Trailer Recognition Control Unit Wiring Diagram - PE31.19-P-2101-97NBA
MODEL 166 as of model year 2016 with CODE 550 (Trailer coupling) Control unit N28/1
MODEL 292 with CODE 550 (Trailer coupling) Control unit N28/1
| Code: | Designation: | Position: |
|---|---|---|
| A0 | Color code key | 64L |
| A63/2 | Fully electric trailer hitch swivel unit | 44L |
| CAN B | Interior CAN | 20K |
| Code 494 | USA version | 9C |
| Code 494 | USA version | 22C |
| Code 494 | USA version | 5C |
| Code 494 | USA version | 10C |
| Code 494 | USA version | 35C |
| Code 494 | USA version | 52A |
| F4 | Rear fuse box | 4L |
| F4 | Rear fuse box | 13L |
| F4 | Rear fuse box | 24L |
| F4f115 | Fuse 115 | 14L |
| F4f124 | Fuse 124 | 7L |
| F4f124 | Fuse 124 | 23L |
| F4f125 | Fuse 125 | 2L |
| F4f126 | Fuse 126 | 8L |
| F4f128 | Fuse 128 | 3L |
| F4f130 | Fuse 130 | 4L |
| N10 | SAM control unit | 17L |
| N28/1 | Trailer recognition control unit | 4A |
| N28/1 | Trailer recognition control unit | 12A |
| N28/1 | Trailer recognition control unit | 21A |
| N28/1 | Trailer recognition control unit | 28A |
| N28/1 | Trailer recognition control unit | 36A |
| N28/1 | Trailer recognition control unit | 45A |
| N69/1 | Left front door control unit | 56A |
| N69/2 | Right front door control unit | 56A |
| S142/2 | Trunk lid/liftgate fully electric trailer hitch switch | 49L |
| S142/3 | Driver door fully electric trailer hitch switch | 54L |
| U12 | Valid for left-hand drive vehicles | 52B |
| U13 | Valid for right-hand drive vehicles | 52B |
| W15/2 | Left footwell ground point | 27H |
| W7 | Right rear center section ground point | 12E |
| W7/9 | Trailer hitch ground point | 31H |
| W7/9 | Trailer hitch ground point | 41H |
| W8 | Liftgate ground point | 50H |
| X30/4 | Right potential distributor electrical connector (CAN) | 20L |
| X58 | Trailer socket | 39L |
| X58/11 | Trailer socket (7-pin) | 32L |
| X58/28 | Electric-Brake-Control electrical connector | 28L |
| X58/33 | Vehicle interior/trailer hitch electrical connector | 29H |