| Number | X-pin, colour | Description |
|---|---|---|
| X1958 | 12-pin, Black | Plug connector GPS receiver |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | M | Ground | Ground point |
| 2 | E/A | Communication link TXD | Navigation control unit |
| 3 | E/A | Communication link TXDN | Navigation control unit |
| 4 | E/A | Communication link RXDN | Navigation control unit |
| 5 | E/A | Communication link RXD | Navigation control unit |
| 6 | E | Pulse per second | Navigation control unit |
| 7 | E | Terminal R | Unloader relay terminal R |
| 8 | E | Voltage supply terminal 30 | Fuse F64 Saloon Fuse F56 Touring |
| 9 | Not used | ||
| 10 | Not used | ||
| 11 | Not used | ||
| 12 | Not used | ||