| Number | X-pin, colour | Description |
|---|---|---|
| X1312 | 18-pin, Yellow | Plug connector Navigation control unit |
| X1313 | 18-pin, Blue | Plug connector Navigation control unit |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | E | Reversing light signal | Light module |
| 2 | Not used | ||
| 3 | E | Terminal R | Unloader relay terminal R |
| 4 | Not used | ||
| 5 | Not used | ||
| 6 | Not used | ||
| 7 | Not used | ||
| 8 | E/A | Communication link TXD | GPS receiver |
| 9 | E/A | Communication link RXD | GPS receiver |
| 10 | E | Signal, left wheel speed | Connector, front left speed sensor |
| 11 | E | Signal, right wheel speed | Connector, front right speed sensor |
| 12 | Not used | ||
| 13 | Not used | ||
| 14 | Not used | ||
| 15 | Not used | ||
| 16 | E | Pulse per second | GPS receiver |
| 17 | E/A | Communication link TXDN | GPS receiver |
| 18 | E/A | Communication link RXDN | GPS receiver |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | E | Voltage supply terminal 30 | Fuse F64 Saloon Fuse F56 Touring |
| 2 | Not used | ||
| 3 | E/A | I-bus signal line | I-bus connector |
| 4 | A | Navigation video signal, red | Video module |
| 5 | Not used | ||
| 6 | Not used | ||
| 7 | Not used | ||
| 8 | A | Navigation video signal, green | Video module |
| 9 | A | Acoustic signal | Video module |
| 10 | M | Ground | Ground point |
| 11 | Not used | ||
| 12 | Not used | ||
| 13 | A | Navigation video signal, blue | Video module |
| 14 | Not used | ||
| 15 | M | Shield | Video module |
| 16 | Not used | ||
| 17 | A | Synchronisation signal | Video module |
| 18 | M | Ground Acoustic signal | Video module |