Mercedes-Benz R-class W251 facelift (2007-2010) vio Wiring diagrams

54 41 10 37 23 50 11 88 39 43 64 74 75 CAN-CL CAN-CH ACCEL SET/ ACCELERATOR PEDAL SENSOR (TOP OF ACCELERATOR PEDAL ASSEMBLY) BLK/BLU WIRE BRN WIRE CAN C H CAN C L CAN-SH CAN-SL 31 COMPUTER DATA LINES SYSTEM CONTROL CONTACT CRUISE CONTROL SWITCH DECEL/ SET DKL DKP_M DK_S+ DK_S_ DTR CONTROL UNIT (BEHIND CENTER FRONT BUMPER) DTR DISTANCE POTENTIOMETER (IF EQUIPPED) ENGINE COMPARTMENT FUSE, RELAY BOX (RIGHT SIDE OF ENGINE COMPT) FUSE GRN WIRE GRN/WHT WIRE GRY/BLU WIRE HOT AT ALL TIMES COCKPIT FUSE 13 FUSE BOX (BEHIND RIGHT END OF DASH) HOT IN ON OR START ME-SFI CONTROL MODULE (TOP CENTER OF ENGINE) MEMORY RECALL OFF PNK/BLK WIRE PNK/BLU WIRE PNK/BRN WIRE PNK/GRN WIRE PNK/GRY WIRE PNK/WHT WIRE RED/BLK WIRE RED/BLU WIRE STEERING COLUMN MODULE (TOP OF STEERING COLUMN) THROTTLE VALVE ACTUATOR (REAR OF INTAKE MANIFOLD) VIO WIRE VIO/BLK WIRE VIO/WHT WIRE WHT/BLK WIRE YEL/BLK WIRE

1 2 3 4 5 6 7 8 9 10 11 12 AUX L SHIELD 1 2 3 4 5 6 7 8 HR+ VR+ VL+ HL+ HR- VR- VL- HL- 1 2 MOST OUT MOST IN 14 13 15 10 GND NF L NF R ANTENNA 30 WAKE UP ANT AUX R + BACKUP CAMERA CIRCUIT SOUND SYSTEMS BLK WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE CAN-B L MUTE CAN-B H 31 ANTENNA CIRCUIT 31 LEFT REAR SEAT VOLTAGE DISTRIBUTOR CONNECTOR 1 COMAND OPERATING, DISPLAY, CONTROL MODULE COMPUTER DATA LINES SYSTEM EMERGENCY CALL SYSTEM CONTROL UNIT (IN LEFT REAR FOOTWELL) FM REAR WINDOW ANTENNA AMPLIFIER (LEFT SIDE OF TAILGATE) FUSE 25 GPS GPS ANTENNA SPLITTER (LEFT REAR FOOTWELL) GRN WIRE GRN/BLK WIRE GRY/BLK WIRE HOT AT ALL TIMES INTERFERENCE FILTER 1 (TOP CENTER OF TAILGATE) LEFT FRONT DOOR SPEAKER LEFT FRONT DOOR TWEETER LEFT REAR DOOR SPEAKER LEFT REAR DOOR TWEETER LEFT REAR FOOTWELL NCA WIRE ORG/ WIRE PNK WIRE REAR AUDIO CONTROL UNIT (IF EQUIPPED) REAR SAM CONTROL MODULE (RIGHT REAR OF CARGO AREA) RED WIRE RED/BLK WIRE RIGHT FRONT DOOR SPEAKER RIGHT FRONT DOOR TWEETER RIGHT REAR DOOR SPEAKER RIGHT REAR DOOR TWEETER ROOF ANTENNA MODULE (CENTER REAR OF ROOF) SIG SOUND SYSTEMS VIO WIRE VIO/BLK WIRE W/ REAR ENTERTAINMENT W/O SOUND SYSTEM WALKMAN SEPARATION POINT WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

1 6 3 4 5 2 (NOT USED) PNK WIRE ANT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLK WIRE CENTER COCKPIT SPEAKER (CENTERFILL) CIRCUIT 31 LEFT REAR SEAT VOLTAGE DISTRIBUTOR CONNECTOR COMAND OPERATING DISPLAY, CONTROL MODULE (W/O SOUND SYSTEM) COMPUTER DATA LINES SYSTEM CTEL ANTENNA DISTRIBUTOR CONNECTOR EMERGENCY CALL SYSTEM CONTROL UNIT (IN LEFT REAR FOOTWELL) FRONT SAM CONTROL MODULE (UNDER FRONT PASSENGER'S SEAT) FUSE FUSE 60 (RIGHT REAR OF CARGO AREA) GPS ANTENNA SPLITTER (IN LEFT REAR FOOTWELL) GRN WIRE GRY WIRE GRY/WHT WIRE HANDS-FREE SYSTEM MICROPHONE GROUP HOT AT ALL TIMES HOT W/ CIRCUIT LEFT REAR FOOTWELL LOAD COMPARTMENT FUSE, RELAY BOX LSP + CAN-D H CAN-D L MB-INFO, TELEDIAGNOSIS BUTTON GROUP MIC 1 MIC GND LSP - MUTE NCA WIRE ORG/ WIRE PNK EC LED TDC LED IC LED ECS ICS ICS CRASH WIRE PNK WIRE RED WIRE SOS PUSHBUTTON SWITCH TELE AID SPARE ANTENNA (LEFT SIDE OF CARGO AREA) UNIVERSAL PORTABLE CTEL INTERFACE (UPCI (UHI)) CONTROL MODULE (UNDER RIGHT SEAT VIO WIRE W/ SOUND SYSTEM W/O SOUND SYSTEM W/ UPCI (UHI) (UNIVERSAL PORTABLE CTEL INTERFACE) W/O UPCI (UHI) (UNIVERSAL PORTABLE CTEL INTERFACE) WAKE UP SIGNAL WHT WIRE WHT/BLU WIRE YEL WIRE

3.5L AC RECIRCULATION UNIT BATTERY BATTERY COMPARTMENT PREFUSE BOX (UNDER RIGHT BLK WIRE BLU WIRE BOOSTER BLOWER ELECTRONIC BLOWER CONTROLLER BRN WIRE CIRCUIT CIRCUIT 31 RIGHT REAR SEAT VOLTAGE DISTRIBUTION CONNECTOR CIRCUIT 31 RIGHT REAR SEAT VOLTAGE DISTRIBUTOR CONNECTOR COCKPIT PREFUSE BOX EMERGENCY CALL SYSTEM CONTROL UNIT (IF EQUIPPED) ENGINE COMPARTMENT FUSE, RELAY BOX (RIGHT SIDE OF ENGINE COMPT) FRONT CIGAR LIGHTER (IN LEFT REAR (W/ ASHTRAY FOOTWELL) ILLUMINATION) FRONT SAM CONTROL MODULE FRONT SAM CONTROL UNIT FRONT SEAT) FUEL PUMP CONTROL MODULE (3.5L) FUSE 10 FUSE 11 FUSE 12 FUSE 13 FUSE 14 FUSE 15 (BEHIND RIGHT END OF DASH) FUSE 46 FUSE 50 FUSE 52 FUSE 53 FUSE 54 FUSE 56 FUSE 59 FUSE 55 FUSE 60 FUSE 61 RELAY FUSE 62 FUSE 63 FUSE 79 FUSE 80 FUSE 78 FUSE 82 FUSE 81 FUSE 83 FUSE 84 FUSE 85 FUSE 86 FUSE 87 FUSE 90 FUSE 89 FUSE 88 FUSE 91 GLOVE COMPARTMENT ILLUMINATION SWITCH GRY WIRE HEADLAMP RANGE ADJUSTMENT CONTROL MODULE (W/ XENON HEADLAMPS) ILL INSTRUMENT CLUSTER LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR (IF EQUIPPED) PNK WIRE PTC REAR SAM HEATER CONTROL BOOSTER MODULE (W/ HEATER BOOSTER) REAR SAM CONTROL MODULE REAR WIPER RELAY RED WIRE RELAY RESTRAINT REAR SAM CONTROL SYSTEMS MODULE CONTROL MODULE RESTRAINT SYSTEMS CONTROL MODULE RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR (IF EQUIPPED) SOCKET CIRCUIT STEERING COLUMN MODULE TAILGATE WIPER MOTOR TO DC/AC CONVERTER CONTROL UNIT (DIAGRAM 3 OF 3) TO ENGINE COMPARTMENT FUSE, RELAY BOX (DIAGRAM 3 OF 3) TO FRONT PREFUSE (DIAGRAM 3 OF 3) TO FUSE 48 (DIAGRAM 2 OF 3) UPPER CD CHANGER CONTROL PANEL CONTROL MODULE VIO WIRE W/ INTERIOR LIGHT PACKAGE W/O INTERIOR LIGHT PACKAGE WHT WIRE WIPER ON/OFF RELAY WSS CONTROL UNIT (WEIGHT SENSING SYSTEM) YEL WIRE

3 5 LD- LD+ 5 4 2 1 3 6 30 30 CAN-B L CAN-B H 31 31 BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BLU/WHT WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM FUSE FUSE RELAY BOX (RIGHT REAR OF CARGO AREA) GRN WIRE GRN/GRY WIRE GRN/WHT WIRE H SIG 2 H (-) H (+) H SIG 1 HOT AT ALL TIMES LOAD COMPARTMENT FUSE BOX, OVERHEAD CONTROL PANEL MODULE PANORAMIC SLIDING ROOF DRIVER UNIT 1 (IF EQUIPPED) (CENTER FRONT OF ROOF) PANORAMIC SLIDING ROOF DRIVER UNIT 2 (LEFT FRONT OF ROOF) RED WIRE ROLLER SUN BLIND DRIVE UNIT (PANORAMIC SLIDING ROOF) (RIGHT FRONT OF ROOF) ROOF SWITCH TILTING/SLIDING ROOF (SR (SHD)) DRIVER UNIT (FRONT CENTER OF ROOF) VIO WIRE VIO/GRY WIRE VIO/WHT WIRE YEL WIRE YEL/GRY WIRE YEL/WHT WIRE

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

1 2 3 30 31 WAKE-UP 1 2 3 4 MIC (-) MIC GND MIC (+) 1 2 MOST MOST IN MOST OUT 1 2 MOST OUT MOST IN BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLK WIRE CD CHANGER CENTER COCKPIT SPEAKER (CENTERFILL) EMERGENCY CALL SYSTEM CONTROL UNIT (IF EQUIPPED) (IN LEFT REAR FOOTWELL) GRN WIRE GRN/BLK WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT AT ALL TIMES COCKPIT FUSE BOX (BEHIND RIGHT END OF DASH) FUSE 14 LEFT FRONT DOOR SPEAKER LEFT FRONT DOOR TWEETER LEFT REAR DOOR SPEAKER LEFT REAR DOOR TWEETER LEFT REAR SURROUND LOUDSPEAKER MOST DATA BUS CIRCUIT NCA WIRE ORG/ WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT FRONT DOOR SPEAKER RIGHT FRONT DOOR TWEETER RIGHT REAR DOOR SPEAKER RIGHT REAR DOOR TWEETER RIGHT REAR SURROUND LOUDSPEAKER SOUND AMPLIFIER MICROPHONE SOUND SYSTEM AMPLIFIER (UNDER DRIVER'S SEAT) SRL (+) SRR (+) HR (+) HL (+) SUBWOOFER LOUDSPEAKER SW (+) SW (+) SW (+) SW (+) VM (+) VL (+) VL (+) SRL (-) SRR (-) HR (-) HL (-) VIO WIRE VIO/BLK WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/BLK WIRE

31 31 CAN L CAN H SIG CAK BF AIRBAG SQUIB BATTERY COMPT PREFUSE BOX FUSE 84 BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/VIO WIRE BRN/YEL WIRE CAK FA CAN L CIRCUIT 31 CONNECTOR COMPUTER DATA LINES SYSTEM DRIVER'S SIDE AIRBAG SQUIB ETR SQUIB FUSE 61 FUSE 83 GKB BF GKB FA GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GS BF GS HL HOT AT ALL TIMES HOT IN RUN OR START LEFT FRONT WSS SENSOR LEFT REAR WSS SENSOR LOAD COMPT FUSE, RELAY BOX FUSE 59 ORG/ WIRE PNK SK SS FA WIRE PNK SS BF WIRE PNK WIRE RED WIRE RED/BLK WIRE RESTRAINT SYSTEMS CONTROL MODULE RIGHT FRONT WSS SENSOR RIGHT REAR WSS SENSOR RIGHT SIDE AIRBAG SQUIB SB BF + SB FA SB HL SB HR GS HR SF FA SK SF BF VIO WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/YEL WIRE WB L (+) WB R GS FA WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/BLU WIRE

1 2 3 4 5 6 31 30 HL HR CAN B L CAN B H 1 2 3 4 5 6 7 8 9 10 31 31 SIG SIG 30 3 1 SIR SIL 31 31 PNK WIRE 36 35 CAN-B H CAN-B L BACKREST HEATED CUSHION BLU WIRE BLU/BLK WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CIRCUIT 31 LEFT FOOTWELL VOLTAGE DISTRIBUTOR CONNECTOR 1 CIRCUIT 31 LEFT REAR SEAT VOLTAGE DISTRIBUTOR CONNECTOR 3 CIRCUIT 31 RIGHT FOOTWELL VOLTAGE DISTRIBUTOR CONNECTOR COMPUTER DATA LINES SYSTEM FRONT SAM CONTROL UNIT (UNDER FRONT PASSENGER'S SEAT) FUSE 31 FUSE, RELAY BOX (RIGHT REAR OF CARGO AREA) FUSE 68 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES LEFT FRONT HS SWITCH LEFT FRONT SEAT BACKREST VENTILATION MOTOR GROUP (IN LEFT FRONT SEAT BACK) LEFT FRONT SEAT CUSHION VENTILATION MOTOR GROUP (IN LEFT FRONT SEAT CUSHION) LEFT FRONT SEAT HEATED CUSHION LEFT FRONT SEAT VENTILATION BLOWER REGULATOR LEFT FRONT SEAT VENTILATION SWITCH RIGHT FRONT HS SWITCH LEFT REAR FOOTWELL LHZ- NCA WIRE PNK WIRE RED WIRE RIGHT FRONT BACKREST HEATED CUSHION RIGHT FRONT SEAT BACKREST VENTILATION MOTOR GROUP (IN RIGHT FRONT SEAT BACK) RIGHT FRONT SEAT CUSHION VENTILATION MOTOR GROUP (IN RIGHT FRONT SEAT CUSHION) RIGHT FRONT SEAT HEATED CUSHION RIGHT FRONT SEAT VENTILATION BLOWER REGULATOR (IN RIGHT FRONT SEAT BACK) RIGHT FRONT SEAT VENTILATION SWITCH SEAT HEATED CUSHION STEERING COLUMN MODULE (IF EQUIPPED) (TOP OF STEERING COLUMN) UPPER CONTROL PANEL CONTROL MODULE VIO WIRE VIO/BLK WIRE

1 2 3 4 5 6 7 8 9 10 11 12 AUX L SHIELD 1 2 3 4 5 6 7 8 HR+ VR+ VL+ HL+ HR- VR- VL- HL- 1 2 MOST OUT MOST IN 14 13 15 10 GND NF L NF R ANTENNA 30 WAKE UP ANT AUX R + BACKUP CAMERA CIRCUIT SOUND SYSTEMS BLK WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE CAN-B L MUTE CAN-B H 31 ANTENNA CIRCUIT 31 LEFT REAR SEAT VOLTAGE DISTRIBUTOR CONNECTOR 1 COMAND OPERATING, DISPLAY, CONTROL MODULE COMPUTER DATA LINES SYSTEM EMERGENCY CALL SYSTEM CONTROL UNIT (IN LEFT REAR FOOTWELL) FM REAR WINDOW ANTENNA AMPLIFIER (LEFT SIDE OF TAILGATE) FUSE 25 GPS GPS ANTENNA SPLITTER (LEFT REAR FOOTWELL) GRN WIRE GRN/BLK WIRE GRY/BLK WIRE HOT AT ALL TIMES INTERFERENCE FILTER 1 (TOP CENTER OF TAILGATE) LEFT FRONT DOOR SPEAKER LEFT FRONT DOOR TWEETER LEFT REAR DOOR SPEAKER LEFT REAR DOOR TWEETER LEFT REAR FOOTWELL NCA WIRE ORG/ WIRE PNK WIRE REAR AUDIO CONTROL UNIT (IF EQUIPPED) REAR SAM CONTROL MODULE (RIGHT REAR OF CARGO AREA) RED WIRE RED/BLK WIRE RIGHT FRONT DOOR SPEAKER RIGHT FRONT DOOR TWEETER RIGHT REAR DOOR SPEAKER RIGHT REAR DOOR TWEETER ROOF ANTENNA MODULE (CENTER REAR OF ROOF) SIG SOUND SYSTEMS VIO WIRE VIO/BLK WIRE W/ REAR ENTERTAINMENT W/O SOUND SYSTEM WALKMAN SEPARATION POINT WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE