Trailer Recognition Control Unit Wiring Diagram - PE31.19-P-2101-97FCA
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 253 (except 253.99) as of model year 2020
with code 550 (Trailer coupling)
Control unit N28/1
| Code: | Designation: | Position: |
|---|---|---|
| AO | Use of wiring diagrams | 113L |
| A63 | Trailer hitch release | 31L |
| CAN B | Interior CAN | 63K |
| Code 460 | Canada version | 34D |
| Code 460 | Canada version | 43D |
| Code 460 | Canada version | 69D |
| Code 460 | Canada version | 76D |
| Code 460 | Canada version | 82D |
| Code 494 | USA version | 34D |
| Code 494 | USA version | 43D |
| Code 494 | USA version | 69D |
| Code 494 | USA version | 76E |
| Code 494 | USA version | 82E |
| Code L | LEFT-HAND DRIVE | 75D |
| Code R | RIGHT-HAND DRIVE | 81D |
| F1/3 | Passenger-side A-pillar fuse box | 55L |
| F1/3f307 | Fuse 307 | 54L |
| K40/5 | Rear fuse and relay module | 21L |
| K40/5 | Rear fuse and relay module | 12L |
| K40/5f407 | Fuse 407 | 10L |
| K40/5f444 | Fuse 444 | 20L |
| K40/5f445 | Fuse 445 | 15L |
| K40/5f446 | Fuse 446 | 19L |
| K40/5f447 | Fuse 447 | 17L |
| K40/5f448 | Fuse 448 | 18L |
| K40/5f452 | Fuse 452 | 8L |
| K40/5f461 | Fuse 461 | 11L |
| K40/5f468 | Fuse 468 | 6L |
| K40/5f471 | Fuse 471 | 7L |
| N10/8 | Rear SAM control unit | 62L |
| N28/1 | Trailer recognition control unit | 4A |
| N28/1 | Trailer recognition control unit | 12A |
| N28/1 | Trailer recognition control unit | 20A |
| N28/1 | Trailer recognition control unit | 28A |
| N28/1 | Trailer recognition control unit | 36A |
| N28/1 | Trailer recognition control unit | 44A |
| N28/1 | Trailer recognition control unit | 52A |
| N28/1 | Trailer recognition control unit | 60A |
| N28/1 | Trailer recognition control unit | 68A |
| N28/1 | Trailer recognition control unit | 74A |
| N28/1 | Trailer recognition control unit | 91A |
| N28/1 | Trailer recognition control unit | 104A |
| N69/1 | Left front door control unit | 79A |
| N69/2 | Right front door control unit | 85A |
| S142/2 | Trunk lid/liftgate fully electric trailer hitch switch | 72L |
| S142/3 | Driver door fully electric trailer hitch switch | 84L |
| S142/3 | Driver door fully electric trailer hitch switch | 77L |
| W15/5 | Left front footwell ground point | 53L |
| W3/11 | Left rear wheel well ground point | 69L |
| W3/8 | Right rear wheel well ground point | 42L |
| W3/8 | Right rear wheel well ground point | 49L |
| W3/8 | Right rear wheel well ground point | 24E |
| X58 | Trailer socket | 38L |
| X58/11 | Trailer socket (7-pin) | 46L |
| X58/28 | Electric Brake Control electrical connector | 51L |
| X58/33 | Vehicle interior/trailer hitch electrical connector | 49H |
| X58/33 | Vehicle interior/trailer hitch electrical connector | 41H |
| Z58/8z1 | Trailer hitch circuit 31 connector sleeve | 30G |