| Number | X-pin, colour | Description |
|---|---|---|
| X3148 | 9-pin, Black/White | Plug connector Relay, heated windscreen |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | Not used | ||
| 2 | A | Signal, terminal 87 | Heated side window, right |
| 3 | Not used | ||
| 4 | A | Signal, terminal 85 | Window heating control unit |
| 5 | A | Signal, terminal 87 | Heated windscreen |
| 6 | E | Voltage supply terminal 30 | Fuse box |
| 7 | Not used | ||
| 8 | E | Signal, terminal 86 | Fuse box |
| 9 | Not used | ||