Mercedes-Benz C-class W202 facelift (1997-2001) brn/blu Wiring diagrams

ASR/ETS/ESP HYDRAULIC UNIT BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/RED WIRE BLK/WHT WIRE BLU/WHT WIRE BRAKE BOOSTER (BAS) BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE DRIVER'S SIDE FUSE, RELAY MODULE BOX ESP BRAKE PRESSURE SENSOR ESP/SPS/BAS CONTROL MODULE EXTERIOR LAMP FAILURE MONITORING MODULE (ON LEFT REAR OF ENG COMPT) FUSE 19 FUSE/ RELAY BOX GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/RED WIRE GRY/WHT WIRE HIGH PRESSURE/ RETURN PUMP RELAY MODULE HOT AT ALL TIMES HOT IN RUN OR START LEFT FOOTWELL) NCA WIRE PARKING BRAKE SWITCH PNK WIRE PNK/GRN WIRE PNK/WHT WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE STEERING ANGLE SENSOR STOP LAMP SUPPRESSION RELAY MODULE STOP LAMP SWITCH TERMINAL BLOCK WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/RED WIRE YEL/WHT WIRE

1 2 3 4 4 ATA R TAIL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 R DOME 1 2 3 4 PWR GRND CTRL LOCK 1 2 CAN H CAN L 30 30 LK PWR 4 5 10 11 PWM A PWM B CAN L CAN H ALARM SIREN (W/ AUXILIARY BATTERY) ATA STATUS/TOWING/ INTERIOR PROTECTION SWITCH ATA TOW SENSOR B+ GROUND B+ BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN-H- CAN-L- COMPUTER DATA LINES SYSTEM ELECTRONIC STEERING COLUMN CONTROL MODULE ENGINE HOOD SWITCH (FRONT OF ENGINE COMPT) FUSE 2 FUSE 27 FUSE 4 FUSE 5 FUSE 6 FUSE 7 FUSE/ RELAY BOX (LEFT REAR OF ENGINE COMPT) GRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/RED WIRE HEADLAMPS SYSTEM EXTERIOR LIGHTS SYSTEM HOT AT ALL TIMES L TAIL LED STOP LEFT FOOTWELL) LEFT FRONT DOOR SWITCH LEFT REAR DOOR SWITCH PNEUMATIC SYSTEM EQUIPMENT (PSE) CONTROL MODULE (RIGHT REAR SIDE OF TRUNK) REAR DOME LAMP REAR FUSE BOX (RIGHT SIDE OF TRUNK) RED WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE RF DOOR LR DOOR RR DOOR RIGHT FRONT DOOR SWITCH RIGHT REAR DOOR SWITCH SENS GND SENS IN HOOD SW IN SIREN TERMINAL BLOCK TRUNK LAMP TRUNK LAMP SWITCH TRUNK LF DOOR WHT WIRE WHT/GRN WIRE YEL WIRE YEL/RED WIRE

AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM BLK WIRE BLK/GRN WIRE BLK/PNK WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DEFOGGER SYSTEM DRIVER-SIDE FUSE, RELAY MODULE BOX ENGINE CONTROLS SYSTEM EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM FUSE GRN/BLU WIRE HCS PUMP RELAY HORN RELAY HOT AT ALL TIMES OIL COOLER FAN RELAY RED/WHT WIRE SIGNAL PICK-UP, ACTIVATION MODULE WHT/GRN WIRE WINDSHIELD WASHER RELAY WIPER STAGE 1 RELAY WIPER STAGE 2 RELAY WIPER/WASHER SYSTEM YEL/BLU WIRE YEL/BRN WIRE

2 6 3 1 30 CAN H CAN L 31 COMPUTER DATA LINES SYSTEM BLK WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN-H- CAN-L- CAN-L CAN-H COMPUTER DATA LINES SYSTEM FRONT DRIVER-SIDE DOOR CONTROL MODULE FRONT PASSENGER SIDE DOOR CONTROL MODULE FUSE 2 FUSE 3 FUSE 4 FUSE 6 FUSE 8 FUSE 9 FUSE, RELAY BOX (ON LEFT REAR OF ENGINE COMPT) FUSE 23 GLOVE COMPARTMENT ILLUMINATION WITH SWITCH GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ACC, RUN OR START INSTRUMENT CLUSTER LEFT FRONT DOOR SWITCH LEFT FRONT ENTRANCE/ EXIT LAMP LEFT REAR DOOR SWITCH LEFT SUN VISOR (W/ILLUMINATED VANITY MIRROR) PNK WIRE PNK/GRN WIRE POWER DISTRIBUTION SYSTEM PSE CONTROL MODULE (ON RIGHT SIDE REAR OF TRUNK) REAR DOME LAMP REAR FUSE BOX (ON RIGHT SIDE OF TRUNK) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RIGHT FRONT DOOR SWITCH RIGHT FRONT ENTRANCE/ EXIT LAMP RIGHT REAR DOOR SWITCH RIGHT SUN VISOR (W/ILLUMINATED VANITY MIRROR) ROOF CONTROL UNIT CONTROL MODULE SOLID STATE TRUNK LAMP TRUNK LAMP SWITCH WHT 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 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

1 2 4 CAN L CAN H 1 3 1 B+ GROUND 2 3 4 2 B+ GROUND B+ 2 4 9 14 18 3 IR D GROUND CAN L IR U+ CAN H 6 1 SW IN BLK WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CAN CONNECTOR COCKPIT SWITCH GROUP COMPUTER DATA LINES DRIVER SIDE DOOR CONTROL MODULE FUSE 17 FUSE 2 FUSE 3 FUSE 4 FUSE 8 FUSE/ RELAY BOX (LEFT REAR OF ENGINE COMPT) GRN WIRE GRY WIRE HOT AT ALL TIMES LEFT FRONT DOOR IR RECEIVER LEFT FRONT DOOR LOCK/ UNLOCK SWITCH LEFT FRONT DOOR SWITCH LEFT REAR DOOR SWITCH LF UNLOCK LF LOCK LOCK UNLK NCA WIRE PASSENGER SIDE DOOR CONTROL MODULE PNEUMATIC SYSTEM EQUIPMENT (PSE) CONTROL MODULE (RIGHT REAR SIDE OF TRUNK) REAR FUSE BOX (RIGHT SIDE OF TRUNK) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RF UNLOCK RF LOCK RIGHT FRONT DOOR IR RECEIVER RIGHT FRONT DOOR LOCK/ UNLOCK SWITCH RIGHT FRONT DOOR SWITCH RIGHT REAR DOOR SWITCH SIGNAL PICKUP AND ACTIVATION MODULE TRUNK LID LOCK SWITCH TRUNK RELEASE SWITCH UNLK LOCK WHT WIRE WHT/GRN WIRE YEL WIRE

1 2 3 4 BATTERY 1 8 4 7 9 3 2 SIGNAL BATTERY CAN L BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/VIO WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE CAN H GROUND CAN L CAN H BATTERY GROUND COMPUTER DATA LINES SYSTEM DRIVER'S DOOR CONTROL MODULE FUSE 17 FUSE 3 FUSE 5 FUSE 7 FUSE 8 FUSE, RELAY BOX (LEFT REAR OF ENGINE COMPARTMENT) GRN WIRE GROUND GRY/BLU WIRE HOT AT ALL TIMES LEFT FRONT POWER WINDOW MOTOR LEFT REAR DOOR CONTROL MODULE LEFT REAR POWER WINDOW SWITCH LOWER CONTROL FIELD CONTROL MODULE PASSENGER'S DOOR CONTROL MODULE REAR FUSE BOX (RIGHT SIDE OF TRUNK) RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT POWER WINDOW MOTOR RIGHT REAR DOOR CONTROL MODULE RIGHT REAR POWER WINDOW SWITCH