| Number | X-pin, color | Description |
|---|---|---|
| X1544 | 9 -pin, Black | Connector Air injection pump relay |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | Not used | ||
| 2 | E | Terminal 30 voltage supply | Fuse F107 |
| 3 | Not used | ||
| 4 | A | Signal Air injection pump relay | Engine control module II (DME) |
| 5 | Not used | ||
| 6 | A | Secondary air injection pump series resistor | Air pump splice |
| 7 | Not used | ||
| 8 | E | Terminal 30 voltage supply | Fuse F17 |
| 9 | Not used | ||