Mercedes-Benz GLK-class X204 facelift (2012-2015) overhead control panel electronics Wiring diagrams

1.8L TURBO 2.1L TURBO DIESEL 3.5L BLK/BLU WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L CIRCUIT 87 RELAY ENERGIZED COMBUSTION ENGINE, A/C W/ INTEGRATED CONTROL FAN MOTOR COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR ENGINE CONTROLS SYSTEM EXCEPT 2.0L TURBO DIESEL FRESH AIR/ RECIRCULATION FLAP ACTUATOR MOTOR FRONT ELECTRICAL PREFUSE BOX FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE FUSE 12 FUSE 151 FUSE 22 GRN/BLU WIRE GRN/RED WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT W/ ENGINE INTERIOR HUMIDITY/ TEMPERATURE SENSOR INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEUS NCA WIRE NTC- OVERHEAD CONTROL PANEL ELECTRONICS PURGE CONTROL VALVE REAR AIR OUTLET SYMBOL ILLUMINATION RED WIRE RED/BLK WIRE RED/BRN WIRE RED/VIO WIRE RED/WHT WIRE REFRIGERANT COMPRESSOR REFRIGERANT PRESSURE SENSOR REG SOLID STATE TMOT VIO/GRN WIRE VIO/WHT WIRE

1.8L TURBO 3.5L 2.1L TURBO DIESEL EXCEPT 2.1L TURBO DIESEL BLK/BLU WIRE BLK/RED WIRE BLU/BLK WIRE BLU/GRN WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/YEL WIRE COMBUSTION ENGINE, A/C W/ INTEGRATED CONTROL FAN MOTOR COOLANT CIRCULATION PUMP COOLANT TEMPERATURE SENSOR ENGINE CONTROLS SYSTEM FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE FUSE 12 FUSE 22 GRN/BLU WIRE GRN/RED WIRE GRY/BLU WIRE HOT W/ ENGINE CIRCUIT 87 RELAY ENERGIZED INTERIOR HUMIDITY/ TEMPERATURE SENSOR INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT FOOTWELL FLAP ACTUATOR MOTOR LEUS NTC- OVERHEAD CONTROL PANEL ELECTRONICS PURGE CONTROL VALVE REAR BLEND AIR FLAP ACTUATOR MOTOR RED WIRE RED/BLK WIRE RED/BRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE REFRIGERANT COMPRESSOR REFRIGERANT PRESSURE SENSOR REG SIG SOLID STATE TMOT VIO/WHT WIRE WHT/GRN WIRE WHT/VIO WIRE WHT/YEL WIRE

AMBIENT LAMP AUTOMATIC DIMMING MIRROR BLK WIRE BLU WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE CAN B H CAN B L COMPASS DISPLAY BUTTON COMPASS MODULE W/ DISPLAY COMPUTER DATA LINES SYSTEM FORWARD AUTOMATIC DIMMING MIRROR LIGHT SENSOR FRONT ELECTRICAL PREFUSE BOX FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE FUSE 161 156 FUSE 17 FUSE 2 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 GRY/RED WIRE GRY/YEL WIRE HANDSFREE SYSTEM MICROPHONE HOT AT ALL TIMES HOT W/ INSIDE REARVIEW MIRROR LEFT FRONT DOOR CONTROL UNIT LEFT OUTSIDE MIRROR LEFT READING LAMP LIGHT SENSOR (W/O RAIN/LIGHT SENSOR) RAIN/LIGHT SENSOR (W/ RAIN/LIGHT SENSOR) LIN 2 NAVIGATION, SOUND SYSTEMS NCA WIRE ORG/ WIRE OVERHEAD CONTROL PANEL CONTROL UNIT OVERHEAD CONTROL PANEL ELECTRONICS PNK WIRE QUIESCENT CURRENT CUTOUT RELAY ENERGIZED REARWARD AUTOMATIC DIMMING MIRROR LIGHT SENSOR RED/BLU WIRE RED/WHT WIRE RIGHT READING LAMP SIG USED) YEL 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 CAN B H CAN B L COMPUTER DATA LINES SYSTEM FRONT DOME LAMP SWITCH FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE FUSE 17 FUSE 21 GLOVE BOX LAMP) GLOVE BOX LAMP/ SWITCH 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 FOOTWELL LAMP LEFT FRONT INTERIOR LAMP LEFT FRONT MIRROR LAMP SWITCH LEFT FRONT READING LAMP SWITCH LEFT REAR READING LAMP LEFT REAR READING SWITCH LEFT SUN VISOR MIRROR LAMP OVERHEAD CONTROL PANEL CONTROL MODULE OVERHEAD CONTROL PANEL ELECTRONICS PNK WIRE PNK/YEL WIRE REAR DOME LAMP REAR DOME LAMP, SWITCH REAR INTERIOR LAMP REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/VIO WIRE RELAY ENERGIZED RIGHT FRONT FOOTWELL LAMP 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 SIG W/ AVANTGARDE, ELEGANCE W/ CLASSIC W/O CAN W/ CAN YEL WIRE

BACKUP LAMP BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE BSL L BSL R CAN B H CAN B L CAN E H CAN E L CENTER STOP LAMP COMBINATION SWITCH COMPUTER DATA LINES SYSTEM FLASHER/ HIGH BEAM SWITCH FOG LAMP FRONT ELECTRICAL PREFUSE BOX FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE FUSE 13 FUSE 152 FUSE 163 158 GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE GRY/VIO WIRE GRY/YEL WIRE HEADLAMP HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT LICENSE PLATE LAMP LEFT REAR LAMP UNIT LIGHT SENSOR (-) LIN 2 NSL-L NSL-R OVERHEAD CONTROL PANEL ELECTRONICS PNK WIRE PNK/RED WIRE RAIN/LIGHT SENSOR REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE RED WIRE RED/BLU WIRE RFL L RFL R RIGHT LICENSE PLATE LAMP RIGHT REAR LAMP UNIT SIDE MARKER LAMP STEERING COLUMN MODULE CONTROL UNIT STOP/ TAIL/ PARKING LAMP TURN SIGNAL LAMP TURN SIGNAL LAMPS SWITCH VIO WIRE VIO/BLU WIRE W/O ECO START/STOP FUNCTION W/ ECO START/STOP FUNCTION WHT WIRE YEL WIRE

AUTOMATIC TRANSMISSION MODE BUTTON BLK/PNK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN C H CAN C L COMPUTER DATA LINES SYSTEM ELECTRONIC SELECTOR LEVER MODULE CONTROL MODULE EXTERIOR LIGHTS SWITCH FRONT CIGARETTE LIGHTER W/ ASHTRAY ILLUMINATION FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE FRONT VEHICLE INTERIOR POWER OUTLET FUSE 16 FUSE 28 FUSE 5 GRN WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED HOT W/ ENGINE CIRCUIT 87 RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT ILLUMINATION, INSTRUMENT ILLUMINATION BRIGHTNESS CONTROL LWR NCA WIRE OVERHEAD CONTROL PANEL CONTROL UNIT OVERHEAD CONTROL PANEL ELECTRONICS PNK/RED WIRE RED WIRE RED/BLU WIRE RED/YEL WIRE SHIFT GATE SYMBOL ILLUMINATION SWITCH ILLUMINATION W/O SMOKER PACKAGE W/O XENON LAMPS WHT WIRE YEL WIRE

30 RLS ASS LED ASS OFF AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLK WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/PNK WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/WHT WIRE DIESEL EMERGENCY CALL SYSTEM CONTROL UNIT (IF EQUIPPED) (CENTER FRONT TRUNK/CARGO AREA) FRONT DOME LAMP SWITCH FRONT ELECTRICAL PREFUSE BOX FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE FUSE 12 FUSE 152 GASOLINE GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INFO INFO LED INTERIOR LAMP AUTOMATIC FUNCTION SWITCH INTERIOR PROTECTION RECEIVER INTERIOR PROTECTION SWITCH INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN IRS LED IRS-OFF LEFT FRONT INTERIOR LAMP LEFT FRONT READING LAMP SWITCH LEFT INTERIOR PROTECTION TRANSMITTER LIGHT SENSOR (W/O RAIN/LIGHT SENSOR) RAIN/LIGHT SENSOR (W/ RAIN/LIGHT SENSOR) LIN 2 NCA WIRE NTC- OVERHEAD CONTROL PANEL ELECTRONICS PNK WIRE POWER TOPS SYSTEM REAR DOME LAMP, SWITCH RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RIGHT FRONT INTERIOR LAMP RIGHT FRONT READING LAMP SWITCH RIGHT INTERIOR PROTECTION TRANSMITTER SIG SOS SOS LED TOWING SENSOR BUTTON WHT WIRE WS LED YEL WIRE YEL/RED WIRE YEL/VIO WIRE

AMBIENT LAMP ASS LED ASS OFF AUTOMATIC DIMMING MIRROR BLK WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L COMPASS DISPLAY BUTTON 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 INTERIOR PROTECTION, TOW-AWAY PROTECTION CONTROL UNIT IRS LED IRS-OFF LEFT READING LAMP LEFT REAR WINDOW GLASS BREAKAGE SENSOR MIC 1+ MIC 2+ NCA WIRE ORG/ WIRE OVERHEAD CONTROL PANEL ELECTRONICS PNK WIRE RADIO (W/ AUDIO 20) COMMAND CONTROL UNIT (W/O AUDIO 20) REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE REAR WINDOW GLASS BREAKAGE SENSOR REARWARD AUTOMATIC DIMMING MIRROR LIGHT SENSOR RED WIRE RIGHT READING LAMP RIGHT REAR WINDOW GLASS BREAKAGE SENSOR S GB SHIELD WHT WIRE YEL WIRE

30 RLS ANST BLK WIRE BLK/GRY WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE FUSE 17 GRN WIRE GRN/WHT WIRE GRY WIRE HALL HALL SENSOR 1 HALL SENSOR 2 HOT AT ALL TIMES HS 2 HS(+) MOTOR OVERHEAD CONTROL PANEL CONTROL UNIT OVERHEAD CONTROL PANEL ELECTRONICS PANORAMIC SLIDING ROOF CONTROL MODULE PANORAMIC SLIDING ROOF CONTROL UNIT PANORAMIC SLIDING ROOF HALL SENSOR 1 PANORAMIC SLIDING ROOF HALL SENSOR 2 PANORAMIC SLIDING ROOF MOTOR PANORAMIC SLIDING ROOF ROLLER SUN BLIND DRIVE UNIT RED WIRE RED/BLU WIRE RED/WHT WIRE ROOF MOTOR SENSOR 1 SENSOR 2 SIG SUN BLIND MOTOR TILTING/ SLIDING ROOF DRIVE UNIT TILTING/ SLIDING ROOF SWITCH VIO WIRE WHT WIRE YEL WIRE

ANST BLK WIRE BLK/GRY WIRE BLK/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/RED WIRE CAN B H CAN B L CAN E H CAN E L COMBINATION SWITCH COMPUTER DATA LINES SYSTEM ELECTRONIC IGNITION SWITCH CONTROL UNIT FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE FUSE 10 FUSE 13 FUSE 17 FUSE 27 FUSE 38 GRN WIRE GRN/WHT WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ CIRCUIT HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER LIGHT SENSOR (STANDARD) RAIN/LIGHT SENSOR (IF EQUIPPED) LIN 2 NCA WIRE OVERHEAD CONTROL PANEL CONTROL UNIT OVERHEAD CONTROL PANEL ELECTRONICS PNK/GRY WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED WIRE RED/BLU WIRE SIG SPRAY NOZZLE HEATER SPRAY NOZZLE HOSE HEATER STEERING COLUMN MODULE CONTROL UNIT TAILGATE WINDSHIELD WIPER RELAY TAILGATE WIPER MOTOR VIO/YEL WIRE W/O POWER GLASS TILTING /SLIDING SUNROOF WINDSHIELD WASHER SYSTEM FLUID LEVEL SWITCH WINDSHIELD WASHER SYSTEM PUMP WINDSHIELD WASHER SYSTEM SWITCH WIPER MOTOR WIPER PARK HEATER WIPER SWITCH YEL/BLU WIRE