Mercedes-Benz CLS-class C257 (2017-2021) sig gnd Wiring diagrams

BLK WIRE BLK/VIO WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DCS DCS GND DRIVER-SIDE FUSE, RELAY MODULE FUSE 203 GRN WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES LEFT FRONT DOOR AMBIANCE ILLUMINATION LEFT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH LEFT FRONT DOOR CONTROL UNIT (IN LEFT FRONT DOOR) LEFT FRONT DOOR EXIT LAMP LEFT FRONT DOOR EXTERIOR DOOR HANDLE ILLUMINATION LEFT FRONT DOOR HANDLE AMBIANCE ILLUMINATION LEFT FRONT DOOR LOCK LEFT FRONT DOOR POWER CLOSING ACTUATOR MOTOR LEFT FRONT DOOR STOWAGE COMPARTMENT ILLUMINATION LEFT FRONT DOOR WARNING LAMP LOCK MOT GND/(+) MOT- PNK/BLU WIRE PNK/VIO WIRE PNK/WHT WIRE PRE-LOCKING POSITION MICROSWITCH RED WIRE RIGHT FRONT DOOR EXIT LAMP RIGHT FRONT DOOR WARNING LAMP SIG SIG (+) UNLOCK SIG GND W/ INCREASED THEFT PROTECTION W/ POWER CLOSING W/O POWER CLOSING W/ PREMIUM AMBIENT LIGHTING WHT/VIO WIRE YEL WIRE YEL/GRY WIRE

BLK WIRE BLK/VIO WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DCS FRONT SAM CONTROL UNIT FUSE 302 FUSE 424 FUSE 6 GRN WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES LEFT FANFARE HORN LEFT REAR DOOR WARNING LAMP LOCK MOT GND/(+) MOT GND/(+) DCS GND MULTIPLE FUSE 3 ORG/GRN WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PNK/BLU WIRE PNK/VIO WIRE PNK/WHT WIRE PRE-LOCKING POSITION MICROSWITCH REAR FUSE, RELAY MODULE RED WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RIGHT FRONT DOOR AMBIANCE ILLUMINATION RIGHT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT DOOR EXTERIOR DOOR HANDLE ILLUMINATION RIGHT FRONT DOOR HANDLE AMBIANCE ILLUMINATION RIGHT FRONT DOOR LOCK RIGHT FRONT DOOR POWER CLOSING ACTUATOR MOTOR RIGHT FRONT DOOR STOWAGE COMPARTMENT ILLUMINATION SIG SIG GND THEFT DETECTION SYSTEM ELECTRICAL CONNECTOR THEFT DETECTION SYSTEM HORN RELAY UNLOCK W/ INCREASED THEFT PROTECTION W/ POWER CLOSING W/O POWER CLOSING W/ PREMIUM AMBIENT LIGHTING WHT/VIO WIRE YEL WIRE YEL/GRY WIRE

BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DCS DRIVER SIDE ENGINE HOOD CONTACT SWITCH DRIVER-SIDE FUSE, RELAY MODULE FRONT SAM CONTROL UNIT (LEFT END OF DASH) FUSE 200 FUSE 301 GRN WIRE GRY WIRE HOT AT ALL TIMES LOCK MOT GND/(+) MOT GND/(+) DCS GND ORG/ WIRE ORG/GRN WIRE PASSENGER SIDE ENGINE HOOD CONTACT SWITCH PASSENGER-SIDE A-PILLAR FUSE BOX PNK/BLU WIRE PRE-LOCKING POSITION MICROSWITCH RED WIRE RED/YEL WIRE RIGHT REAR DOOR AMBIANCE ILLUMINATION RIGHT REAR DOOR CONTROL UNIT (IN RIGHT REAR DOOR) RIGHT REAR DOOR EXIT LAMP RIGHT REAR DOOR EXTERIOR DOOR HANDLE ILLUMINATION RIGHT REAR DOOR HANDLE AMBIANCE ILLUMINATION RIGHT REAR DOOR LOCK RIGHT REAR DOOR POWER CLOSING ACTUATOR MOTOR RIGHT REAR DOOR STOWAGE COMPARTMENT ILLUMINATION SIG SIG (+) CAN-B L SIG GND UNLOCK W/ INCREASED THEFT PROTECTION W/ POWER CLOSING W/O POWER CLOSING W/ PREMIUM AMBIENT LIGHTING WHT/VIO WIRE YEL WIRE

AIR QUALITY SENSOR BLU WIRE BLU/GRN WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/VIO WIRE COOLANT CIRCULATION PUMP DEFROSTER/ FOOTWELL/ CENTER AIR VENT FLAP ACTUATOR MOTOR DRIVER SIDE AIR VENT IONIZER ELECTRIC REFRIGERANT COMPRESSOR FRESH AIR/ RAM AIR/AIR RECALCULATION FLAP ACTUATOR MOTOR FUSE 855 GLOVE BOX LAMP) GLOVE BOX LAMP/ SWITCH GRN/VIO WIRE GRY/RED WIRE HOT AT ALL TIMES LEFT BLENDING AIR FLAP ACTUATOR LEFT FOOTWELL VENT/CENTER AIR VENT/ SIDE AIR VENT, REAR VENT FLAP ACTUATOR MOTOR LEFT SIDE AIR OUTLET TEMPERATURE SENSOR NCA WIRE PARTITION WALL BUSBAR PERFUME ATOMIZER GENERATOR (W/ AIR QUALITY PACKAGE) (IN GLOVE COMPT) PNK WIRE REAR AIR CONDITIONING OPERATING UNIT REAR BLEND AIR FLAP ACTUATOR MOTOR RED WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT BLENDING AIR FLAP ACTUATOR RIGHT END OF DASH) RIGHT FOOTWELL VENT/ CENTER AIR VENT, SIDE AIR VENT FLAP ACTUATOR MOTOR RIGHT SIDE AIR OUTLET TEMPERATURE SENSOR SIG GND STATIONARY HEATER RADIO REMOTE CONTROL RECEIVER W/ AIR QUALITY PACKAGE WHT/BLU WIRE YEL WIRE YEL/VIO WIRE

BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L CAN PER H CAN PER L CLIMATE CONTROL OPERATING UNIT COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR DRIVER-SIDE FUSE, RELAY MODULE DRIVETRAIN CONTROL UNIT ELECTRIC COOLANT PUMP (BOTTOM RIGHT FRONT OF ENGINE) ENGINE COMPARTMENT PREFUSE BOX ENGINE FUSE, RELAY MODULE FAN MOTOR (BEHIND RADIATOR) FRONT SAM CONTROL UNIT FUSE 117 FUSE 119 FUSE 209 FUSE 305 FUSE 311 FUSE 7 GND TMOT GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ CPC RELAY ENERGIZED LIN ME-SFI (ME) CONTROL UNIT (LEFT TOP OF ENGINE) NCA WIRE OUTSIDE TEMPERATURE SENSOR OVERHEAD CONSOLE PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE RAIN/LIGHT SENSOR RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE REFRIGERANT COMPRESSOR REFRIGERANT COMPRESSOR W/ MAGNETIC CLUTCH REFRIGERANT PRESSURE SENSOR (AT BOTTOM LEFT SIDE OF RADIATOR) SIG SIG GND W/ REFRIGERANT COMPRESSOR MAGNETIC CLUTCH W/O REFRIGERANT COMPRESSOR MAGNETIC CLUTCH YEL WIRE YEL/BLK WIRE

BLK WIRE BLK/VIO WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DCS DCS GND DRIVER-SIDE FUSE, RELAY MODULE FUSE 203 GRN WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES LEFT FRONT DOOR AMBIANCE ILLUMINATION LEFT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH LEFT FRONT DOOR CONTROL UNIT (IN LEFT FRONT DOOR) LEFT FRONT DOOR EXIT LAMP LEFT FRONT DOOR EXTERIOR DOOR HANDLE ILLUMINATION LEFT FRONT DOOR HANDLE AMBIANCE ILLUMINATION LEFT FRONT DOOR LOCK LEFT FRONT DOOR POWER CLOSING ACTUATOR MOTOR LEFT FRONT DOOR STOWAGE COMPARTMENT ILLUMINATION LEFT FRONT DOOR WARNING LAMP LOCK MOT GND/(+) MOT- PNK/BLU WIRE PNK/VIO WIRE PNK/WHT WIRE PRE-LOCKING POSITION MICROSWITCH RED WIRE RIGHT FRONT DOOR EXIT LAMP RIGHT FRONT DOOR WARNING LAMP SIG SIG (+) UNLOCK SIG GND W/ INCREASED THEFT PROTECTION W/ POWER CLOSING W/O POWER CLOSING W/ PREMIUM AMBIENT LIGHTING WHT/VIO WIRE YEL WIRE YEL/GRY WIRE

BLK WIRE BLK/VIO WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DCS FRONT SAM CONTROL UNIT FUSE 302 FUSE 424 FUSE 6 GRN WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES LEFT FANFARE HORN LEFT REAR DOOR WARNING LAMP LOCK MOT GND/(+) MOT GND/(+) DCS GND MULTIPLE FUSE 3 ORG/GRN WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PNK/BLU WIRE PNK/VIO WIRE PNK/WHT WIRE PRE-LOCKING POSITION MICROSWITCH REAR FUSE, RELAY MODULE RED WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RIGHT FRONT DOOR AMBIANCE ILLUMINATION RIGHT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT DOOR EXTERIOR DOOR HANDLE ILLUMINATION RIGHT FRONT DOOR HANDLE AMBIANCE ILLUMINATION RIGHT FRONT DOOR LOCK RIGHT FRONT DOOR POWER CLOSING ACTUATOR MOTOR RIGHT FRONT DOOR STOWAGE COMPARTMENT ILLUMINATION SIG SIG GND THEFT DETECTION SYSTEM ELECTRICAL CONNECTOR THEFT DETECTION SYSTEM HORN RELAY UNLOCK W/ INCREASED THEFT PROTECTION W/ POWER CLOSING W/O POWER CLOSING W/ PREMIUM AMBIENT LIGHTING WHT/VIO WIRE YEL WIRE YEL/GRY WIRE

BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DCS DRIVER SIDE ENGINE HOOD CONTACT SWITCH DRIVER-SIDE FUSE, RELAY MODULE FRONT SAM CONTROL UNIT (LEFT END OF DASH) FUSE 200 FUSE 301 GRN WIRE GRY WIRE HOT AT ALL TIMES LOCK MOT GND/(+) MOT GND/(+) DCS GND ORG/ WIRE ORG/GRN WIRE PASSENGER SIDE ENGINE HOOD CONTACT SWITCH PASSENGER-SIDE A-PILLAR FUSE BOX PNK/BLU WIRE PRE-LOCKING POSITION MICROSWITCH RED WIRE RED/YEL WIRE RIGHT REAR DOOR AMBIANCE ILLUMINATION RIGHT REAR DOOR CONTROL UNIT (IN RIGHT REAR DOOR) RIGHT REAR DOOR EXIT LAMP RIGHT REAR DOOR EXTERIOR DOOR HANDLE ILLUMINATION RIGHT REAR DOOR HANDLE AMBIANCE ILLUMINATION RIGHT REAR DOOR LOCK RIGHT REAR DOOR POWER CLOSING ACTUATOR MOTOR RIGHT REAR DOOR STOWAGE COMPARTMENT ILLUMINATION SIG SIG (+) CAN-B L SIG GND UNLOCK W/ INCREASED THEFT PROTECTION W/ POWER CLOSING W/O POWER CLOSING W/ PREMIUM AMBIENT LIGHTING WHT/VIO WIRE YEL WIRE

BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L CLIMATE CONTROL UNIT COMPUTER DATA LINES SYSTEM COOLANT CIRCULATION PUMP COOLANT LEVEL SWITCH COOLANT TEMPERATURE SENSOR DRIVER-SIDE FUSE, RELAY MODULE ELECTRIC COOLANT PUMP (BOTTOM RIGHT FRONT OF ENGINE) ENGINE COMPARTMENT PREFUSE BOX ENGINE FUSE, RELAY MODULE FAN MOTOR (BEHIND RADIATOR) FRONT SAM CONTROL UNIT FUSE 119 FUSE 210 FUSE 311 FUSE 7 GRN/BLK WIRE HOT AT ALL TIMES HOT W/ CPC RELAY ENERGIZED ME-SFI (ME) CONTROL UNIT PASSENGER-SIDE A-PILLAR FUSE BOX RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE SIG SIG GND WHT/BLU WIRE YEL/BLK WIRE

BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/YEL WIRE BLU/YEL WIRE BRN WIRE BRN/YEL WIRE CAN H H CAN H L COMPUTER DATA LINES SYSTEM CRASH DRIVER BELT FORCE LIMITER DRIVER ETR (GUS) SQUIB DRIVER SEAT SIDE PRE-SAFE PULSE SQUIB FRONT PASSENGER BELT FORCE LIMITER FRONT PASSENGER SEAT SIDE PRE-SAFE PULSE SQUIB FRONT PASSENGER SIDE BAG SQUIB GRN WIRE GRY WIRE GRY/YEL WIRE LEFT SIDE BAG SENSOR ME-SFI (ME) CONTROL UNIT NCA WIRE PNK/BLK WIRE RED/YEL WIRE RIGHT ACTIVE ENGINE HOOD SQUIB SIG SIG GND SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT VIO WIRE VIO/WHT WIRE VIO/YEL WIRE