| Number | X-pin, colour | Description |
|---|---|---|
| X6304 | 8-pin, black | Plug connector Secondary air pump relay |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | Not used | ||
| 2 | E | Terminal 30 | Fuse F36 |
| 3 | Not used | ||
| 4 | A | Signal Secondary air pump | Digital motor electronics control unit |
| 5 | M | Ground | Ground point |
| 6 | A | Secondary air pump Via relay | Secondary air pump |
| 7 | Not used | ||
| 8 | E | Terminal 30 | Fuse F3 |