Mercedes-Benz E-class W212/S212/C207/A207 (2009-2013) processing module (inside steering wheel) Wiring diagrams

1 2 CAN-E L CAN-E H BACK, VOICE CONTROL SYSTEM OFF BUTTON BEAM SWITCH BLK WIRE BLU WIRE BRN WIRE COMBINATION SWITCH COMPUTER DATA LINES SYSTEM CRUISE CONTROL LEVER DISTRONIC CONTROL (IF EQUIPPED) DRIVER SIDE SAM CONTROL MODULE W/ FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT (TOP OF STEERING COLUMN) FUSE FUSE/RELAY MODULE (LEFT REAR OF ENGINE COMPT) GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES INDICATOR SWITCH LEFT FANFARE HORN SYSTEM BUTTON LEFT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP MUTE BUTTON NCA WIRE OFF SWITCH OK BUTTON PROCESSING MODULE (INSIDE STEERING WHEEL) RED WIRE RED/BLU WIRE RIGHT FANFARE HORN SYSTEM BUTTON RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP SCROLL FORWARD/ BACK BUTTON SPEEDTRONIC LIGHT EMITTING DIODE SPEEDTRONIC SWITCH (CANADA) STEERING ANGLE SENSOR STEERING COLUMN ADJUSTMENT SWITCH 17 18 19 STEERING COLUMN MODULE (TOP OF STEERING COLUMN) STEERING WHEEL DOWNSHIFT BUTTON (IF EQUIPPED) STEERING WHEEL GEAR SHIFT SIGNAL STEERING WHEEL UPSHIFT BUTTON (IF EQUIPPED) SUPPLEMENTAL RESTRAINTS SYSTEM SYSTEM SELECTION BUTTON TURN SIGNAL LAMP SWITCH HEAD LAMP FLASHER/HIGH BEAM SWITCH LOW VIO WIRE VOICE CONTROL SYSTEM ON BUTTON WHT WIRE WINDSHIELD WASHER SYSTEM SWITCH WIPE SWITCH YEL WIRE

+, - OK 1 2 1 2 1 2 GND LSP- LSP+ GND ALDW+ ALDW- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 CAN-E L CAN-E H 31 30 1 2 4 3 CAN-B H CAN-B L 1 2 NTC + NTC - BACK, VOICE CONTROL SYSTEM OFF BUTTON BEAM SWITCH BLK WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/YEL WIRE COMBINATION SWITCH COMPUTER DATA LINES SYSTEM CRUISE CONTROL LEVER DECELERATE, SET SWITCH RESUME FROM MEMORY SWITCH ACCELERATE, SET SWITCH DIRECT SELECT LEVER DISTRONIC CONTROL (IF EQUIPPED) DRIVER SIDE SAM CONTROL MODULE W/ FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT FUSE FUSE/RELAY MODULE (LEFT REAR OF ENGINE COMPT) GRN WIRE GRN/WHT WIRE HEATING ELEMENT TEMPERATURE SENSOR HOT AT ALL TIMES INDICATOR SWITCH LEFT FANFARE HORN SYSTEM BUTTON LEFT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP MUTE MUTE BUTTON NCA WIRE OFF SWITCH OK BUTTON PNK/BLU WIRE PROCESSING MODULE (INSIDE STEERING WHEEL) R RETURN RED WIRE RED/BLK WIRE RIGHT FANFARE HORN SYSTEM BUTTON RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP SCROLL FORWARD/ BACK BUTTON SPEEDTRONIC LIGHT EMITTING DIODE (CANADA) SPEEDTRONIC SWITCH (CANADA) STEERING ANGLE SENSOR STEERING COLUMN ADJUSTMENT SWITCH STEERING COLUMN ADJUSTMENT, STEERING WHEEL HEATER SWITCH STEERING WHEEL DOWNSHIFT BUTTON (IF EQUIPPED) STEERING WHEEL GEAR SHIFT SIGNAL STEERING WHEEL HEATER HEATING ELEMENT (IF EQUIPPED) STEERING WHEEL UPSHIFT BUTTON (IF EQUIPPED) STEERING WHEEL VIBRATION MOTOR (W/ AUTOMATIC LANE RECOGNITION) SUPPLEMENTAL RESTRAINTS SYSTEM SYSTEM SELECTION BUTTON TEL TURN SIGNAL LAMP SWITCH HEAD LAMP FLASHER/HIGH BEAM SWITCH LOW U MFL R U-MLL-L GND VIO WIRE VIO/GRN WIRE VOICE CONTROL SYSTEM ON BUTTON WHT WIRE WINDSHIELD WASHER SYSTEM SWITCH WIPE SWITCH YEL WIRE