Mercedes-Benz C-class W204/S204/С204 facelift (2011-2015) (glk-class) Wiring diagrams

12 13 17 18 CAN E L CAN E H CAN B L CAN B H 2 3 1 31 LIN 1 30 30 31 5 CAN B H CAN B L EMD 4 3 2 1 S_GB 30 6 5 4 3 2 1 ASS OFF ASS LED 31 6 5 4 3 2 1 OFF INTERIOR PROTECTION SWITCH ANTI-THEFT ALARM SYSTEM INDICATOR LAMP INSTRUMENT PANEL SWITCH GROUP BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/PNK WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CAN B L CAN B H CAN-B H CAN-B L COMPUTER DATA LINES SYSTEM EMERGENCY CALL SYSTEM CONTROL UNIT (CENTER FRONT OF TRUNK/CARGO AREA) FAN RELAY MODULE FRONT ELECTRICAL PREFUSE BOX (RIGHT REAR OF ENGINE COMPT) FUSE FUSE 17 FUSE 18 GRN WIRE GRN/WHT WIRE GRY/YEL WIRE HORNS SYSTEM HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INFO INFO LED INSTRUMENT CLUSTER INTERIOR LEFT INTERIOR PROTECTION PROTECTION RECEIVER TRANSMITTER INTERIOR PROTECTION, TOW-AWAY PROTECTION CONTROL UNIT (IF EQUIPPED) IRS LED IRS-OFF LEFT ENGINE HOOD CONTACT SWITCH (LEFT FRONT CORNER OF ENGINE COMPT) MULTI-FUNCTION DISPLAY NCA WIRE OFF TOWING SENSOR BUTTON 8 7 6 4 3 2 SOS LED WS LED INFO LED WS INFO SOS REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (RIGHT SIDE OF TRUNK/CARGO AREA) REAR WINDOW GLASS BREAKAGE SENSOR RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRY WIRE RIGHT INTERIOR PROTECTION TRANSMITTER RIGHT REAR WINDOW GLASS BREAKAGE SENSOR SOS SOS LED W/ ECO START/ STOP FUNCTION W/O ECO START/ STOP FUNCTION WHT WIRE WS LED YEL WIRE YEL/RED WIRE YEL/VIO WIRE

21 22 RFL-R RFL-L 31 30 CAN B L CAN B H 6 7 CAN C L CAN C H BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM FRONT ELECTRICAL GRY WIRE GRY/BLU WIRE GRY/YEL WIRE LEFT REAR LAMP BACKUP UNIT LAMP REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (RIGHT SIDE OF TRUNK/ CARGO AREA) RED WIRE RIGHT REAR LAMP BACKUP UNIT LAMP W/O ECO START/STOP FUNCTION W/ ECO START/STOP FUNCTION YEL WIRE

10 9 CAN B L CAN B H 30 31 11 SIG SIG (+) 31 30 CAN B L CAN B H 6 3 2 PNK WIRE BLK/GRY WIRE BLK/VIO WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM FL 31 31 FRONT DOME LAMP SWITCH FRONT SAM CONTROL UNIT FUSE 17 W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 21 GLOVE BOX LAMP) GRN WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/WHT WIRE HOT AT ALL TIMES INTERIOR LAMP AUTOMATIC FUNCTION SWITCH INTERIOR PROTECTION SWITCH LEFT FRONT INTERIOR LAMP LEFT FRONT MIRROR LAMP SWITCH LEFT FRONT READING LAMP SWITCH LEFT REAR LEFT REAR READING LAMP LEFT SUN VISOR MIRROR LAMP PNK 8 9 10 WIRE PNK/YEL WIRE READING SWITCH REAR DOME LAMP REAR DOME LAMP, SWITCH REAR INTERIOR LAMP REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (RIGHT SIDE OF TRUNK/CARGO AREA) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/VIO WIRE RELAY ENERGIZED RIGHT FRONT INTERIOR LAMP RIGHT FRONT MIRROR LAMP SWITCH RIGHT FRONT READING LAMP SWITCH RIGHT REAR READING LAMP RIGHT REAR READING SWITCH RIGHT SUN VISOR MIRROR LAMP W/ AVANTGARDE, ELEGANCE W/ CLASSIC W/O CAN W/ CAN YEL WIRE

1 2 3 4 31 (+) LIN 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 CAN-G H CAN-G L 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 LWR 1 2 3 4 5 6 ANST ANST 15 1 2 3 4 5 LIN 1 30 SIG 31 KHD 31 NTC LIN 2 GND 31 SIG AT 31 31 AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM HEADLIGHTS SYSTEM AIR CONDITIONING SYSTEM WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM BFS CRASH BLK/GRN WIRE BLK/GRY WIRE BLK/PNK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/ORG WIRE BRN/WHT WIRE BRN/YEL WIRE CAN E H CAN E L CAN-G H CAN-G L COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES, INSTRUMENT CLUSTER SYSTEMS CRUISE CONTROL SYSTEM ENGINE CONTROLS SYSTEM DIESEL ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM EXTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEM FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE 152 GND NTC (+) GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/WHT WIRE GRY/YEL WIRE HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED FUSE INSTRUMENT CLUSTER SYSTEM INTERIOR LIGHTS SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM LWR LWR SIG NCA WIRE PNK/GRN WIRE PNK/GRY WIRE PNK/RED WIRE PNK/WHT WIRE PNK/YEL WIRE POWER DISTRIBUTION SYSTEM RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SIG STARTING/CHARGING, ENGINE CONTROLS SYSTEMS TRANSMISSIONS SYSTEM VIO/WHT WIRE W/O ECO START/STOP FUNCTION WHT/RED WIRE WIPER/WASHER SYSTEM YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/WHT WIRE

BATTERY SENSOR BLK WIRE BRN WIRE DC/AC CONVERTER CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT WHT WIRE

1 2 3 CAN-A H CAN-A L 31 1 2 3 CAN-C H CAN-C L 31 1 2 CAN-A H CAN-A L 1 2 CAN-C H CAN-C L 3 2 CAN-C H CAN-C L 3 4 10 9 CAN-C H CAN-C L 3 4 CAN-A H CAN-A L 3.5L EXCEPT 3.5L 4 14 CAN-A H CAN-A L 4 8 CAN-A H CAN-A L 8 2 CAN-A H CAN-A L 8 4 CAN-A H CAN-A L AUDIO/COMAND CONTROL PANEL AUDIO/COMAND DISPLAY BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN/WHT WIRE CAN-G H CAN-G L CAN-G H CAN-G L CAN-G H CAN-G L CRADLE FOR NAVIGATION MODULE DRIVE TRAIN CAN VOLTAGE DISTRIBUTOR ELECTRICAL CONNECTOR DVD PLAYER (W/ TV, VIDEO IN REAR) FUEL PUMP CONTROL MODULE (UNDER RIGHT REAR SEAT) FULLY INTEGRATED TRANSMISSION CONTROL UNIT GRN WIRE GRN/WHT WIRE HEADLAMP CONTROL UNIT LEFT FRONT LAMP UNIT (W/ XENON LAMPS) LEFT REAR DISPLAY (W/ TV, VIDEO IN REAR) LEFT XENON LIGHT CONTROL UNIT RIGHT FRONT LAMP UNIT (W/ XENON LAMPS) RIGHT REAR DISPLAY (W/ TV, VIDEO IN REAR) RIGHT XENON LIGHT CONTROL UNIT TELEMATICS CAN VOLTAGE DISTRIBUTOR ELECTRICAL CONNECTOR WHT WIRE YEL WIRE YEL/WHT WIRE

1 2 CAN-B H CAN-B L 10 11 6 7 14 15 CAN-H H CAN-H L CAN-E H CAN-E L CAN-S H CAN-S L 10 9 CAN-B H CAN-B L 13 12 17 18 CAN-E H CAN-E L CAN-B L CAN-B H 14 15 CAN-B H CAN-B L 18 9 CAN-B H CAN-B L 2 1 CAN-B H CAN-B L 2 3 PNK WIRE 3 2 CAN-E H CAN-E L 3 4 CAN-E H CAN-E L 3 4 PNK WIRE 6 5 CAN-B H CAN-B L 6 7 PNK WIRE 7 4 CAN-B H CAN-B L 7 5 CAN-B H CAN-B L BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN E H CAN E L CAN-E L CAN-E H CAN-S H CAN-S L ELECTRICAL POWER ELECTRO HYDRAULIC POWER STEERING GRN WIRE GRN/WHT WIRE INSTRUMENT CLUSTER LEFT FRONT BUMPER DISTRONIC SENSOR (DTR) MULTI-FUNCTION CAMERA PNK 3 4 WIRE PNK WIRE PNK/WHT WIRE RIGHT FRONT BUMPER DISTRONIC SENSOR (DTR) RIGHT VEHICLE FLOOR INTERIOR CAN VOLTAGE DISTRIBUTOR ELECTRICAL CONNECTOR STEERING COLUMN MODULE CONTROL UNIT (INTEGRAL TO STEERING COLUMN MODULE) STEERING CONTROL UNIT (LOWER FRONT OF ENGINE COMPT) TAILGATE CONTROL UNIT (W/ AUTOMATIC TAILGATE) VEHICLE FLOOR CHASSIS CAN VOLTAGE DISTRIBUTOR ELECTRICAL CONNECTOR VIDEO, RADAR SENSOR SYSTEM CONTROL UNIT (IF EQUIPPED) VIO WIRE VIO/WHT WIRE W/ TIRE PRESSURE MONITOR W/ MULTI-FUNCTION CAMERA W/ VIDEO, RADAR SENSOR SYSTEM CONTROL UNIT W/O MULTI-FUNCTION CAMERA WHT WIRE

1 2 3 4 5 6 IRS OFF IRS LED 11 9 CAN-B H CAN-B L 2 7 8 1 SHIELD MIC 2 GND MIC 1 30 S GB 31 ASS LED ASS OFF 9 10 CAN-B L CAN-B H AMBIENT LAMP AUTOMATIC DIMMING MIRROR BLK WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CENTER INTERIOR ROOF) COMPASS MODULE W/ DISPLAY COMPUTER DATA LINES SYSTEM FORWARD AUTOMATIC DIMMING MIRROR LIGHT SENSOR FUSE 46 GARAGE DOOR OPENER GARAGE DOOR OPENER BUTTON 1 GARAGE DOOR OPENER BUTTON 2 GARAGE DOOR OPENER BUTTON 3 GARAGE DOOR OPENER INDICATOR LAMP GRN WIRE GRY WIRE HANDS-FREE SYSTEM MICROPHONE HOT AT ALL TIMES INSIDE REARVIEW MIRROR LEFT READING LAMP LEFT REAR WINDOW GLASS BREAKAGE SENSOR NCA WIRE ORG/ WIRE PNK 17 18 WIRE PNK WIRE RADIO (W/ AUDIO 20) COMAND CONTROL UNIT (W/O AUDIO 20) REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE REAR WINDOW GLASS BREAKAGE SENSOR REARWARD COMPASS DISPLAY BUTTON AUTOMATIC DIMMING MIRROR LIGHT SENSOR RED WIRE RIGHT READING LAMP RIGHT REAR WINDOW GLASS BREAKAGE SENSOR WHT WIRE YEL WIRE

1 2 CAN-B H CAN-B L 2 HS AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLK WIRE BRN WIRE BRN/RED WIRE CAN B L CAN B H COMPUTER DATA LINES SYSTEM COUPE FUSE HEATED REAR WINDOW RELAY HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (RIGHT SIDE OF TRUNK/CARGO AREA) REAR WINDOW ANTENNA AMPLIFIER 1 (IF EQUIPPED) (CENTER REAR OF ROOF) REAR WINDOW HEATER REAR WINDOW HEATER BUTTON REAR WINDOW INTERFERENCE SUPPRESSION CAPACITOR 1 REAR WINDOW INTERFERENCE SUPPRESSION CAPACITOR 1 (SEDAN) REAR WINDOW INTERFERENCE SUPPRESSION CAPACITOR 2 RED WIRE VIO/WHT WIRE W/O ECO START/ STOP FUNCTION W/ ECO START/ STOP FUNCTION

1 2 3 4 5 6 7 8 9 10 31/1 15 54 31 LED 31/2 AHK BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/RED WIRE CAN-B H CAN-B L COMPUTER DATA LINES SYSTEM FRONT ELECTRICAL PREFUSE BOX (AT RIGHT REAR OF ENGINE COMPT) FUSE FUSE 53 FUSE 54 FUSE 57 FUSE 58 FUSE 89 GRN WIRE GRY WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LED REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE (RIGHT SIDE OF TRUNK/CARGO AREA) RED WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RFL (+) TRAILER HITCH LOCKING SWITCH (W/ SWIVELING TRAILER HITCH) TRAILER HITCH RELEASE (W/ SWIVELING TRAILER HITCH) TRAILER RECOGNITION CONTROL UNIT TRAILER SOCKET W/O ECO START/ STOP FUNCTION W/ ECO START/ STOP FUNCTION WHT WIRE