DIAG TEVES BOSCH TRAILER) TRANSMISSIONS SYSTEM (LOWER CONTROL FIELD CONTROL MODULE) ULTRASONIC PTS CONTROL MODULE VSS RF W/ ELECTRONIC STABILITY W/O ELECTRONIC STABILITY WHT/RED WIRE WHT/YEL WIRE YEL/BLK WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

ACTVATED CHARCOAL CANISTER SHUTOFF VALVE BLK/RED WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE BU LP CAN(H)+ CAN(L)- COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM DATA LINK CONNECTOR (LEFT REAR OF ENGINE COMPT) DIAG DRIVER'S SIDE FUSE, RELAY MODULE BOX ELECTRONIC IGNITION LOCK CONTROL MODULE ENGINE CONTROL MODULE (ME-SFI) (IN MODULE BOX, IN RIGHT REAR OF ENGINE COMPT) ESG 31 31 GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/VIO WIRE GRY/YEL WIRE HOT AT ALL TIMES OXYGEN SENSOR 1 (BEFORE TWC) (ON EXHAUST PIPE) OXYGEN SENSOR 2 (AFTER TWC) (ON EXHAUST PIPE) PASSENGER'S SIDE FUSE, RELAY MODULE BOX FUSE 1 PEDAL VALUE SENSOR (LEFT REAR OF ENGINE COMPT) PURGE CONTROL VALVE (LEFT FRONT CORNER OF ENGINE COMPT) RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE STARTING SYSTEM TNA TN 50 USP 1 USP 2 VIO WIRE VIO/GRN WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE YEL/GRN WIRE

AIR PUMP (LOWER RIGHT FRONT OF ENGINE) AIR PUMP RELAY MODULE BLK/RED WIRE BLU/RED WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/VIO WIRE BRN/YEL WIRE CAMSHAFT HALL EFFECT SENSOR (TOP LEFT FRONT OF ENGINE) CKP SENSOR (LEFT REAR OF ENGINE) CONTROL REGENERATION PRESSURE SENSOR (TOP LEFT FRONT OF ENGINE) DAYTIME RUNNING LAMP CONTROL MODULE (LEFT SIDE OF DASH) FUEL PUMP FUEL PUMP RELAY MODULE FUSE 1 FUSE 4 FUSE 7 GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/VIO WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT AT ALL TIMES TERMINAL BLOCK HOT FILM MAF SENSOR (ON FRESH AIR INTAKE TUBE) HOT IN RUN OR START MAGNETIC SUPERCHARGER CLUTCH PASSENGER'S SIDE FUSE, RELAY MODULE BOX (RIGHT REAR OF ENGINE COMPT) REAR FUSE BOX (RIGHT SIDE OF TRUNK) RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE TRANSMISSION CONTROL MODULE (REAR OF ENG COMPT) YEL/GRN WIRE YEL/GRY WIRE YEL/WHT WIRE