| Number | X-pin, color | Description |
|---|---|---|
| X87 | 3 -pin, Black | Connector Dual temperature switch |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | E | Auxiliary fan stage 2, 104°C | Connector, auxiliary fan stage 1 1994_4 Auxiliary fan relay, stage 3 1995_9 |
| 2 | M | Ground | Ground point |
| 3 | E | Auxiliary fan stage 1, 91°C | Connector, auxiliary fan stage 1 |