| Number | X-pin, colour | Description |
|---|---|---|
| X302 | 10-pin, black | Adapter plug, driver's door |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | P-bus connector | B: up to 1995_08 P-bus connector B: as of 1995_09 Driver's door module | |
| 2 | Signal line, night lights | B: as of 1995_08 Switch block, driver's door B: up to 1995_09 Driver's door module | |
| 3 | Not used | ||
| 4 | Not used | ||
| 5 | Signal, dip mirror | B: Electrochromic outside mirror, driver's side | |
| 6 | Signal, dip mirror | B: Electrochromic outside mirror, driver's side | |
| 7 | Not used | ||
| 8 | Not used | ||
| 9 | Not used | ||
| 10 | Interior lights signal | B: Door lights | |