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Home >> Mercedes Benz >> 2021 >> E450 Base, 2D Convertible >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System, Equipment & Instruments - 238 Chassis (6 Of 6) >> Wiring Diagrams >> Electrical Function Schematic, Blind Spot Assistant >> Electrical Function Schematic, Blind Spot Assistant - PE54.71-P-2051-97DCA

Electrical Function Schematic, Blind Spot Assistant - PE54.71-P-2051-97DCA

Model 238 up to model year 2021 with code 22P (Lane tracking package) 

Model 238 up to model year 2021 with code 234 (Blind Spot Assist) 

Code: Designation: Position:
1 Circuit 15, status 23K
1 Circuit 15, status 28K
10 Blind Spot Assist warning indicator, request 23G
10 Blind Spot Assist warning indicator, request 24L
10 Blind Spot Assist warning indicator, request 34G
11 Blind Spot Assist warning indicator, actuation 37J
12 Instrument cluster message, request 18C
12 Instrument cluster message, request 23G
12 Instrument cluster message, request 24L
13 Combination switch, status 22B
13 Combination switch, status 24D
13 Combination switch, status 22H
13 Combination switch, status 27J
14 Speaker, actuation 13B
15 Gear range, status 20H
15 Gear range, status 21F
16 Manual transmission main shifter shaft position sensor, signal 18H
18 Reverse gear, status 22H
18 Reverse gear, status 26J
18 Reverse gear, status 21F
19 Operation, signal 17E
19 Operation, signal 17D
19 Operation, signal 19E
19 Operation, signal 23D
19 Operation, signal 26D
19 Operation, signal 30D
19 Operation, signal 30B
19 Operation, signal 26B
19 Operation, signal 17E
2 Blind spot assist, status 23J
2 Blind spot assist, status 27K
2 Blind spot assist, status 22E
3 Engine running, signal 22F
3 Engine running, signal 18G
3 Engine running, signal 23J
3 Engine running, signal 27K
4 Drivetrain operational, signal 22F
4 Drivetrain operational, signal 17G
4 Drivetrain operational, signal 23H
4 Drivetrain operational, signal 27K
5 Wheel rotation direction, signal 24E
5 Wheel rotation direction, signal 23H
5 Wheel rotation direction, signal 26K
6 Wheel speed, signal 25E
6 Wheel speed, signal 22K
6 Wheel speed, signal 28J
7 Steering wheel angle sensor, signal 24B
8 Steering wheel angle, signal 22J
8 Steering wheel angle, signal 27J
8 Steering wheel angle, signal 24D
9 Trailer recognition, status 22J
9 Trailer recognition, status 24G
9 Trailer recognition, status 27J
A1 Instrument cluster 15C
A105 Touchpad 9J
A105 Touchpad 8C
A26/17 Head unit 18D
A40/9 Audio/COMAND control panel 8G
B25/20 Driver hands-free system microphone 15E
B79/3 Manual transmission main shifter shaft position sensor 15H
B92/11 Left outer rear bumper integrated radar sensor 29K
B92/6 Right outer rear bumper integrated radar sensor 22K
CAN A Telematics CAN 15D
CAN B Interior CAN 25H
CAN B Interior CAN 29H
CAN B Interior CAN 29F
CAN C1 Drive train CAN 18K
CAN C1 Drive train CAN 16G
CAN HMI User interface CAN 20C
CAN HMI User interface CAN 20E
CAN LR Steering wheel CAN 27D
CAN PER Peripherals CAN 22H
CAN PER Peripherals CAN 26L
CAN PER Peripherals CAN 25K
Code 446 Touchpad only 7C
Code 448 Touchpad 7J
Code 550 Trailer hitch 31G
Flex E Chassis FlexRay 21F
Flex E Chassis FlexRay 29F
Flex E Chassis FlexRay 23C
H4/61 Instrument cluster speaker 12B
LIN A3 LCP LIN 5F
LIN E1 Steering LIN 27B
M21/1 Left outside mirror 38H
M21/1e2 Left blind spot assistant warning indicator 38H
M21/2 Right outside mirror 38J
M21/2e2 Right blind spot assistant warning indicator 38J
N127 Drivetrain control unit 19F
N135 Steering wheel electronics 30C
N135 Steering wheel electronics 30A
N28/1 Trailer recognition control unit 31H
N3/10 ME-SFI [ME] control unit 12G
N3/9 CDI control unit 12E
N30/4 Electronic Stability Program control unit 37D
N49 Steering wheel angle sensor 25B
N69/1 Left front door control unit 35H
N69/2 Right front door control unit 35H
N72/1 Upper control panel control unit 2E
N72/1s58 Vehicle button 3E
N73 Electronic ignition switch control unit 23E
N80 Steering column module control unit 23A
S163/2s10 Head unit finger navigation pad 33D
S163/2s10 Head unit finger navigation pad 33A
S163/2s13 "Back" button 33D
S163/2s13 "Back" button 33B
S4 Combination switch 22C
U1056 Valid except code 446 (Touchpad only) 7F
U24 Valid for manual transmission 15H
U25 Valid for automatic transmission 14J
U74 Valid for diesel engines 11E
U75 Valid for gasoline engines 11G
Y3/8n4 Fully integrated transmission control, control unit 15K
G15470628Courtesy of MERCEDES-BENZ USA
G15470629Courtesy of MERCEDES-BENZ USA
G15470630Courtesy of MERCEDES-BENZ USA