| Number | X-pin, colour | Description | 
|---|---|---|
| X778 | 3 -pin, Black | Plug connector Driver's seat belt buckle switch | 
| Pin | Type | Description / Signal type | Connection / Measuring notes | 
|---|---|---|---|
| 1 | M | Ground | Ground connector | 
| 2 | A | Belt signal | Light module | 
| 3 | A | Belt signal | Airbag diagnostic module |