Mercedes-Benz GLK-class X204 facelift (2012-2015) engine controls system 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

1.8L TURBO 3.5L 2.1L TURBO DIESEL BLK/BLU WIRE BLK/RED WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L COMBUSTION ENGINE, A/C W/ INTEGRATED CONTROL FAN MOTOR COMPUTER DATA LINES SYSTEM COOLANT CIRCULATION PUMP COOLANT TEMPERATURE SENSOR ENGINE CONTROLS SYSTEM FRONT ELECTRICAL PREFUSE BOX FRONT SAM CONTROL MODULE UNIT W/ FUSE, RELAY MODULE FUSE 151 FUSE 22 GRN/BLU WIRE GRN/RED WIRE HOT AT ALL TIMES HOT W/ ENGINE CIRCUIT 87 RELAY ENERGIZED KHD LUES MRI PURGE CONTROL VALVE RED WIRE RED/BLK WIRE RED/YEL WIRE REFRIGERANT PRESSURE SENSOR REG SIG SOLID STATE TMOT VIO/WHT WIRE WHT WIRE

-1 +2 1.8L TURBO 3.5L 2.1L TURBO DIESEL EXCEPT 2.1L TURBO DIESEL ACCEL/ DECEL/ SET SET ACCELERATOR PEDAL SENSOR BLK WIRE BLU WIRE BLU/BRN WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE BRN/YEL WIRE CAN C H CAN C L CAN E H CAN E L COMPUTER DATA LINES SYSTEM CRUISE CONTROL LEVER DCM DCP DEC DISTRONIC CONTROL (IF EQUIPPED) DISTRONIC WARNING LAMP ENGINE CONTROLS SYSTEM FULLY INTEGRATED TRANSMISSION CONTROL CONTROL UNIT GRN WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE IND INSTRUMENT CLUSTER IPM OFF OUTPUT SHAFT RPM SENSOR PNK SIG WIRE PNK WIRE RED/BLU WIRE RES+ RESUME SIG STEERING COLUMN MODULE CONTROL UNIT THROTTLE VALVE ACTUATOR THROTTLE VALVE ACTUATOR (EXCEPT 2.1L TURBO DIESEL) VIO WIRE VIO/GRN WIRE VIO/YEL WIRE WHT WIRE WHT/BRN WIRE YEL WIRE

AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM POWER DISTRIBUTION SYSTEM AIR CONDITIONING, ENGINE CONTROLS SYSTEMS ANST ANTI-THEFT SYSTEM BFS 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 CRASH CRUISE CONTROL SYSTEM DIESEL ELECTRONIC POWER STEERING SYSTEM ENGINE CONTROLS SYSTEM FRONT ELECTRICAL PREFUSE BOX FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE FUSE 152 FUSE 154 153 FUSE 156 161 GASOLINE GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/WHT WIRE GRY/YEL WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER SYSTEM INSTRUMENT CLUSTER, POWER TOPS SYSTEMS INSTRUMENT CLUSTER, POWER TOPS SYSTEMS INSTRUMENT CLUSTER SYSTEM KHD LIN 1 LIN 2 LWR NCA WIRE NTC- PNK/GRN WIRE PNK/GRY WIRE PNK/RED WIRE PNK/WHT WIRE PNK/YEL WIRE POWER DISTRIBUTION SYSTEM POWER WINDOWS, INSTRUMENT CLUSTER SYSTEMS RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SIG SOUND, NAVIGATION SYSTEMS STARTING/CHARGING SYSTEM STARTING/CHARGING, ENGINE CONTROLS SYSTEMS SUPPLEMENTAL RESTRAINTS SYSTEM 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

AIR CONDITIONING SYSTEM AIR CONDITIONING, COOLING FANS SYSTEMS ANTI-LOCK BRAKES SYSTEM BBV HL BBV HR BLK/BLU WIRE BLK/GRY WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN C H CAN C L CAN E H CAN E L CAN-D H CAN-D L CAN-G H CAN-G L COMPUTER DATA LINES SYSTEM CRASH CRUISE CONTROL, ELECTRONIC POWER STEERING SYSTEMS DIESEL DOOR LOCKS SYSTEM DOOR LOCKS, MIRROR SYSTEMS EKP ENGINE CONTROLS SYSTEM FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE GASOLINE GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/PNK WIRE GRY/WHT WIRE GRY/YEL WIRE HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM HORNS SYSTEM HORNS SYSTEM INSTRUMENT CLUSTER SYSTEM NAVIGATION SYSTEM PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PNK/GRN WIRE PNK/RED WIRE PNK/WHT WIRE POWER DISTRIBUTION SYSTEM POWER DISTRIBUTION, ENGINE CONTROLS SYSTEMS RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SIG SOUND SYSTEMS SOUND, NAVIGATION SYSTEMS STARTING/CHARGING SYSTEM STR+ SUPPLEMENTAL RESTRAINTS SYSTEM TRANSMISSIONS SYSTEM VIO WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE WIPER/WASHER SYSTEM YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/RED WIRE

AIR CONDITIONING SYSTEM ANST ANTI-LOCK BRAKES SYSTEM ANTI-THEFT SYSTEM BLA BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/RED WIRE BRN/YEL WIRE BSL L BSL R CAN B H CAN B L COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DOOR LOCKS SYSTEM EMD ENGINE CONTROLS SYSTEM FRONT ELECTRICAL PREFUSE BOX FUSE 163 158 FUSE 164 GRN WIRE GRN/BLU WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/PNK WIRE GRY/VIO WIRE GRY/YEL WIRE GSS HL GSS HM GSS HR HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM HFE HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER SYSTEM INSTRUMENT CLUSTER, ANTI-THEFT SYSTEMS LIN NSL-L NSL-R PNK WIRE PNK/RED WIRE POWER DISTRIBUTION SYSTEM REAR SAM CONTROL UNIT W/ FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RFL L RFL R RSS AUS RSS EIN SEATS SYSTEM SIG SL L SOUND SYSTEMS SUPPLEMENTAL RESTRAINTS SYSTEM TG L TG R TRUNK, TAILGATE, FUEL DOORS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM STARTING/CHARGING SYSTEM VIO/BLU WIRE VIO/WHT WIRE W/O ECO START/STOP FUNCTION WHT/BLU WIRE WHT/YEL WIRE WIPER/WASHER SYSTEM YEL WIRE ZV ANT