Mercedes-Benz E-class W213/S213/C238/A238 facelift (2020-2024) nca Wiring diagrams
This page contains all the electrical diagrams for the component. nca, in which he is found in the car Mercedes-Benz E-class W213/S213/C238/A238 facelift (2020-2024). You can view various wiring diagrams where this component is used, as well as go to more detailed diagrams to see the complete connection and interaction in the system. All diagrams have links to quickly jump to the corresponding section with the component for easy viewing..
nca wiring diagram (131 of 356)
AAG
ARMREST HEATER CONTROL UNIT
BLK WIRE
BLU WIRE
BRN WIRE
BRN/RED WIRE
CAN B H
CAN B L
COMPUTER DATA LINES SYSTEM
DRIVER-SIDE FUSE, RELAY MODULE
FUSE 203
FUSE 302
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
NCA WIRE
PASSENGER-SIDE A-PILLAR FUSE BOX
REAR FUSE, RELAY MODULE
REAR SAM CONTROL UNIT (RIGHT SIDE OF LUGGAGE COMPT)
RED WIRE
RED/BLU WIRE
RED/GRN WIRE
RIGHT FRONT CENTER CONSOLE ARMREST HEATING ELEMENT
RIGHT FRONT DOOR ARMREST HEATING ELEMENT
RIGHT FRONT DOOR CONTROL UNIT
SIG
SIG TEMP
TEMP
Go to component -> Armrest heated circuit, convertible -> NCA WIRE
nca wiring diagram (132 of 356)
AAG
ARMREST HEATER CONTROL UNIT
BLK WIRE
BLU WIRE
BRN WIRE
BRN/RED WIRE
CAN B H
CAN B L
COMPUTER DATA LINES SYSTEM
DRIVER-SIDE FUSE, RELAY MODULE
FUSE 203
FUSE 302
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
NCA WIRE
PASSENGER-SIDE A-PILLAR FUSE BOX
REAR FUSE, RELAY MODULE
REAR SAM CONTROL UNIT (RIGHT SIDE OF LUGGAGE COMPT)
RED WIRE
RED/BLU WIRE
RED/GRN WIRE
RIGHT FRONT CENTER CONSOLE ARMREST HEATING ELEMENT
RIGHT FRONT DOOR ARMREST HEATING ELEMENT
RIGHT FRONT DOOR CONTROL UNIT
SIG
SIG TEMP
TEMP
Go to component -> Armrest heated circuit, coupe -> NCA WIRE
nca wiring diagram (133 of 356)
BRN WIRE
BRN/GRN WIRE
BRN/YEL WIRE
LEFT FRONT BACKREST ADJUSTMENT SWITCH
LEFT FRONT BACKREST SEAT VENTILATION MOTORS
LEFT FRONT HEAD RESTRAINT ADJUSTMENT SWITCH
LEFT FRONT SEAT ADJUSTMENT SWITCH GROUP
LEFT FRONT SEAT CUSHION LENGTH SWITCH
LEFT FRONT SEAT CUSHION SEAT VENTILATION MOTORS
LEFT FRONT SEAT FORE/AFT ADJUSTMENT SWITCH
LEFT FRONT SEAT HEIGHT ADJUSTMENT SWITCH
LEFT FRONT SEAT INCLINATION ADJUSTMENT SWITCH
NCA WIRE
RED WIRE
RED/GRN WIRE
RED/WHT WIRE
RED/YEL WIRE
RIGHT FRONT BACKREST SEAT VENTILATION MOTORS
RIGHT FRONT SEAT CLIMATE CONTROL SWITCH GROUP RIGHT FRONT SEAT HEATER SWITCH
RIGHT FRONT SEAT CUSHION SEAT VENTILATION MOTORS
RIGHT FRONT SEAT VENTILATION SWITCH
RIGHT SEAT ADJUSTMENT UNIT SWITCH
VIO WIRE
Go to component -> Front ventilation & heated seat circuit, convertible w/ memory (2 of 3) -> NCA WIRE
nca wiring diagram (134 of 356)
BLU WIRE
BRN 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
FRONT PASSENGER SEAT CONTROL UNIT
NCA WIRE
RED WIRE
RED/GRN WIRE
RED/WHT WIRE
RED/YEL WIRE
RIGHT FRONT BACKREST ADJUSTMENT SWITCH
RIGHT FRONT DOOR CONTROL UNIT
RIGHT FRONT HEAD RESTRAINT ADJUSTMENT SWITCH
RIGHT FRONT SEAT ADJUSTABLE SEAT CUSHION LENGTH HEATER PAD
RIGHT FRONT SEAT ADJUSTMENT SWITCH GROUP
RIGHT FRONT SEAT BACKREST BOLSTER HEATER PAD
RIGHT FRONT SEAT BACKREST HEATER PAD
RIGHT FRONT SEAT BACKREST SIDE BOLSTER HEATER PAD TEMPERATURE SENSOR
RIGHT FRONT SEAT CUSHION HEATER PAD
RIGHT FRONT SEAT CUSHION LENGTH SWITCH
RIGHT FRONT SEAT CUSHION SIDE BOLSTER HEATER PAD
RIGHT FRONT SEAT CUSHION SIDE BOLSTER HEATER PAD TEMPERATURE SENSOR
RIGHT FRONT SEAT FORE/AFT ADJUSTMENT SWITCH
RIGHT FRONT SEAT HEIGHT ADJUSTMENT SWITCH
RIGHT FRONT SEAT INCLINATION ADJUSTMENT SWITCH
SIG
VIO WIRE
W/ SEAT HEATER PLUS
W/O SEAT HEATER PLUS
Go to component -> Front ventilation & heated seat circuit, convertible w/ memory (3 of 3) -> NCA WIRE
nca wiring diagram (135 of 356)
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
VIO WIRE
W/ SEATING COMFORT PACKAGE
Go to component -> Front ventilation & heated seat circuit, convertible w/o memory (1 of 2) -> NCA WIRE
nca wiring diagram (136 of 356)
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
VIO WIRE
W/ SEATING COMFORT PACKAGE
Go to component -> Front ventilation & heated seat circuit, coupe w/o memory (1 of 2) -> NCA WIRE
nca wiring diagram (137 of 356)
BRN WIRE
BRN/RED WIRE
BRN/WHT WIRE
BRN/YEL WIRE
CAN B H
CAN B L
COMPUTER DATA LINES SYSTEM
FUSE 302
HOT AT ALL TIMES
NCA WIRE
PASSENGER-SIDE A-PILLAR FUSE BOX
RED WIRE
RED/WHT WIRE
RED/YEL WIRE
RIGHT FRONT BACKREST SEAT VENTILATION MOTORS
RIGHT FRONT DOOR CONTROL UNIT
RIGHT FRONT SEAT ADJUSTABLE SEAT CUSHION LENGTH HEATER PAD
RIGHT FRONT SEAT BACKREST HEATER PAD
RIGHT FRONT SEAT CLIMATE CONTROL SWITCH GROUP
RIGHT FRONT SEAT CUSHION HEATER PAD
RIGHT FRONT SEAT CUSHION SEAT VENTILATION MOTORS
RIGHT FRONT SEAT HEATER SWITCH
RIGHT FRONT SEAT VENTILATION SWITCH
VIO WIRE
W/ SEATING COMFORT PACKAGE
Go to component -> Front ventilation & heated seat circuit, coupe w/o memory (2 of 2) -> NCA WIRE
nca wiring diagram (138 of 356)
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
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 CUSHION HEATER PAD
LEFT FRONT SEAT CUSHION SIDE BOLSTER HEATER PAD
LEFT FRONT SEAT CUSHION SIDE BOLSTER HEATER PAD TEMPERATURE SENSOR
MOT (+) MOT GND
MOT GND/(+)
NCA WIRE
PASSENGER-SIDE A-PILLAR FUSE BOX
RED WIRE
RED/BLK WIRE
RED/GRN WIRE
RED/WHT WIRE
RED/YEL WIRE
SIG
VIO WIRE
W/ SEAT HEATER PLUS
W/O SEAT HEATER PLUS
Go to component -> Front ventilation & heated seat circuit, sedan w/ memory (1 of 3) -> NCA WIRE
nca wiring diagram (139 of 356)
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
VIO WIRE
W/ SEATING COMFORT PACKAGE
Go to component -> Front ventilation & heated seat circuit, sedan w/o memory (1 of 2) -> NCA WIRE
nca wiring diagram (140 of 356)
BRN WIRE
BRN/RED WIRE
BRN/WHT WIRE
BRN/YEL WIRE
CAN B H
CAN B L
COMPUTER DATA LINES SYSTEM
FUSE 302
HOT AT ALL TIMES
NCA WIRE
PASSENGER-SIDE A-PILLAR FUSE BOX
RED WIRE
RED/WHT WIRE
RED/YEL WIRE
RIGHT FRONT BACKREST SEAT VENTILATION MOTORS
RIGHT FRONT DOOR CONTROL UNIT
RIGHT FRONT SEAT ADJUSTABLE SEAT CUSHION LENGTH HEATER PAD
RIGHT FRONT SEAT BACKREST HEATER PAD
RIGHT FRONT SEAT CLIMATE CONTROL SWITCH GROUP
RIGHT FRONT SEAT CUSHION HEATER PAD
RIGHT FRONT SEAT CUSHION SEAT VENTILATION MOTORS
RIGHT FRONT SEAT HEATER SWITCH
RIGHT FRONT SEAT VENTILATION SWITCH
VIO WIRE
W/ SEATING COMFORT PACKAGE
Go to component -> Front ventilation & heated seat circuit, sedan w/o memory (2 of 2) -> NCA WIRE
