| Number | X-pin, colour | Description |
|---|---|---|
| X62101 | 4-pin, Black | Plug connector Heated oxygen sensor 1 in front of catalytic converter |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | E | Terminal 87 | Fuse F3 |
| 2 | A | Signal, oxygen sensor heater | DME control unit |
| 3 | M | Oxygen sensor signal | DME control unit |
| 4 | E | Oxygen sensor signal | DME control unit |