Mercedes-Benz CLS-class C257 (2017-2021) rear sam control unit Wiring diagrams

AAG ARMREST HEATER CONTROL UNIT BLK WIRE BLU/GRY WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FUSE 203 FUSE 302 FUSE 425 GRN WIRE GRN/GRY WIRE HEAT (+) HOT AT ALL TIMES LEFT FRONT CENTER CONSOLE ARMREST HEATING ELEMENT LEFT FRONT DOOR ARMREST HEATING ELEMENT LEFT FRONT DOOR CONTROL UNIT NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE RED/BLU WIRE RED/GRN WIRE RIGHT FRONT CENTER CONSOLE ARMREST HEATING ELEMENT RIGHT FRONT DOOR ARMREST HEATING ELEMENT RIGHT FRONT DOOR CONTROL UNIT SIG TEMP

BLK WIRE BLU WIRE BLU/BRN WIRE BLU/ORG WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FUSE 203 FUSE 214 FUSE 301 FUSE 302 FUSE 417 FUSE 476 GRN/YEL WIRE GRY/BLK WIRE HECKL HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LIN LUGGAGE COMPARTMENT LAMP PASSENGER-SIDE A-PILLAR FUSE BOX PASSENGER-SIDE EXTERIOR AMBIANCE ILLUMINATION REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE RED/BLU WIRE RED/YEL WIRE RIGHT REAR FOOTWELL LAMP SIG SIG (+) HECKD TRUNK LID/ LIFTGATE LOCK TRUNK LID/LIFTGATE EXTERNAL OPERATION SWITCH YEL WIRE YEL/BLU WIRE YEL/RED WIRE

ACCELERATOR PEDAL SENSOR ACTIVE BRAKE ASSIST CONTROLLER UNIT BLK WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN HMI H CAN HMI L CAN PER H CAN PER L COMPUTER DATA LINES SYSTEM DISTRONIC DISTANCE-PILOT CONTROLLER UNIT DRIVETRAIN CONTROL UNIT FLEX-E BP GRN WIRE GRN/WHT WIRE HECKD INSTRUMENT CLUSTER LEFT OUTER REAR BUMPER RADAR SENSOR PNK FLEX-E BM WIRE PNK WIRE RADOME HEATER REAR SAM CONTROL UNIT RED/BLK WIRE RED/BLU WIRE RIGHT OUTER REAR BUMPER RADAR SENSOR SENS 1 (+) SENS 1 SENS 1 GND SENS 2 SENS 2 (+) SENS 2 GND SHORT, LONG-RANGE RADAR SENSOR SIG VIO WIRE VIO/WHT WIRE WHT WIRE WHT/YEL WIRE YEL WIRE

ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L COC COMPUTER DATA LINES SYSTEM CRASH ANALOG DOOR LOCK, TRUNK, TAILGATE, FUEL DOORS SYSTEMS DOOR LOCKS, ANTI-THEFT SYSTEMS DOOR LOCKS, ANTI-THEFT, HORNS SYSTEMS DRIVER-SIDE FUSE, RELAY MODULE ENGINE CONTROLS SYSTEM ENGINE FUSE, RELAY MODULE EXTERIOR LIGHTS, INSTRUMENT CLUSTER SYSTEMS EXTERIOR LIGHTS, INTERIOR LIGHTS SYSTEMS FRONT SAM CONTROL UNIT (LEFT END OF DASH) FUSE 123 FUSE 200 FUSE 201 GRN WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/BRN WIRE HAZARD LIGHT HAZARD SIG HEADLIGHTS, EXTERIOR LIGHTS SYSTEMS HEADLIGHTS, EXTERIOR LIGHTS SYSTEMS EXTERIOR LIGHTS SYSTEMS HEADLIGHTS, INTERIOR LIGHTS, EXTERIOR LIGHTS SYSTEMS HEADLIGHTS, MIRRORS, EXTERIOR LIGHTS, AIR CONDITIONING SYSTEMS HORNS SYSTEM HOT AT ALL TIMES HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED INSTRUMENT CLUSTER SYSTEM INSTRUMENT CLUSTER, AIR CONDITIONING SYSTEMS LIN LIN 1 ORG/ WIRE PNK WIRE POWER DISTRIBUTION SYSTEM REAR SAM CONTROL UNIT RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE REL GND REL O (+) REL O GND SIG SIG (1) SIG (2) SIG 15 SIG 3 STARTING/CHARGING SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM VIO WIRE WARNING, ANTI-LOCK BRAKES SYSTEM WHT/RED WIRE WIPER/WASHER SYSTEM WSR YEL WIRE

BLU WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FRONT SEAT HEATER/SEAT VENTILATION CONTROL UNIT FUSE 203 HEAT (+) HEAT GND HOT AT ALL TIMES LEFT FRONT BACKREST SEAT VENTILATION MOTORS LEFT FRONT DOOR CONTROL UNIT LEFT FRONT SEAT ADJUSTABLE SEAT CUSHION LENGTH HEATER PAD LEFT FRONT SEAT BACKREST HEATER PAD LEFT FRONT SEAT CLIMATE CONTROL SWITCH GROUP LEFT FRONT SEAT CUSHION HEATER PAD LEFT FRONT SEAT CUSHION SEAT VENTILATION MOTORS MOT GND/(+) NCA WIRE REAR SAM CONTROL UNIT RED WIRE RED/BLK WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SIG 31 VIO WIRE W/ SEATING COMFORT PACKAGE

BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/WHT WIRE CENTER REAR SEAT BELT BUCKLE SWITCH CENTER STOP LAMP INNER RIGHT REAR LAMP UNIT LEFT REAR BACKREST LOCK SWITCH LUGGAGE COMPARTMENT LAMP MONO MULTI-FUNCTION CAMERA MULTICONTOUR SEAT PNEUMATIC PUMP NCA WIRE OVERHEAD CONSOLE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS REAR SAM CONTROL UNIT RIGHT REAR BACKREST INCLINATION SWITCH RIGHT REAR BACKREST LOCK SWITCH RIGHT REAR BRAKE WEAR SENSOR RIGHT REAR LAMP UNIT STATIONARY HEATER FUEL PUMP STATIONARY HEATER RADIO REMOTE CONTROL RECEIVER STEREO MULTI-FUNCTION CAMERA TRUNK LID EMERGENCY OPENING SWITCH TRUNK LID/ LIFTGATE AMBIENT LAMP TRUNK LID/ LIFTGATE EXTERNAL OPERATION SWITCH TRUNK LID/ LIFTGATE WARNING LAMP

BLK/BLU WIRE BLK/GRN WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE CAN B L CAN-B H AAG COMPUTER DATA LINES SYSTEM FUSE 476 GRN WIRE HOT AT ALL TIMES LEFT REAR BACKREST INCLINATION SWITCH LEFT REAR BACKREST LOCK SWITCH ORG/ WIRE ORG/BLU WIRE ORG/GRN WIRE REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED/BLK WIRE RIGHT REAR BACKREST INCLINATION SWITCH RIGHT REAR BACKREST LOCK SWITCH SIG SIG (1) SIG (2)

BLU WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN-B H AAG COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FUSE 214 FUSE 301 FUSE 451 HOT AT ALL TIMES LEFT REAR BACKREST HEATER PAD LEFT REAR DOOR CONTROL UNIT LEFT REAR SEAT CLIMATE CONTROL SWITCH GROUP LEFT REAR SEAT SITTING SURFACE HEATED CUSHION NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT REAR SEAT HEATERS CONTROL UNIT RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT REAR BACKREST HEATER PAD RIGHT REAR DOOR CONTROL UNIT RIGHT REAR SEAT CLIMATE CONTROL SWITCH GROUP RIGHT REAR SEAT SITTING SURFACE HEATED CUSHION SIG VIO WIRE

AAG BL/TSI (+) BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE BUL (+) CAN B H CAN B L COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DIAG ENGINE CONTROLS SYSTEM FUSE 476 FUSE 477 GRN/BLU WIRE GRY/BLK WIRE GRY/YEL WIRE HECKR HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED MOT- ORG/ WIRE PNK/BLK WIRE PNK/RED WIRE POWER DISTRIBUTION SYSTEM REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE REF (+) HECKL SIG TL/PL (+) TL/PL/BL/TSI (+) TRUNK, TAILGATE, FUEL DOORS SYSTEM TSI (+) VIO/WHT WIRE YEL WIRE YEL/WHT WIRE

ANTI-LOCK BRAKES SYSTEM ANTI-LOCK BRAKES, CRUISE CONTROL SYSTEMS BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/ORG WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM FRONT SAM CONTROL MODULE CIRCUIT GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/RED WIRE ILL INTERIOR LIGHTS, TRUNK, TAILGATE, FUEL DOORS SYSTEM INTERIOR LIGHTS, TRUNK, TAILGATE, FUEL DOORS SYSTEMS MOT GND/(+) MOT- NAVIGATION SYSTEM NAVIGATION, CRUISE CONTROL SYSTEMS ORG/ WIRE ORG/BLU WIRE ORG/GRN WIRE PNK WIRE PNK/GRN WIRE POWER DISTRIBUTION SYSTEM POWER WINDOWS SYSTEM REAR SAM CONTROL UNIT REAR SAM CONTROL UNIT (RIGHT REAR OF LUGGAGE COMPT) RED WIRE RED/BLU WIRE SEATS SYSTEM SEATS SYSTEM COMPUTER DATA LINES SYSTEM SENS SENS GND SIG SIG (1) SIG (2) SIG 2 HECKD SUPPLEMENTAL RESTRAINTS SYSTEM TL (+) TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO/BLU WIRE VIO/WHT WIRE WHT WIRE YEL WIRE