Mercedes-Benz E-class W212/S212/C207/A207 facelift (2013-2016) steering column module control unit Wiring diagrams

1 2 3 4 GND LVDS + RES LVDS - 1 2 4 5 6 LH + LH - 31 30 DATA 10 4 9 5 3 8 1 7 2 6 +, - LO, OK R, RETURN U MLL L 58 GND U MFL R +, - MUTE TEL 4 5 6 7 8 CAN A L ACCEPT/ TERMINATE PHONE CALL BUTTON AUDIO/COMAND CONTROL PANEL AUDIO/COMAND CONTROLLER AUDIO/COMAND DISPLAY BACK BUTTON BACK, VOICE CONTROL SYSTEM OFF BUTTON BLK WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BRN WIRE BRN/GRN WIRE BRN/ORG WIRE BUTTONS +, - SETTING OF SPECIFIC FUNCTIONS, VOLUME CONTROL CAN A H CAN A L CAN-A H CAN-A L COMPUTER DATA LINES SYSTEM DATA DELETE BUTTON FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT (PART OF STEERING COLUMN MODULE) FRONT SAM CONTROL MODULE W/ FUSE/RELAY MODULE FRONT SAM CONTROL MODULE W/ FUSE/RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE FUSE 11 FUSE 85 GRN WIRE GRN/WHT WIRE GRY/BLU WIRE HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSIDE STEERING WHEEL) LEFT FANFARE HORN SYSTEM BUTTON LEFT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP LH - LO, OK LVDS MUTE MUTE BUTTON OK BUTTON ORG/ WIRE PNK WIRE R RETURN REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED WIRE RED/BLU WIRE RES+ RIGHT DOOR BASS SPEAKER RIGHT DOOR SPEAKER RIGHT DOOR TWEETER RIGHT FANFARE HORN SYSTEM BUTTON RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP SCROLL FORWARD/ SCROLL FORWARD/ BACK BUTTON STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL ELECTRONICS SYSTEM SELECTION BACK BUTTON BUTTON SYSTEM SELECTION BUTTON TEL U MFL R U MLL L VOICE CONTROL SYSTEM ON BUTTON VOICE MUTE CONTROL BUTTON SYSTEM ON BUTTON WHT WIRE YEL WIRE

1 2 3 4 GND LVDS + RES LVDS - 1 2 4 5 6 LH + LH - 31 30 DATA 10 4 9 5 3 8 1 7 2 6 +, - LO, OK R, RETURN U MLL L 58 GND U MFL R +, - MUTE TEL 4 5 6 7 8 CAN A L ACCEPT/ TERMINATE PHONE CALL BUTTON AUDIO/COMAND CONTROL PANEL AUDIO/COMAND CONTROLLER AUDIO/COMAND DISPLAY BACK BUTTON BACK, VOICE CONTROL SYSTEM OFF BUTTON BLK WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BRN WIRE BRN/GRN WIRE BRN/ORG WIRE BUTTONS +, - SETTING OF SPECIFIC FUNCTIONS, VOLUME CONTROL CAN A H CAN A L CAN-A H CAN-A L COMPUTER DATA LINES SYSTEM DATA DELETE BUTTON FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT (PART OF STEERING COLUMN MODULE) FRONT SAM CONTROL MODULE W/ FUSE/RELAY MODULE FRONT SAM CONTROL MODULE W/ FUSE/RELAY MODULE (LEFT REAR OF ENGINE COMPT) FUSE FUSE 11 FUSE 85 GRN WIRE GRN/WHT WIRE GRY/BLU WIRE HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSIDE STEERING WHEEL) LEFT FANFARE HORN SYSTEM BUTTON LEFT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP LH - LO, OK LVDS MUTE MUTE BUTTON OK BUTTON ORG/ WIRE PNK WIRE R RETURN REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED WIRE RED/BLU WIRE RES+ RIGHT DOOR BASS SPEAKER RIGHT DOOR SPEAKER RIGHT DOOR TWEETER RIGHT FANFARE HORN SYSTEM BUTTON RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP SCROLL FORWARD/ SCROLL FORWARD/ BACK BUTTON STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL ELECTRONICS SYSTEM SELECTION BACK BUTTON BUTTON SYSTEM SELECTION BUTTON TEL U MFL R U MLL L VOICE CONTROL SYSTEM ON BUTTON VOICE MUTE CONTROL BUTTON SYSTEM ON BUTTON WHT WIRE YEL WIRE

10 4 9 5 3 8 1 7 2 6 +,- OK R,RTN U-MLL-L 58 GND U-MFL-R +,- MUTE TEL ACCEPT/ TERMINATE PHONE CALL BUTTON ANTENNA AMPLIFIER BACK, VOICE CONTROL SYSTEM OFF BUTTON BLK WIRE BLU WIRE BLUETOOTH ANTENNA BRN WIRE BRN/ORG WIRE BUTTONS +, - SETTING SPECIFIC FUNCTION, VOLUME CONTROL COMPUTER DATA LINES SYSTEM FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT (PART OF STEERING COLUMN MODULE) GLOBAL POSITIONING SYSTEM ANTENNA SPLITTER GRN WIRE GRN/ORG WIRE GRN/WHT WIRE GRY/BLU WIRE HANDS-FREE SYSTEM MICROPHONE INSIDE REARVIEW MIRROR INSIDE STEERING WHEEL) KEYLESS GO ANTENNA AMPLIFIER LEFT "C" PILLAR) LEFT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP MUTE MUTE BUTTON NCA WIRE OK BUTTON OK BUTTON BACK BUTTON ORG/ WIRE PNK 1 2 3 4 WIRE PNK WIRE PNK/BLU WIRE R,RTN RED WIRE RIGHT FRONT DOOR BASS SPEAKER RIGHT FRONT DOOR TWEETER RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP SCROLL BACK, VOICE FORWARD/ CONTROL SYSTEM BACK BUTTON OFF BUTTON SCROLL FORWARD/ SEDAN STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL ELECTRONICS STEERING WHEEL ELECTRONICS (INSIDE STEERING WHEEL) SYSTEM SELECTION BUTTON TEL U MFL R U MLL L VOICE CONTROL SYSTEM ON BUTTON VOICE CONTROL SYSTEM SELECTION SYSTEM ON BUTTON BUTTON W/ NAVIGATION WAGON WHT WIRE YEL WIRE

10 4 9 5 3 8 1 7 2 6 +,- OK R,RTN U-MLL-L 58 GND U-MFL-R +,- MUTE TEL ACCEPT/ TERMINATE PHONE CALL BUTTON ANTENNA AMPLIFIER BACK, VOICE CONTROL SYSTEM OFF BUTTON BLK WIRE BLU WIRE BLUETOOTH ANTENNA BRN WIRE BRN/ORG WIRE BUTTONS +, - SETTING SPECIFIC FUNCTION, VOLUME CONTROL COMPUTER DATA LINES SYSTEM FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT (PART OF STEERING COLUMN MODULE) GLOBAL POSITIONING SYSTEM ANTENNA SPLITTER GRN WIRE GRN/ORG WIRE GRN/WHT WIRE GRY/BLU WIRE HANDS-FREE SYSTEM MICROPHONE INSIDE REARVIEW MIRROR INSIDE STEERING WHEEL) KEYLESS GO ANTENNA AMPLIFIER LEFT "C" PILLAR) LEFT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP MUTE MUTE BUTTON NCA WIRE OK BUTTON OK BUTTON BACK BUTTON ORG/ WIRE PNK 1 2 3 4 WIRE PNK WIRE PNK/BLU WIRE R,RTN RED WIRE RIGHT FRONT DOOR BASS SPEAKER RIGHT FRONT DOOR TWEETER RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP SCROLL BACK, VOICE FORWARD/ CONTROL SYSTEM BACK BUTTON OFF BUTTON SCROLL FORWARD/ SEDAN STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL ELECTRONICS STEERING WHEEL ELECTRONICS (INSIDE STEERING WHEEL) SYSTEM SELECTION BUTTON TEL U MFL R U MLL L VOICE CONTROL SYSTEM ON BUTTON VOICE CONTROL SYSTEM SELECTION SYSTEM ON BUTTON BUTTON W/ NAVIGATION WAGON WHT WIRE YEL WIRE

BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/RED WIRE CAN B H CAN B L CAN-G H CAN-G L COMBINATION SWITCH COMPUTER DATA LINES SYSTEM EXTERIOR LIGHTS SWITCH FRONT ELECTRICAL PREFUSE BOX FRONT FOG LAMP BUTTON FRONT FOG LAMP INDICATOR LAMP FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 13 FUSE 152 FUSE 5 GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/PNK WIRE GRY/RED WIRE GRY/YEL WIRE HEADLAMP FLASHER/ HIGH BEAM SWITCH HIGH BEAM INDICATOR LAMP HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED INSTRUMENT CLUSTER LEFT DAYTIME RUNNING LAMPS LEFT FOG LAMP (IF EQUIPPED) LEFT FRONT LEVEL SENSOR LEFT REAR LEVEL SENSOR LIN 2 LOW BEAM SWITCH OVERHEAD CONTROL PANEL ELECTRONICS PARKING BRAKE INDICATOR SWITCH PNK/RED WIRE REAR FOG LIGHT BUTTON RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT DAYTIME RUNNING LAMPS RIGHT FOG LAMP (IF EQUIPPED) SIG STEERING COLUMN MODULE CONTROL UNIT SWITCH ILLUMINATION WHT/RED WIRE YEL WIRE YEL/WHT WIRE

BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN-G H CAN-G L COMBINATION SWITCH COMPUTER DATA LINES SYSTEM EXTERIOR LIGHTS SWITCH FRONT ELECTRICAL PREFUSE BOX FRONT FOG LAMP BUTTON FRONT FOG LAMPS INDICATOR LAMP FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 152 FUSE 5 GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/PNK WIRE HEADLAMP FLASHER/ HIGH BEAM SWITCH LOW BEAM SWITCH HIGH BEAM INDICATOR LAMP HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED INSTRUMENT CLUSTER LEFT DAYTIME RUNNING LAMPS LEFT FOG LAMP (IF EQUIPPED) LEFT REAR LEVEL SENSOR PARKING BRAKE INDICATOR SWITCH PNK/RED WIRE REAR FOG LIGHT BUTTON RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT DAYTIME RUNNING LAMPS RIGHT FOG LAMP (IF EQUIPPED) SIG STEERING COLUMN MODULE CONTROL UNIT SWITCH ILLUMINATION WHT WIRE WHT/BLK WIRE YEL WIRE YEL/WHT WIRE

ACCELERATE, SET SWITCH BEAM SWITCH BLK WIRE BLU WIRE BRN WIRE BRN/YEL WIRE COMBINATION SWITCH COMPUTER DATA LINES SYSTEM CRUISE CONTROL LEVER DECELERATE, SET SWITCH DECELERATE, SET SWITCH RESUME FROM MEMORY SWITCH DIRECT SELECT LEVER DISTRONIC CONTROL (IF EQUIPPED) FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT (PART OF STEERING COLUMN MODULE) FRONT SAM CONTROL MODULE W/ FRONT SAM CONTROL MODULE W/ FUSE/RELAY MODULE FUSE FUSE 13 FUSE 65 FUSE FUSE/RELAY MODULE (LEFT REAR OF ENGINE COMPT) GRN WIRE GRN/WHT WIRE HEADLAMP FLASHER/HIGH BEAM SWITCH HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INDICATOR SWITCH LOW BEAM SWITCH OFF SWITCH PNK/BLU WIRE REAR SAM CONTROL MODULE W/ FUSE/RELAY MODULE REAR SAM CONTROL MODULE W/ FUSE/RELAY MODULE (RIGHT SIDE OF LUGGAGE COMPT) RED WIRE RED/BLK WIRE RESUME FROM MEMORY SWITCH STEERING ANGLE SENSOR STEERING ANGLE SENSOR (INTEGRAL TO STEERING COLUMN MODULE) STEERING COLUMN ADJUSTMENT SWITCH STEERING COLUMN ADJUSTMENT, STEERING WHEEL HEATER SWITCH STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL HEATER INDICATOR LAMP (IF EQUIPPED) STEERING WHEEL HEATER SWITCH (IF EQUIPPED) SUPPLEMENTAL RESTRAINTS SYSTEM TURN SIGNAL LAMP SWITCH TURN SIGNAL LAMP SWITCH HEADLAMP FLASHER/HIGH BEAM SWITCH LOW VIO WIRE VIO/GRN WIRE WHT WIRE WINDSHIELD WASHER SYSTEM SWITCH WIPE SWITCH YEL WIRE

ACCELERATE, SET SWITCH BEAM SWITCH BLK WIRE BLU WIRE BRN WIRE BRN/YEL WIRE COMBINATION SWITCH COMPUTER DATA LINES SYSTEM CRUISE CONTROL LEVER DECELERATE, SET SWITCH DECELERATE, SET SWITCH RESUME FROM MEMORY SWITCH DIRECT SELECT LEVER DISTRONIC CONTROL (IF EQUIPPED) FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT (PART OF STEERING COLUMN MODULE) FRONT SAM CONTROL MODULE W/ FRONT SAM CONTROL MODULE W/ FUSE/RELAY MODULE FUSE FUSE 13 FUSE 65 FUSE FUSE/RELAY MODULE (LEFT REAR OF ENGINE COMPT) GRN WIRE GRN/WHT WIRE HEADLAMP FLASHER/HIGH BEAM SWITCH HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INDICATOR SWITCH LOW BEAM SWITCH OFF SWITCH PNK/BLU WIRE REAR SAM CONTROL MODULE W/ FUSE/RELAY MODULE REAR SAM CONTROL MODULE W/ FUSE/RELAY MODULE (RIGHT SIDE OF LUGGAGE COMPT) RED WIRE RED/BLK WIRE RESUME FROM MEMORY SWITCH STEERING ANGLE SENSOR STEERING ANGLE SENSOR (INTEGRAL TO STEERING COLUMN MODULE) STEERING COLUMN ADJUSTMENT SWITCH STEERING COLUMN ADJUSTMENT, STEERING WHEEL HEATER SWITCH STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL HEATER INDICATOR LAMP (IF EQUIPPED) STEERING WHEEL HEATER SWITCH (IF EQUIPPED) SUPPLEMENTAL RESTRAINTS SYSTEM TURN SIGNAL LAMP SWITCH TURN SIGNAL LAMP SWITCH HEADLAMP FLASHER/HIGH BEAM SWITCH LOW VIO WIRE VIO/GRN WIRE WHT WIRE WINDSHIELD WASHER SYSTEM SWITCH WIPE SWITCH YEL WIRE

1 2 3 4 CD LVDS - RES LVDS + GND 1 2 3 4 GND LVDS + RES LVDS - 1 2 MOST OUT MOST IN 31 CAN A L ACCEPT/ TERMINATE PHONE CALL BUTTON ANT SAT AUDIO/COMAND CONTROL PANEL AUDIO/COMAND CONTROLLER AUDIO/COMAND DISPLAY BACK BUTTON BACK, VOICE CONTROL SYSTEM OFF BUTTON BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/RED WIRE BUTTONS +, - SETTING SPECIFIC FUNCTION, VOLUME CONTROL CAN A H CAN A L CAN B H CAN B L CAN B L COMPUTER DATA LINES SYSTEM CAN B H 31 CAN-A H CAN-A L CELLULAR TELEPHONE SYSTEM ANTENNA AMPLIFIER/ COMPENSATOR CELLULAR TELEPHONE SYSTEM ANTENNA AMPLIFIER/ COMPENSATOR (IF EQUIPPED) COMPUTER DATA LINES SYSTEM DELETE BUTTON FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT (PART OF STEERING COLUMN MODULE) FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 11 FUSE 13 FUSE 26 FUSE 84 FUSE FUSE FUSE FUSE W/ FUSE, RELAY MODULE (RIGHT SIDE OF LUGGAGE COMPT) GND CD GRN WIRE GRN/ORG WIRE GRN/WHT WIRE GRY/BLU WIRE HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED KEEP ON KEEP ON 14 15 16 LEFT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP LVDS MOBILE PHONE ELECTRICAL CONNECTOR MOBILE PHONE ELECTRICAL CONNECTOR (IF EQUIPPED), MOST MOST DATA BUS CIRCUIT MOST IN MOST IN MOST MOST OUT MUTE BUTTON NCA WIRE OK BUTTON ORG/ WIRE PNK WIRE PNK/BLU WIRE RADIO REAR SAM CONTROL MODULE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RES+ RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP SAT SCROLL OK FORWARD/ BUTTON BACK BUTTON SDAR CONTROL UNIT/ HIGH DEFINITION TUNER SDAR CONTROL UNIT/ HIGH DEFINITION TUNER (LEFT SIDE OF LUGGAGE COMPT) SHIELD SHIELD ANT STEERING COLUMN MODULE CONTROL UNIT STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) SYSTEM SELECTION BUTTON VOICE CONTROL SYSTEM ON BUTTON W/ DIRECT SELECT W/O DIRECT SELECT WAKE UP MOST DATA 1 2 3 4 BUS CIRCUIT MOST OUT MOST IN WAKE-UP WHT WIRE YEL WIRE

1 2 3 4 CD LVDS - RES LVDS + GND 1 2 3 4 GND LVDS + RES LVDS - 1 2 MOST OUT MOST IN 31 CAN A L ACCEPT/ TERMINATE PHONE CALL BUTTON ANT SAT AUDIO/COMAND CONTROL PANEL AUDIO/COMAND CONTROLLER AUDIO/COMAND DISPLAY BACK BUTTON BACK, VOICE CONTROL SYSTEM OFF BUTTON BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/RED WIRE BUTTONS +, - SETTING SPECIFIC FUNCTION, VOLUME CONTROL CAN A H CAN A L CAN B H CAN B L CAN B L COMPUTER DATA LINES SYSTEM CAN B H 31 CAN-A H CAN-A L CELLULAR TELEPHONE SYSTEM ANTENNA AMPLIFIER/ COMPENSATOR CELLULAR TELEPHONE SYSTEM ANTENNA AMPLIFIER/ COMPENSATOR (IF EQUIPPED) COMPUTER DATA LINES SYSTEM DELETE BUTTON FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT (PART OF STEERING COLUMN MODULE) FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 11 FUSE 13 FUSE 26 FUSE 84 FUSE FUSE FUSE FUSE W/ FUSE, RELAY MODULE (RIGHT SIDE OF LUGGAGE COMPT) GND CD GRN WIRE GRN/ORG WIRE GRN/WHT WIRE GRY/BLU WIRE HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED KEEP ON KEEP ON 14 15 16 LEFT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP LVDS MOBILE PHONE ELECTRICAL CONNECTOR MOBILE PHONE ELECTRICAL CONNECTOR (IF EQUIPPED), MOST MOST DATA BUS CIRCUIT MOST IN MOST IN MOST MOST OUT MUTE BUTTON NCA WIRE OK BUTTON ORG/ WIRE PNK WIRE PNK/BLU WIRE RADIO REAR SAM CONTROL MODULE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RES+ RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP SAT SCROLL OK FORWARD/ BUTTON BACK BUTTON SDAR CONTROL UNIT/ HIGH DEFINITION TUNER SDAR CONTROL UNIT/ HIGH DEFINITION TUNER (LEFT SIDE OF LUGGAGE COMPT) SHIELD SHIELD ANT STEERING COLUMN MODULE CONTROL UNIT STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) SYSTEM SELECTION BUTTON VOICE CONTROL SYSTEM ON BUTTON W/ DIRECT SELECT W/O DIRECT SELECT WAKE UP MOST DATA 1 2 3 4 BUS CIRCUIT MOST OUT MOST IN WAKE-UP WHT WIRE YEL WIRE