| Number | X-pin, color | Description |
|---|---|---|
| X62101 | 4-pin, Black | Connector Heated oxygen sensor I in front of catalytic converter |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | E | Terminal 87 | Fuse F3 |
| 2 | A | Oxygen sensor heater signal | Engine control module (DME) |
| 3 | M | Heated oxygen sensor signal | Engine control module (DME) |
| 4 | E | Heated oxygen sensor signal | Engine control module (DME) |