Attention Assist Electrical Function Schematic - PE54.71-P-2054-97FBB
WARNING: This page is about a different car, the 2023 Mercedes-Benz GLC300, 2022 Mercedes-Benz GLC300, 2021 Mercedes-Benz GLC300, 2020 Mercedes-Benz GLC350e, and 2020 Mercedes-Benz GLC300. However, it is still accessible from the selected car via links, so may be relevant.
Model 205
as of model year 2019
Model 253 (except 253.99)
as of model year 2020
Model 253.99
| Code: | Designation: | Position: |
|---|---|---|
| 1 | Engine running, signal | 19J |
| 1 | Engine running, signal | 23F |
| 10 | High-speed video link video signal data transfer, signal | 9J |
| 11 | Time, signal | 17D |
| 11 | Time, signal | 18H |
| 12 | Light sensor, status | 13G |
| 12 | Light sensor, status | 16F |
| 12 | Light sensor, status | 18H |
| 12 | Light sensor, status | 15H |
| 13 | Steering wheel angle sensor, signal | 30K |
| 14 | Steering wheel angle, signal | 20K |
| 15 | Steering wheel velocity, signal | 20K |
| 16 | Speed, turn rate and lateral acceleration, signal | 17K |
| 17 | Operation, signal | 16E |
| 17 | Operation, signal | 18H |
| 17 | Operation, signal | 19C |
| 17 | Operation, signal | 30H |
| 17 | Operation, signal | 30D |
| 17 | Operation, signal | 10G |
| 17 | Operation, signal | 8D |
| 17 | Operation, signal | 9F |
| 17 | Operation, signal | 7D |
| 17 | Operation, signal | 6D |
| 17 | Operation, signal | 7G |
| 18 | Steering column adjustment switch, status | 28K |
| 18 | Steering column adjustment switch, status | 21K |
| 19 | Combination switch, status | 28K |
| 19 | Combination switch, status | 21K |
| 2 | Drivetrain operational, signal | 19H |
| 2 | Drivetrain operational, signal | 23F |
| 3 | ATTENTION ASSIST, status | 16E |
| 3 | ATTENTION ASSIST, status | 18J |
| 3 | ATTENTION ASSIST, status | 23A |
| 4 | Instrument cluster message, request | 21B |
| 4 | Instrument cluster message, request | 18F |
| 5 | Warning message issue, request | 20B |
| 5 | Warning message issue, request | 18F |
| 5 | Warning message issue, request | 10G |
| 6 | Warning tone, request | 20B |
| 6 | Warning tone, request | 18G |
| 7 | Speaker, actuation | 20C |
| 8 | Multifunction steering wheel button group, signal | 30H |
| 8 | Multifunction steering wheel button group, signal | 20K |
| 8 | Multifunction steering wheel button group, signal | 30D |
| 8 | Multifunction steering wheel button group, signal | 18C |
| 8 | Multifunction steering wheel button group, signal | 20B |
| 9 | Audio/COMAND® display, actuation | 7J |
| A1 | Instrument cluster | 22B |
| A105 | Touchpad | 6A |
| A105 | Touchpad | 11B |
| A26/17 | Head unit | 8F |
| A40/8 | Audio/COMAND® display | 8K |
| A40/9 | Audio/COMAND® control panel | 8B |
| B25/20 | Driver hands-free system microphone | 5H |
| B38/2 | Rain/light sensor with additional functions | 16G |
| B38/2b2 | Light sensor | 14H |
| CAN A | Telematics CAN | 8J |
| CAN A | Telematics CAN | 10E |
| CAN B | Interior CAN | 13F |
| CAN C1 | Drive train CAN | 23G |
| CAN H | Vehicle dynamics CAN | 15K |
| CAN HMI | User interface CAN | 13E |
| CAN HMI | User interface CAN | 18B |
| CAN HMI | User interface CAN | 4G |
| CAN HMI | User interface CAN | 4A |
| CAN HMI | User interface CAN | 12A |
| CAN HMI | User interface CAN | 19A |
| CAN LR | Steering wheel CAN | 29G |
| Code 275 | Memory package | 24K |
| Code 443 | Steering wheel heater | 24L |
| Code 446 | Touchpad only | 4A |
| Code 448 | Touchpad | 10A |
| Code 531 | COMAND® APS | 5H |
| Flex E | Chassis FlexRay | 21K |
| Flex E | Chassis FlexRay | 17G |
| Flex E | Chassis FlexRay | 20E |
| Flex E | Chassis FlexRay | 20D |
| Flex E | Chassis FlexRay | 27D |
| Flex E | Chassis FlexRay | 26K |
| H4/61 | Instrument cluster speaker | 20C |
| HSVL | High-speed video link | 9J |
| LIN A3 | LCP LIN | 6F |
| LIN A3 | LCP LIN | 5D |
| LIN A3 | LCP LIN | 5E |
| LIN B16 | Rain and light sensor LIN | 14G |
| N10/6 | Front SAM control unit | 12G |
| N127 | Drivetrain control unit | 23D |
| N135 | Steering wheel electronics | 31E |
| N2/10 | Supplemental restraint system control unit | 14K |
| N3/10 | ME-SFI [ME] control unit | 22H |
| N3/9 | CDI control unit | 24H |
| N30/4 | Electronic Stability Program control unit | 18J |
| N49 | Steering wheel angle sensor | 31K |
| N72/1 | Upper control panel control unit | 2E |
| N72/1s58 | Vehicle button | 4F |
| N72/4 | Left lower control panel | 2A |
| N72/5 | Right lower control panel | 3A |
| N73 | Electronic ignition switch control unit | 17D |
| N80 | Steering column module control unit | 29J |
| S163/1 | Instrument cluster multifunction steering wheel button group | 28B |
| S163/1s10 | Instrument cluster finger navigation pad | 28B |
| S163/2 | Head unit multifunction steering wheel button group | 31C |
| S163/2s10 | Head unit finger navigation pad | 31B |
| S163/2s13 | "Back" button | 31B |
| S4 | Combination switch | 27K |
| S59 | Steering column adjustment switch | 26L |
| S59/1s1 | Steering column adjustment switch | 26L |
| U1043 | Valid without code (443) Steering wheel heater | 24L |
| U1056 | Valid except code 446 (Touchpad only) | 7A |
| U74 | Valid for diesel engines | 23G |
| U75 | Valid for gasoline engines | 21G |