Mercedes-Benz E-class W212/S212/C207/A207 facelift (2013-2016) supplemental restraint system control unit (under front of center console) Wiring diagrams

2 LCT ANT GPS GPS ANT NOT SHIELD NOT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BREAKDOWN ASSISTANCE BUTTON BRN WIRE BRN/GRN WIRE CAN D H CAN D L CAN-D H CAN-D L CENTER INSTRUMENT PANEL SPEAKER COMAND CONTROL UNIT (IF EQUIPPED) COMMAND CONTROL UNIT (IF EQUIPPED) COMPUTER DATA LINES SYSTEM CRASH DIAGNOSTIC CONNECTOR (DLC) (UNDER LEFT SIDE OF DASH) EMERGENCY CALL SYSTEM ANTENNA EMERGENCY CALL SYSTEM ANTENNA (CENTER OF HAT SHELF) EMERGENCY CALL SYSTEM BUTTON EMERGENCY CALL SYSTEM CONTROL UNIT EMERGENCY CALL SYSTEM CONTROL UNIT (CENTER FRONT OF LUGGAGE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 83 FUSE 87 GLOBAL POSITIONING SYSTEM ANTENNA SPLITTER GLOBAL POSITIONING SYSTEM ANTENNA SPLITTER (CENTER FRONT OF LUGGAGE COMPT) GPS GRN WIRE GRY WIRE GRY/BLU WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT W/ CIRCUIT INFO LED LCT MB INFO BUTTON MB-INFO, TELEDIAGNOSIS BUTTON MIC + MIC - MIC - MOBILE PHONE ELECTRICAL CONNECTOR MOBILE PHONE ELECTRICAL CONNECTOR (IF EQUIPPED), MULTI-FUNCTION ANTENNA MUTE NCA WIRE OVERHEAD CONTROL PANEL CONTROL MODULE OVERHEAD CONTROL PANEL CONTROL MODULE (W/ POWER TILTING/ OVERHEAD CONTROL PANEL ELECTRONICS PNK/GRN WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (RIGHT SIDE OF LUGGAGE COMPT) RED/BLK WIRE SHIELD SHIELD ANT GPS SIG SIG SHIELD ANT NOT SHIELD SOS SOS LED SOUND SYSTEM AMPLIFIER CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT (UNDER FRONT OF CENTER CONSOLE) TEL VIO WIRE W/ ADVANCED SOUND SYSTEM W/ ADVANCED SOUND SYSTEM W/O ADVANCED SOUND SYSTEM W/ COMAND W/ COMMAND W/O ADVANCED SOUND SYSTEM W/O COMAND W/O COMMAND WHT WIRE WS LED YEL WIRE YEL/VIO WIRE

3 4 LIN 1 42 55 CAN C H CAN C L 6 7 CAN C L CAN C H 7 6 5 GSS BF RETURN LINE GSS FA ANALOG CLOCK ANTI-THEFT ALARM SYSTEM INDICATOR LAMP AUTOMATIC CHILD SEAT RECOGNITION WARNING LAMP AUTOMATIC TRANSMISSION MODE BUTTON BLU WIRE BLU/WHT WIRE BRAKE FLUID LEVEL SWITCH (IN BRAKE FLUID RESERVOIR) BRN WIRE BRN/BLK WIRE BRN/WHT WIRE BRN/YEL WIRE CAN C H CAN C L CAN E H CAN E L COMPUTER DATA LINES SYSTEM COOLANT LEVEL SWITCH COOLANT LEVEL SWITCH (UNDERSIDE OF COOLANT RESERVOIR) DIESEL DRIVER SIDE SEAT BELT BUCKLE RESTRAINT SYSTEMS SWITCH ELECTRONIC SELECTOR LEVER MODULE CONTROL MODULE ELECTRONIC SELECTOR LEVER MODULE CONTROL MODULE (BASE OF SHIFT LEVER ASSEMBLY) EXTERIOR LIGHT SWITCH EXTERIOR LIGHT SWITCH (W/ NETWORK EXTERIOR LIGHT SWITCH) FRONT PASSENGER SIDE SEAT BELT BUCKLE RESTRAINT SYSTEMS SWITCH GRN WIRE GRN/WHT WIRE GSS BF GSS, FA HAZARD WARNING SYSTEM BUTTON LEFT FRONT HEATED SEAT BUTTON LEFT FRONT SEAT VENTILATION BUTTON LEFT FRONT SEAT VENTILATION BUTTON LEFT FRONT HEATED SEAT BUTTON LIN LIN 1 ME-SFI (ME) CONTROL UNIT (GASOLINE) CDI CONTROL UNIT NCA WIRE ORG/ WIRE ORG/BLU WIRE ORG/GRN WIRE ORG/VIO WIRE PARKING BRAKE INDICATOR SWITCH PARKING BRAKE INDICATOR SWITCH (ON PARKING BRAKE ASSEMBLY) PARKING SYSTEM BUTTON REAR HEAD RESTRAINTS BUTTON REAR WINDOW ROLLER SUN BLIND BUTTON RED WIRE RED/YEL WIRE RETURN LINE RIGHT FRONT BRAKE WEAR SENSOR RIGHT FRONT HEATED SEAT BUTTON RIGHT FRONT SEAT VENTILATION BUTTON RIGHT REAR BRAKE WEAR SENSOR RIGHT REAR BRAKE WEAR SENSOR (ON RIGHT REAR BRAKE CALIPER ASSEMBLY) STATIONARY HEATER BUTTON SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT (UNDER FRONT OF CENTER CONSOLE) SUPPLEMENTAL RESTRAINTS SYSTEM SUSPENSION BUTTON GROUP UPPER CONTROL PANEL CONTROL UNIT YEL/BLU WIRE

1 2 CAN B L CAN B H 17 18 CAN B L CAN B H 31 31 RTN LINE GSS FA 8 9 GND SIG BBV HR BBV VL BFS BRAKE FLUID LEVEL SWITCH BRAKE FLUID LEVEL SWITCH (IN BRAKE FLUID RESERVOIR) BRAKE FLUID, PARKING BRAKE INDICATOR LAMP BRN WIRE BRN/BLK WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN E H CAN E L COMPUTER DATA LINES SYSTEM DRIVER SEAT BELT BUCKLE RESTRAINT SYSTEMS SWITCH FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE FUSE 15 FUSE 28 GRN WIRE GRN/WHT WIRE GSS, FA HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER LEFT DOOR CONTROL UNIT LEFT FRONT DOOR LOCK LEFT FRONT DOOR LOCK ROTARY TUMBLER SWITCH MULTI-FUNCTION DISPLAY NCA WIRE ORG/BLU WIRE ORG/GRN WIRE PARKING BRAKE INDICATOR SWITCH PARKING BRAKE INDICATOR SWITCH (ON PARKING BRAKE ASSEMBLY) RED/BLU WIRE RED/WHT WIRE RIGHT FRONT BRAKE WEAR SENSOR RIGHT FRONT BRAKE WEAR SENSOR (ON RIGHT FRONT BRAKE CALIPER ASSEMBLY) RIGHT REAR BRAKE WEAR SENSOR RIGHT REAR BRAKE WEAR SENSOR (ON RIGHT REAR BRAKE CALIPER ASSEMBLY) ROTARY TUMBLER SWITCH RTN LINE SEAT BELT WARNING LAMP SERVICE BRAKE IND LAMP SIG SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT (UNDER FRONT OF CENTER CONSOLE) SUPPLEMENTAL RESTRAINTS SYSTEM W/O KEYLESS-GO W/ KEYLESS-GO WARNING BUZZER YEL WIRE YEL/WHT WIRE

2.1L TURBO DIESEL 2.1L TURBO DIESEL EXCEPT 2.1L TURBO DIESEL 42 43 PNK WIRE 65 66 67 68 GS HR + GS HR - PB BF - PB BF + PB FA + PB FA - CAK FA CAK BF BLK BRN/ WIRE BLK WIRE BLK/GRY WIRE BLK/PNK WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAK BF CAK FA CDI CONTROL MODULE CDI CONTROL MODULE (IN RIGHT FRONT WHEEL- WELL) CENTER REAR SEAT BELT BUCKLE SWITCH CH OUT AN CSH OUT DIG DRIVER PELVIS AIR BAG SQUIB DS BF + DS FA + DS HL+ DS HR - EXCEPT 2.1L TURBO DIESEL FRONT PASSENGER PELVIS AIR BAG SQUIB FRONT PASSENGER SEAT POSITION DETECTION SWITCH FRONT SAM CONTROL MODULE FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FS VL+ FS VL- FS VR- FS VM+ FS VR+ FUSE 15 FUSE 37 FUSE 8 GRN WIRE GRN/YEL WIRE GRY BRN/ WIRE GRY WHT/ WIRE GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/ORG WIRE GRY/VIO WIRE GS BF + GS FA+ GS HL - GS HR - GSS BF GSS, FA HOT W/ CIRCUIT HOT W/ ENGINE CIRCUIT 87 RELAY ENERGIZED LEFT REAR SEAT BELT BUCKLE SWITCH LIN E 2 ME-SFI (ME) CONTROL MODULE MHS LI MHS RE NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/GRN WIRE ORG/RED WIRE ORG/VIO WIRE PB BF + PB FA - PNK WIRE PNK/BLK WIRE PNK/GRN WIRE PPS+ LI PPS- RE REAR SAM CONTROL MODULE W/ FUSE/RELAY MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RED/YEL WIRE RELAY 1 ENERGIZED RETURN LINE RIGHT REAR EMERGENCY TENSIONING RETRACTOR SQUIB SB BF + SB FA + SB HL - SB HR - SBR SIG SS BF + SS FA + SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT (UNDER FRONT OF CENTER CONSOLE) UFS BF + UFS FA + VIO WIRE VIO/BLU WIRE VIO/GRN WIRE W/ FUSE/ RELAY MODULE (LEFT REAR OF ENGINE COMPT) W/ WEIGHT SENSING SYSTEM WB VL- WB VR+ WHT GRY/ WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/RED WIRE

12 13 31 SIG FS VM- 65 66 67 68 GS HR + GS HR - PG BF - PG BF + PG FA + PG FA - BLK WIRE BLK/GRY WIRE BLK/ORG WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU VIO/ WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAK BF CAK FA CAK FA CAK BF COUPE CSH OUT AN CSH OUT DIG DRIVER PELVIS AIR BAG SQUIB DRIVER PELVIS AIR BAG SQUIB (IF EQUIPPED) (OUTER EDGE OF DRIVER'S SEAT CUSHION) DS BF + DS FA + EDW FRONT ELECTRICAL PREFUSE BOX FRONT PASSENGER PELVIS AIR BAG SQUIB FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 21 FS VL+ FS VM+ FS VR+ FUSE 15 FUSE 150 FUSE 21 FUSE 37 FUSE 8 GRN BRN/ WIRE GRN WIRE GRN/ WHT WIRE GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE GRY/ORG WIRE GS BF + GS FA+ GS HL - GS HR - GSS BF GSS HL GSS HR GSS, FA HOT AT ALL TIMES HOT W/ CIRCUIT LIN ME-SFI (ME) CONTROL MODULE MODULE (CONVERTIBLE: IN SPARE WHEELWELL) (COUPE: RIGHT FRONT OF LUGGAGE COMPT) NCA WIRE PG FA - PG, BF+ PNK WIRE PNK/BLK WIRE PNK/WHT WIRE PPS+ LI PPS- RE PYRO- FUSE REAR SAM CONTROL MODULE W/ FUSE/RELAY MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RED/YEL WIRE RELAY 1 ENERGIZED RELAY 1 ENERGIZED REAR SAM CONTROL MODULE W/ FUSE/RELAY FUSE 37 RETURN LINE RIGHT REAR EMERGENCY TENSIONING RETRACTOR SQUIB RIGHT REAR EMERGENCY TENSIONING RETRACTOR SQUIB (IF EQUIPPED) RIGHT REAR SEAT BELT BUCKLE SWITCH SB BF - PNK SB BF + WIRE SB FA + SB HL - SB HR - SBE SIG SIG 31 FS VM+ SS BF + SS FA + SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT (UNDER FRONT OF CENTER CONSOLE) UFS BF + UFS FA + UFS FA - UFS BF - SS BF - SS FA - GSS FA RETURN LINE GSS BF DS FA - DS BF - 2 3 VIO WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/YEL WIRE W/O ECO START/STOP FUNCTION WB VL- WB VR+ WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/BRN WIRE

4 5 6 GND SIG 30 BELT TENSION SENSOR BELT TENSION SENSOR (INTEGRAL TO FRONT PASSENGER'S SEAT BELT ANCHOR) BLK/RED WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE FRONT SAM CONTROL MODULE W/ FUSE, FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 21 FUSE 21, RELAY MODULE (LEFT REAR OF ENGINE COMPT) HOT W/ CIRCUIT NCA WIRE RED/BLU WIRE SIG SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT (UNDER FRONT OF CENTER CONSOLE) VIO/GRN WIRE WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT (UNDER FRONT PASSENGER'S SEAT)

4 5 6 GND SIG 30 BELT TENSION SENSOR BELT TENSION SENSOR (INTEGRAL TO FRONT PASSENGER'S SEAT BELT ANCHOR) BRN WIRE BRN/WHT WIRE FUSE 77 GRY WIRE HOT W/ CIRCUIT LIN LIN 31 PNK/BLK WIRE PNK/WHT WIRE REAR SAM CONTROL REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE SIG SIG PNK (+) WIRE SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT (UNDER FRONT OF CENTER CONSOLE) VIO/GRN WIRE WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT (UNDER FRONT PASSENGER'S SEAT) WHT WIRE

4 5 6 GND SIG 30 BELT TENSION SENSOR BELT TENSION SENSOR (INTEGRAL TO FRONT PASSENGER'S SEAT BELT ANCHOR) BLK/RED WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE FRONT SAM CONTROL MODULE W/ FUSE, FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 21 FUSE 21, RELAY MODULE (LEFT REAR OF ENGINE COMPT) HOT W/ CIRCUIT NCA WIRE RED/BLU WIRE SIG SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT (UNDER FRONT OF CENTER CONSOLE) VIO/GRN WIRE WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT (UNDER FRONT PASSENGER'S SEAT)

4 5 6 GND SIG 30 BELT TENSION SENSOR BELT TENSION SENSOR (INTEGRAL TO FRONT PASSENGER'S SEAT BELT ANCHOR) BLK/RED WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE FRONT SAM CONTROL MODULE W/ FUSE, FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 21 FUSE 21, RELAY MODULE (LEFT REAR OF ENGINE COMPT) HOT W/ CIRCUIT NCA WIRE RED/BLU WIRE SIG SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT (UNDER FRONT OF CENTER CONSOLE) VIO/GRN WIRE WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT (UNDER FRONT PASSENGER'S SEAT)

BLK/VIO WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE EXCEPT CALIFORNIA FUEL PUMP RELAY FUSE 42 GRY/BLU WIRE HEAT EXCHANGER SHUTOFF VALVE LEFT FUEL LEVEL INDICATOR SENSOR LEFT FUEL LEVEL INDICATOR SENSOR (IN LEFT SIDE OF FUEL TANK) LEFT SWITCHABLE ENGINE MOUNT LEFT SWITCHABLE ENGINE MOUNT (LEFT BOTTOM REAR SIDE OF ENGINE COMPT) NCA WIRE ORG/ WIRE PNK/RED WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE REAR SAM CONTROL MODULE W/ FUSE/ RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RELAY MODULE (RIGHT SIDE OF LUGGAGE COMPT) RIGHT FUEL LEVEL INDICATOR SENSOR RIGHT FUEL LEVEL INDICATOR SENSOR (IN RIGHT SIDE OF FUEL TANK) RIGHT SWITCHABLE ENGINE MOUNT RIGHT SWITCHABLE ENGINE MOUNT (RIGHT BOTTOM REAR SIDE OF ENGINE COMPT) SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT (UNDER FRONT OF CENTER CONSOLE) TG L TG R VIO BRN/ WIRE VIO WIRE VIO/GRN WIRE VIO/WHT WIRE VIO/YEL WIRE W/ BLUETEC DIESEL EXHAUST TREATMENT (SCR) W/O BLUETEC DIESEL EXHAUST TREATMENT (SCR)