| Number | X-pin, colour | Description | 
|---|---|---|
| X352 | 3-pin, Natural | Plug connector Driver's door contact switch | 
| Pin | Type | Description / Signal type | Connection / Measuring notes | 
|---|---|---|---|
| 1 | E | Door contact signal | Intercom control unit (WSA) | 
| 2 | A | Ground Driver's door contact switch | Ground point | 
| 3 | Not used | ||