Mercedes-Benz R-class W251 facelift (2007-2010) front sam control unit (under right front seat) Wiring diagrams

ABS IND. BLK WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BRAKE FLUID, PARKING BRAKE WARNING IND BRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B L CAN B H COCKPIT COMPUTER DATA LINES SYSTEM ESP BRAKE PRESSURE SENSOR (ON BRAKE MASTER CYLINDER) ESP WARNING LAMP IND FRONT SAM CONTROL UNIT (UNDER RIGHT FRONT SEAT) GRN/BLK WIRE HOT AT ALL TIMES FUSE 11 FUSE BOX (BEHIND RIGHT END OF DASH) INSTRUMENT CLUSTER LEFT FRONT WHEEL SPEED SENSOR LEFT REAR WHEEL SPEED SENSOR NCA WIRE PARKING BRAKE INDICATOR SWITCH (ABOVE PARKING BRAKE) REAR SAM CONTROL MODULE (RIGHT REAR OF CARGO AREA) RED/BLK WIRE RED/WHT WIRE RIGHT FRONT BRAKE PAD CONTACT SENSOR (ON RIGHT FRONT BRAKE ASSEMBLY) RIGHT FRONT WHEEL SPEED SENSOR RIGHT REAR BRAKE PAD CONTACT SENSOR (ON RIGHT REAR BRAKE ASSEMBLY) RIGHT REAR WHEEL SPEED SENSOR VIO/WHT WIRE VOLTAGE DISTRIBUTOR CONNECTOR WHT WIRE WHT/BLK WIRE YEL/WHT WIRE

11 10 CAN-C L CAN-C H 36 35 CAN-B H CAN-B L BATTERY BLK/BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CIRCUIT 31 RIGHT REAR SEAT VOLTAGE DISTRIBUTOR CONNECTOR COMBINATION SWITCH COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY BOX (RIGHT SIDE OF ENGINE COMPT) FRONT SAM CONTROL UNIT (UNDER RIGHT FRONT SEAT) FUSE FUSE COMPARTMENT PREFUSE BOX (UNDER RIGHT FRONT SEAT) GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE HEADLAMP FLASHER/ HIGH BEAM SWITCH HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED LEFT DYNAMIC CORNERING LAMP MOTOR LEFT FRONT HEADLAMP UNIT LEFT FRONT SIDE MARKER LAMP LEFT RIGHT TURN LEFT STANDING, PARKING LAMP LEFT TURN SIGNAL LAMP PNK/BLK WIRE PNK/WHT WIRE RED WIRE RIGHT DYNAMIC CORNERING LAMP MOTOR RIGHT FRONT HEADLAMP UNIT RIGHT FRONT SIDE MARKER LAMP RIGHT STANDING, PARKING LAMP RIGHT STOP LAMP, TAILLAMP, PARKING LAMP, SIDE MARKER LAMP RIGHT TAILLAMP RIGHT TRUNK LAMP RIGHT TURN SIGNAL LAMP SIGNAL, SWITCH STEERING COLUMN MODULE (TOP OF STEERING COLUMN) VIO/BLK WIRE VIO/WHT WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 CAN-C H CAN-C L 10 11 CAN-C H CAN-C L 17 18 CAN B L CAN B H 17 27 CAN-B H CAN-B L COMPUTER DATA LINES SYSTEM 5 6 7 30 31 LIN BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/RED WIRE BUS SIG CIRCUIT 31 RIGHT FOOTWELL VOLTAGE DISTRIBUTOR CONNECTOR CIRCUIT 31 RIGHT REAR SEAT VOLTAGE DISTRIBUTOR CONNECTOR COMBINATION SWITCH COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY BOX (RIGHT SIDE OF ENGINE COMPT) EXCEPT 5.0L 36 35 CAN-B H CAN-B L COMPUTER DATA LINES SYSTEM EXTERIOR LAMP SWITCH FRONT SAM CONTROL UNIT (UNDER RIGHT FRONT SEAT) FUSE 112 FUSE 55 FUSE 54 GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/WHT WIRE HEADLAMP FLASHER/ HIGH BEAM SW HEADLAMP RANGE ADJUSTMENT CONTROL MODULE (IN RIGHT FRONT FOOTWELL) HIGH BEAM INDICATOR HOT W/ CIRCUIT 15 RELAY ENERGIZED HRA POWER MODULE (W/ XENON) INSTRUMENT CLUSTER LEFT FOG LAMP LEFT FRONT HEADLAMP UNIT LEFT HEADLAMP RANGE ADJUSTMENT MOTOR LEFT HIGH BEAM LEFT LOW BEAM LEFT HIGH BEAM SOLENOID LEFT TAILLAMP LIN LOAD COMPARTMENT FUSE, RELAY BOX (RIGHT REAR OF CARGO AREA) LOW BEAM SW ORG/ WIRE PNK/BLK WIRE REAR FOG LAMP RED/BLU WIRE RIGHT FOG LAMP RIGHT FRONT HEADLAMP UNIT RIGHT HEADLAMP RANGE ADJUSTMENT MOTOR RIGHT HIGH BEAM SOLENOID RIGHT HIGH BEAM RIGHT TAILLAMP STEERING COLUMN MODULE (TOP OF STEERING COLUMN) UPPER CONTROL PANEL CONTROL MODULE VIO WIRE VIO/BLK WIRE W/ XENON XENON W/O W/O XENON XENON WHT/BLU WIRE XENON HEADLAMP IGNITION MODULE (W/ XENON) XENON HEADLAMP SUPPLY MODULE (W/ XENON) XENON RIGHT LOW BEAM HEADLAMP IGNITION MODULE (W/ XENON) YEL/BLK WIRE

1 2 CAN-B H CAN-B L 17 18 CAN-B H CAN-B L 17 27 16 26 CAN-B H CAN-B L CAN-B H CAN-B L 2 1 CAN-B H CAN-B L 25 9 CAN-B H CAN-B L 3 4 CAN B H CAN B L 36 35 CAN-B H CAN-B L 4 3 CAN-B H CAN-B L 5 3 CAN-B H CAN-B L 7 5 CAN-B H CAN-B L AAC PUSHBUTTON CONTROL MODULE BRN WIRE BRN/RED WIRE COCKPIT VOLTAGE DISTRIBUTOR (CAN) CONNECTOR COMFORT AAC PUSHBUTTON CONTROL MODULE ELECTRONIC COMPASS (IF EQUIPPED) (BEHIND INSTRUMENT CLUSTER) FRONT SAM CONTROL UNIT (UNDER RIGHT FRONT SEAT) KEYLESS GO CONTROL MODULE (IF EQUIPPED) (RIGHT SIDE OF CARGO AREA) RCP (HBF) CONTROL MODULE REAR SAM CONTROL MODULE (RIGHT REAR OF CARGO AREA) RIGHT FRONT DOOR CONTROL MODULE (IN FRONT OF RIGHT FRONT DOOR) RIGHT VOLTAGE DISTRIBUTOR (CAN) CONNECTOR UPPER CONTROL PANEL CONTROL MODULE W/ AAC (KLA) W/ COMFORT AAC (K-KLA) WSS CONTROL UNIT (WEIGHT SENSING SYSTEM) (ON RIGHT FRONT SEAT FRAME)

17 18 CAN B L CAN B H 30 31 LIN 35 36 CAN-B L CAN-B H BLK WIRE BLK/BLU WIRE BLU WIRE BRIGHT INSTRUMENT, SEARCH ILLUMINATION PUSH BUTTON BRIGHTNESS SENSOR BRN WIRE BRN/RED WIRE CIRCUIT 31 RIGHT REAR SEAT VOLTAGE DISTRIBUTOR CONNECTOR COMPUTER DATA LINES SYSTEM CUP HOLDER 1 ILLUM CUP HOLDER 2 ILLUM CUP HOLDER ILLUMINATION CUP HOLDER ILLUMINATION (W/ INTERIOR PACKAGE) DARK INSTRUMENT, SEARCH ILLUMINATION PUSH BUTTON DISTRIBUTOR CONNECTOR EXTERIOR LAMP SWITCH FRONT ARMREST FOLDING COMPARTMENT ILLUMINATION (W/ INTERIOR PACKAGE) FRONT CENTER CONSOLE CUP HOLDER ILLUMINATION (W/ INTERIOR PACKAGE) FRONT CIGAR LIGHTER W/ ASHTRAY ILLUMINATION FRONT SAM CONTROL UNIT (UNDER RIGHT FRONT SEAT) FUSE (RIGHT REAR OF CARGO AREA) FUSE 60 GLOVE COMPARTMENT ILLUMINATION (W/ SWITCH) GRN/BLK WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HOT W/ CIRCUIT INSTRUMENT CLUSTER INSTRUMENT ILLUMINATION LEFT AIR OUTLET ILLUMINATION LEFT CENTER AIR OUTLET ILLUMINATION LIN LOAD COMPARTMENT FUSE, RELAY BOX PNK/BLK WIRE REAR CENTER CONSOLE ILLUMINATION REAR CENTER CONSOLE ILLUMINATION 2 RED WIRE RED/BLU WIRE RIGHT AIR OUTLET ILLUMINATION RIGHT CENTER AIR OUTLET ILLUMINATION UPPER CONTROL PANEL MODULE WAKE-UP SIGNAL/CIRCUIT

12 13 CAN-C L CAN-C H 13 14 31 BBV HR BBV VR 17 18 1 25 16 CAN-C L CAN-C H 30 SK 31 26 16 CAN-B-L CAN-B-H 27 33 40 TG+R TG- TG+L AIR BAG INDICATOR BATTERY COMPARTMENT BLK WIRE BLU/BLK WIRE BRAKE FLUID INDICATOR SWITCH (IN BRAKE FLUID RESERVOIR) BRAKE FLUID, PARKING BRAKE WARNING LAMP BRN WIRE BRN/BLK WIRE BRN/RED WIRE CAN B L CAN B H CIRCUIT 31 LEFT FOOT WELL VOLTAGE DISTRIBUTOR CONNECTOR CIRCUIT 31 RIGHT REAR SEAT VOLTAGE DISTRIBUTOR CONNECTOR COMPUTER DATA LINES SYSTEM DRIVER SEAT BELT BUCKLE, SEAT BELT WARNING SWITCH (IN DRIVER'S SEAT BELT BUCKLE) FRONT SAM CONTROL UNIT (UNDER RIGHT FRONT SEAT) FUEL RESERVE INDICATOR LAMP FUSE 79 FUSE 84 FUSE 89 PREFUSE BOX (UNDER RIGHT FRONT SEAT) GRN WIRE GRN/BLK WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT AT ALL TIMES COCKPIT PREFUSE BOX (BEHIND RIGHT END OF DASH) FUSE 11 INSTRUMENT CLUSTER LEFT FUEL LEVEL SENSOR (IN LEFT SIDE OF FUEL TANK) NCA WIRE PARKING BRAKE INDICATOR SWITCH REAR SAM CONTROL MODULE (RIGHT REAR OF CARGO AREA) RED WIRE RED/BLK WIRE RED/WHT WIRE RESTRAINTS SYSTEM CONTROL MODULE (UNDER CENTER CONSOLE) RIGHT FRONT BRAKE PAD CONTACT SENSOR (ON RIGHT FRONT BRAKE ASSEMBLY) RIGHT FUEL LEVEL SENSOR (IN RIGHT SIDE OF FUEL TANK) RIGHT REAR BRAKE PAD CONTACT SENSOR (ON RIGHT REAR BRAKE ASSEMBLY) SEAT BELT REMINDER LAMP VIO WIRE WARNING BUZZER WARNING LAMP WHT WIRE