| Number | X-pin, colour | Description |
|---|---|---|
| X1024 | 9-pin, Black | Plug connector Relay for latent heat accumulator |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | Not used | ||
| 2 | E | Voltage supply terminal 30 | Fuse F46 |
| 3 | Not used | ||
| 4 | E | Relay activation Relay for latent heat accumulator | Heating and A/C control module |
| 5 | Not used | ||
| 6 | A | Component supply (terminal 15) | Heating blower relay |
| 7 | Not used | ||
| 8 | M | Ground | Ground connector |
| 9 | Not used | ||