Mercedes-Benz E-class W213/S213/C238/A238 (2016-2021) fuse 203 Wiring diagrams

AAG ARMREST HEATER CONTROL UNIT BLK WIRE BLU/GRY WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FUSE 203 FUSE 301 FUSE 302 FUSE 406 FUSE 425 GRN WIRE GRN/GRY WIRE HOT AT ALL TIMES LEFT FRONT CENTER CONSOLE ARMREST HEATING ELEMENT LEFT FRONT DOOR ARMREST HEATING ELEMENT LEFT FRONT DOOR CONTROL UNIT LEFT REAR DOOR CONTROL UNIT LEFT REAR SEAT ARMREST HEATING ELEMENT LEFT REAR SEAT ARMREST HEATING ELEMENT TEMPERATURE SENSOR LIN NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RIGHT FRONT CENTER CONSOLE ARMREST HEATING ELEMENT RIGHT FRONT DOOR ARMREST HEATING ELEMENT RIGHT FRONT DOOR CONTROL UNIT RIGHT REAR DOOR CONTROL UNIT RIGHT REAR SEAT ARMREST HEATING ELEMENT RIGHT REAR SEAT ARMREST HEATING ELEMENT TEMPERATURE SENSOR SIG

AMBIENT LAMP AUTOMATIC DIMMING MIRROR BLK WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FORWARD AUTOMATIC DIMMING MIRROR LIGHT SENSOR FRONT SAM CONTROL UNIT FUSE 203 FUSE 302 FUSE 305 FUSE 316 GARAGE DOOR OPENER GARAGE DOOR OPENER BUTTON 1 GARAGE DOOR OPENER BUTTON 2 GARAGE DOOR OPENER BUTTON 3 GARAGE DOOR OPENER INDICATOR LAMP GRN WIRE HOT AT ALL TIMES INSIDE REAR VIEW MIRROR INSIDE REAR VIEW MIRROR DIMMING LEFT FRONT DOOR CONTROL UNIT LEFT OUTSIDE MIRROR LEFT READING LAMP NCA WIRE OVERHEAD CONSOLE OVERHEAD CONTROL PANEL CONTROL UNIT PASSENGER-SIDE A-PILLAR FUSE BOX RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS REARWARD AUTOMATIC DIMMING MIRROR LIGHT SENSOR RED WIRE RED/WHT WIRE RED/YEL WIRE RGB-LIN RIGHT FRONT DOOR CONTROL UNIT RIGHT OUTSIDE MIRROR RIGHT READING LAMP SIG VIO WIRE YEL WIRE

BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN PER H CAN PER L CAN-B H AAG COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FUSE 203 FUSE 302 GRN WIRE GRN/WHT WIRE HECKD HOT AT ALL TIMES LEFT BLIND SPOT ASSISTANT WARNING INDICATOR LEFT FRONT DOOR CONTROL UNIT LEFT OUTER REAR BUMPER INTEGRATED RADAR SENSOR LEFT OUTSIDE MIRROR NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX REAR SAM CONTROL UNIT RED WIRE RIGHT BLIND SPOT ASSISTANT WARNING INDICATOR RIGHT FRONT DOOR CONTROL UNIT RIGHT OUTER REAR BUMPER INTEGRATED RADAR SENSOR RIGHT OUTSIDE MIRROR

BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE DRIVER-SIDE POWER WINDOW, OUTSIDE MIRROR ADJUSTMENT SWITCH GROUP FUSE 203 FUSE 302 GRN WIRE HOT AT ALL TIMES LEFT FRONT DOOR CONTROL UNIT LEFT OUTSIDE MIRROR NCA WIRE OUTSIDE MIRROR FOLD-IN/FOLD-OUT ELECTRIC MOTOR OUTSIDE MIRROR FOLD-IN/FOLD-OUT SWITCH PASSENGER-SIDE A-PILLAR FUSE BOX RED WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT OUTSIDE MIRROR SIG YEL/GRN WIRE

BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM COUPE CONVERTIBLE DRIVER SEAT CONTROL UNIT DRIVER SEAT HEATER CONTROL UNIT DRIVER-SIDE FUSE, RELAY MODULE FRONT PASSENGER SEAT CONTROL UNIT FRONT PASSENGER SEAT HEATER CONTROL UNIT FUSE 203 FUSE 302 FUSE 306 FUSE 453 HOT AT ALL TIMES LEFT FRONT DOOR CONTROL UNIT LEFT FRONT SEAT BACKREST HEATER PAD LEFT FRONT SEAT BACKREST HEATER PAD TEMPERATURE SENSOR LEFT FRONT SEAT CLIMATE CONTROL SWITCH GROUP LEFT FRONT SEAT CUSHION HEATER PAD LEFT FRONT SEAT HEATER SWITCH LEFT FRONT SEAT SITTING SURFACE HEATER PAD TEMPERATURE SENSOR NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX REAR FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT SEAT BACKREST HEATER PAD RIGHT FRONT SEAT BACKREST HEATER PAD TEMPERATURE SENSOR RIGHT FRONT SEAT CLIMATE CONTROL SWITCH GROUP RIGHT FRONT SEAT CUSHION HEATER PAD RIGHT FRONT SEAT HEATER SWITCH RIGHT FRONT SEAT SITTING SURFACE HEATER PAD TEMPERATURE SENSOR SEDAN WAGON SIG VIO WIRE

BLK/WHT WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM COUPE CONVERTIBLE DRIVER SEAT CONTROL UNIT DRIVER-SIDE FUSE, RELAY MODULE FUSE 203 FUSE 302 FUSE 303 FUSE 304 HOT AT ALL TIMES LEFT FRONT DOOR CONTROL UNIT LEFT FRONT SEAT ADJUSTABLE SEAT CUSHION LENGTH HEATER PAD LEFT FRONT SEAT BACKREST HEATER PAD LEFT FRONT SEAT BACKREST SIDE BOLSTER HEATER PAD LEFT FRONT SEAT BACKREST SIDE BOLSTER HEATER PAD TEMPERATURE SENSOR LEFT FRONT SEAT CLIMATE CONTROL SWITCH GROUP LEFT FRONT SEAT HEATER SWITCH LEFT FRONT SEAT CUSHION HEATER PAD LEFT FRONT SEAT CUSHION SIDE BOLSTER HEATER PAD LEFT FRONT SEAT CUSHION SIDE BOLSTER HEATER PAD TEMPERATURE SENSOR LEFT FRONT SEAT VENTILATION SWITCH LEFT SEAT SETTING SWITCH NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX RED WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE SEDAN WAGON SIG VIO WIRE W/ SEAT HEATER PLUS W/O SEAT HEATER PLUS

BLU WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L CAN-B H AAG COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FRONT SEAT HEATER/SEAT VENTILATION CONTROL UNIT FUSE 203 FUSE 306 HOT AT ALL TIMES LEFT FRONT BACKREST SEAT VENTILATION MOTORS LEFT FRONT DOOR CONTROL UNIT LEFT FRONT SEAT ADJUSTABLE SEAT CUSHION LENGTH HEATER PAD LEFT FRONT SEAT BACKREST HEATER PAD LEFT FRONT SEAT CLIMATE CONTROL SWITCH GROUP LEFT FRONT SEAT CUSHION HEATER PAD LEFT FRONT SEAT CUSHION SEAT VENTILATION MOTORS LEFT FRONT SEAT HEATER SWITCH LEFT FRONT SEAT VENTILATION SWITCH NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX REAR SAM CONTROL UNIT RED WIRE RED/BLK WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SEDAN WAGON SEDAN, WAGON COUPE, CONVERTIBLE VIO WIRE W/ SEATING COMFORT PACKAGE

BRN WIRE BRN/GRN WIRE BRN/RED WIRE CAN B H CAN B L CLIMATE CONTROL OPERATING UNIT COMPUTER DATA LINES SYSTEM COUPE CONVERTIBLE, SEDAN DRIVER-SIDE FUSE, RELAY MODULE FUSE 203 FUSE 209 FUSE 302 FUSE 474 FUSE 7 GRY/RED WIRE HEATED REAR WINDOW RELAY HECKR HOT AT ALL TIMES LEFT FRONT DOOR CONTROL UNIT LEFT OUTSIDE MIRROR MIRROR HEATER NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT (RIGHT REAR OF LUGGAGE COMPT) REAR WINDOW HEATER REAR WINDOW HEATER BUTTON REAR WINDOW INTERFERENCE SUPPRESSION CAPACITOR RED WIRE RED/BLU WIRE RED/WHT WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT OUTSIDE MIRROR SEDAN, WAGON COUPE, CONVERTIBLE VEHICLE INTERIOR PREFUSE BOX VIO/GRN WIRE WAGON

AIR BODY CONTROL RELAY ANALOG CLOCK AUDIO/ COMAND DISPLAY BLK/RED WIRE BRN WIRE CLIMATE CONTROL OPERATING UNIT, UPPER CONTROL PANEL CONTROL UNIT CLIMATE CONTROL UNIT COOLANT PUMP RELAY CPC RELAY DIGITAL INSTRUMENT CLUSTER FULL DISPLAY FAN MOTOR ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT TERMINAL 15 RELAY EXTERIOR LIGHTS SWITCH EXTERNAL CD DRIVE FROM ENGINE COMPARTMENT PREFUSE BOX (DIAGRAM 1 OF 5) FRONT SAM CONTROL UNIT FUSE 110 FUSE 111 FUSE 117 FUSE 121 FUSE 123 FUSE 125 FUSE 126 FUSE 128 FUSE 129 FUSE 131 FUSE 133 FUSE 200 FUSE 201 FUSE 202 FUSE 203 FUSE 204 FUSE 205 FUSE 206 FUSE 207 FUSE 208 FUSE 209 FUSE 210 FUSE 211 FUSE 213 FUSE 220 LEFT FRONT DOOR CONTROL UNIT LEFT FRONT LAMP UNIT, RIGHT FRONT LAMP UNIT LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR ME-SFI (ME) CONTROL UNIT, DRIVETRAIN CONTROL UNIT, ALL WHEEL DRIVE CONTROL UNIT N/A OIL PUMP RELAY PARK PAWL CAPACITOR PNK/RED WIRE RED WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RES FUSE 112 RES FUSE 120 RES FUSE 124 RES FUSE 130 RES FUSE 212 RES FUSE 214 RES FUSE 215 RES FUSE 216 RES FUSE 217 RES FUSE 218 RES FUSE 219 RESERVE SOLENOID SWITCH RELAY STARTER CIRCUIT 50 RELAY STARTER TERMINAL 15 RELAY STEERING COLUMN MODULE CONTROL UNIT USB CONNECTOR 0 W/ PRE- SAFE WIPER MOTOR WIPER PARK POSITION HEATER RELAY

BLK WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/ORG WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE BRN/ORG WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE CAN B H CAN B L CLOSE COMPUTER DATA LINES SYSTEM DRIVER TRUNK LID/ LIFTGATE CONTROL BUTTON DRIVER-SIDE FUSE, RELAY MODULE FUSE 203 FUSE 435 GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE HOT AT ALL TIMES LEFT FRONT DOOR CONTROL UNIT LIFTGATE INSIDE DOOR HANDLE PNK WIRE REAR FUSE, RELAY MODULE REAR OF LUGGAGE COMPT) REAR SAM CONTROL UNIT RED WIRE RED/VIO WIRE RED/WHT WIRE SEPARATE TRUNK LID LOCK SWITCH SIG SIG (+) COC TRUNK LID CONTROL UNIT TRUNK LID EMERGENCY OPENING SWITCH TRUNK LID RELEASE BUTTON (W/ REMOTE TRUNK OPENING (RTO)) TRUNK LID/ LIFTGATE CENTRAL LOCKING MOTOR TRUNK LID/ LIFTGATE CONTROL WARNING BUZZER TRUNK LID/ LIFTGATE EXTERNAL OPERATION SWITCH TRUNK LID/ LIFTGATE LOCKING ELEMENT TRUNK LID/LIFTGATE CONTROL DRIVE UNIT WHT WIRE WHT/GRN WIRE