| Number | X-pin, colour | Description |
|---|---|---|
| X643 | 6-pin, Blue | Plug connector Sunroof control switch (SHD) |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | Not used | ||
| 2 | E | Night light signal | Connector, night lights |
| 3 | E | Signal supply, sunroof switch - lift | Sunroof module |
| 4 | E | Signal supply, sunroof switch - open | Sunroof module |
| 5 | E | Signal supply, sunroof switch - close | Sunroof module |
| 6 | M | Component ground, sunroof switch | Sunroof module |